atelNum
int64 1
15.2k
| title
stringlengths 8
376
| authors
stringlengths 3
6.6k
| body
stringlengths 11
5.12k
| submissionDate
stringlengths 19
19
| keywords
stringlengths 4
185
| submissionDay
stringlengths 10
10
| submissionTime
stringlengths 8
8
| length_of_text
int64 11
5.12k
| embedding
list | idx
int64 0
15.2k
|
|---|---|---|---|---|---|---|---|---|---|---|
14,302 |
XB-NEWS detects a probable new outburst from Cen X-4 after 41 years
|
Payaswini Saikia, Maria Cristina Baglio, David M. Russell (NYU Abu Dhabi), Jeroen Homan (Eureka Scientific & SRON), Stefan Waterval, D. M. Bramich (NYU Abu Dhabi), Fraser Lewis (Faulkes Telescope Project & Astrophysics Research Institute, LJMU), Jakob van den Eijnden (Univ. of Oxford)
|
Cen X-4 is a neutron star X-ray transient discovered in 1979 during an outburst. It has since been in quiescence for almost 41 years. Recently, ATel #14254 indicated that Cen X-4 might enter an outburst in the near future, based on a gradual, significant, optical brightening detected in the long term (12 years) optical monitoring of the source with the Las Cumbres Observatory (LCO) 2-m and 1-m robotic telescopes. The last data reported in ATel #14254 were obtained in August 2020, when the optical magnitudes of the source were V = 18.31 +/- 0.17, i' = 17.40 +/- 0.11, as compared to a fainter V = 18.43 +/- 0.10, i' = 17.46 +/- 0.09 during 2017-2018. Since the start of September, the source has been Sun-constrained. We have been closely monitoring the source with LCO, since it re-emerged from the Sun constraint at the end of 2020 December. For the analysis of the LCO data, we are making use of the real-time data analysis pipeline, the "X-ray Binary New Early Warning System" (XB-NEWS; see Russell et al. 2019, Goodwin et al. 2020 and ATel #13451 for details). We resumed our LCO observations on MJD 59213.3 (2020 December 30) after the Sun constraint ended, and found the source to be significantly brighter than before with optical magnitudes V=17.86 +/- 0.06 and i'=17.04 +/- 0.02. The most recent observations made on MJD 59219 (2021 January 5) show a steep rise in the optical emission, with V = 17.58 +/- 0.03, i'=16.69 +/- 0.02, g' = 17.66 +/- 0.03, r' = 17.02 +/- 0.02 and Y = 21.70 +/- 0.08. From our long-term monitoring of Cen X-4 with LCO, we find that the modulation of the source is approximately 0.1 mag amplitude, which is much smaller than what is required to explain the amplitude of the variability (see ATel #14254). This suggests that Cen X-4 is entering a new outburst after ~41 years in quiescence. After the start of the optical flux rise, the Neil Gehrels Swift Observatory (Swift) / UVOT observed with the UVW1 filter, resulting in an AB magnitude of 19.74 +/- 0.09 on MJD 59211 (2020 December 28). This is consistent with the range of quiescent magnitudes shown in Bernardini et al. 2013, that reported on large variations in the UVW1 band, spanning the range of (AB) magnitudes ~21.3-19.4. Later, observations with the UVM2 filter have been performed, obtaining an AB magnitude of 19.64 +/- 0.11 on MJD 59214 (2020 December 31) and 19.33 +/- 0.08 on MJD 59218 (2021 January 4), thus suggesting a rise also at UV wavelengths. These results also show that the system is brighter now than it was in quiescence, since Cackett et al. 2013 reported a UVM2 magnitude of 19.85 +/- 0.14 on MJD 56048 (2012 May 1). The optical monitoring of the source with LCO is still ongoing. Further quasi-simultaneous multiwavelength observations are encouraged in order to confirm the outburst and trace the rise of the source. As Cen X-4 is very close-by (distance ~ 1.2 kpc), it is a promising candidate to study how multi-wavelength emission processes are coupled at the fainter, early stages of an low-mass X-ray binary outburst. The LCO observations are part of an on-going monitoring campaign of ~ 50 low-mass X-ray binaries (Lewis et al. 2008) with LCO and the Faulkes Telescopes. We acknowledge the support of the NYU Abu Dhabi Research Enhancement Fund under grant RE124.
|
2021-01-06 18:09:00
|
optical,ultra-violet,x-ray,binary,neutron star,star,the sun,transient
|
2021-01-06
|
18:09:00
| 3,297 |
[
-0.029534630477428436,
-0.053430087864398956,
0.05591903626918793,
0.04490550234913826,
0.05028276890516281,
-0.056185461580753326,
0.004420282319188118,
0.05475760996341705,
0.011050711385905743,
-0.02221827022731304,
0.038393791764974594,
-0.065721794962883,
0.029909834265708923,
-0.014136441983282566,
-0.03990385681390762,
0.028486520051956177,
0.002704611048102379,
-0.09356746077537537,
0.006526235956698656,
-0.009354883804917336,
-0.011412006802856922,
-0.03163828328251839,
-0.020105306059122086,
0.02784183993935585,
0.010993088595569134,
-0.03307998180389404,
0.015811115503311157,
-0.09335863590240479,
0.015870941802859306,
-0.006542412098497152,
0.05480269715189934,
0.06496579945087433,
-0.03549116104841232,
0.04625421389937401,
0.0368938148021698,
0.0267739649862051,
0.09482195228338242,
-0.06398957967758179,
-0.05998251959681511,
-0.049258455634117126,
0.0539340041577816,
-0.09445159137248993,
0.06019224226474762,
-0.06186644732952118,
0.018468685448169708,
-0.0022754024248570204,
0.0255522970110178,
-0.0965287834405899,
-0.024602962657809258,
0.017597170546650887,
0.028468988835811615,
-0.078470878303051,
0.0688851997256279,
-0.005987850017845631,
0.08531013876199722,
0.007235601544380188,
-0.055521488189697266,
-0.05183050408959389,
0.053300585597753525,
0.04731486737728119,
0.06993114203214645,
0.02787509374320507,
-0.03543855994939804,
-0.01289746630936861,
0.06048687547445297,
0.074021115899086,
0.007195211946964264,
-0.07345717400312424,
0.015145841985940933,
-0.0011208350770175457,
0.026145804673433304,
0.04462209343910217,
0.03386098891496658,
-0.031375374644994736,
-0.011261454783380032,
0.022716209292411804,
0.11137751489877701,
-0.03150637447834015,
0.02915506437420845,
-0.08005166798830032,
-0.0015183185460045934,
0.04043992981314659,
-0.051133692264556885,
-0.048139575868844986,
-0.04163769260048866,
0.015009167604148388,
-0.014240401796996593,
0.009283655323088169,
-0.009292158298194408,
0.07240305840969086,
0.026765400543808937,
0.004489346873015165,
-0.07061510533094406,
-0.018096713349223137,
0.08334478735923767,
0.0015137785812839866,
0.06680413335561752,
-0.06598121672868729,
0.08349631726741791,
0.028803156688809395,
0.01725953258574009,
0.06629391759634018,
-0.09673503041267395,
0.04507531598210335,
-0.04958203434944153,
0.009019295684993267,
0.08776155859231949,
0.07730738818645477,
-0.08400534093379974,
0.050557781010866165,
0.06298181414604187,
-0.07542452961206436,
0.011594596318900585,
-0.10384030640125275,
-0.035387344658374786,
0.03508473560214043,
-0.03976261988282204,
0.054681744426488876,
-0.07707919180393219,
-0.046845775097608566,
-0.03483036532998085,
0.029299231246113777,
-0.019042281433939934,
0.10508392006158829,
0.03904792666435242,
0.005385584197938442,
-0.060908302664756775,
3.7993781067720875e-33,
0.07809470593929291,
0.06958412379026413,
-0.03583814948797226,
-0.0038605947047472,
0.005705628078430891,
-0.020580537617206573,
0.05103326216340065,
0.08324841409921646,
-0.08380158990621567,
-0.06877664476633072,
-0.020415617153048515,
0.022872552275657654,
0.003307783743366599,
-0.041743598878383636,
-0.01895170472562313,
-0.09663870930671692,
0.0844356119632721,
0.04864415153861046,
-0.0565214678645134,
0.021534565836191177,
-0.0542454868555069,
-0.05345362424850464,
-0.03487206622958183,
0.00017296694568358362,
-0.008905173279345036,
0.08327406644821167,
-0.003437751205638051,
0.024630272760987282,
0.004032404627650976,
0.004819717723876238,
-0.009929794818162918,
0.04208974912762642,
0.01170828752219677,
0.03535434603691101,
-0.027125516906380653,
-0.004042907152324915,
-0.01696057990193367,
0.03487013652920723,
-0.01760229282081127,
0.03041139617562294,
0.04091876372694969,
0.050460848957300186,
0.01208418607711792,
-0.03572347015142441,
0.028932545334100723,
-0.01744772493839264,
-0.0626547560095787,
-0.06523095071315765,
0.05089055374264717,
-0.004105455707758665,
0.036851704120635986,
-0.03135969489812851,
-0.06652550399303436,
-0.018664410337805748,
0.05130238085985184,
0.02625710517168045,
-0.01754952408373356,
-0.02356947772204876,
0.0074485852383077145,
-0.03828391432762146,
0.043656423687934875,
-0.0126850800588727,
-0.06293123215436935,
-0.015461872331798077,
0.004123020451515913,
0.0995234027504921,
-0.030420809984207153,
-0.034242354333400726,
-0.07067955285310745,
0.025144850835204124,
-0.06362458318471909,
0.021444296464323997,
0.05587460845708847,
-0.0762845054268837,
0.1244511529803276,
-0.009649907238781452,
-0.04925164952874184,
0.07629920542240143,
0.022724231705069542,
0.05578327178955078,
-0.03858884796500206,
-0.023364659398794174,
0.05253138020634651,
-0.04327904433012009,
-0.03581451624631882,
0.06827151775360107,
-0.020863132551312447,
0.030215298756957054,
0.02475488930940628,
-0.00009949201194103807,
0.06752564758062363,
-0.09085433930158615,
-0.009452645666897297,
-0.028271116316318512,
-0.1434871107339859,
-4.2414650017270414e-33,
-0.00876564346253872,
0.03810355067253113,
-0.033315952867269516,
0.08793008327484131,
-0.014030118472874165,
0.020733384415507317,
-0.02175140380859375,
0.048388902097940445,
-0.04698863625526428,
-0.05392080917954445,
0.11415096372365952,
-0.0031500444747507572,
-0.030454302206635475,
-0.07753641158342361,
0.04650413617491722,
0.05576864257454872,
0.00008133408846333623,
-0.027417227625846863,
-0.0654233768582344,
-0.0025221197865903378,
0.045507341623306274,
0.035778146237134933,
-0.007281565107405186,
-0.06482520699501038,
0.05214950069785118,
0.025774041190743446,
0.11930304765701294,
-0.012852795422077179,
0.0008629871299490333,
-0.002119440119713545,
-0.15380021929740906,
-0.011306323111057281,
-0.024894028902053833,
0.02353663556277752,
-0.01283575501292944,
-0.02148522436618805,
-0.013179844245314598,
-0.021919965744018555,
-0.06598798930644989,
0.01080215722322464,
-0.02411048673093319,
0.11774582415819168,
-0.019831737503409386,
0.05976293236017227,
-0.008596203289926052,
0.027769502252340317,
0.05611785501241684,
0.09592904150485992,
0.07601740211248398,
0.06469375640153885,
0.046809107065200806,
-0.026174228638410568,
-0.015526881441473961,
0.029060738161206245,
-0.047299567610025406,
0.048804108053445816,
0.010511628352105618,
0.09532936662435532,
-0.01681356504559517,
0.0017630435759201646,
-0.01453605480492115,
-0.07951261103153229,
0.06714008748531342,
0.002638016827404499,
0.009694415144622326,
-0.029189251363277435,
-0.04296822473406792,
0.07803458720445633,
0.013848635368049145,
-0.065127894282341,
0.11709301173686981,
-0.07449232786893845,
-0.048857226967811584,
-0.03968283534049988,
0.002638018922880292,
0.01717354729771614,
-0.041766613721847534,
-0.08304128795862198,
-0.017714766785502434,
0.026037871837615967,
-0.06185385584831238,
0.053358931094408035,
0.07305530458688736,
-0.023174148052930832,
0.06710386276245117,
0.036520816385746,
0.035828087478876114,
-0.011183004826307297,
-0.016896119341254234,
-0.09123766422271729,
-0.04635225236415863,
0.00052423938177526,
-0.00886397436261177,
-0.0533481240272522,
0.06269574165344238,
-5.351273912879151e-8,
0.007750782184302807,
0.06636092811822891,
-0.09668319672346115,
0.02903619408607483,
0.04006236419081688,
-0.05273842439055443,
0.011380353011190891,
0.05817407742142677,
0.015409744344651699,
-0.02688402310013771,
0.029048563912510872,
-0.037283755838871,
0.009667251259088516,
-0.0928787812590599,
0.055686164647340775,
-0.027423594146966934,
-0.021111277863383293,
-0.09650855511426926,
-0.053092338144779205,
0.0320829302072525,
0.021145466715097427,
-0.005553121212869883,
0.04962054640054703,
-0.052839651703834534,
-0.08528652042150497,
0.02600034512579441,
0.012201877310872078,
0.08653844147920609,
0.002608656883239746,
-0.08945246785879135,
-0.041028622537851334,
0.0258158128708601,
-0.003507213667035103,
-0.05047950893640518,
-0.002628139453008771,
0.047681428492069244,
-0.08373559266328812,
0.016635430976748466,
0.08673714846372604,
0.10240606963634491,
-0.04253571480512619,
-0.04781901463866234,
0.03281014412641525,
0.04625539109110832,
-0.07889660447835922,
0.06061895936727524,
0.020865805447101593,
-0.08034258335828781,
-0.004419646225869656,
0.0033115309197455645,
-0.007097553461790085,
0.033236708492040634,
-0.01246018335223198,
-0.08315911144018173,
-0.08300626277923584,
-0.009445522911846638,
0.02100074104964733,
-0.017784124240279198,
-0.05094815790653229,
0.014456971548497677,
0.12734033167362213,
-0.09568100422620773,
-0.058597955852746964,
-0.0050934371538460255
] | 14,300 |
14,303 |
Swift and NICER X-ray monitoring of the probable new outburst of Cen X-4
|
J. van den Eijnden (Univ. of Oxford), J. Homan (Eureka Scientific & SRON), Payaswini Saikia, Maria Cristina Baglio, David M. Russell, Stefan Waterval, D. M. Bramich (NYU Abu Dhabi), Fraser Lewis (Faulkes Telescope Project & Astrophysics Research Institute, LJMU), P. Roche (Cardiff University)
|
Cen X-4 is a close-by (~1.2 kpc) low-mass X-ray binary, hosting a neutron star accretor. After its discovery outburst in 1979, it remained in quiescence for over four decades. Recently, based on 12 years of optical monitoring with the Las Cumbres Observatory (LCO) 2-m and 1-m robotic telescopes, ATel #14254 suggested the possible onset of a new outburst in the near future. A sharp rise in the optical and UV has been observed in the past week, suggesting that a new outburst has now started (ATel #14302). Since Cen X-4 emerged from Sun constraint on 28 December 2020, we have monitored the X-ray binary at X-ray wavelengths with the Neil Gehrels Swift observatory (Swift) and the Neutron Star Interior Composition ExploreR (NICER). Swift and NICER light curves can be found at the link below.
Swift observed Cen X-4 on 28 and 31 December 2020, and 4 January 2021, with exposure times between ~0.5 and 1 ks. The X-ray Telescope (XRT) operated in Photon Counting mode for all observations. We used the online Swift pipeline (Evans et al. 2007, A&A, 469, 379) to extract the XRT light curve. Cen X-4 is significantly detected in all observations, and is brightening over time: we measure count rates of 0.155 +/- 0.017 ct/s, 0.266 +/- 0.037 ct/s, and 0.569 +/- 0.034 ct/s in the 1st, 2nd, and 3rd observation, respectively. The latter two count rates exceed the historical maximum count rate of Cen X-4 in quiescence observed by Swift (~0.22 ct/s; Tudor et al. 2017, MNRAS, 470, 324).
NICER has been performing daily observations of Cen X-4 since January 1 2021, with exposure times between ~0.6 and ~4.2 ks. The 0.5-10 keV light curves show strong variability (by factors of up to four) on time scales of a few tens to a few hundred seconds. To reduce the intrinsic scatter we produced a light curve from daily averaged count rates. A rising trend is seen, with a large jump in count rate between January 4 and January 5.
In order to measure the X-ray flux, we fitted the NICER spectrum taken on 2 January 2021 and the Swift/XRT spectrum from 4 January 2021. Following Chakrabarty et al. (2014, ApJ, 797, 92), who modeled XMM-Newton/NuSTAR spectrum of Cen X-4, we fit both spectra in XSPEC with a model combining interstellar absorption, a neutron star atmosphere (nsatmos, with neutron-star mass of 1.9 solar mass and a radius of 9 km) and a cutoff power law (cutoffpl). This model provided a good description of the quiescent spectra. For the NICER and Swift spectra, respectively, we fix the absorption column density N_H to 9E+20 cm-2 and the cutoff energy to 10 keV. We measured power law indices of Gamma ~ 2.0 ( NICER) and Gamma ~ 1.5 (Swift). The effective atmosphere temperature in the Swift observation was higher than in the NICER observation, ~89 eV and ~80 eV respectively, while the 0.5-10 keV flux in the cutoff power-law component had doubled. All measured parameters are broadly consistent with those reported by Chakrabarty et al. (2014).
The unabsorbed 0.5 - 10 keV X-ray fluxes measured by NICER and Swift are, respectively, F_X ~ 7.4E-12 erg s-1 cm-2 and F_X ~ 1.5E-11 erg s-1 cm-2. Assuming a distance of 1.2 kpc, these fluxes correspond to X-ray luminosities of L_X ~ 1.2E33 erg s-1 and L_X ~ 2.6E33 erg s-1.
The sudden X-ray brightening (to levels not seen before with Swift) suggests that Cen X-4 is entering a new outburst, supporting the report in ATel #14302 of an outburst start based on optical and UV observations. Given the proximity of Cen X-4 and the rarity of its outbursts, we strongly encourage multi-wavelength follow up. X-ray monitoring with Swift and NICER will continue.
We are grateful to the Swift and NICER teams for rapidly approving, scheduling, and performing these observations.
|
2021-01-06 18:13:00
|
optical,x-ray,binary,neutron star,star,the sun,transient
|
2021-01-06
|
18:13:00
| 3,735 |
[
-0.01881863735616207,
-0.04751609265804291,
0.037751369178295135,
-0.0008289539255201817,
0.04783271625638008,
-0.06507043540477753,
-0.017850976437330246,
0.0534231960773468,
-0.015017461031675339,
-0.03547557070851326,
0.04264673590660095,
-0.07450330257415771,
0.03171972185373306,
-0.011879394762217999,
-0.015061597339808941,
0.00017600164574105293,
-0.005753166973590851,
-0.1177331730723381,
0.021347852423787117,
0.030097566545009613,
-0.027859212830662727,
0.002337419893592596,
-0.020202161744236946,
0.039022862911224365,
-0.008895235136151314,
-0.035756826400756836,
-0.011317308060824871,
-0.12392885237932205,
0.002511656377464533,
-0.028180032968521118,
0.03181558847427368,
0.03735930472612381,
-0.029431939125061035,
0.04854737967252731,
0.04757170379161835,
0.018446708098053932,
0.10103843361139297,
-0.06626873463392258,
-0.03424188122153282,
-0.03475732356309891,
0.019671671092510223,
-0.07274653762578964,
0.047781843692064285,
-0.020093170925974846,
0.018395254388451576,
0.028385499492287636,
0.01316154096275568,
-0.09056023508310318,
-0.006494639441370964,
0.013930951245129108,
0.032210852950811386,
-0.053904831409454346,
0.058707643300294876,
0.009194059297442436,
0.09134426712989807,
-0.022149592638015747,
-0.07088852673768997,
-0.07316480576992035,
0.05681735277175903,
0.07773741334676743,
0.08544358611106873,
0.02859603241086006,
-0.030178332701325417,
0.01724340207874775,
0.07044249773025513,
0.06644019484519958,
-0.004868723452091217,
-0.0605664886534214,
0.007535945158451796,
0.032208122313022614,
0.019578009843826294,
0.023938748985528946,
-0.0009630583808757365,
-0.021828668192029,
-0.011983188800513744,
0.04019547253847122,
0.10999160259962082,
-0.04638411104679108,
0.03087644651532173,
-0.0635036826133728,
-0.02557765506207943,
0.08200653642416,
-0.03385215625166893,
-0.04010412096977234,
-0.06886619329452515,
-0.0009949967497959733,
-0.023758064955472946,
0.007061052601784468,
-0.008991586975753307,
0.0774550586938858,
0.07565148919820786,
0.05712885037064552,
-0.06445368379354477,
-0.01021778117865324,
0.06738359481096268,
-0.008416622877120972,
0.0928126722574234,
-0.0388236902654171,
0.09294997900724411,
0.03710267320275307,
0.020678933709859848,
0.0765938013792038,
-0.07609869539737701,
0.06476368010044098,
-0.033898692578077316,
-0.038654934614896774,
0.06573136895895004,
0.056090906262397766,
-0.11129096895456314,
0.044174980372190475,
0.03204810246825218,
-0.05777827650308609,
-0.011610216461122036,
-0.09539707750082016,
-0.020542891696095467,
0.03542223572731018,
-0.013778102584183216,
0.03916401043534279,
-0.08219821006059647,
-0.04560410603880882,
-0.052046552300453186,
0.024831105023622513,
-0.030453400686383247,
0.06434330344200134,
0.032125260680913925,
0.013861267827451229,
-0.07116395980119705,
3.5274363049169825e-33,
0.0640355795621872,
0.06411810219287872,
-0.006832239683717489,
0.00710835587233305,
-0.001417576102539897,
-0.004467204213142395,
0.03928232938051224,
0.12823231518268585,
-0.07789251208305359,
-0.03568940982222557,
-0.030460435897111893,
0.018081776797771454,
-0.006886523216962814,
-0.06850302219390869,
-0.021452538669109344,
-0.11521320790052414,
0.0689055323600769,
0.046450335532426834,
-0.07388734072446823,
0.018932314589619637,
-0.05690803378820419,
-0.04477379843592644,
-0.027457697317004204,
0.018012477084994316,
0.006127421278506517,
0.08824626356363297,
0.015853507444262505,
-0.006461927201598883,
-0.004481014329940081,
0.009272834286093712,
-0.05690007284283638,
0.009106634184718132,
0.003360495902597904,
0.07728921622037888,
-0.022582046687602997,
-0.0134250083938241,
-0.03515208512544632,
0.01828743889927864,
-0.05051877722144127,
0.024367032572627068,
0.0164126455783844,
0.050670966506004333,
-0.0005261534242890775,
-0.0668104812502861,
0.03802753612399101,
-0.010946684516966343,
-0.0003449333307798952,
-0.0721396654844284,
-0.001032280153594911,
-0.017593316733837128,
0.06547872722148895,
0.013868524692952633,
-0.08884894847869873,
-0.003580279415473342,
0.08057656139135361,
0.0011244530323892832,
0.002218501642346382,
-0.052906643599271774,
-0.05342018976807594,
-0.024441681802272797,
0.06186186149716377,
-0.003143350128084421,
-0.06933283805847168,
0.026688240468502045,
0.014693303033709526,
0.09629113227128983,
-0.021389320492744446,
-0.041399791836738586,
-0.05159681662917137,
0.01848519966006279,
-0.08036932349205017,
-0.019307874143123627,
0.06518038362264633,
-0.07966496050357819,
0.1362173855304718,
-0.00737427594140172,
-0.033743493258953094,
0.041530389338731766,
0.01595611497759819,
0.05419781059026718,
-0.026318589225411415,
-0.029401810839772224,
0.06116118282079697,
-0.06043078005313873,
-0.042882196605205536,
0.017841001972556114,
0.017994115129113197,
0.05636643245816231,
0.07403331249952316,
0.00002610189767437987,
0.029234277084469795,
-0.09845820814371109,
-0.010282840579748154,
0.00014167399785947055,
-0.12155554443597794,
-3.612171080512038e-33,
-0.0016348245553672314,
0.004116312135010958,
-0.008419476449489594,
0.05350693315267563,
-0.03726624324917793,
0.02078017219901085,
-0.03973080962896347,
0.024182531982660294,
-0.05338037759065628,
-0.0632401704788208,
0.0871134027838707,
0.003920095972716808,
0.023264257237315178,
-0.04130091890692711,
0.05136703699827194,
0.05686480551958084,
-0.01847793161869049,
-0.02130642719566822,
-0.07175994664430618,
0.010532771237194538,
0.07579699158668518,
0.054776012897491455,
-0.02917235903441906,
-0.09595481306314468,
0.045796021819114685,
0.026179874315857887,
0.10569421947002411,
0.003648509504273534,
0.06384416669607162,
-0.010592538863420486,
-0.14870068430900574,
-0.027408786118030548,
0.0005793446325697005,
0.03516102582216263,
0.0011264620115980506,
-0.03584359958767891,
-0.005976409651339054,
0.020317962393164635,
-0.06519713252782822,
-0.006846432574093342,
-0.02807871252298355,
0.11567584425210953,
-0.020855611190199852,
0.07404898852109909,
0.0238303542137146,
0.021520067006349564,
0.06170922890305519,
0.11688095331192017,
0.0728636234998703,
0.07674039900302887,
0.0230829119682312,
-0.04863126203417778,
0.006992720067501068,
0.027902716770768166,
-0.04204291105270386,
0.0721939280629158,
-0.019013987854123116,
0.06085548922419548,
-0.005869049578905106,
-0.009334183298051357,
-0.012715312652289867,
-0.08072718977928162,
0.0691695436835289,
-0.01461033895611763,
0.031593646854162216,
-0.05667530372738838,
-0.04760263115167618,
0.09610901027917862,
-0.0452384352684021,
-0.043728914111852646,
0.0731109082698822,
-0.1020924523472786,
-0.03181633725762367,
-0.03639891743659973,
0.011166350916028023,
0.022923283278942108,
-0.036832261830568314,
-0.10443495213985443,
0.007572188042104244,
0.024865953251719475,
-0.06242583692073822,
0.08957934379577637,
0.08354935050010681,
-0.00043359710252843797,
0.07837969064712524,
0.07901139557361603,
0.024341795593500137,
0.007077311165630817,
-0.014747442677617073,
-0.07613523304462433,
-0.03838576003909111,
0.007510472554713488,
0.017761990427970886,
0.011669240891933441,
0.050514183938503265,
-4.7104620648497075e-8,
0.013197198510169983,
0.07867828756570816,
-0.06462465971708298,
0.016093166545033455,
0.06576608866453171,
-0.03153230622410774,
-0.004318585153669119,
0.03331952542066574,
0.0401044525206089,
0.00863741897046566,
0.028280049562454224,
-0.013563867658376694,
-0.013256636448204517,
-0.08783987909555435,
0.019148189574480057,
-0.017252013087272644,
-0.0143771106377244,
-0.11887912452220917,
-0.025949746370315552,
0.04416169971227646,
0.0063006943091750145,
-0.02254016511142254,
0.04604668170213699,
-0.049058087170124054,
-0.0730649009346962,
0.0069897351786494255,
0.015298525802791119,
0.09449004381895065,
0.001904557808302343,
-0.06773968786001205,
-0.0788126140832901,
0.022314205765724182,
0.003662924049422145,
-0.06440816819667816,
-0.03447173535823822,
0.039511531591415405,
-0.08356783539056778,
0.010868387296795845,
0.0936608538031578,
0.05528603494167328,
0.0006678538047708571,
-0.047003373503685,
0.02084827609360218,
0.039093103259801865,
-0.07891665399074554,
0.03408953174948692,
-0.009379488416016102,
-0.07742800563573837,
0.00902505312114954,
0.0017014765180647373,
-0.03636408969759941,
0.00408859271556139,
0.012646747753024101,
-0.06822912395000458,
-0.029847053810954094,
0.05301053449511528,
0.007919142954051495,
-0.04541251063346863,
-0.0349181592464447,
0.04225008934736252,
0.06810097396373749,
-0.10588491708040237,
-0.06488421559333801,
-0.007542704697698355
] | 14,301 |
14,304 |
OHP classification of Atlas21aao (=AT2021fv) as a Ia SN a few days before maximum
|
M. Dennefeld (IAP-Paris and Sorbonne University), C. Adami (LAM-Marseille), J. Schmitt and J. P. Troncin (OHP and OSU Pytheas)
|
During a further test run of the new spectro-imager Mistral attached to the 1.93m telescope at Haute-Provence Observatory (OHP-CNRS), we observed the transient ATLAS21aao (=AT2021fv) on Jan. 06.021 UT. The useful range was 408-812 nm and the slit was opened at 2" (4 pixels of 0.20 nm each). From GELATO (Harutyunyan et al. 2008, A&A, 488, 383), the best match is obtained with the Ia SN 1992A 4-5 days before the B maximum. Using the redshift of the host galaxy CGCG 033-001 of 0.0260 (from NED-IPAC), we derive an expansion velocity of 13070 km/s from the SiII 635.5 nm line, consistent with the classification.
|
2021-01-07 05:08:00
|
optical,supernovae,transient
|
2021-01-07
|
05:08:00
| 613 |
[
-0.12298496067523956,
0.034422826021909714,
0.010824029333889484,
-0.015239210799336433,
0.030981678515672684,
-0.06909766793251038,
-0.09122742712497711,
0.06094503402709961,
0.019727831706404686,
-0.0705605000257492,
0.06388548016548157,
-0.07635852694511414,
-0.02414039336144924,
-0.0774541050195694,
0.034493036568164825,
-0.043415289372205734,
-0.0051450724713504314,
-0.09478054940700531,
0.006406099069863558,
0.01203219685703516,
-0.062237270176410675,
0.06068083271384239,
-0.07508835196495056,
0.028490958735346794,
0.09480933099985123,
-0.03378557041287422,
-0.059075694531202316,
-0.020201826468110085,
0.04573674127459526,
-0.03585895523428917,
0.06634394824504852,
0.09561873227357864,
-0.06983642280101776,
0.050440359860658646,
0.049529045820236206,
-0.014460236765444279,
0.0018448648042976856,
-0.04008284956216812,
0.038403578102588654,
0.023843659088015556,
0.047200918197631836,
-0.027461685240268707,
0.019298670813441277,
0.013644946739077568,
-0.020841732621192932,
0.019380049780011177,
0.030896225944161415,
0.06010913848876953,
-0.02954518422484398,
0.0038916950579732656,
-0.023768099024891853,
0.021465258672833443,
0.014112899079918861,
0.012349848635494709,
-0.02451360411942005,
0.0018092368263751268,
-0.04906860738992691,
-0.08640988171100616,
0.08354530483484268,
-0.023857848718762398,
0.02653469331562519,
-0.04358653351664543,
-0.03240307420492172,
-0.014703119173645973,
-0.03245297819375992,
-0.002148001454770565,
-0.018217964097857475,
-0.10872025787830353,
0.09554175287485123,
-0.03772479295730591,
-0.05774986371397972,
0.012794315814971924,
0.021914029493927956,
-0.011266505345702171,
0.0017108679749071598,
0.07591836899518967,
0.08438952267169952,
0.02494862675666809,
0.05301370844244957,
-0.1091982051730156,
0.06958308070898056,
0.02524835802614689,
-0.06405103206634521,
-0.02804093435406685,
0.0026649488136172295,
-0.007170338183641434,
-0.006830708123743534,
0.06561831384897232,
0.03206188976764679,
-0.012788599357008934,
0.06670943647623062,
-0.01605158858001232,
-0.1257801204919815,
-0.025906886905431747,
-0.013009337708353996,
0.029129181057214737,
0.02516973577439785,
-0.02132045291364193,
0.06204402819275856,
0.04985705390572548,
0.09727904200553894,
-0.018588729202747345,
-0.060953084379434586,
0.07341092079877853,
0.002239109482616186,
0.051099393516778946,
0.05095461755990982,
0.046020857989788055,
0.0014661828754469752,
0.021805930882692337,
0.05459824949502945,
0.00044951471500098705,
-0.010895873419940472,
-0.14335963129997253,
-0.034062545746564865,
0.015048702247440815,
-0.03777717426419258,
0.07727668434381485,
-0.03343673422932625,
-0.011748486198484898,
-0.06350453197956085,
0.006769479718059301,
-0.0291128046810627,
-0.0016656791558489203,
0.03784996643662453,
-0.02388179861009121,
-0.0628536194562912,
4.064093189763528e-33,
0.025575274601578712,
0.037839628756046295,
-0.06359818577766418,
0.011853808537125587,
0.013820486143231392,
-0.01426638662815094,
-0.05008877068758011,
0.07395942509174347,
-0.07688278704881668,
-0.012918231077492237,
-0.10079141706228256,
-0.06688599288463593,
-0.03864709287881851,
-0.030826400965452194,
0.002671722788363695,
-0.03659827262163162,
0.048496946692466736,
0.01280464231967926,
-0.12793391942977905,
0.035719119012355804,
-0.008018838241696358,
-0.005685625597834587,
-0.02974395640194416,
0.021158035844564438,
0.07039691507816315,
0.10796499252319336,
0.01656585931777954,
0.0005076811648905277,
0.018450547009706497,
0.006905847694724798,
0.010840361937880516,
-0.03488100692629814,
-0.0061463965103030205,
-0.025149939581751823,
-0.019954046234488487,
-0.021732335910201073,
-0.058381337672472,
-0.0189984068274498,
0.052991755306720734,
-0.006376231554895639,
0.041001513600349426,
0.07533890753984451,
-0.04660222306847572,
0.012850301340222359,
0.046585142612457275,
-0.03470984473824501,
-0.009538724087178707,
0.025685640051960945,
0.07292349636554718,
-0.014942007139325142,
0.03677821904420853,
-0.06511709094047546,
-0.0747809186577797,
0.04484853893518448,
0.019760992377996445,
-0.014474324882030487,
-0.020407717674970627,
-0.016125526279211044,
0.017745641991496086,
0.04506172239780426,
0.05745933949947357,
-0.022085776552557945,
-0.033142488449811935,
0.09453211724758148,
-0.008119319565594196,
0.03806005045771599,
-0.029846560209989548,
0.05108679458498955,
-0.04047906771302223,
0.021736634895205498,
-0.004372891969978809,
0.02935265749692917,
0.10391617566347122,
-0.03573199361562729,
0.12724646925926208,
-0.053614161908626556,
-0.009615270420908928,
-0.01882782392203808,
0.027126852422952652,
0.032322682440280914,
-0.1352919489145279,
0.012410766445100307,
0.02938701957464218,
-0.020781053230166435,
-0.12925943732261658,
-0.012455904856324196,
0.016226764768362045,
0.034311529248952866,
0.0301862470805645,
-0.05860031396150589,
0.049455493688583374,
0.01577523536980152,
0.01312734093517065,
-0.050600338727235794,
-0.05653418228030205,
-4.464451871974214e-33,
0.08283618092536926,
0.03008829616010189,
0.047572989016771317,
-0.024625791236758232,
-0.01885136589407921,
0.053150199353694916,
0.033822543919086456,
0.1472053825855255,
-0.10626155138015747,
-0.10589109361171722,
0.09328202903270721,
0.04294897988438606,
-0.053753167390823364,
-0.1057845950126648,
-0.02082395926117897,
-0.03720441833138466,
0.045688170939683914,
-0.024716395884752274,
-0.032809365540742874,
0.055318184196949005,
0.056179434061050415,
-0.06734567135572433,
0.04406503960490227,
-0.058657873421907425,
-0.013486412353813648,
0.015082377009093761,
0.0910264253616333,
-0.004732342902570963,
-0.056283626705408096,
0.038336604833602905,
-0.06972583383321762,
0.022961478680372238,
-0.038118720054626465,
0.037558991461992264,
0.0717385858297348,
0.040160175412893295,
0.026438521221280098,
-0.016896912828087807,
-0.0760432705283165,
-0.015819434076547623,
0.007416880689561367,
0.12066271156072617,
-0.017780983820557594,
0.029597707092761993,
0.001855759066529572,
0.022483404725790024,
0.04520873725414276,
0.038031451404094696,
-0.013237512670457363,
-0.03409146890044212,
0.04186081141233444,
-0.03484397381544113,
0.03603332117199898,
0.10702716559171677,
0.009571127593517303,
0.08274137228727341,
0.021515557542443275,
-0.0026660594157874584,
-0.032807134091854095,
-0.03640025854110718,
0.016172463074326515,
-0.006295523606240749,
-0.030766304582357407,
-0.03500915318727493,
0.03982128947973251,
-0.051350343972444534,
-0.06695353984832764,
0.09427551180124283,
0.03939281031489372,
0.0505007803440094,
0.011470007710158825,
-0.0006603288347832859,
-0.08501262217760086,
-0.009334996342658997,
0.05699215084314346,
0.06288526952266693,
0.015052183531224728,
-0.12525232136249542,
0.029915476217865944,
-0.049646373838186264,
-0.0772685557603836,
-0.0024080085568130016,
0.018664391711354256,
-0.010157010518014431,
0.08245528489351273,
0.05945425480604172,
-0.0289184357970953,
-0.08243924379348755,
0.03136103227734566,
0.04544954001903534,
-0.05275295302271843,
-0.015579313039779663,
-0.00326974387280643,
0.01819191873073578,
0.0032494524493813515,
-6.288827592015878e-8,
0.036084044724702835,
0.0937998965382576,
-0.01938372477889061,
0.021722450852394104,
0.030207665637135506,
-0.007947910577058792,
-0.018233710899949074,
0.016957689076662064,
0.020952189341187477,
0.004471629858016968,
0.07757814228534698,
-0.012961553409695625,
0.006098971236497164,
-0.03391343727707863,
0.05464187636971474,
-0.033937979489564896,
-0.052671510726213455,
-0.06897354125976562,
-0.02095823548734188,
0.07458551973104477,
0.008629271760582924,
0.09843317419290543,
0.03999892994761467,
-0.08169494569301605,
0.028389040380716324,
0.07460334151983261,
-0.06316530704498291,
0.0666070356965065,
-0.03114326484501362,
-0.04951857030391693,
0.04547809436917305,
-0.035274993628263474,
0.01805839315056801,
0.03945954516530037,
0.01771603524684906,
-0.0206783264875412,
-0.13013245165348053,
0.005271658301353455,
0.04704371094703674,
0.07044929265975952,
0.0420168936252594,
-0.0025499870534986258,
-0.02307054027915001,
0.009500310756266117,
-0.052566587924957275,
0.0010032702703028917,
-0.0061219073832035065,
-0.0997881293296814,
-0.056673817336559296,
0.026144880801439285,
0.016641587018966675,
-0.02238364890217781,
-0.03221672400832176,
-0.06395557522773743,
-0.04718416556715965,
-0.08428562432527542,
-0.007615312933921814,
-0.017230134457349777,
-0.07857421040534973,
0.016300298273563385,
0.04110050946474075,
-0.059903163462877274,
-0.09752068668603897,
0.005392739549279213
] | 14,302 |
14,305 |
Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
|
C. Rojas-Bravo, K. Taggart, G. Dimitriadis, R. J. Foley (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. Targets were supplied by ZTF (both self-reported and as reported by ALeRCE). All observations were made on 2021 Jan 6 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) Blue spectrum, with an indication of a P-Cygni H-alpha component at -7,000 km/s. The long rise (~ 1 month) and the luminosity (M_g = -19 mag) indicates some interaction.
|
2021-01-07 07:11:00
|
optical,supernovae,transient
|
2021-01-07
|
07:11:00
| 674 |
[
-0.06833455711603165,
-0.070102259516716,
0.014808897860348225,
0.022927965968847275,
0.03429209068417549,
0.012741525657474995,
-0.01949859783053398,
0.02318360097706318,
0.004339991137385368,
0.01786261610686779,
0.0019808330107480288,
-0.07430032640695572,
0.02003435418009758,
-0.022299421951174736,
0.062687449157238,
-0.0316835418343544,
0.04418431594967842,
-0.09425465762615204,
0.01886463537812233,
0.022866273298859596,
-0.0027569809462875128,
0.04550841823220253,
-0.04422014206647873,
0.040360573679208755,
0.05245966464281082,
-0.021098515018820763,
-0.016471298411488533,
-0.02714988775551319,
0.005863771308213472,
0.018335256725549698,
-0.010487901978194714,
0.061831943690776825,
-0.02929438278079033,
0.05820018798112869,
0.06996487081050873,
-0.04688883572816849,
0.05864317715167999,
-0.06080999970436096,
0.029084036126732826,
-0.005300135817378759,
0.047234613448381424,
-0.065273217856884,
-0.012729242444038391,
-0.026910748332738876,
0.004297292325645685,
0.047463659197092056,
-0.005568683613091707,
-0.013951189815998077,
-0.1197836846113205,
-0.01049976609647274,
-0.02409750409424305,
0.028245653957128525,
0.02268725074827671,
0.054204657673835754,
0.06415299326181412,
0.0768769234418869,
-0.0503595806658268,
-0.11832291632890701,
0.12005668878555298,
-0.0555899478495121,
-0.007904456928372383,
-0.02517090179026127,
-0.04450949653983116,
-0.060749996453523636,
-0.005628835875540972,
0.03930767998099327,
-0.03876066952943802,
-0.09927556663751602,
0.11341452598571777,
-0.03853148594498634,
-0.04711257293820381,
0.015310621820390224,
0.047368019819259644,
-0.0185336135327816,
0.01269631925970316,
-0.01866830512881279,
0.12709175050258636,
0.026169151067733765,
-0.01363109890371561,
-0.1292087286710739,
0.08884086459875107,
-0.033778075128793716,
-0.05425309017300606,
0.005237930454313755,
0.02349225990474224,
-0.00890275090932846,
-0.025714445859193802,
0.09231598675251007,
-0.08491379767656326,
-0.0046901945024728775,
0.013685114681720734,
-0.029645854607224464,
-0.06193491443991661,
-0.0845334529876709,
-0.019207855686545372,
-0.015353676863014698,
0.02379174344241619,
-0.02415022999048233,
0.1237114667892456,
0.0595402754843235,
0.07146649062633514,
-0.027184560894966125,
-0.019008437171578407,
0.03567541763186455,
-0.05142078176140785,
0.01941990666091442,
0.05926716327667236,
0.01233753189444542,
0.02657073549926281,
-0.005805382505059242,
0.0956881046295166,
-0.031101621687412262,
-0.04124157875776291,
-0.12529824674129486,
-0.01902315579354763,
0.05866852030158043,
-0.06653618812561035,
0.09418746829032898,
-0.0679551362991333,
-0.029581956565380096,
0.03248438611626625,
0.03363914042711258,
0.015493626706302166,
0.02317056432366371,
0.04404522478580475,
0.009145409800112247,
-0.08752721548080444,
3.921381196075994e-33,
0.08604360371828079,
0.034308306872844696,
-0.059670042246580124,
0.011529924347996712,
0.00966887827962637,
0.029234400019049644,
-0.07125379890203476,
0.028446834534406662,
-0.010909061878919601,
-0.05135057494044304,
-0.018949061632156372,
0.042698781937360764,
-0.0010091228177770972,
-0.07897049933671951,
-0.05106831341981888,
0.03492225334048271,
0.005392097402364016,
0.023441072553396225,
-0.10453202575445175,
0.0536191463470459,
-0.0115054277703166,
0.02464255690574646,
-0.012611969374120235,
0.009050009772181511,
0.06802887469530106,
0.05341634899377823,
0.023073192685842514,
-0.008713220246136189,
-0.021144773811101913,
0.029733650386333466,
0.01838420331478119,
0.022387010976672173,
-0.030855214223265648,
-0.018451055511832237,
-0.004521660972386599,
-0.04602263495326042,
-0.030386220663785934,
-0.008400182239711285,
0.029016038402915,
-0.08814969658851624,
0.006159879267215729,
0.03905089199542999,
-0.0949244275689125,
0.03594621270895004,
-0.008640813641250134,
-0.027260594069957733,
-0.05685437098145485,
0.01094463374465704,
0.03830500692129135,
0.04244784265756607,
0.008798330090939999,
-0.1066170409321785,
-0.023351263254880905,
-0.01012873649597168,
-0.022123001515865326,
0.021676231175661087,
0.011059808544814587,
-0.01639336533844471,
0.031019918620586395,
0.0529019832611084,
0.08468891680240631,
-0.03643291816115379,
0.010401790961623192,
0.011556127108633518,
0.0023000366054475307,
0.042089417576789856,
-0.025792133063077927,
0.06174894794821739,
-0.026359325274825096,
0.03997720405459404,
-0.02580161765217781,
0.07506114989519119,
0.08033418655395508,
-0.053485386073589325,
0.055608902126550674,
-0.062118567526340485,
0.03382387012243271,
0.035597607493400574,
-0.05817234516143799,
0.08599971234798431,
-0.07175891101360321,
-0.05682841315865517,
0.02595433034002781,
-0.028089430183172226,
-0.08762694895267487,
-0.003601027186959982,
-0.04187516123056412,
0.003000932978466153,
0.010339017026126385,
-0.08027332276105881,
0.05877169221639633,
-0.029399268329143524,
0.021259579807519913,
-0.05986735224723816,
-0.11293654143810272,
-4.166598501207139e-33,
0.0626647099852562,
0.06933832168579102,
-0.048356905579566956,
0.08591358363628387,
-0.008932947181165218,
-0.004007812589406967,
0.07587119191884995,
0.12326553463935852,
-0.09988237917423248,
-0.05864037573337555,
0.05391429364681244,
0.044867757707834244,
-0.09922458976507187,
-0.08664369583129883,
-0.00979687925428152,
-0.02151237241923809,
0.009812653064727783,
-0.004964327439665794,
0.010601934976875782,
0.031173251569271088,
-0.0016705297166481614,
-0.0609295479953289,
-0.008320063352584839,
-0.05435744673013687,
0.018301870673894882,
0.08350159972906113,
0.04503168910741806,
0.013607135973870754,
-0.06536499410867691,
-0.011705412529408932,
-0.05979780852794647,
0.02232065238058567,
-0.03199166804552078,
-0.049285124987363815,
-0.004265660885721445,
0.04414212331175804,
-0.03552829474210739,
-0.03669234365224838,
-0.10996542125940323,
0.015010973438620567,
0.02485569752752781,
0.08879052102565765,
0.008980153128504753,
-0.010119394399225712,
-0.024836856871843338,
-0.020669322460889816,
0.0010411913972347975,
0.1024714857339859,
0.03732334449887276,
-0.06364050507545471,
0.0815066546201706,
0.011551490984857082,
0.007641385309398174,
-0.009942256845533848,
0.00008046779839787632,
0.07985473424196243,
0.019225571304559708,
0.10151849687099457,
0.034142788499593735,
0.05692083016037941,
-0.02493961527943611,
-0.006459197495132685,
0.03505021333694458,
0.04104014113545418,
0.048219431191682816,
-0.022339191287755966,
0.03346111252903938,
0.015827558934688568,
0.06425883620977402,
-0.0008254572167061269,
0.060037050396203995,
-0.003973938524723053,
-0.02369219809770584,
0.03376301750540733,
0.08358971029520035,
0.07527606189250946,
-0.03356233984231949,
-0.06380660086870193,
-0.0012443477753549814,
0.047368962317705154,
0.007331333588808775,
-0.032903920859098434,
0.037462443113327026,
0.08088011294603348,
0.036401912569999695,
0.0013628018787130713,
-0.03411690518260002,
-0.028791815042495728,
-0.0009270179434679449,
-0.08266215026378632,
-0.04199642688035965,
0.003374653635546565,
-0.02594088576734066,
0.011589080095291138,
0.059548065066337585,
-5.612373144003868e-8,
0.018837105482816696,
0.02274181880056858,
-0.061635687947273254,
0.029797596856951714,
0.015475643798708916,
-0.012764153070747852,
0.018797950819134712,
0.02114143781363964,
0.020725127309560776,
-0.031205402687191963,
0.04831220209598541,
-0.05758364126086235,
0.027655838057398796,
-0.04793746396899223,
0.05108245834708214,
-0.015160582959651947,
-0.055464740842580795,
-0.027567600831389427,
-0.05166912451386452,
0.07113298773765564,
0.015901746228337288,
0.0684882253408432,
0.030493099242448807,
-0.04556436464190483,
0.015292699448764324,
0.017856566235423088,
-0.048176657408475876,
0.1362786442041397,
0.03091365285217762,
-0.0468466654419899,
0.0742202177643776,
-0.04820171743631363,
-0.01091579720377922,
-0.00011810627620434389,
-0.047853365540504456,
-0.010701593942940235,
-0.15121044218540192,
0.049123577773571014,
0.0779452845454216,
0.06064721196889877,
-0.046774715185165405,
-0.016498658806085587,
-0.03758002072572708,
0.02117442525923252,
-0.11147628724575043,
-0.007751293480396271,
-0.04698653891682625,
-0.08044883608818054,
0.004033362492918968,
0.0660720020532608,
-0.06440341472625732,
0.023586390540003777,
-0.037594761699438095,
-0.07750367373228073,
-0.12044806033372879,
-0.026518352329730988,
0.028016144409775734,
-0.04267408326268196,
-0.06750467419624329,
-0.047728002071380615,
0.1133405864238739,
-0.04656856134533882,
-0.07045748084783554,
0.03239157423377037
] | 14,303 |
14,306 |
First observed interaction of the circumstellar envelope of an S-star with the environment of Sgr A*
|
Florian PeiÃker, Basel Ali, Michal Zajacek, Andreas Eckart, S. Elaheh Hosseini, Vladimir Karas, Yann Clenet, Nadeen B. Sabha, Lucas Labadie, Matthias Subroweit
|
Here we report the dynamic interaction of a circumstellar envelope of an S-star with the environment of Sgr A* or the IRS16 complex. The L'-band observations were carried out with COMIC/ADONIS+RASOIR (1999) and NACO (2002-2018). Around S50, we observe a spherical dust envelope (1999) that interacts with a possible wind that is created at the position of Sgr A* or IRS16 (2002-2018). The dusty component of the system is known as X7 and to date, it was believed that the nature of the system can be described as a bow shock. Whereas the description of the X7/S50 system follows a Wilkinoide shape until 2009, we observe an increasingly prominent detachment of the system after 2009. Based on the L'-band size of X7, the Br\gamma emission line maps (observed with SINFONI), and the derived close 3d distance between S33 and S50, we speculate that an almost destructive event took place in 2009. The possible interaction of the two S-stars resulted in a detachment of the gaseous and dusty shell from its host star. Whereas a tidal disruption event, that would lead to increased flaring activity of the supermassive black hole (SMBH) Sgr A*, can not be excluded, we observe an overall stable shell throughout the years (besides the prominent elongation). In 2018, the position angle with respect to Sgr A* does not coincide with the position of the SMBH anymore. Hence, a wind that is created at the position of Sgr A* may not be the only origin of the dynamic interaction with X7/S50. We consider, that the IRS16 could be responsible. In this scenario, the S-cluster can be described as a (gravitational) lens. This would be consistent with the mini-cavity footprint. However, we encourage galactic center groups with access to L'-band observations to witness the dynamical evolution of the X7/S50 system. If the elongation of X7 does continue to increase, it should be soon as half of the size of the S-cluster. The related paper is accepted by ApJ, a preprint is available at https://arxiv.org/abs/2101.02077
|
2021-01-07 16:51:00
|
black hole,pre-main-sequence star,star,tidal disruption event,young stellar object
|
2021-01-07
|
16:51:00
| 2,010 |
[
-0.11056896299123764,
0.005237617064267397,
0.05535191297531128,
0.011113658547401428,
0.08772901445627213,
-0.05085490271449089,
0.01386965624988079,
0.015086619183421135,
0.03149064630270004,
0.0054849898442626,
-0.0008429125300608575,
-0.015199918299913406,
0.0508631132543087,
-0.046622950583696365,
0.025239042937755585,
-0.030690647661685944,
-0.004775444511324167,
-0.07824932783842087,
-0.029437895864248276,
0.119716115295887,
-0.04445020481944084,
0.033531565219163895,
-0.11307059973478317,
0.0658278837800026,
0.07752396911382675,
-0.026351088657975197,
-0.04402352124452591,
-0.03052033856511116,
-0.03776397183537483,
-0.06223825737833977,
0.09286322444677353,
0.048069555312395096,
-0.040201716125011444,
0.0745353251695633,
0.014187756925821304,
-0.034228261560201645,
0.03899389132857323,
0.03171658143401146,
-0.025149289518594742,
-0.016641510650515556,
-0.03146130219101906,
-0.0692250207066536,
0.008411351591348648,
-0.08981466293334961,
-0.09120357781648636,
-0.012322640977799892,
-0.04378572478890419,
-0.04458305612206459,
-0.028796948492527008,
0.018954332917928696,
-0.023262443020939827,
0.008814332075417042,
0.0038506989367306232,
0.053746435791254044,
0.014573485590517521,
-0.0018724178662523627,
-0.039756085723638535,
-0.11377325654029846,
0.035968489944934845,
-0.1048274114727974,
0.008370942436158657,
-0.06898850947618484,
-0.016812751069664955,
-0.004342158790677786,
0.02850586175918579,
0.02761579304933548,
-0.004457951057702303,
-0.0009272882016375661,
0.049071986228227615,
-0.043969012796878815,
-0.013247192837297916,
0.03641974553465843,
-0.13533630967140198,
0.029429174959659576,
0.03675849363207817,
0.04120649769902229,
0.04849226027727127,
0.009509583003818989,
0.03926366567611694,
-0.043654803186655045,
0.02245277538895607,
0.07419440895318985,
-0.01765093393623829,
0.062418121844530106,
-0.05069861188530922,
0.009141365997493267,
-0.017222337424755096,
0.014299392700195312,
0.0012523768236860633,
0.034259192645549774,
-0.012495137751102448,
-0.015040582045912743,
-0.03985787555575371,
-0.04736872389912605,
0.041488420218229294,
0.028817012906074524,
0.0798037126660347,
-0.058497074991464615,
0.08637810498476028,
0.0695609375834465,
0.03285304456949234,
-0.005941380746662617,
-0.0057576727122068405,
-0.0037132054567337036,
-0.01568461023271084,
0.024506155401468277,
-0.03127682954072952,
-0.06994058936834335,
-0.06059553846716881,
-0.008990336209535599,
0.037326373159885406,
0.015950309112668037,
0.0004240396083332598,
-0.08829537779092789,
0.019825875759124756,
-0.004697121679782867,
0.0009192797588184476,
0.06592053920030594,
-0.0826767161488533,
-0.0022000428289175034,
0.04106874391436577,
0.012148498557507992,
-0.01562146469950676,
0.060290202498435974,
0.06502854079008102,
0.0070922705344855785,
-0.04996147006750107,
2.4697264880470882e-33,
-0.008701259270310402,
0.0659792348742485,
-0.008684876374900341,
0.051519978791475296,
-0.02996961399912834,
-0.05963080748915672,
-0.03547258302569389,
0.09298618137836456,
-0.0045896959491074085,
0.021923599764704704,
-0.14778098464012146,
0.009540790691971779,
0.0385797843337059,
-0.0598883256316185,
-0.009977414272725582,
-0.006268667057156563,
0.025826171040534973,
-0.09467411041259766,
-0.07318810373544693,
-0.010525466874241829,
-0.1179707869887352,
0.0301348939538002,
-0.024730686098337173,
-0.05890381708741188,
0.011769521981477737,
0.07740162312984467,
0.05440961569547653,
-0.03763498365879059,
-0.034653253853321075,
0.03861669450998306,
0.05207648500800133,
0.06457328051328659,
0.03728531301021576,
0.09532789140939713,
-0.018921753391623497,
0.06104036048054695,
-0.050340574234724045,
-0.045851930975914,
0.016687331721186638,
-0.023686019703745842,
0.048941005021333694,
0.016203923150897026,
-0.11539903283119202,
0.03989787399768829,
0.016933882609009743,
-0.016965439543128014,
0.016637714579701424,
0.00815325602889061,
0.05512556433677673,
-0.027565550059080124,
0.0688314288854599,
0.04103735461831093,
-0.054463598877191544,
-0.004367455840110779,
0.04331197962164879,
0.048523034900426865,
0.022432249039411545,
-0.09609079360961914,
-0.04770655930042267,
0.02552654594182968,
0.08436737954616547,
0.007982458919286728,
0.014493693597614765,
0.01384404394775629,
0.04047674685716629,
0.06599289178848267,
-0.029877174645662308,
0.028201930224895477,
-0.09056829661130905,
-0.019489336758852005,
-0.041817184537649155,
0.002516126725822687,
0.12565197050571442,
0.020731905475258827,
0.03373115137219429,
-0.016153959557414055,
0.014434754848480225,
0.01905849203467369,
0.05081407353281975,
0.06586860865354538,
-0.07751607894897461,
-0.025431815534830093,
-0.00382973812520504,
-0.08191065490245819,
-0.09175348281860352,
-0.08665867894887924,
-0.0051543074660003185,
0.003259357763454318,
-0.04005284234881401,
-0.041505929082632065,
0.06910844147205353,
-0.023386582732200623,
0.05049917474389076,
0.05723700299859047,
-0.113896444439888,
-5.224942717684493e-33,
-0.0061082965694367886,
0.014310276135802269,
-0.05164976418018341,
0.0209618229418993,
0.014060243032872677,
0.10579748451709747,
0.012697573751211166,
0.06546561419963837,
-0.1125800758600235,
0.012627665884792805,
0.056378982961177826,
0.03209060803055763,
-0.06064993143081665,
-0.01025133952498436,
0.12621884047985077,
-0.024497132748365402,
0.052310120314359665,
0.023412086069583893,
-0.10353696346282959,
-0.029697095975279808,
0.029468592256307602,
0.017363956198096275,
0.001486845314502716,
-0.03219571337103844,
-0.035526953637599945,
-0.022052057087421417,
0.04826489835977554,
-0.019903428852558136,
-0.011746981181204319,
0.05479501560330391,
-0.021132536232471466,
-0.042392298579216,
0.04073838144540787,
0.026945902034640312,
0.00979758333414793,
-0.020272428169846535,
0.013855420984327793,
-0.019550355151295662,
-0.0724419429898262,
-0.11266040802001953,
-0.06260966509580612,
0.060608506202697754,
0.04510537534952164,
0.04722662270069122,
0.06070040166378021,
-0.02517552673816681,
0.009815438650548458,
0.04109543561935425,
0.025184107944369316,
-0.018217487260699272,
0.03779645636677742,
-0.013353539630770683,
-0.014111286029219627,
0.08658252656459808,
-0.005050455220043659,
0.12696483731269836,
-0.006515533663332462,
0.007637470029294491,
0.008522908203303814,
-0.052618514746427536,
-0.03529679402709007,
-0.040078017860651016,
0.010889388620853424,
-0.020471597090363503,
0.04082754999399185,
-0.09448068588972092,
-0.03664811700582504,
-0.024449946358799934,
-0.03855539858341217,
-0.01098593045026064,
0.04278873652219772,
-0.08452975004911423,
-0.04046763479709625,
-0.019008105620741844,
0.07245242595672607,
0.04923408105969429,
0.010600302368402481,
-0.08290954679250717,
-0.04337717965245247,
-0.05841202661395073,
-0.11000453680753708,
0.04263577237725258,
0.03588419780135155,
-0.04880249872803688,
0.036683760583400726,
0.005193016957491636,
-0.06210516765713692,
-0.08252592384815216,
0.03206240385770798,
-0.0016739009879529476,
-0.0011298948666080832,
0.018314599990844727,
-0.004099829122424126,
0.02650720253586769,
0.10950522869825363,
-6.116400186328974e-8,
0.04293407127261162,
0.04465541988611221,
-0.026664836332201958,
0.04313461855053902,
0.005089843180030584,
0.021388236433267593,
0.06708294153213501,
0.024051597341895103,
-0.004006475210189819,
0.024468272924423218,
0.04199204221367836,
0.006741166114807129,
0.020750615745782852,
-0.09520680457353592,
0.03491095080971718,
-0.05535143241286278,
-0.03360236436128616,
-0.004301618784666061,
-0.07330641150474548,
0.06436432898044586,
0.09676239639520645,
-0.013713008724153042,
0.037114012986421585,
-0.01069387886673212,
-0.0339067317545414,
-0.0484902486205101,
-0.005847160704433918,
0.07437700033187866,
-0.02317344769835472,
-0.054067548364400864,
-0.08325254172086716,
0.021245194599032402,
-0.04114066809415817,
-0.06372076272964478,
-0.12146423012018204,
0.060510002076625824,
-0.021517472341656685,
-0.012645664624869823,
0.14255394041538239,
0.07356438785791397,
0.02856922335922718,
-0.010046030394732952,
-0.02623295783996582,
-0.008474479429423809,
0.006365918088704348,
0.08216629922389984,
-0.03349766507744789,
-0.13149842619895935,
-0.024093830958008766,
0.06969419121742249,
-0.018598604947328568,
0.04850802943110466,
0.01979760453104973,
0.009865100495517254,
-0.013419846072793007,
-0.00333859003148973,
-0.07282157242298126,
0.014779512770473957,
0.038811612874269485,
-0.024990612640976906,
0.0581618994474411,
-0.041238944977521896,
-0.08357074856758118,
-0.011353539302945137
] | 14,304 |
14,307 |
INTEGRAL simultaneous upper limits on the Fermi-LAT Galactic plane transient
|
V. Sguera (INAF-OAS Bologna, Italy), A. Bazzano, M. Fiocchi, L. Natalucci, P. Ubertini (INAF-IAPS Roma, Italy), A. J. Bird, V. A. Lepingwell (Univ. of Southampton, UK)
|
The field region of the Fermi-LAT transient, recently detected on the Galactic plane (ATel #14299) at coordinates R.A.=23.02 deg, Dec=59.39 deg (J2000), has been covered by simultaneous INTEGRAL Galactic Plane Scans (GPS) observations from 30 Dec 2020 02:15 (UTC) to 1 Jan 2021 06:15 (UTC) for a total on-source time of about 12 ks. No source was significantly detected by IBIS/ISGRI inside the Fermi-LAT error circle, we inferred 2-sigma upper limits of 3 mCrab (2.7 x 10-11 erg cm-2 s-1) and 7.7 mCrab (3.8 x 10-11 erg cm-2 s-1) in the energy bands 25-60 and 60-100 keV, respectively.
|
2021-01-07 22:33:00
|
x-ray,gamma ray,transient
|
2021-01-07
|
22:33:00
| 586 |
[
-0.075160451233387,
-0.025934234261512756,
0.026669761165976524,
0.05495069548487663,
0.030892573297023773,
-0.04646335169672966,
-0.012838536873459816,
0.05102017521858215,
0.053710583597421646,
-0.07247547805309296,
-0.013790726661682129,
-0.03364778682589531,
-0.043648675084114075,
-0.01473240926861763,
0.008816704154014587,
-0.08924204856157303,
0.032924629747867584,
-0.0686706081032753,
0.02407911792397499,
0.015394412912428379,
-0.04426960274577141,
0.08573517203330994,
-0.027373237535357475,
0.09087633341550827,
0.0518721379339695,
-0.0844431146979332,
-0.016732236370444298,
-0.03213749825954437,
-0.05539025738835335,
-0.04786541685461998,
0.014222578145563602,
0.1176186129450798,
-0.041876599192619324,
0.018507538363337517,
0.051289476454257965,
-0.053889743983745575,
0.06330687552690506,
-0.057995397597551346,
0.1052996814250946,
-0.04561707004904747,
0.026990370824933052,
-0.03576534986495972,
0.04116073623299599,
0.044586509466171265,
-0.03221753612160683,
-0.05787992477416992,
0.025649605318903923,
0.017168143764138222,
-0.04482679069042206,
0.01160762645304203,
0.023885145783424377,
0.07086659967899323,
0.02655392698943615,
0.049578290432691574,
-0.01762859709560871,
0.019663063809275627,
0.01615873910486698,
-0.09012886881828308,
0.040446795523166656,
0.006523418240249157,
-0.002450282219797373,
0.0026214937679469585,
-0.061121564358472824,
0.004400560632348061,
-0.029762867838144302,
0.006970830261707306,
-0.06364526599645615,
-0.06472843140363693,
0.05732967332005501,
0.011681081727147102,
0.0036556345876306295,
-0.005179151892662048,
-0.040771838277578354,
-0.044378552585840225,
0.1180415078997612,
0.036771029233932495,
0.0919421836733818,
0.036221060901880264,
0.07936561107635498,
-0.09543552994728088,
0.009037467651069164,
-0.016814131289720535,
0.00018488286877982318,
-0.03630272299051285,
-0.004854575730860233,
-0.06342674046754837,
-0.060285087674856186,
0.11500318348407745,
0.03473152220249176,
-0.027748284861445427,
0.09131778031587601,
0.014150886796414852,
-0.07468768209218979,
0.028320007026195526,
0.045638974756002426,
0.02396181784570217,
0.0072982111014425755,
-0.002586261136457324,
0.040211815387010574,
0.013007092289626598,
0.012594951316714287,
-0.005195251200348139,
-0.002147688064724207,
0.12578299641609192,
0.016101408749818802,
0.02741263434290886,
0.11116240918636322,
0.023712491616606712,
-0.028450755402445793,
-0.03592820093035698,
0.007346877362579107,
-0.02003847248852253,
0.007660125847905874,
-0.06825266778469086,
-0.037055086344480515,
0.013200301676988602,
-0.014096043072640896,
0.08783520758152008,
-0.07368037849664688,
-0.051958076655864716,
-0.07855942845344543,
0.02421082742512226,
0.011591673828661442,
-0.007993786595761776,
0.01741248555481434,
0.07105656713247299,
-0.04841384291648865,
6.0665041026931235e-33,
0.06789913773536682,
0.006518248468637466,
-0.00332457828335464,
-0.02565552480518818,
-0.0668298602104187,
0.08660730719566345,
-0.12007796764373779,
-0.013840815052390099,
0.005009904503822327,
-0.017249183729290962,
-0.11195623874664307,
-0.02486184425652027,
0.014661004766821861,
-0.03346608951687813,
0.02477388270199299,
0.0038402641657739878,
0.05684474855661392,
0.008388256654143333,
-0.016424257308244705,
0.0009899864671751857,
0.03367495536804199,
0.02127634547650814,
-0.06069643422961235,
-0.0849795714020729,
0.11124256998300552,
0.0694495439529419,
0.0072225723415613174,
0.016725609079003334,
-0.05630592256784439,
0.054979946464300156,
-0.012590405531227589,
0.054509487003088,
-0.0561162568628788,
-0.014149121940135956,
-0.001962922979146242,
-0.047908276319503784,
0.020273230969905853,
0.0013620465761050582,
-0.0008621584856882691,
-0.0540270172059536,
0.04317818582057953,
0.08931936323642731,
-0.008566628210246563,
-0.0013838893501088023,
0.04657760635018349,
-0.041480835527181625,
-0.013431366533041,
0.032800622284412384,
0.10368797928094864,
0.11066224426031113,
-0.017495188862085342,
-0.018170621246099472,
-0.06997625529766083,
-0.0061310576274991035,
0.04308691993355751,
0.10335614532232285,
0.04365843906998634,
0.03160737082362175,
0.024220185354351997,
0.06101485341787338,
0.06957364827394485,
0.017348479479551315,
0.0554080493748188,
-0.03285105153918266,
0.050191476941108704,
0.06600309163331985,
-0.00024415372172370553,
0.015101544559001923,
-0.021128620952367783,
0.046479981392621994,
-0.023344051092863083,
0.016608232632279396,
0.11226946860551834,
-0.021831385791301727,
0.008776724338531494,
-0.0708986222743988,
0.003301347140222788,
0.04456380754709244,
0.005446453578770161,
0.034050505608320236,
-0.07329163700342178,
-0.13041917979717255,
0.026361815631389618,
0.0014920835383236408,
-0.004230753518640995,
-0.0008514585206285119,
-0.04555307328701019,
0.051292214542627335,
-0.0006801072740927339,
-0.05735024809837341,
0.01832769252359867,
0.03697197139263153,
-0.016955610364675522,
0.011370351538062096,
-0.1401437669992447,
-6.031831060105697e-33,
0.03361404314637184,
0.010696575045585632,
0.0161126758903265,
0.006630918011069298,
-0.08748359978199005,
-0.034811731427907944,
-0.0030466155149042606,
0.10163739323616028,
-0.02802630513906479,
0.018916703760623932,
-0.018324268981814384,
0.06509755551815033,
-0.046156976372003555,
-0.1264115422964096,
0.013617577031254768,
-0.023133480921387672,
0.05295697599649429,
-0.002123655052855611,
0.004977944772690535,
-0.004085182677954435,
0.01026012934744358,
-0.07571939378976822,
0.016669075936079025,
-0.029803093522787094,
-0.036573249846696854,
0.03536638617515564,
0.03871125727891922,
0.007706048432737589,
-0.08450447767972946,
-0.01241723820567131,
-0.03257007896900177,
0.037120651453733444,
-0.005230885464698076,
-0.043286144733428955,
0.026472842320799828,
0.0392201729118824,
0.05419967323541641,
-0.01992202177643776,
-0.06898763030767441,
-0.03647917881608009,
-0.02951914258301258,
0.18158404529094696,
-0.01704290881752968,
-0.0007567134452983737,
0.0514071062207222,
0.015593795105814934,
0.019389281049370766,
0.07082775235176086,
-0.05763250216841698,
0.030012084171175957,
-0.033702101558446884,
-0.06870382279157639,
0.020595893263816833,
0.0719248503446579,
-0.020297618582844734,
0.03813368082046509,
0.0473468154668808,
0.01383610162883997,
-0.037826284766197205,
-0.03796770051121712,
0.05793607980012894,
0.0046128686517477036,
0.020044200122356415,
-0.07050041854381561,
0.034510329365730286,
-0.06355645507574081,
0.014821687713265419,
0.06754909455776215,
0.0745006576180458,
0.040018230676651,
0.07064376771450043,
-0.0028015500865876675,
-0.1487247198820114,
-0.021530697122216225,
0.014783777296543121,
0.09176814556121826,
0.0006326337461359799,
-0.0871083065867424,
0.02152714878320694,
-0.03968903422355652,
-0.04254468157887459,
-0.016972558572888374,
0.01321948878467083,
0.003469836199656129,
0.04486186429858208,
0.014760192483663559,
-0.0636645033955574,
-0.06022615730762482,
0.0714859664440155,
-0.016199516132473946,
-0.06297385692596436,
-0.0021081052254885435,
-0.045761678367853165,
0.0582650788128376,
-0.028100978583097458,
-6.54962093449285e-8,
0.0044730352237820625,
0.07011581212282181,
-0.04139294475317001,
0.027437368407845497,
0.011166642419993877,
-0.08273493498563766,
-0.06354352086782455,
-0.002804521704092622,
0.033679891377687454,
0.006473960354924202,
0.04971984028816223,
-0.02709287405014038,
-0.007275090552866459,
-0.09577701985836029,
0.04637834057211876,
-0.005775116849690676,
-0.030025122687220573,
-0.07365051656961441,
-0.04726215824484825,
0.049514975398778915,
0.078402079641819,
0.07105658203363419,
0.019300444051623344,
-0.04609620198607445,
0.07099738717079163,
0.0071836840361356735,
-0.04264339059591293,
0.0700729563832283,
-0.0117785120382905,
-0.03377609699964523,
-0.025056103244423866,
-0.02736971527338028,
0.02111341990530491,
-0.014616429805755615,
-0.07630445808172226,
-0.0030992410611361265,
-0.04911837354302406,
0.002678359393030405,
0.059816569089889526,
0.08390343934297562,
-0.02706453949213028,
-0.06731070578098297,
0.010903304442763329,
-0.01682165637612343,
-0.06788082420825958,
0.00044568913290277123,
-0.021243026480078697,
-0.057024355977773666,
-0.011970257386565208,
-0.051329001784324646,
-0.07104511559009552,
-0.004278099630028009,
-0.05228882282972336,
-0.01446923241019249,
-0.08108048141002655,
0.0050103385001420975,
-0.05347739905118942,
-0.01766156032681465,
0.058374907821416855,
-0.023866064846515656,
0.0010921760695055127,
-0.07714901864528656,
-0.180413618683815,
-0.011563116684556007
] | 14,305 |
14,308 |
Swift/MAXI follow-up of recent outburst from X-ray pulsar 2S 1553-542
|
Manoj Mandal (MCC), Sabyasachi Pal (MCC/ICSP) and Mangal Hazra (MCC)
|
The X-ray pulsar 2S 1553-542 was discovered using the rotation modulation collimator onboard Small Astronomy Satellite 3 in 1975 (Apparao et al., 1978, Nature, 271, 225). During the outburst of 2008, the pulsar was detected with a spin period of ~9.28 s with a single peak sinusoidal type pulse profile (ATEL #1373, Pahari & Pal 2012, MNRAS, 423, 3352).
Recently, an outburst is reported from the X-ray pulsar in hard X-ray band, after a long time (the last outburst detected by Fermi/GBM was in February 2014) using Fermi/GBM (ATEL #14301). The outburst started on 21st December 2020. The flux reached a maximum value of 0.06±0.01 Crab (15-50 keV) on MJD 59213 as detected by Swift/BAT. There is no available data points from SWIFT/BAT after MJD 59214. The flare was also detected by MAXI/GSC (2-20 keV), with a maximum flux of 0.024±0.004 Crab on 6th January 2021 (MJD 59220.5).
A follow-up observation was done by Swift/XRT on 7th January 2021 (MJD 59221.289). From the preliminary timing analysis, using the barycenter and background corrected light curve, we found the spin period of the X-ray pulsar is ~9.30±0.01 s. The pulse profile is nearly sinusoidal with single peak nature, which is more or less similar type to the previous outburst (Pahari & Pal, 2012, MNRAS, 423, 3352). The energy spectrum (2-8 keV) of 2S 1553-542 is well fitted with the model phabs×(powerlaw+bbody). The fitted photon index is 7.9±1.3 and kT is 1.5±0.1 with flux 1.55 × 10-8 ergs/cm2/s.
Further observations in all wavelengths are encouraged.
This research has made use of MAXI data provided by RIKEN, JAXA and the MAXI team.
|
2021-01-09 04:39:00
|
x-ray,neutron star,pulsar,star,transient
|
2021-01-09
|
04:39:00
| 1,615 |
[
-0.11811377853155136,
-0.03772599995136261,
-0.06422384083271027,
0.0035913134925067425,
0.003911248873919249,
-0.062020860612392426,
-0.023510079830884933,
0.01569945365190506,
-0.03678539767861366,
-0.020883474498987198,
0.021611087024211884,
-0.024381600320339203,
0.054838404059410095,
-0.017609354108572006,
0.004397524055093527,
0.003956173546612263,
-0.052188772708177567,
-0.11558589339256287,
0.09231026470661163,
0.02218262106180191,
-0.0010491296416148543,
0.061679594218730927,
-0.14686641097068787,
0.023747717961668968,
-0.027171695604920387,
0.048368193209171295,
-0.022183991968631744,
-0.1303931623697281,
0.0030180152971297503,
-0.09230851382017136,
0.028061436489224434,
0.04412899538874626,
-0.03371187672019005,
0.021800652146339417,
0.04275704175233841,
0.0337064154446125,
0.0035354860592633486,
-0.006497012916952372,
-0.024904238060116768,
-0.02874099090695381,
-0.04308110475540161,
-0.040074076503515244,
0.014963400550186634,
-0.006331074982881546,
-0.035636693239212036,
0.019370468333363533,
0.07475870102643967,
-0.07130728662014008,
-0.010158857330679893,
-0.0026549282483756542,
0.013540630228817463,
0.015299206599593163,
0.05688275769352913,
-0.016831282526254654,
0.06918327510356903,
-0.11879023164510727,
-0.06539266556501389,
-0.06752964109182358,
0.05581565573811531,
-0.059760451316833496,
-0.004787313751876354,
0.04067055881023407,
-0.01093811634927988,
-0.008459732867777348,
0.007195597048848867,
-0.05786612629890442,
0.037680063396692276,
-0.0364614836871624,
0.05657140165567398,
0.07231292873620987,
0.09131693840026855,
0.04527663812041283,
-0.01912563480436802,
-0.08461472392082214,
-0.019421735778450966,
0.007920940406620502,
0.07461420446634293,
-0.04861174523830414,
0.05057300999760628,
-0.044776007533073425,
-0.025943269953131676,
0.0020446672569960356,
-0.0022016626317054033,
-0.0074265762232244015,
-0.010940435342490673,
0.06451405584812164,
-0.06187254562973976,
0.06481653451919556,
-0.03416011855006218,
0.10058680921792984,
0.09860210865736008,
0.028233304619789124,
0.002901380881667137,
0.0633537545800209,
0.05960942059755325,
0.008394836448132992,
0.03128746896982193,
0.004693838767707348,
0.058257147669792175,
-0.019916826859116554,
0.010399064980447292,
-0.024364611133933067,
-0.06503447145223618,
0.04428164288401604,
-0.018040195107460022,
-0.06941056996583939,
0.03658812493085861,
0.0546376034617424,
-0.021524703130126,
0.014500250108540058,
-0.03811931982636452,
0.0665491595864296,
-0.03352432698011398,
-0.06397394090890884,
0.04332472383975983,
-0.004432636313140392,
0.009448830969631672,
-0.006149055436253548,
-0.048483286052942276,
-0.039370033890008926,
-0.03173845633864403,
0.019849002361297607,
-0.07103358954191208,
0.05232030898332596,
-0.0076071880757808685,
-0.012420250102877617,
-0.06402161717414856,
5.2956428254146994e-33,
-0.006094625685364008,
0.04673904553055763,
0.000021460411517182365,
-0.04836158826947212,
-0.07499313354492188,
-0.01572583243250847,
-0.01074740756303072,
0.005692461039870977,
0.05232221633195877,
0.049912020564079285,
-0.05353277549147606,
0.04938554763793945,
-0.0017478676745668054,
-0.08882056921720505,
-0.021548574790358543,
-0.10686031728982925,
0.014631378464400768,
0.03049861639738083,
-0.1147877499461174,
-0.026256060227751732,
-0.030232319608330727,
-0.021776825189590454,
-0.0833490714430809,
-0.02029191330075264,
-0.0019653995987027884,
0.09725667536258698,
0.061488550156354904,
-0.03890026733279228,
-0.023841766640543938,
0.03738477826118469,
-0.01819351501762867,
-0.03709131106734276,
0.021411273628473282,
0.05910757929086685,
0.011041209101676941,
-0.024959001690149307,
-0.041924308985471725,
0.02483089081943035,
-0.08348294347524643,
0.0013225293951109052,
0.0894942507147789,
-0.032518595457077026,
-0.15015177428722382,
0.044249262660741806,
0.05502256006002426,
0.007578322198241949,
-0.04538559541106224,
0.05590013787150383,
0.002142844721674919,
-0.0403984896838665,
0.0016021410701796412,
0.04480433836579323,
-0.03060450777411461,
0.009529447183012962,
0.10990941524505615,
0.08276849240064621,
0.0736897736787796,
-0.04563815891742706,
0.011132271029055119,
0.057768065482378006,
0.021125832572579384,
-0.01316913403570652,
0.04420575872063637,
0.009361173026263714,
-0.00325786042958498,
-0.003525360021740198,
-0.009183444082736969,
-0.01659737154841423,
-0.030819527804851532,
0.07466638833284378,
-0.050500448793172836,
0.047903772443532944,
0.029247134923934937,
-0.07849588245153427,
0.10639820247888565,
-0.07857821136713028,
-0.0292059276252985,
0.08691251277923584,
-0.021560411900281906,
0.07516377419233322,
-0.04793247953057289,
-0.10097656399011612,
0.08556608110666275,
-0.04636191576719284,
-0.06239071860909462,
0.06015819311141968,
0.04039311036467552,
0.03450150787830353,
-0.002144936705008149,
0.08277980238199234,
0.02115320973098278,
-0.05383909493684769,
0.03892957791686058,
-0.010577164590358734,
-0.055683452636003494,
-5.516003200471753e-33,
-0.06445001065731049,
-0.021591268479824066,
0.029395118355751038,
0.018160725012421608,
-0.032606303691864014,
0.024691415950655937,
0.014296796172857285,
0.13019059598445892,
-0.04387958347797394,
-0.05054491013288498,
0.030616668984293938,
0.05867665633559227,
-0.040018439292907715,
-0.03449932485818863,
0.014174778945744038,
0.046489350497722626,
0.02211056649684906,
0.005264808889478445,
-0.06047450378537178,
0.027037668973207474,
-0.002539803273975849,
0.0053511857986450195,
0.06269126385450363,
-0.019620409235358238,
-0.01624290831387043,
0.060167647898197174,
0.058520570397377014,
0.03349672630429268,
0.048185717314481735,
0.017175760120153427,
0.03156672790646553,
-0.009406469762325287,
0.024825556203722954,
0.06602238863706589,
-0.023173382505774498,
-0.045419204980134964,
0.006516397465020418,
0.06297169625759125,
-0.040064215660095215,
-0.05096118524670601,
-0.005800807382911444,
0.15761779248714447,
-0.0004953677416779101,
0.08951403945684433,
-0.040477849543094635,
0.09304580837488174,
0.057719480246305466,
0.054820459336042404,
0.05290541052818298,
-0.0445738285779953,
-0.008033590391278267,
-0.0420355387032032,
0.03673745319247246,
0.06514150649309158,
0.0045394496992230415,
0.004668154288083315,
-0.025041384622454643,
-0.03532201051712036,
0.023450976237654686,
-0.02602470852434635,
-0.00002863639747374691,
-0.0626654326915741,
-0.02306530997157097,
-0.03640906140208244,
0.07827957719564438,
-0.11962702125310898,
0.02392595447599888,
0.010797233320772648,
0.005933014210313559,
0.03964730352163315,
0.017716694623231888,
-0.06122838705778122,
-0.07111657410860062,
0.011150372214615345,
0.00566317792981863,
0.050097379833459854,
-0.02914462238550186,
-0.08611210435628891,
0.047099243849515915,
-0.06557369232177734,
-0.07124139368534088,
0.06549113243818283,
0.019401734694838524,
-0.043856870383024216,
0.05318369343876839,
0.03129442036151886,
-0.0034525080118328333,
0.002590840682387352,
0.02347632311284542,
-0.05061662942171097,
-0.050960469990968704,
0.033944983035326004,
-0.042564280331134796,
-0.005633702501654625,
0.04631686210632324,
-5.022134530463518e-8,
-0.038409411907196045,
-0.008194542489945889,
-0.05980408564209938,
0.015541816130280495,
0.07628758996725082,
-0.000660977850202471,
-0.05935881286859512,
0.0029608916956931353,
0.07753798365592957,
-0.005567300599068403,
-0.006327156908810139,
-0.022459333762526512,
0.08998827636241913,
-0.05524624511599541,
0.009782282635569572,
-0.055589575320482254,
0.057616494596004486,
-0.05842374637722969,
0.026476452127099037,
-0.047547437250614166,
-0.006323325447738171,
0.0048027788288891315,
0.05274418368935585,
-0.02788362093269825,
-0.025804167613387108,
0.09879454225301743,
0.02363353781402111,
0.020409509539604187,
0.044416896998882294,
-0.05675783008337021,
-0.08891861140727997,
0.006337765604257584,
-0.01086125336587429,
-0.03126510605216026,
-0.0023466928396373987,
0.12835919857025146,
-0.02750488370656967,
-0.0017478861846029758,
0.09180310368537903,
0.056182682514190674,
-0.008944990113377571,
-0.017394794151186943,
0.062293246388435364,
0.046306952834129333,
-0.12624244391918182,
0.00498628756031394,
-0.040587928146123886,
-0.06166676804423332,
0.00751104298979044,
-0.06850336492061615,
-0.007239090278744698,
-0.0011139072012156248,
0.03358953446149826,
-0.10019970685243607,
-0.03510243818163872,
0.06118626520037651,
-0.05069191753864288,
-0.046719904989004135,
-0.0007608468295074999,
-0.0015032347291707993,
0.0938122496008873,
-0.04275999218225479,
-0.13262732326984406,
0.05019183084368706
] | 14,306 |
14,309 |
Spectroscopic and photometric confirmation of TCP J09370380+1657350 as a WZ Sge-type dwarf nova
|
Keisuke Isogai (Kyoto University), Hiroyuki Maehara (National Astronomical Observatory of Japan), Naoto Kojiguchi, Taichi Kato (Kyoto University), Seiichiro Kiyota, Hiroshi Itoh (VSOLJ), Tamas Tordai (VSNET)
|
We report on spectral features seen in the transient TCP J09370380+1657350 on 2021-01-08.878 UT obtained by using a fiber-fed integral field spectrograph (KOOLS-IFU; Matsubayashi et al. 2019) attached to one of the Nasmyth focuses of the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University. In short, we conclude that this object is a WZ Sge-type dwarf nova. According to CBAT, the outburst of TCP J09370380+1657350 was discovered at 14.5 mag on 2021-01-07.7850 UT by Yuji Nakamura. As already reported to vsnet-alert 25211, the previous outburst was detected in 2006 by CRTS (Drake et al. 2009). Judging from the outburst amplitude and profile, this object is likely to be a WZ Sge-type dwarf nova. We secured an optical spectrum on 2021-01-08.878 UT by using KOOLS-IFU. The spectrum shows a blue continuum with Hα emission and possible Hβ absorption lines. These features suggest that this object is a dwarf nova in outburst. We also obtained time-series photometry via VSNET. The object has clearly shown typical early superhumps. The estimated period is 0.0619(1) d (vsnet-alert 25216, 25217). From our spectrum and photometry, we conclude that this object is a new WZ Sge-type dwarf nova. Since the estimated period implies that this object could show multiple rebrightenings, continuous time-series photometry is important.
|
2021-01-09 20:14:00
|
optical,cataclysmic variable,nova,transient,variables
|
2021-01-09
|
20:14:00
| 1,343 |
[
-0.10994553565979004,
0.01557519193738699,
0.06428183615207672,
0.0579695887863636,
0.02647094428539276,
-0.07101607322692871,
-0.041318006813526154,
0.03495608642697334,
-0.014417523518204689,
-0.017548218369483948,
-0.02878199703991413,
-0.04774133861064911,
-0.01787319779396057,
-0.002148990286514163,
0.036171555519104004,
-0.045861776918172836,
0.0652431920170784,
-0.08651861548423767,
0.014335178770124912,
0.011246959678828716,
-0.0355791337788105,
0.10579147189855576,
-0.05773372948169708,
-0.003802643623203039,
0.09227143228054047,
-0.00011772524885600433,
-0.012404639273881912,
0.00808969046920538,
0.03519386053085327,
-0.0061562275514006615,
-0.006238287314772606,
0.049403540790081024,
-0.10538661479949951,
0.05634358897805214,
0.037720683962106705,
-0.005205170251429081,
0.03611000254750252,
-0.05607995763421059,
-0.018282398581504822,
0.009041359648108482,
0.03439358249306679,
-0.03929458558559418,
-0.01766212470829487,
-0.031178301200270653,
-0.014495912939310074,
-0.05329485610127449,
-0.005478737410157919,
-0.07233528047800064,
-0.045548852533102036,
-0.03108743019402027,
-0.03332899883389473,
-0.028198838233947754,
0.0607297383248806,
0.07012534886598587,
0.06949536502361298,
-0.057516369968652725,
-0.021777695044875145,
-0.06593713164329529,
0.08972262591123581,
0.021664315834641457,
0.01949109323322773,
-0.036875925958156586,
-0.007055110298097134,
-0.07176114618778229,
0.0953400731086731,
0.03288751840591431,
-0.016090624034404755,
-0.038318321108818054,
0.09995719790458679,
-0.03456651791930199,
0.015729593113064766,
0.03247305750846863,
-0.08126579970121384,
0.02259800210595131,
-0.010419106110930443,
0.07656127214431763,
0.0798565149307251,
0.015961337834596634,
0.06908147037029266,
-0.03760755807161331,
0.029581479728221893,
0.012642018496990204,
-0.012653350830078125,
-0.07072167098522186,
-0.004356629680842161,
0.02333272621035576,
-0.05766937509179115,
0.083925262093544,
-0.008928374387323856,
0.016853952780365944,
0.04357416555285454,
-0.012402496300637722,
-0.05527990683913231,
0.004922832828015089,
0.03513062000274658,
0.02963128872215748,
-0.0048265596851706505,
-0.03882141038775444,
0.05934832990169525,
0.06958740204572678,
0.0580698624253273,
0.0033508525229990482,
-0.06241913139820099,
0.11341439932584763,
-0.010657541453838348,
0.02288784272968769,
0.03363693505525589,
0.026512034237384796,
-0.04682358354330063,
-0.027737341821193695,
0.026984717696905136,
0.00723459804430604,
-0.06676651537418365,
-0.0904722511768341,
0.005636065732687712,
0.021072302013635635,
-0.004770689178258181,
0.10504505783319473,
-0.11425966769456863,
-0.00019316544057801366,
-0.01535600796341896,
0.022669252008199692,
-0.049763116985559464,
0.04249513894319534,
0.017010685056447983,
0.06406209617853165,
-0.09510436654090881,
6.564853096014309e-33,
0.09235099703073502,
0.06427150964736938,
-0.02647065743803978,
-0.025466132909059525,
0.0053763845935463905,
-0.014963879249989986,
-0.07180345803499222,
0.08295229822397232,
-0.06217058375477791,
-0.025384794920682907,
-0.08453131467103958,
-0.00966216716915369,
0.051753003150224686,
-0.052958302199840546,
-0.02828419767320156,
-0.10745321214199066,
0.008896118961274624,
-0.003252637106925249,
-0.07042102515697479,
-0.009410657919943333,
0.000027679949198500253,
-0.003776265075430274,
0.0007696303073316813,
-0.01772182621061802,
-0.002924043918028474,
0.05083413049578667,
0.017509009689092636,
-0.0018148163799196482,
-0.025842243805527687,
0.044814333319664,
0.007115530781447887,
-0.02564813941717148,
-0.02325521409511566,
0.005212555639445782,
0.003692176192998886,
-0.0799570381641388,
-0.050541263073682785,
-0.04844433441758156,
-0.03357851505279541,
-0.049863673746585846,
0.039450570940971375,
0.012972069904208183,
-0.12865930795669556,
0.05713770538568497,
0.009423257783055305,
-0.03651189059019089,
0.003598635783419013,
-0.06128803268074989,
0.05796419829130173,
-0.012089088559150696,
0.00575683917850256,
0.030228618532419205,
-0.07795792073011398,
-0.02227756939828396,
-0.0018317177891731262,
0.02690938115119934,
0.11344069987535477,
-0.04461260139942169,
0.026143154129385948,
0.06688778847455978,
0.05181146785616875,
-0.007446455303579569,
-0.04840880259871483,
0.01400234829634428,
-0.04216291755437851,
0.03551093861460686,
-0.02257750742137432,
0.02531275898218155,
-0.020883917808532715,
0.06307181715965271,
-0.02649994194507599,
0.07205511629581451,
0.047636762261390686,
-0.02623712457716465,
0.0720108151435852,
-0.07352396845817566,
0.01285230740904808,
0.059171099215745926,
-0.04162576049566269,
0.06713132560253143,
-0.0911155566573143,
-0.056954361498355865,
0.07188790291547775,
-0.04767373949289322,
-0.07516098767518997,
-0.03320208191871643,
-0.012650982476770878,
0.011690841056406498,
0.05989014729857445,
-0.030325839295983315,
0.0651218444108963,
0.06137680262327194,
0.027620427310466766,
-0.026123767718672752,
-0.14829163253307343,
-6.276743104047613e-33,
0.007219524588435888,
0.06084432825446129,
-0.052580296993255615,
-0.013374004513025284,
-0.057543493807315826,
-0.02046039327979088,
-0.0325496532022953,
0.08339573442935944,
-0.12450838088989258,
-0.07495598495006561,
0.07507283240556717,
0.015682095661759377,
0.027248965576291084,
-0.07424448430538177,
0.074476458132267,
-0.020055007189512253,
-0.018033336848020554,
-0.03710383176803589,
-0.025864308699965477,
0.03018227405846119,
0.06219044700264931,
-0.03643949702382088,
0.03551951050758362,
-0.07108175754547119,
0.026845674961805344,
0.01779334992170334,
0.060057368129491806,
-0.033935241401195526,
-0.05757550522685051,
0.015537282451987267,
-0.036083634942770004,
-0.0031690734904259443,
-0.03814614564180374,
0.028132621198892593,
0.032145846635103226,
0.03720610588788986,
0.049880269914865494,
-0.04911577329039574,
-0.029052609577775,
0.008485057391226292,
-0.018068412318825722,
0.16041702032089233,
-0.03812463954091072,
0.0985926166176796,
-0.04569205269217491,
0.00921216793358326,
0.018659111112356186,
0.11617547273635864,
0.004853712394833565,
-0.06424086540937424,
0.05958869680762291,
0.022564519196748734,
0.05676068365573883,
0.046301815658807755,
-0.0028585682157427073,
0.0922064334154129,
0.04660652577877045,
-0.002393654314801097,
0.0056554218754172325,
0.04454014077782631,
0.07185520976781845,
-0.028424622491002083,
-0.0031915176659822464,
-0.02197263203561306,
0.10322346538305283,
-0.03908805176615715,
0.026623904705047607,
0.008012291043996811,
0.002520696958526969,
-0.021405313163995743,
0.05990959703922272,
-0.011314083822071552,
-0.05942691117525101,
-0.008565460331737995,
0.07558625936508179,
0.014123638160526752,
-0.038909703493118286,
-0.026599165052175522,
-0.0025484829675406218,
-0.0013929734705016017,
-0.013317027129232883,
0.07077459245920181,
0.013116658665239811,
-0.026884062215685844,
0.08834303915500641,
0.0166061669588089,
-0.019672056660056114,
-0.017358452081680298,
-0.009208439849317074,
-0.05277104303240776,
-0.07344415783882141,
-0.0011464216513559222,
-0.08177721500396729,
0.10052978247404099,
0.09590840339660645,
-5.3444626502141546e-8,
-0.014792878180742264,
0.0018289382569491863,
-0.11238466203212738,
0.015214618295431137,
0.04970751330256462,
-0.04606618732213974,
-0.026493247598409653,
-0.011300615966320038,
0.055915284901857376,
0.04325896501541138,
0.013171888887882233,
-0.03740232437849045,
-0.030123146250844002,
-0.05272785201668739,
0.03102925606071949,
-0.06522929668426514,
-0.03721507638692856,
-0.06028049811720848,
-0.034992508590221405,
0.05219297483563423,
0.09674588590860367,
0.029652845114469528,
0.06367382407188416,
-0.028704876080155373,
0.004545228090137243,
0.039239007979631424,
-0.021672263741493225,
0.14361585676670074,
0.02037268504500389,
-0.0585220567882061,
-0.035145778208971024,
-0.007076756097376347,
-0.0364239402115345,
-0.012987256050109863,
-0.059958044439554214,
0.08039172738790512,
-0.08658912032842636,
0.037866126745939255,
0.04766126349568367,
0.0869731530547142,
0.016464749351143837,
-0.05404885485768318,
0.02253003418445587,
0.036462072283029556,
-0.036709051579236984,
0.07470685243606567,
-0.03943552449345589,
-0.06397771835327148,
-0.018213767558336258,
-0.026416372507810593,
0.0036056460812687874,
-0.054681770503520966,
0.03602594882249832,
0.02931136265397072,
-0.08241790533065796,
-0.03520498424768448,
-0.061656296253204346,
-0.08405736833810806,
-0.0678304135799408,
0.0037561743520200253,
0.07999837398529053,
-0.04963720217347145,
-0.07068171352148056,
-0.012377334758639336
] | 14,307 |
14,310 |
Enhanced optical activity of the blazar 3C279
|
S. S.Savchenko, E. G. Larionova, T. G. Grishina, D. A. Morozova
|
The quasar 3C279 shows significant activity at optical wavelengths. According to our observations with the 0.4-m LX-200 with FLI ML4710 (St. Petersburg, Russia) on January 9th, R band magnitude of the quasar reached 13.504 ± 0.005, which appears to be the object's highest state since the middle of 2018 as can be seen at the light curve here. We plan to continue to monitor this object and update the light curve.
|
2021-01-11 18:35:00
|
optical,agn,blazar,quasar
|
2021-01-11
|
18:35:00
| 414 |
[
-0.08611523360013962,
-0.12328090518712997,
-0.04747725650668144,
0.019989941269159317,
-0.07388834655284882,
-0.03902672976255417,
-0.04622925445437431,
0.03678254783153534,
0.01496029645204544,
0.041173793375492096,
-0.09054838865995407,
-0.055315520614385605,
-0.07283449918031693,
-0.020002255216240883,
0.08445098996162415,
0.011954437009990215,
0.054428327828645706,
-0.1307169646024704,
0.02535911463201046,
-0.005689237266778946,
0.0012439134297892451,
0.0073294369503855705,
0.013872598297894001,
0.06730923801660538,
0.042348239570856094,
0.03244509547948837,
-0.0447322353720665,
-0.05690803751349449,
0.035248737782239914,
-0.0024792917538434267,
0.061088383197784424,
-0.012622569687664509,
0.03194313868880272,
0.01704961247742176,
-0.023581191897392273,
-0.05041633918881416,
-0.0542299747467041,
-0.11733446270227432,
0.05097726359963417,
0.00921581406146288,
-0.03880209103226662,
-0.006347037386149168,
0.026678960770368576,
-0.026642734184861183,
-0.024029146879911423,
-0.03054526075720787,
-0.08347232639789581,
-0.001431143144145608,
-0.04057285934686661,
-0.0034155372995883226,
0.043282877653837204,
-0.010784534737467766,
-0.0841052234172821,
0.11385806649923325,
0.04410393163561821,
0.04488878324627876,
-0.035646386444568634,
-0.044167276471853256,
0.10144126415252686,
0.05562793090939522,
0.06000369042158127,
0.054857004433870316,
0.0015993505949154496,
0.003310965606942773,
-0.019423723220825195,
0.00489760609343648,
-0.08222238719463348,
-0.06148187443614006,
0.009543091990053654,
0.00936084520071745,
-0.000022535226889885962,
0.023089038208127022,
0.029453683644533157,
-0.016005653887987137,
0.03380444645881653,
0.025948621332645416,
0.08475609123706818,
-0.021327737718820572,
-0.031000271439552307,
-0.019636079668998718,
0.06193359196186066,
-0.04658211022615433,
-0.03899949789047241,
0.08569357544183731,
0.012605094350874424,
-0.049734920263290405,
-0.04092368483543396,
0.01785036362707615,
-0.010414947755634785,
-0.02774045430123806,
0.02033274434506893,
0.004918952006846666,
-0.08883795142173767,
-0.0767851397395134,
-0.06649115681648254,
0.033664271235466,
0.005757169332355261,
-0.033678341656923294,
0.039705827832221985,
0.035808783024549484,
0.10464885085821152,
-0.018069565296173096,
0.00993393175303936,
0.019402621313929558,
-0.0879913792014122,
0.07548529654741287,
0.02949434332549572,
0.053525105118751526,
-0.0320114865899086,
0.06448986381292343,
0.02687825635075569,
-0.00016822530596982688,
-0.03672046214342117,
-0.08801217377185822,
-0.06635039299726486,
0.07590749859809875,
-0.04045223072171211,
0.05911083519458771,
-0.07372045516967773,
0.015572176314890385,
-0.018889693543314934,
-0.04274716600775719,
0.04754025116562843,
0.019844211637973785,
0.06735628098249435,
-0.02283564954996109,
-0.024354685097932816,
1.2851625554597336e-33,
0.06798528134822845,
-0.04357803240418434,
-0.0003442974993959069,
-0.023634038865566254,
-0.014559444971382618,
0.07316809892654419,
0.022723201662302017,
0.021136131137609482,
-0.05680583417415619,
0.00482170470058918,
-0.058492712676525116,
0.060485854744911194,
-0.016569489613175392,
-0.000295947800623253,
0.014300072565674782,
-0.022137943655252457,
0.004825895186513662,
0.002729005878791213,
-0.11226759850978851,
0.04318377375602722,
0.011906399391591549,
-0.02795540727674961,
-0.04155616834759712,
0.007365771569311619,
0.06038730964064598,
0.07388602197170258,
0.027664657682180405,
0.01581568643450737,
-0.0017466131830587983,
0.004348570480942726,
0.024278391152620316,
0.0638078823685646,
-0.02608485147356987,
0.01885158196091652,
-0.017445949837565422,
-0.06197920814156532,
-0.04873685538768768,
-0.0017042483668774366,
-0.07122807949781418,
-0.001889116014353931,
0.104690320789814,
0.051845211535692215,
0.02140926942229271,
-0.007630994543433189,
0.04680798575282097,
0.04878086969256401,
0.06270664930343628,
0.024792807176709175,
0.005025774240493774,
0.09095102548599243,
0.007231630850583315,
-0.07136373221874237,
-0.04722413048148155,
0.04154551029205322,
0.05448385700583458,
0.03534356504678726,
0.027494972571730614,
0.008444239385426044,
0.0321931466460228,
-0.019366033375263214,
0.06456258147954941,
-0.03681422397494316,
0.05175231024622917,
-0.007761344779282808,
-0.02236277423799038,
0.004176802933216095,
0.0396207831799984,
0.11910635232925415,
-0.031655680388212204,
0.03869462385773659,
0.012711809016764164,
0.007648102939128876,
0.046903133392333984,
-0.0651603415608406,
0.1121799573302269,
-0.045447006821632385,
-0.018042810261249542,
0.05824875831604004,
-0.013736182823777199,
0.009861444123089314,
-0.03660016134381294,
-0.0815919041633606,
0.10659131407737732,
-0.0011844487162306905,
-0.10467594861984253,
0.04639248177409172,
-0.026973102241754532,
-0.01639530248939991,
-0.07275542616844177,
-0.007093820720911026,
0.05422072112560272,
-0.03155873343348503,
0.007807522546499968,
0.04633081331849098,
-0.1108999028801918,
-1.6282330613056145e-33,
0.09225859493017197,
-0.03407761827111244,
0.04522024095058441,
0.0275509562343359,
0.003462931839749217,
-0.04439472779631615,
0.008849467150866985,
0.09395937621593475,
-0.0620848685503006,
-0.020292669534683228,
0.11066661030054092,
0.06107836216688156,
-0.016688743606209755,
-0.06406152248382568,
0.007859771139919758,
-0.05415667966008186,
0.0407806858420372,
0.01111373770982027,
-0.07066656649112701,
-0.019353408366441727,
-0.011177598498761654,
-0.026391195133328438,
0.015135537832975388,
-0.01847529411315918,
-0.03506208211183548,
0.04033856466412544,
0.07953669130802155,
-0.06728570908308029,
-0.036078885197639465,
-0.036690130829811096,
-0.1088629812002182,
-0.03280554711818695,
-0.020025359466671944,
-0.03700031340122223,
0.02407868579030037,
0.007131895981729031,
0.11644809693098068,
-0.09633773565292358,
-0.11544805020093918,
-0.06197231262922287,
0.06970498710870743,
0.1610438972711563,
-0.0068269334733486176,
0.03344303369522095,
0.0024744891561567783,
-0.002101119374856353,
0.006460723467171192,
0.05531945824623108,
0.005104841198772192,
-0.009871000424027443,
-0.002923408057540655,
-0.10367254912853241,
0.019653061404824257,
0.07519546151161194,
0.026857569813728333,
0.04054788500070572,
0.021704232320189476,
-0.0035381997004151344,
0.0281760822981596,
0.058173999190330505,
-0.002012308221310377,
0.032091137021780014,
-0.043705835938453674,
-0.017455287277698517,
0.030634326860308647,
-0.0008305087103508413,
-0.003032851032912731,
0.0638389065861702,
0.058657046407461166,
-0.003062173491343856,
0.040464848279953,
-0.110135018825531,
-0.09427585452795029,
0.04610931873321533,
0.03103262186050415,
-0.0013032285496592522,
0.016143690794706345,
-0.0673791840672493,
0.038877904415130615,
-0.00572599284350872,
0.024653660133481026,
-0.04464810714125633,
0.02159198932349682,
0.026004714891314507,
0.07019595056772232,
-0.03134263679385185,
-0.007133078761398792,
-0.12915505468845367,
-0.04879658296704292,
0.028767429292201996,
-0.10680566728115082,
0.044754404574632645,
-0.0021434833761304617,
-0.011016828939318657,
0.04997929930686951,
-4.237820760977229e-8,
0.0013836072757840157,
0.05245177820324898,
-0.05673420801758766,
0.06209646910429001,
0.060034189373254776,
0.004041456617414951,
-0.012693585827946663,
0.026059361174702644,
-0.016719045117497444,
0.04648752510547638,
0.04987182840704918,
-0.10505321621894836,
0.013523036614060402,
0.007797290571033955,
0.038287967443466187,
0.01208862941712141,
0.031626615673303604,
-0.03932425007224083,
-0.030346976593136787,
0.05202554538846016,
0.013722000643610954,
-0.009327310137450695,
0.0787883996963501,
-0.07985163480043411,
0.024647118523716927,
0.03912832587957382,
-0.05343339592218399,
0.12352438271045685,
0.02241179719567299,
0.010514698922634125,
-0.01344566885381937,
-0.019169168546795845,
0.003139684209600091,
-0.013818619772791862,
-0.03707261011004448,
-0.004351375158876181,
-0.1014152467250824,
-0.014528337866067886,
0.04218188673257828,
0.04587087035179138,
0.009983428753912449,
0.011898567900061607,
-0.06898141652345657,
0.03344321250915527,
-0.06420766562223434,
-0.008790154941380024,
-0.047311633825302124,
-0.08608013391494751,
-0.04648283123970032,
0.0361529104411602,
0.02495381608605385,
-0.04989277571439743,
-0.008310895413160324,
-0.04010340943932533,
-0.0918005108833313,
-0.07936754822731018,
0.028868120163679123,
0.04918798804283142,
-0.04429194703698158,
0.006687018554657698,
0.06885699927806854,
-0.10576429963111877,
-0.08192452043294907,
0.0688318982720375
] | 14,308 |
14,311 |
Fermi-LAT detection of enhanced gamma-ray activity from the FSRQ 5C 12.291
|
C. C. Cheung (NRL), S. Buson (Univ. Wuerzburg), on behalf of the Fermi Large Area Telescope Collaboration
|
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed enhanced gamma-ray activity from a source positionally consistent with the flat-spectrum radio quasar 5C 12.291 (a.k.a., MG2 J130822+3546; Benn et al. 1984, MNRAS 209, 683; Langston et al. 1990, ApJS 72, 621), also known as 4FGL J1308.5+3547 (The Fermi-LAT collaboration 2020, ApJS, 247, 33; see also 4FGL-DR2, Ballet et al. 2020, arXiv:2005.11208), with coordinates R.A. = 197.0987879 deg, Decl. = +35.7769900 deg (J2000; Fomalont et al. 2003, AJ 126, 2562), and redshift z=1.055 (Vermeulen et al. 1996, AJ 111, 1013).
Preliminary analysis indicates that this source was in an elevated gamma-ray emission state on 2021 January 8, with a daily averaged gamma-ray flux (E>100MeV) of (6.0+/-1.4) X 10^-7 photons cm^-2 s^-1 (statistical uncertainty only). This corresponds to a flux increase of a factor of 70 relative to the 10-year average flux reported in the 4FGL-DR2. This is the highest LAT daily flux ever observed for this source. The corresponding photon index is 2.1+/-0.2, and is marginally smaller than the 4FGL-DR2 value of 2.37+/-0.05.
Because Fermi normally operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. For this source the Fermi LAT contact person is C. C. Cheung (Teddy.Cheung at nrl.navy.mil).
The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
|
2021-01-11 23:02:00
|
radio,gamma ray,blazar,quasar
|
2021-01-11
|
23:02:00
| 1,648 |
[
-0.08462598919868469,
-0.06853215396404266,
-0.04997804015874863,
0.008067077957093716,
-0.056547559797763824,
-0.027464929968118668,
0.01984577812254429,
0.06900772452354431,
-0.025251375511288643,
-0.038300953805446625,
-0.017385968938469887,
0.005319891031831503,
-0.00528664980083704,
-0.008414297364652157,
0.011578290723264217,
-0.02809780091047287,
0.0834430530667305,
-0.07632756233215332,
-0.01967279054224491,
-0.037270113825798035,
-0.06477166712284088,
0.03804592043161392,
0.0731126144528389,
-0.02097328193485737,
0.052467525005340576,
-0.0339781828224659,
-0.01687127910554409,
-0.053583841770887375,
0.027631592005491257,
-0.041895996779203415,
0.020691707730293274,
0.037911612540483475,
-0.06526979058980942,
0.03731926158070564,
-0.003211110131815076,
0.03035215474665165,
0.013240862637758255,
-0.08622463047504425,
0.032437749207019806,
-0.000843020505271852,
-0.0014132700162008405,
0.026948293671011925,
0.03353200480341911,
-0.051391907036304474,
-0.04242989793419838,
-0.062374334782361984,
-0.00812020804733038,
-0.05223850905895233,
-0.06905420869588852,
0.027818137779831886,
0.0286894291639328,
0.010534657165408134,
-0.014056278392672539,
0.049928177148103714,
0.013948502019047737,
0.0036730028223246336,
-0.07178133726119995,
-0.06788325309753418,
0.03724511340260506,
0.09281118959188461,
0.014004895463585854,
0.020145617425441742,
-0.06626452505588531,
-0.0021707448177039623,
0.0006623758235946298,
-0.020218048244714737,
-0.05869337171316147,
-0.11763594299554825,
0.0022635527420789003,
-0.04578356072306633,
-0.04315982013940811,
0.055947646498680115,
-0.041451528668403625,
-0.07338612526655197,
-0.0002662678307387978,
0.012438589707016945,
0.05782153084874153,
-0.00875871442258358,
0.054829686880111694,
-0.028679976239800453,
0.03466954454779625,
0.02327887900173664,
0.03871471434831619,
0.031315162777900696,
0.0005545868189074099,
-0.008019342087209225,
-0.08928307890892029,
0.06942383199930191,
0.06323546916246414,
-0.012691237963736057,
0.056119274348020554,
0.02917398139834404,
-0.10036783665418625,
0.026639889925718307,
-0.06031348928809166,
0.030805356800556183,
0.025039102882146835,
0.0033255687449127436,
0.033951327204704285,
0.10218027234077454,
0.07711870223283768,
0.006483486853539944,
0.014879574999213219,
0.09527136385440826,
-0.07903872430324554,
0.00270911306142807,
0.02667742222547531,
0.09252175688743591,
-0.06671465933322906,
-0.03616781160235405,
0.04005681723356247,
0.014366444200277328,
-0.017510956153273582,
-0.04937673732638359,
-0.030766187235713005,
0.016944127157330513,
-0.016074389219284058,
0.05048361048102379,
-0.09614372253417969,
-0.0634104534983635,
-0.007245827466249466,
0.020814433693885803,
0.017461055889725685,
0.05033024400472641,
0.036744728684425354,
0.000873346405569464,
-0.13564977049827576,
5.576367774122355e-33,
0.0688694417476654,
0.08837727457284927,
0.08292203396558762,
0.010247893631458282,
0.0006271754973568022,
0.0783858448266983,
-0.08619611710309982,
0.0358484610915184,
0.02432744950056076,
0.023587262257933617,
-0.05116664245724678,
0.08674640953540802,
0.023381786420941353,
-0.04927904158830643,
0.005527083296328783,
-0.04613840579986572,
0.051971107721328735,
0.0690864697098732,
-0.043088823556900024,
0.009551526047289371,
0.03600611537694931,
0.08129160851240158,
-0.0023217620328068733,
-0.016685519367456436,
0.10544591397047043,
0.12076976150274277,
0.009641277603805065,
0.04280674457550049,
-0.059651900082826614,
0.05506384000182152,
-0.019461818039417267,
0.015584691427648067,
-0.03358104079961777,
0.03155972436070442,
0.03227414935827255,
-0.05036860704421997,
-0.08771694451570511,
-0.03445931151509285,
-0.0040143681690096855,
-0.024001380428671837,
0.07143496721982956,
0.07127087563276291,
-0.12880311906337738,
-0.013538656756281853,
0.00998688768595457,
-0.0007863547652959824,
-0.006583396345376968,
0.02462150529026985,
0.07689390331506729,
0.07613866031169891,
-0.026719141751527786,
0.014791502617299557,
-0.04107687994837761,
-0.011258802376687527,
0.05630907416343689,
0.04442484304308891,
0.04258057847619057,
0.018074525520205498,
0.01703130640089512,
0.07056793570518494,
0.040341202169656754,
0.039638668298721313,
0.0363275371491909,
0.09155885130167007,
0.006844773422926664,
-0.021349186077713966,
0.02052830532193184,
-0.0009523454937152565,
-0.015162307769060135,
0.02214415930211544,
-0.05021287500858307,
0.06722447276115417,
0.12827499210834503,
-0.03935284912586212,
0.12419630587100983,
-0.13781772553920746,
-0.021162591874599457,
0.03988901153206825,
-0.022873127833008766,
0.012147324159741402,
-0.07092159241437912,
-0.07810445129871368,
-0.005154211539775133,
-0.06224583834409714,
-0.07390659302473068,
0.027936091646552086,
-0.02068260870873928,
-0.0009279778460040689,
0.04190138354897499,
-0.06603243947029114,
0.029331272467970848,
0.000650709611363709,
-0.008737850934267044,
-0.031754009425640106,
-0.09321948140859604,
-5.3364765604263886e-33,
-0.0019078442128375173,
-0.03687898442149162,
-0.017423449084162712,
-0.02269766665995121,
-0.03417777270078659,
-0.03657720237970352,
0.08045388013124466,
-0.0004128011059947312,
-0.02116379141807556,
0.024219930171966553,
0.06765937060117722,
0.07455536723136902,
-0.008379006758332253,
-0.06557919830083847,
0.02052929438650608,
-0.036436472088098526,
0.03431449458003044,
0.017562609165906906,
-0.04671091213822365,
-0.007741573266685009,
0.05754208192229271,
-0.026473024860024452,
0.010444276966154575,
-0.018220340833067894,
-0.018594030290842056,
0.03407511115074158,
0.05530139431357384,
-0.06723722070455551,
0.004428173415362835,
0.02413085289299488,
-0.08966100960969925,
-0.03036978468298912,
0.03135364502668381,
-0.10569421947002411,
0.04151315614581108,
-0.037733953446149826,
0.07487478852272034,
0.004555187188088894,
-0.09312226623296738,
-0.07590974122285843,
0.026046190410852432,
0.14221428334712982,
0.02770014852285385,
0.031002337113022804,
-0.009283721446990967,
0.07181647419929504,
0.028110386803746223,
0.027996918186545372,
-0.024315565824508667,
-0.01763151027262211,
-0.001978193875402212,
-0.09798827022314072,
-0.03247816860675812,
0.030079927295446396,
-0.03168735280632973,
0.03339007496833801,
0.0034223899710923433,
0.03318526968359947,
-0.014242424629628658,
0.0176346767693758,
0.013369345106184483,
-0.029331613332033157,
0.054644130170345306,
-0.02387755736708641,
0.07190543413162231,
-0.03319540247321129,
0.0313214547932148,
0.07625799626111984,
0.03409053757786751,
0.02462487295269966,
0.08763574808835983,
-0.11788305640220642,
-0.0593050941824913,
0.028027649968862534,
0.034821514040231705,
0.09362738579511642,
0.046722717583179474,
-0.08940351754426956,
-0.010262786410748959,
-0.011460505425930023,
0.0008336807950399816,
0.019237099215388298,
0.012247061356902122,
-0.001455161371268332,
0.0751340314745903,
-0.02977597899734974,
-0.03292042762041092,
0.00699733616784215,
-0.030042046681046486,
-0.020944325253367424,
-0.018567198887467384,
0.044284772127866745,
0.044718705117702484,
0.039358366280794144,
0.018480725586414337,
-6.070040825534306e-8,
-0.03375799581408501,
0.037948042154312134,
-0.09555111825466156,
0.03724309056997299,
-0.0068034399300813675,
-0.07932888716459274,
0.012428250163793564,
0.013289771042764187,
0.007421106565743685,
0.019333897158503532,
0.05667666345834732,
0.06487705558538437,
0.042710959911346436,
-0.022101759910583496,
0.005049682687968016,
-0.018103275448083878,
-0.049304984509944916,
-0.060107387602329254,
-0.03376802057027817,
0.06747385859489441,
0.00823579728603363,
0.03334277495741844,
0.10254620760679245,
-0.06557508558034897,
-0.040076978504657745,
-0.004402499180287123,
-0.07778526097536087,
0.07479643821716309,
0.03135805204510689,
-0.0694069042801857,
-0.0309317447245121,
0.0012276234338060021,
0.05106956511735916,
-0.05964253470301628,
-0.08284418284893036,
-0.03219695761799812,
-0.06980541348457336,
0.016919024288654327,
0.08666477352380753,
0.07891390472650528,
-0.03763727843761444,
-0.045909978449344635,
0.0566413588821888,
0.06044241040945053,
-0.08982516825199127,
0.035693079233169556,
-0.03800368681550026,
-0.10616888105869293,
0.02005602978169918,
0.035641320049762726,
-0.08100330084562302,
0.020060304552316666,
-0.00852623675018549,
-0.1334567368030548,
-0.08400233089923859,
0.015279334038496017,
-0.00866849347949028,
-0.0225748922675848,
-0.02264656312763691,
-0.03160643205046654,
0.031913042068481445,
-0.05769776180386543,
-0.09859704971313477,
-0.008338621817529202
] | 14,309 |
14,312 |
Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
|
T. Hung, G. Dimitriadis, R. J. Foley (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. Targets were supplied by ZTF (reported by ALeRCE), YSE and ATLAS. All observations were made on 2021 Jan 11 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure an Si II 6355 velocity of -10,200 km/s. (2) We measure an Si II 6355 velocity of -12,100 km/s. (3) We measure an Si II 6355 velocity of -11,700 km/s. (4) Good fits with SNe Ia 99aa and 91T-like spectra a few days before maximum. We measure an Si II 6355 velocity of -9,900 km/s.
|
2021-01-12 02:40:00
|
optical,supernovae,transient
|
2021-01-12
|
02:40:00
| 784 |
[
-0.06675142794847488,
-0.03869445249438286,
0.010182512924075127,
0.01537150889635086,
0.008002719841897488,
0.009683463722467422,
-0.03695819526910782,
0.035720095038414,
0.012186550535261631,
-0.02008739486336708,
0.01567058265209198,
-0.10002830624580383,
-0.02306690439581871,
-0.02641131728887558,
0.03524281829595566,
-0.06310074031352997,
0.04829701781272888,
-0.022981498390436172,
-0.012424313463270664,
0.0318954698741436,
0.003930766135454178,
0.03380837291479111,
-0.03817306086421013,
0.01951705664396286,
0.05652836710214615,
-0.05087975785136223,
-0.04819159209728241,
-0.04337843880057335,
-0.01454264484345913,
-0.02465433068573475,
0.01640968583524227,
0.03446177765727043,
-0.07903848588466644,
0.062050387263298035,
0.06875518709421158,
-0.04487016424536705,
0.035805217921733856,
-0.04734041914343834,
0.023586135357618332,
0.02880709245800972,
0.025071613490581512,
-0.05617263913154602,
-0.0054017771035432816,
-0.0034146790858358145,
0.04808928817510605,
0.042191993445158005,
0.004179345443844795,
-0.007163939531892538,
-0.11294301599264145,
0.015781331807374954,
-0.040277935564517975,
0.02940955013036728,
0.03885481879115105,
0.04414571821689606,
0.04930094629526138,
0.04914040118455887,
0.0006029813084751368,
-0.08566587418317795,
0.09990164637565613,
-0.10338229686021805,
0.049711406230926514,
-0.06061539053916931,
-0.04586194455623627,
-0.0695255696773529,
-0.011165331117808819,
0.015124516561627388,
-0.020417770370841026,
-0.07044365257024765,
0.11557648330926895,
0.009849936701357365,
-0.04098298400640488,
0.05968324840068817,
0.027853624895215034,
0.005174090154469013,
0.0003422624431550503,
-0.06446859985589981,
0.107061967253685,
0.0730065330862999,
-0.01859511248767376,
-0.10002628713846207,
0.08604332059621811,
-0.041070856153964996,
-0.08028337359428406,
-0.04573684558272362,
0.006785194389522076,
0.026369504630565643,
-0.03669637441635132,
0.12381638586521149,
-0.04996022954583168,
-0.012325461953878403,
-0.0238539669662714,
-0.06059461832046509,
-0.03990159556269646,
-0.09479782730340958,
0.049700330942869186,
-0.012244276702404022,
-0.023587077856063843,
-0.05264737457036972,
0.11070077121257782,
0.02542758546769619,
0.0988614410161972,
-0.029034150764346123,
-0.0776364803314209,
0.07850159704685211,
-0.02683638222515583,
0.04494423419237137,
0.04862562194466591,
0.029753414914011955,
-0.01716592162847519,
0.02675938419997692,
0.09808334708213806,
-0.003611090127378702,
-0.004670517984777689,
-0.11431434750556946,
-0.025722987949848175,
0.023732978850603104,
-0.0769755095243454,
0.10951022803783417,
-0.0633951872587204,
-0.015013432130217552,
0.00040876487037166953,
0.026133056730031967,
-0.014429135248064995,
0.029935024678707123,
0.0580265037715435,
-0.003149955300614238,
-0.029907047748565674,
5.115179463308523e-33,
0.08041264116764069,
0.04387959837913513,
-0.0936516672372818,
-0.008244717493653297,
-0.0021884660236537457,
-0.0022977192420512438,
-0.0893087312579155,
0.04807437211275101,
-0.01036779209971428,
-0.046981409192085266,
-0.0662560760974884,
-0.0026526344008743763,
-0.02243179827928543,
-0.06248961389064789,
-0.05781339854001999,
0.030512508004903793,
0.06965486705303192,
0.008967380970716476,
-0.09188534319400787,
0.00867775734513998,
-0.01379410270601511,
0.01708413101732731,
-0.04642161354422569,
-0.011230777949094772,
0.058862991631031036,
0.08021390438079834,
0.002202283125370741,
0.0021881922148168087,
-0.028511207550764084,
0.03517797589302063,
-0.02376205287873745,
0.006859580986201763,
-0.011483649723231792,
-0.016680080443620682,
-0.010038272477686405,
-0.019528809934854507,
-0.020917179062962532,
0.01086445152759552,
0.04370807111263275,
-0.04494348168373108,
0.016917753964662552,
0.05590297654271126,
-0.09219951182603836,
0.034563153982162476,
-0.0032654653768986464,
-0.05716419219970703,
-0.03754429519176483,
0.04422353208065033,
0.0739692896604538,
0.03553090617060661,
0.013463671319186687,
-0.07575865834951401,
-0.04831505939364433,
0.00649415235966444,
-0.009888955391943455,
0.0016110604628920555,
0.03265617415308952,
-0.024372315034270287,
0.010672944597899914,
0.08371908962726593,
0.07443715631961823,
-0.060787711292505264,
0.017837509512901306,
-0.0005992226069793105,
-0.012655570171773434,
0.06172775849699974,
-0.05586279183626175,
0.08370345830917358,
-0.018056506291031837,
0.03897411748766899,
-0.03776855394244194,
0.07680287957191467,
0.09231537580490112,
-0.07319192588329315,
0.06782633066177368,
-0.047032229602336884,
0.03864481672644615,
0.044251155108213425,
-0.0417059101164341,
0.06570948660373688,
-0.058735426515340805,
-0.04150158539414406,
-0.008713719435036182,
-0.02031821757555008,
-0.0576462522149086,
-0.009516289457678795,
-0.03149331733584404,
-0.017236195504665375,
0.010052437894046307,
-0.0906311497092247,
0.05477386340498924,
-0.013665307313203812,
-0.016180789098143578,
-0.06472325325012207,
-0.08849470317363739,
-5.1855463918586686e-33,
0.06146835908293724,
0.0773012563586235,
-0.05614985525608063,
0.10907286405563354,
-0.009555136784911156,
0.05218204855918884,
0.08814838528633118,
0.12838222086429596,
-0.13377587497234344,
-0.057271379977464676,
0.038711946457624435,
0.004396482370793819,
-0.10793344676494598,
-0.08929561078548431,
0.014636678621172905,
-0.012361748144030571,
0.040131859481334686,
-0.014272933825850487,
0.029354829341173172,
-0.0031145955435931683,
0.036977484822273254,
-0.05541563406586647,
0.007663003634661436,
-0.04443325474858284,
0.013333756476640701,
0.056267332285642624,
0.03938986733555794,
-0.0038139368407428265,
-0.08646199852228165,
-0.02736818604171276,
0.00011643021571217105,
-0.015595721080899239,
-0.059932298958301544,
-0.02167949266731739,
-0.007862990722060204,
0.04180101305246353,
-0.0046785743907094,
0.0015952731482684612,
-0.12001852691173553,
-0.020726246759295464,
0.04186936467885971,
0.10444390028715134,
0.016867289319634438,
-0.020097631961107254,
-0.005488777067512274,
-0.0276029035449028,
0.01109423115849495,
0.08926798403263092,
0.06037670746445656,
-0.08508503437042236,
0.06194458156824112,
-0.021464791148900986,
0.027713820338249207,
0.04418104141950607,
0.007363234646618366,
0.09544496983289719,
0.0008359153289347887,
0.05889425799250603,
-0.004348081536591053,
0.03674953058362007,
-0.0199196208268404,
0.011768529191613197,
0.0021755839698016644,
0.03851974755525589,
0.045619793236255646,
-0.05690135806798935,
-0.0008687307708896697,
0.04028471186757088,
0.03038325533270836,
-0.012619050219655037,
0.046954479068517685,
0.004437711089849472,
-0.025665465742349625,
0.002500941976904869,
0.02049338072538376,
0.028727838769555092,
-0.020311256870627403,
-0.014450514689087868,
0.03135625645518303,
0.04884146526455879,
-0.026567908003926277,
-0.016429336741566658,
0.04748176783323288,
0.03857071325182915,
0.037878796458244324,
0.03534526750445366,
-0.046185802668333054,
-0.03428778052330017,
0.04119670018553734,
-0.04776037856936455,
-0.017767010256648064,
0.015405451878905296,
-0.019542532041668892,
-0.01860426925122738,
0.04537360742688179,
-5.662896640501458e-8,
0.01081695593893528,
0.019155075773596764,
-0.06963173300027847,
0.039129894226789474,
-0.021185878664255142,
0.024576812982559204,
0.004575126804411411,
0.0526055172085762,
0.012738730758428574,
-0.051446329802274704,
0.05867713317275047,
-0.05410144478082657,
0.014938006177544594,
-0.02593330480158329,
0.042562637478113174,
-0.02826966531574726,
-0.048147860914468765,
-0.05334626883268356,
-0.030067404732108116,
0.07567942887544632,
0.03937628120183945,
0.08541319519281387,
0.045209042727947235,
-0.054346729069948196,
-0.010335828177630901,
0.08205354958772659,
-0.060225799679756165,
0.09170008450746536,
0.028873080387711525,
-0.04033272713422775,
0.03554817661643028,
-0.05449569225311279,
-0.047406453639268875,
-0.004343862179666758,
-0.056050993502140045,
-0.03858829289674759,
-0.10503052920103073,
0.0974750816822052,
0.10077480226755142,
0.07933758199214935,
-0.016721416264772415,
0.010147560387849808,
-0.014803729020059109,
0.055891003459692,
-0.07828844338655472,
-0.00891911331564188,
-0.04208603873848915,
-0.09401270002126694,
-0.024030914530158043,
0.06441555917263031,
-0.035710807889699936,
0.037453267723321915,
-0.056480132043361664,
-0.026447556912899017,
-0.09619347751140594,
-0.0313066765666008,
0.005765879061073065,
-0.06522450596094131,
-0.0948847308754921,
-0.019487984478473663,
0.14354971051216125,
-0.04565151408314705,
-0.07825355231761932,
0.027464700862765312
] | 14,310 |
14,313 |
Detection and follow-up observation of SN 2020aeps, the first discovery of XMO-PAT Survey
|
Hanjie Tan (Graduate Institute of Astronomy, National Central University), Mi Zhang, Guoyou Sun (Xingming Observatory), Xing Gao (Urumqi No. 1 Senior High School)
|
Supernova SN 2020aeps (internal name XM25HT) was discovered by XMO-PAT unfiltered images on 2020-12-29.90 with 16.89 r mag. The spectrum obtained by SCAT (ATel #11444) on 2021-01-05 classified it as a type Ia supernova with a redshift of z = 0.0244, and was about 1 week before the peak brightness. The SN 2020aeps is located 1.8" east and 7.4" south of the center of galaxy KUG 1206+328 (z = 0.024441 given by NASA/IPAC Extragalactic Database (NED)), and is only 0.76" away from SDSS J120847.47+323206.9 with 20.9 r mag. The discovery images are available at: http://xjltp.china-vo.org/XM25HT.html .
We conducted follow-up observations of SN 2020aeps using 0.6-m Ningbo bureau of Education and Xinjiang observatory Telescope (NEXT) on 2020-12-30, 2021-01-09, and 2021-01-11. All aperture photometry listed below were calibrated by APASS (for B and V band images) and SDSS (for g, r, and i band images) catalog.
XMO-PAT Survey started on 1st December 2020, is the pilot test of Xingming Array Sky Survey (planned). The 0.3-m PAT (Photometric Auxiliary Telescope) was installed at Xingming Observatory (Xinjiang, China), with a field-of-view of 2x2 degrees to a depth of 19.0 mag, covered ~500 square degrees every night. All data were reduced with the real-time analysis pipeline, transients and small bodies of solar system candidates were performed by the machine learning techniques.
|
2021-01-12 06:30:00
|
optical,supernovae,transient
|
2021-01-12
|
06:30:00
| 1,388 |
[
-0.11470215767621994,
-0.015349559485912323,
0.023309214040637016,
0.012409832328557968,
0.055410515516996384,
0.011189164593815804,
-0.031229348853230476,
0.03715835139155388,
-0.03820738568902016,
-0.008269655518233776,
0.05972859635949135,
-0.0284578837454319,
0.01592598482966423,
-0.004804297816008329,
-0.00027085680630989373,
-0.0444878526031971,
0.041095051914453506,
-0.10651791840791702,
0.03711390122771263,
0.005198493134230375,
0.06102873384952545,
0.05519866570830345,
-0.011793904937803745,
0.026245545595884323,
0.029302118346095085,
-0.02210085652768612,
-0.04580199345946312,
-0.034236639738082886,
0.012521949596703053,
0.020101182162761688,
0.05274433642625809,
0.06217086687684059,
-0.038132935762405396,
0.024164000526070595,
-0.003250350244343281,
-0.023932339623570442,
0.011387372389435768,
-0.01236887089908123,
0.06229736655950546,
-0.08622469007968903,
0.03947143256664276,
-0.04851735010743141,
0.03220786526799202,
-0.03132824972271919,
-0.011028642766177654,
-0.002886365167796612,
-0.07973606884479523,
-0.08298192173242569,
-0.08490631729364395,
0.043299078941345215,
0.014977913349866867,
-0.07655344903469086,
0.03697891905903816,
0.03668122738599777,
0.09704617410898209,
0.09041102975606918,
-0.04249536618590355,
-0.08250687271356583,
0.051224179565906525,
-0.010820162482559681,
0.09076593816280365,
-0.07125827670097351,
-0.04523446783423424,
-0.03147726133465767,
0.050964273512363434,
0.054262399673461914,
-0.03163640573620796,
-0.07106966525316238,
0.051948823034763336,
-0.06866692006587982,
0.05823669955134392,
0.018353234976530075,
-0.029855532571673393,
0.01605372130870819,
-0.035823699086904526,
0.02496396191418171,
0.12622684240341187,
0.03967929258942604,
0.030422955751419067,
-0.10836970806121826,
0.053368475288152695,
0.02056833729147911,
0.03799305856227875,
-0.01909794472157955,
-0.033580828458070755,
-0.029023058712482452,
-0.05465535447001457,
0.0674154981970787,
0.05068662390112877,
0.022380618378520012,
0.045719802379608154,
-0.008658897131681442,
-0.10615844279527664,
-0.035205528140068054,
0.0272222850471735,
0.05113963782787323,
-0.02337009832262993,
0.04380423575639725,
0.026491254568099976,
0.02032826840877533,
0.09463315457105637,
0.031598061323165894,
-0.011651789769530296,
0.01658058725297451,
-0.018288476392626762,
0.01691395603120327,
0.028435707092285156,
0.0024585488718003035,
-0.02194579876959324,
0.025561440736055374,
0.0629095807671547,
-0.040335074067115784,
-0.02132362499833107,
-0.051263611763715744,
0.031999148428440094,
0.00904946681112051,
0.009208312258124352,
0.10495708882808685,
-0.07935928553342819,
-0.0401311069726944,
-0.048690903931856155,
0.015843544155359268,
-0.014088872820138931,
0.02795356698334217,
0.039386335760354996,
0.08850713819265366,
-0.11505991965532303,
6.697783139993078e-33,
0.02443673461675644,
0.0590849369764328,
-0.0362095907330513,
0.018006572499871254,
0.02839406579732895,
0.025170331820845604,
0.03906046599149704,
0.08706488460302353,
-0.03490448370575905,
-0.027632374316453934,
-0.09441249817609787,
0.02279016003012657,
-0.016562368720769882,
-0.07579687237739563,
-0.05084971338510513,
-0.05144600570201874,
-0.03177652880549431,
-0.01237812265753746,
-0.06883291155099869,
0.024534396827220917,
-0.01664753444492817,
-0.016547327861189842,
-0.008327607996761799,
-0.07380513846874237,
-0.01771770603954792,
-0.013309108093380928,
0.058182764798402786,
-0.04794527217745781,
-0.00796266458928585,
0.022851867601275444,
-0.021135302260518074,
-0.028689740225672722,
0.017842145636677742,
0.06407017260789871,
-0.010549397207796574,
-0.030694233253598213,
0.010861659422516823,
-0.005544901359826326,
-0.04132614657282829,
0.01208515651524067,
0.13876555860042572,
0.09293797612190247,
-0.06339512765407562,
0.0427468940615654,
0.03326854854822159,
-0.015522611327469349,
0.01628662645816803,
0.01470607053488493,
0.06505227088928223,
-0.014216785319149494,
-0.039959024637937546,
-0.011835457757115364,
-0.09488477557897568,
-0.01483028382062912,
0.026362016797065735,
0.06792308390140533,
0.014869722537696362,
-0.012937513180077076,
-0.007870947010815144,
0.009896117262542248,
0.054021574556827545,
-0.011318781413137913,
-0.004703056532889605,
0.04841304197907448,
0.030063172802329063,
0.054028548300266266,
-0.007474279962480068,
-0.03582935407757759,
0.002271355828270316,
-0.034292519092559814,
0.006363247986882925,
0.030777567997574806,
0.14039580523967743,
-0.017292022705078125,
0.070914126932621,
-0.0744776576757431,
0.02594086155295372,
0.01621532440185547,
-0.02112925611436367,
0.05327317863702774,
-0.039124712347984314,
-0.015240213833749294,
0.055278703570365906,
-0.008992771618068218,
-0.05575217679142952,
-0.07790746539831161,
-0.0334131084382534,
0.028803225606679916,
0.04521810635924339,
-0.043612778186798096,
0.040409866720438004,
-0.06315798312425613,
-0.026828041300177574,
-0.00003129492688458413,
-0.1253196895122528,
-5.3595801672078314e-33,
0.004692042246460915,
0.05286732316017151,
-0.02919607050716877,
0.025587115436792374,
-0.0031382697634398937,
0.0377674400806427,
0.026589863002300262,
0.10603027790784836,
-0.0717967078089714,
-0.05367898941040039,
0.08805940300226212,
0.052431777119636536,
0.034861184656620026,
-0.11494419723749161,
0.04801680147647858,
0.006701587699353695,
0.07528483867645264,
0.020999589934945107,
-0.041631657630205154,
-0.06436242908239365,
0.00867846142500639,
0.014692206867039204,
-0.031182581558823586,
0.060452189296483994,
0.027309589087963104,
0.0548739992082119,
0.07872660458087921,
0.03495294973254204,
-0.026433680206537247,
0.025659965351223946,
-0.024392180144786835,
-0.07627031207084656,
-0.0060731191188097,
-0.013613917864859104,
-0.01754438877105713,
-0.028330383822321892,
0.04612957686185837,
0.02342359907925129,
-0.08113092184066772,
-0.02263614535331726,
-0.028692638501524925,
0.11929301917552948,
-0.020213482901453972,
0.058129627257585526,
0.008796712383627892,
0.01583303138613701,
-0.016196807846426964,
0.03192906454205513,
0.05607907474040985,
-0.031840045005083084,
0.00009324905113317072,
-0.10342288017272949,
-0.04718755930662155,
0.05981013551354408,
-0.04973140358924866,
0.041432544589042664,
0.012226274237036705,
0.09971916675567627,
-0.053140830248594284,
-0.008159738034009933,
0.06626038253307343,
-0.030486952513456345,
0.029263935983181,
-0.011202900670468807,
0.04116639494895935,
-0.052947256714105606,
-0.028479671105742455,
0.015762457624077797,
-0.021276619285345078,
-0.014495297335088253,
-0.011688063852488995,
-0.08281254768371582,
-0.09001991897821426,
-0.01969851925969124,
0.012671847827732563,
0.07738476991653442,
0.0529145747423172,
-0.04652135819196701,
0.06008505821228027,
-0.09100755304098129,
-0.02033129893243313,
0.025175392627716064,
0.011039572767913342,
-0.0009556502336636186,
0.08321940898895264,
0.02213395945727825,
0.017310159280896187,
0.035240210592746735,
-0.020907679572701454,
-0.10058729350566864,
-0.07573205232620239,
0.011558035388588905,
-0.08575711399316788,
-0.029480617493391037,
0.10767526924610138,
-5.425310689588514e-8,
0.027632253244519234,
0.013018248602747917,
-0.05743895843625069,
0.02085249312222004,
0.0317501462996006,
-0.015620668418705463,
0.029249954968690872,
0.04696977138519287,
0.09948563575744629,
-0.021909886971116066,
0.0019245700677856803,
-0.10988657176494598,
-0.0134210716933012,
0.0005124674062244594,
0.05524243414402008,
-0.06136273220181465,
-0.042210616171360016,
0.03672740235924721,
-0.08174066990613937,
-0.012429632246494293,
0.01988358423113823,
0.018771758303046227,
0.06533215939998627,
-0.1085594892501831,
-0.00408515427261591,
-0.023652369156479836,
-0.020916568115353584,
0.07644309848546982,
0.04348016902804375,
-0.08511102199554443,
-0.0663260966539383,
-0.06636320799589157,
-0.011991550214588642,
0.021046215668320656,
0.005678428802639246,
0.10750261694192886,
-0.051381394267082214,
0.02596830017864704,
0.1201796680688858,
0.07245161384344101,
-0.0288858525454998,
-0.12741923332214355,
0.03664018586277962,
0.066656194627285,
-0.01148771308362484,
-0.029072308912873268,
0.0486803762614727,
-0.04589107632637024,
-0.007603927981108427,
0.005517862271517515,
-0.03575952351093292,
-0.024354347959160805,
-0.007973549887537956,
-0.1266254484653473,
-0.016115207225084305,
0.023734182119369507,
-0.024134766310453415,
-0.029879676178097725,
-0.018727576360106468,
0.05179169774055481,
0.08911324292421341,
-0.06591435521841049,
-0.13849641382694244,
0.032587941735982895
] | 14,311 |
14,314 |
Detection of radio emission from SN 2020acat with the upgraded GMRT
|
Poonam Chandra (NCRA-TIFR), Peter Lundqvist (Stockholm University), Miguel Perez-Torres (IAA-CSIC, Granada) and Stuart Ryder (Macquarie University)
|
We observed the Type IIb supernova SN 2020acat (TNS AstroNotes 2020-248, 2020-249) in PGC 037027 with the upgraded Giant Metrewave Radio Telescope (uGMRT) on 2020 Jan 06.14 UT in band 5 (1000 - 1450 MHz) at a central frequency of 1255 MHz. We detect the radio emission at the supernova position with a preliminary flux density of 254+/-30 uJy. More observations are planned. The supernova position from our radio measurements is RA, Dec (J2000): 11 50 41.23, -10 13 38.94. Our detection at 1.3 GHz along with the high frequency ATCA measurements (ATel #14270) suggest that the SN is still in its rising/optically thick phase. We thank the staff of the GMRT that made these observations possible. GMRT is run by the National Centre for Radio Astrophysics of the Tata Institute of Fundamental Research
|
2021-01-12 17:51:00
|
radio,supernovae,transient
|
2021-01-12
|
17:51:00
| 799 |
[
-0.07445172965526581,
-0.06429693847894669,
-0.02967638522386551,
0.01994273252785206,
0.021232936531305313,
-0.004592685028910637,
-0.028434965759515762,
-0.024879446253180504,
-0.10229498147964478,
-0.016770055517554283,
-0.03929826617240906,
-0.0037967110984027386,
-0.011722395196557045,
-0.024461762979626656,
0.0355648510158062,
-0.03687143325805664,
0.07815170288085938,
-0.15491780638694763,
0.0518389493227005,
0.026706868782639503,
-0.011693812906742096,
0.04327869787812233,
-0.060017768293619156,
-0.009226880967617035,
0.040703434497117996,
-0.06348613649606705,
-0.05080820620059967,
-0.06162114441394806,
-0.004230852704495192,
-0.0003802035644184798,
0.08769482374191284,
0.07528766989707947,
-0.020257797092199326,
0.05492491275072098,
-0.030097603797912598,
-0.06500706076622009,
0.06574723869562149,
0.011257137171924114,
-0.0027514277026057243,
-0.04810511693358421,
0.031600914895534515,
-0.05322858318686485,
-0.047724559903144836,
0.036180876195430756,
0.02066800557076931,
-0.00368964159861207,
-0.04043314978480339,
-0.06540549546480179,
-0.07196543365716934,
0.005805748049169779,
0.04159688949584961,
-0.04809342697262764,
0.044002119451761246,
0.05005338788032532,
0.06368338316679001,
0.003753079567104578,
-0.021893231198191643,
-0.051591288298368454,
0.0785074234008789,
0.029007650911808014,
0.014145741239190102,
-0.07412208616733551,
-0.08151090145111084,
-0.07952400296926498,
0.086301289498806,
0.04592783376574516,
-0.03205033391714096,
-0.02050415612757206,
0.023432103917002678,
-0.010747875086963177,
0.07761229574680328,
-0.004323139321058989,
-0.026277044788002968,
0.011143309995532036,
-0.025368472561240196,
0.008833830244839191,
0.0920453816652298,
0.04785337299108505,
0.06519556790590286,
-0.06396288424730301,
-0.011164632625877857,
-0.027572236955165863,
0.01905060186982155,
-0.058397650718688965,
-0.0471111461520195,
-0.01601714827120304,
-0.049473632127046585,
0.09283650666475296,
-0.014865254983305931,
0.0423709936439991,
0.02157345972955227,
0.039482731372117996,
-0.05752372369170189,
0.042555663734674454,
0.044521939009428024,
0.08207125216722488,
0.027310267090797424,
-0.027455022558569908,
0.07661157101392746,
0.037561096251010895,
0.09041666239500046,
0.02103538252413273,
-0.07214874029159546,
0.05821770057082176,
-0.05173074081540108,
0.004615778103470802,
0.03392093628644943,
0.0201442688703537,
-0.032323211431503296,
0.028675459325313568,
0.06733636558055878,
0.03032463602721691,
-0.03123629279434681,
-0.08512935042381287,
-0.016003796830773354,
0.037540946155786514,
0.023045796900987625,
0.14021888375282288,
-0.06186007708311081,
-0.04464840516448021,
-0.07632134854793549,
0.10572794824838638,
-0.06420878320932388,
0.06422156095504761,
0.03185158967971802,
0.041112691164016724,
-0.10009469836950302,
6.254506424349901e-33,
-0.0005981660797260702,
0.04541411250829697,
-0.042433686554431915,
0.02859257534146309,
-0.03554050996899605,
0.011719790287315845,
-0.014465833082795143,
0.04972458630800247,
0.021828627213835716,
0.011862155981361866,
-0.027235638350248337,
0.0332459919154644,
-0.04389703646302223,
-0.03986221179366112,
-0.04026084020733833,
-0.058274779468774796,
0.02660033479332924,
-0.04815756529569626,
-0.05742964148521423,
0.015794383361935616,
-0.04455545172095299,
-0.005815170705318451,
-0.006589348893612623,
-0.04039020836353302,
0.0327754020690918,
-0.018267745152115822,
0.07643673568964005,
-0.01913836970925331,
0.03629640117287636,
0.055217672139406204,
-0.014858273789286613,
-0.04594383388757706,
-0.00013584524276666343,
0.059200871735811234,
-0.006980793550610542,
-0.09584273397922516,
-0.014362940564751625,
0.05986342951655388,
-0.04944344609975815,
0.01762857288122177,
0.10563402622938156,
0.027784230187535286,
-0.04613596573472023,
0.05766460672020912,
0.060772862285375595,
-0.029844040051102638,
0.04821953922510147,
0.05258088558912277,
0.021064387634396553,
0.034614160656929016,
-0.02545478194952011,
-0.002625051885843277,
-0.12284817546606064,
0.01271394919604063,
0.0270247720181942,
0.09377505630254745,
0.07046077400445938,
0.036968570202589035,
0.023976655676960945,
-0.006048336159437895,
0.07630491256713867,
-0.06493688374757767,
0.04710804671049118,
0.05361494794487953,
-0.017072204500436783,
0.033324990421533585,
-0.01903342828154564,
0.018287507817149162,
0.004485094454139471,
-0.030713070183992386,
-0.013366157189011574,
0.06458181142807007,
0.15034541487693787,
-0.02620752528309822,
0.04502930864691734,
-0.04617045447230339,
0.0831558033823967,
0.06899752467870712,
-0.0030891930218786,
0.06857099384069443,
-0.04855191707611084,
-0.003352187108248472,
0.044049374759197235,
-0.07083584368228912,
-0.010693871416151524,
-0.03479370102286339,
-0.037129200994968414,
-0.05150793120265007,
-0.008766114711761475,
-0.03313561901450157,
0.01724628359079361,
0.004076815210282803,
0.04427153989672661,
0.01999945007264614,
-0.06986162066459656,
-5.8461639314452244e-33,
0.034259457141160965,
0.006257564295083284,
0.0225380789488554,
-0.0016370705561712384,
-0.021656746044754982,
0.014279568567872047,
0.021842993795871735,
0.06432601064443588,
-0.11234232038259506,
-0.002744152909144759,
0.07979755848646164,
0.06097141280770302,
-0.007605158723890781,
-0.10268504172563553,
-0.0016003621276468039,
-0.04599235951900482,
0.08732704073190689,
0.07705256342887878,
-0.012743489816784859,
-0.0450114831328392,
-0.0017131585627794266,
0.014525963924825191,
0.016540775075554848,
0.03327314928174019,
0.0278336014598608,
-0.02087593264877796,
0.061718087643384933,
0.05099968612194061,
0.002378935692831874,
0.050803497433662415,
-0.04406885430216789,
-0.012575389817357063,
-0.0044193691574037075,
0.0059728967025876045,
0.01241278275847435,
-0.002014961326494813,
0.0991051197052002,
-0.010244806297123432,
-0.08673851191997528,
0.0057587590999901295,
-0.040066152811050415,
0.08508367091417313,
-0.060132138431072235,
0.01117656659334898,
-0.043595749884843826,
0.01879691705107689,
-0.018790332600474358,
0.07120388746261597,
0.050365567207336426,
-0.07687315344810486,
0.07077588140964508,
-0.07721111923456192,
0.008566107600927353,
0.07147684693336487,
0.003349587321281433,
0.050368860363960266,
0.07634580880403519,
0.040456656366586685,
-0.05427899211645126,
-0.023846076801419258,
0.06399507075548172,
-0.03380207344889641,
0.013330940157175064,
-0.0640251412987709,
0.05955660715699196,
-0.020123204216361046,
0.036018822342157364,
0.010818922892212868,
-0.0030328971333801746,
0.044466082006692886,
-0.05242682620882988,
-0.0690760537981987,
-0.11102154850959778,
-0.015192980878055096,
0.019500719383358955,
0.08055867999792099,
0.0474957600235939,
-0.045002542436122894,
0.016131408512592316,
-0.06746742874383926,
-0.03053419291973114,
0.03338637948036194,
-0.017069121822714806,
-0.00823474396020174,
0.1355452984571457,
-0.004495793953537941,
-0.0003883796453010291,
0.0006666150293312967,
-0.02682197093963623,
-0.05158638954162598,
-0.04758249223232269,
0.02568143978714943,
-0.0749816820025444,
-0.039544034749269485,
0.07085975259542465,
-5.319498797007327e-8,
0.008544528856873512,
-0.043518248945474625,
-0.06700141727924347,
-0.009145116433501244,
0.0523756705224514,
-0.039910733699798584,
-0.031794678419828415,
-0.02476881816983223,
0.05980852246284485,
-0.026753265410661697,
-0.020840464159846306,
-0.08266076445579529,
0.019381802529096603,
-0.05278024822473526,
0.07029508799314499,
-0.08154383301734924,
-0.01469526719301939,
-0.06602029502391815,
-0.03868129104375839,
0.005145267117768526,
0.016489069908857346,
0.034184399992227554,
0.08641587942838669,
-0.042537834495306015,
0.01713377609848976,
-0.021564889699220657,
-0.03580644726753235,
0.10166789591312408,
0.03846326097846031,
-0.05360186845064163,
-0.035168472677469254,
-0.049682825803756714,
-0.07645729184150696,
-0.02825991064310074,
-0.0910721942782402,
0.04646698012948036,
0.026367012411355972,
-0.002333372598513961,
0.12241437286138535,
0.05562243610620499,
0.0037823347374796867,
-0.07165583968162537,
0.012527275830507278,
0.0621592178940773,
-0.06721775233745575,
-0.018619611859321594,
0.020334862172603607,
-0.010907940566539764,
-0.009767354466021061,
-0.008903940208256245,
-0.014997272752225399,
0.001527561224065721,
-0.0011004583211615682,
-0.12812800705432892,
-0.04639715328812599,
0.038142889738082886,
-0.06348472088575363,
-0.04280554875731468,
-0.02437693439424038,
0.06502994894981384,
0.09340032935142517,
-0.0756547600030899,
-0.13200554251670837,
-0.029826214537024498
] | 14,312 |
14,315 |
Search for counterpart to AMON IC_HAWC NuEm-210111A with ANTARES
|
Alexis Coleiro (APC/Universite de Paris) and Damien Dornic (CPPM/CNRS) on behalf of the ANTARES Collaboration
|
Using data from the ANTARES detector, we have performed a follow-up analysis of the recently reported AMON IC-HAWC coincidence alert NuEm-210111A (https://gcn.gsfc.nasa.gov/gcn3/29287.gcn3). No up-going muon neutrino candidate events were detected within 3 degrees from the coincidence coordinates over a time period [10h16 - 13h06 UTC] corresponding to 45% of the HAWC transit time mentioned in the AMON notice, during which the potential source remained visible in the up-going field of view of ANTARES. This leads to a preliminary 90% confidence level upper limit on the muon neutrino radiant fluence from a point source located at the coordinates of the coincidence as reported by AMON, of about 14 GeV.cm^-2 over the energy range 5 TeV - 5 PeV (the range corresponding to 5-95% of the detectable flux) for an E^-2 power-law spectrum, and about 35 GeV.cm^-2 (1 - 480 TeV) for an E^-2.5 spectrum. These indicative limits have been computed for the end of the HAWC transit time. A search over an extended time window of +/-1 day has also yielded no detection (39% visibility). ANTARES is the largest undersea neutrino detector (Mediterranean Sea) and it is primarily sensitive to astrophysical neutrinos in the TeV-PeV energy range. At 10 TeV, the median angular resolution for muon neutrinos is about 0.5 degrees. In the range 1-100 TeV ANTARES has a competitive sensitivity to this position in the sky.
|
2021-01-12 22:35:00
|
tev,neutrinos,transient
|
2021-01-12
|
22:35:00
| 1,406 |
[
-0.1352543979883194,
0.0019229340832680464,
0.0507238544523716,
0.06874363124370575,
0.10221405327320099,
-0.09113140404224396,
0.025813953951001167,
0.051430121064186096,
0.030826030299067497,
-0.006042507477104664,
-0.016340862959623337,
0.00929062720388174,
-0.05607210099697113,
-0.024749089032411575,
0.008351357653737068,
-0.0014883928233757615,
0.035631801933050156,
-0.05208948254585266,
-0.0244663804769516,
0.03680414706468582,
0.016031019389629364,
-0.02115090750157833,
0.007775283418595791,
0.035804007202386856,
0.012391370721161366,
-0.10573095083236694,
0.0576600506901741,
-0.002700862940400839,
0.03804125264286995,
0.03553139418363571,
-0.01612047106027603,
0.03120204247534275,
-0.003075090702623129,
0.046054866164922714,
0.009457403793931007,
-0.016089219599962234,
0.04857534542679787,
-0.05823620781302452,
0.045369960367679596,
-0.014503808692097664,
0.06022312864661217,
-0.012401815503835678,
0.006483270321041346,
-0.026161624118685722,
-0.07788863778114319,
-0.023254049941897392,
0.0700727179646492,
-0.05326380580663681,
-0.059593316167593,
0.022327573969960213,
-0.010431152768433094,
0.02652023918926716,
-0.0008395629120059311,
-0.050678569823503494,
-0.018512975424528122,
0.029810771346092224,
-0.04591719061136246,
-0.08303268998861313,
0.0332188718020916,
0.04770488664507866,
-0.020776256918907166,
-0.004278050269931555,
-0.05599279701709747,
-0.04424681514501572,
0.05958135426044464,
0.0011760327033698559,
-0.03613685816526413,
0.01619654893875122,
0.05975659191608429,
-0.002639240585267544,
0.05857773870229721,
0.02988218516111374,
-0.04051605612039566,
-0.1093507632613182,
-0.008608818054199219,
0.10816095024347305,
0.10566331446170807,
0.058119382709264755,
0.01933209039270878,
-0.026524685323238373,
0.0017242799513041973,
-0.03116266243159771,
0.025005310773849487,
-0.06973426789045334,
0.060795288532972336,
-0.005819494370371103,
-0.048446349799633026,
0.16228985786437988,
-0.00848208088427782,
-0.010932283475995064,
-0.009389279410243034,
-0.04014286771416664,
-0.0347747839987278,
0.05651691183447838,
0.04441819339990616,
0.10226433724164963,
0.023274492472410202,
0.027614591643214226,
0.014473866671323776,
0.05317070707678795,
0.04018513858318329,
0.05507435277104378,
0.016844281926751137,
0.09151999652385712,
-0.03334495797753334,
0.03466430678963661,
0.03797965496778488,
-0.027606839314103127,
0.03650509566068649,
0.010447097010910511,
-0.004670156165957451,
0.023355070501565933,
0.02903176099061966,
-0.037083424627780914,
0.014446464367210865,
0.035163916647434235,
-0.09434466809034348,
0.12326706945896149,
0.020305519923567772,
-0.054340459406375885,
0.005014271475374699,
0.012260138057172298,
0.008825499564409256,
0.03312589228153229,
0.04468218609690666,
0.028604160994291306,
-0.020317882299423218,
7.06570772901267e-33,
0.039615239948034286,
0.060942232608795166,
-0.06740766763687134,
0.008191066794097424,
-0.033873021602630615,
0.017578676342964172,
-0.06064964458346367,
-0.00676947645843029,
-0.07765684276819229,
0.05221462622284889,
0.006160863675177097,
0.004192424938082695,
0.03993556648492813,
-0.017206495627760887,
-0.13468040525913239,
-0.03361004963517189,
0.07970020920038223,
-0.025610171258449554,
-0.04298391565680504,
0.033170830458402634,
-0.010980234481394291,
-0.06190726161003113,
-0.06646455824375153,
-0.015283757820725441,
-0.010572423227131367,
0.04159306734800339,
-0.10039158910512924,
0.07804989814758301,
-0.0426504984498024,
-0.013464652933180332,
0.04043518379330635,
0.0358319915831089,
0.048251017928123474,
0.07790996134281158,
-0.06815897673368454,
-0.039312660694122314,
-0.05721057578921318,
-0.0318332314491272,
-0.03938644006848335,
-0.037256594747304916,
0.03795626759529114,
0.08417892456054688,
-0.08228177577257156,
-0.03112740069627762,
0.04837387055158615,
-0.03919772058725357,
0.021725498139858246,
-0.001185002038255334,
0.07280804961919785,
0.027175404131412506,
-0.0824127346277237,
0.006843884475529194,
-0.029881874099373817,
-0.05470699071884155,
0.027975723147392273,
-0.04244782403111458,
-0.003421865403652191,
0.01598440296947956,
0.11169368028640747,
0.011745063588023186,
0.008286865428090096,
-0.06215542554855347,
0.017623502761125565,
-0.006900209002196789,
0.005376635584980249,
0.08847274631261826,
-0.08809024840593338,
-0.039882078766822815,
0.05626034736633301,
0.1600271463394165,
0.04596523940563202,
0.08995229750871658,
-0.0558670274913311,
-0.06753233075141907,
-0.0051863668486475945,
-0.056902993470430374,
0.034805089235305786,
0.023520780727267265,
0.02631847746670246,
0.09157247096300125,
-0.015288063324987888,
-0.0244493018835783,
0.04799894988536835,
-0.010565673001110554,
-0.0798744484782219,
-0.009048244915902615,
-0.03835304453969002,
0.010396439582109451,
-0.058581896126270294,
0.009385650977492332,
0.07142292708158493,
-0.0037188122514635324,
0.02648191712796688,
0.013008588925004005,
-0.07321351766586304,
-4.875905016804754e-33,
0.010487187653779984,
0.05073823407292366,
-0.024147531017661095,
0.001797099714167416,
-0.11184167116880417,
0.06591670215129852,
0.07158831506967545,
0.01596287451684475,
-0.036207955330610275,
-0.04997779056429863,
0.02448883280158043,
-0.002206997014582157,
0.001646979246288538,
-0.1319226771593094,
0.042125362902879715,
0.025622621178627014,
0.10503105074167252,
0.0275984276086092,
0.04613944888114929,
0.0290315430611372,
0.057347800582647324,
-0.021549053490161896,
-0.06817347556352615,
-0.06227833405137062,
0.04287644103169441,
0.019481899216771126,
0.06414847075939178,
-0.06687179207801819,
-0.07373413443565369,
-0.07139024883508682,
-0.11782615631818771,
0.07596341520547867,
0.012019949965178967,
0.010357426479458809,
0.010867536999285221,
-0.011819839477539062,
0.0360218770802021,
0.05540913715958595,
-0.07896988093852997,
-0.06071086227893829,
0.0011367422994226217,
0.15459102392196655,
-0.03519183024764061,
0.03247431293129921,
-0.0587627999484539,
0.07601378113031387,
0.02081490121781826,
0.07875553518533707,
-0.009145866148173809,
0.013336017727851868,
-0.04543142393231392,
-0.03371161222457886,
-0.029715711250901222,
0.012534325942397118,
0.045925579965114594,
0.053526584059000015,
-0.015261942520737648,
-0.019873371347784996,
-0.01090293936431408,
-0.07416797429323196,
-0.000215513922739774,
-0.0230654776096344,
-0.03881377726793289,
-0.059709444642066956,
0.08034826815128326,
0.060580190271139145,
-0.011564395390450954,
0.04130176082253456,
0.0399368479847908,
0.07223381847143173,
0.03999447077512741,
0.010054170154035091,
-0.06369912624359131,
-0.09617763757705688,
-0.02509034238755703,
0.04743695259094238,
0.04590986296534538,
-0.07782161980867386,
-0.03730050474405289,
-0.03427276015281677,
-0.052118826657533646,
-0.007483612280339003,
-0.036119069904088974,
-0.010242946445941925,
0.03427411615848541,
0.060580063611269,
-0.007032147608697414,
-0.018610795959830284,
0.03444746881723404,
0.019078971818089485,
-0.05904899537563324,
0.015972135588526726,
-0.03164450824260712,
0.0011504644062370062,
0.010526438243687153,
-5.3176488989947757e-8,
0.015001356601715088,
0.013876247219741344,
-0.11117681115865707,
0.017267953604459763,
0.05450490117073059,
0.007937325164675713,
0.0162114966660738,
0.020271314308047295,
-0.07383103668689728,
0.07607794553041458,
0.010246540419757366,
-0.021971378475427628,
0.0022583166137337685,
-0.08152908086776733,
0.06940145045518875,
-0.0431239977478981,
-0.011684385128319263,
-0.035291824489831924,
-0.047505248337984085,
0.01379122119396925,
0.06919383257627487,
0.06595659255981445,
0.02484614960849285,
-0.005368919111788273,
0.005741840228438377,
0.045765168964862823,
0.010326121002435684,
0.0533311665058136,
0.029652072116732597,
-0.07584569603204727,
-0.06689797341823578,
-0.10877819359302521,
0.04909127950668335,
-0.05470110476016998,
-0.016635946929454803,
0.02612348645925522,
0.005427411757409573,
0.010697583667933941,
0.04181012883782387,
-0.010080237872898579,
0.04041405767202377,
-0.04156925901770592,
0.0484069399535656,
0.05359113588929176,
-0.0584181509912014,
0.017504796385765076,
-0.011645229533314705,
-0.1105726882815361,
0.035289134830236435,
-0.019961971789598465,
-0.018776917830109596,
0.00681656738743186,
-0.03866061195731163,
-0.013739223591983318,
-0.03212813287973404,
0.003538716584444046,
0.011244585737586021,
-0.020687583833932877,
-0.007137581240385771,
-0.012249414809048176,
0.11120440065860748,
-0.05583455041050911,
-0.14759209752082825,
-0.07032007724046707
] | 14,313 |
14,316 |
Gaia20fnr/AT2020ably is bright microlensing event based on LT/SPRAT and Gemini/GMOS-N spectra
|
Zielinski P., Gezer I., Gromadzki M., Wyrzykowski L., Lam M. C., Ihanec N., Kruszynska K., Rybicki K. A. (Astronomical Observatory, University of Warsaw), Maskoliunas M., Zdanavicius J., Pakstiene E. (Institute of Theoretical Physics and Astronomy, Vilnius University), Hodgkin S. (Institute of Astronomy, University of Cambridge)
|
We report on spectroscopic observations of Gaia20fnr (AT2020ably) which was detected primarily by the Gaia Science Alerts programme (http://gsaweb.ast.cam.ac.uk/alerts) on 2020-12-02 at discovery magnitude G=12.91. First spectrum were taken on 2020-12-23 with 2-m Liverpool Telescope (LT) equipped with the Spectrograph for the Rapid Acquisition of Transients (SPRAT, Piascik et al. 2014) in the optical part of electromagnetic window (400-800 nm) and low-resolution mode (R~350). The second spectrum for this target has been obtained on 2021-01-09 by using 8-m Gemini/GMOS-N instrument (Gemini Multi-Object Spectrographs, Hook et al. 2002) in long-slit mode with gratings R400 which provides resolution power of R~2000 and covers the wavelength range from 400 to 900 nm. In both spectra, we observe absorption lines of Balmer series and no clear emission is detectable. In addition, thanks to wavelength coverage of GMOS, Ca II triplet is visible. Continuum shapes and observed lines suggest spectral type F-G. Based on this, we classify Gaia20fnr as bright microlensing event. Therefore, the brightening observed in its light curve should be assigned to this phenomena. More photometric and spectroscopic data will be appreciated. The spectra and detailed information can be found here: https://www.wis-tns.org/object/2020ably.
Acknowledgments. We thank LT Support Astronomers for help with observations and data reduction. Observations were carried out under OPTICON programme XOL20B01 (PI: P. Zielinski). We also thank Gemini Support Astronomers for help with observations which were carried out under the GN-2020B-Q-318 program. (PI: I. Gezer). This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 730890. We are supported by Polish NCN DAINA grant 2017/27/L/ST9/03221 and Research Council of Lithuania grant No. S-LL-19-2. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council. This work was enabled by observations made from the Gemini North telescope, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation on behalf of the Gemini Observatory partnership: the National Science Foundation (United States), National Research Council (Canada), Agencia Nacional de Investigacion y Desarrollo (Chile), Ministerio de Ciencia, Tecnologia e Innovacion (Argentina), Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (Brazil), and Korea Astronomy and Space Science Institute (Republic of Korea) and located within the Maunakea Science Reserve and adjacent to the summit of Maunakea. We are grateful for the privilege of observing the Universe from a place that is unique in both its astronomical quality and its cultural significance. We acknowledge ESA Gaia, DPAC and the Photometric Science Alerts Team (http://gsaweb.ast.cam.ac.uk/alerts).
|
2021-01-12 22:45:00
|
optical,microlensing event,transient
|
2021-01-12
|
22:45:00
| 3,148 |
[
-0.07865438610315323,
-0.052546676248311996,
-0.0815839096903801,
0.050249528139829636,
0.04215041548013687,
-0.04772287234663963,
0.017114214599132538,
-0.04312209039926529,
-0.02829483523964882,
0.036286499351263046,
0.04189099371433258,
-0.015311339870095253,
-0.02023247815668583,
-0.0025861477479338646,
0.04679363593459129,
-0.02561948448419571,
0.05877535790205002,
-0.11266693472862244,
-0.048953909426927567,
0.04070860147476196,
0.008145354688167572,
0.05606688931584358,
-0.04421979561448097,
0.0027860167901962996,
-0.002867915201932192,
-0.051597461104393005,
-0.017555244266986847,
-0.051789041608572006,
0.01869885064661503,
0.016033701598644257,
0.025075122714042664,
0.09251120686531067,
-0.038875285536050797,
0.060615576803684235,
0.010859185829758644,
-0.05570781230926514,
0.062232568860054016,
-0.032576702535152435,
0.06942280381917953,
0.021014658734202385,
-0.004782792646437883,
-0.09570105373859406,
-0.05243443325161934,
-0.031183278188109398,
-0.022095937281847,
-0.004063466563820839,
-0.00016683840658515692,
-0.07144559919834137,
-0.09675346314907074,
-0.020974045619368553,
-0.01542749535292387,
0.004799839574843645,
-0.011035009287297726,
-0.008857387118041515,
0.03743376582860947,
0.03911702334880829,
-0.07258615642786026,
-0.09270695596933365,
0.03771243989467621,
0.083586685359478,
-0.022131405770778656,
-0.05946065112948418,
-0.038960907608270645,
-0.05094665288925171,
0.00663725147023797,
0.056459758430719376,
0.034972015768289566,
-0.11990904062986374,
0.058666832745075226,
-0.019865121692419052,
-0.016626592725515366,
0.03755516931414604,
0.002080703852698207,
-0.05017787218093872,
-0.012413905933499336,
0.09586378931999207,
0.025044308975338936,
0.06581704318523407,
0.10007417947053909,
-0.06596557050943375,
0.048488955944776535,
-0.03710421174764633,
0.04591359198093414,
-0.021956410259008408,
0.007344227284193039,
-0.002967496169731021,
-0.008636169135570526,
0.10546804219484329,
-0.04137641191482544,
-0.030697304755449295,
0.032512277364730835,
-0.015348588116466999,
-0.03612647205591202,
0.032025765627622604,
-0.036095041781663895,
0.018671583384275436,
0.03931068629026413,
-0.09380912780761719,
0.05829225853085518,
0.0306937787681818,
0.06042749434709549,
0.002950974041596055,
-0.01154049951583147,
0.08508364856243134,
-0.13775429129600525,
0.02548307366669178,
0.06890089064836502,
0.033368274569511414,
-0.052686240524053574,
0.016758019104599953,
0.04680183157324791,
0.06317513436079025,
-0.058467283844947815,
-0.0774628147482872,
-0.01666855439543724,
0.0399184376001358,
-0.03682277724146843,
0.12138060480356216,
-0.04842402786016464,
-0.04016444832086563,
0.0023527867160737514,
0.028695574030280113,
-0.0620146282017231,
0.08137267827987671,
0.015458076260983944,
0.08007404208183289,
-0.08845357596874237,
3.8961763931424566e-33,
0.06630197912454605,
0.041257839649915695,
-0.05081721767783165,
0.010503632947802544,
-0.017721641808748245,
0.10721836239099503,
-0.06494724005460739,
0.0386357456445694,
-0.0037255287170410156,
0.0017177246045321226,
-0.030355636030435562,
0.07200568914413452,
0.014260546304285526,
-0.05965500697493553,
-0.04496600478887558,
0.08146537095308304,
-0.00850444845855236,
0.01571485958993435,
-0.034916672855615616,
0.008919792249798775,
0.03911076486110687,
0.04217204079031944,
0.01622188463807106,
-0.037394918501377106,
0.004085898865014315,
0.0788755789399147,
0.0017282236367464066,
-0.08657944947481155,
-0.037828776985406876,
0.02667657844722271,
0.01581982895731926,
-0.05160384625196457,
-0.0725407600402832,
0.037262558937072754,
-0.02087436430156231,
-0.09110721200704575,
-0.021023979410529137,
-0.0067837899550795555,
-0.04267797991633415,
-0.09816882014274597,
0.005158632528036833,
0.10877801477909088,
-0.03179764375090599,
0.029783448204398155,
0.0037223913241177797,
-0.008940884843468666,
0.06346398591995239,
0.016514986753463745,
0.0588848777115345,
0.03442833200097084,
-0.0420120507478714,
-0.04983806237578392,
-0.099159374833107,
0.020817050710320473,
-0.022463811561465263,
0.046085696667432785,
0.041347019374370575,
-0.018752794712781906,
0.07509804517030716,
-0.02921716682612896,
0.0429782010614872,
0.028411831706762314,
0.04644734412431717,
-0.024009546265006065,
-0.033762186765670776,
0.0970807671546936,
-0.05571039021015167,
-0.0064293621107935905,
-0.03516242653131485,
0.09525315463542938,
0.03500999137759209,
0.05460133031010628,
0.08282916247844696,
-0.012737249955534935,
0.05981963872909546,
-0.041543275117874146,
0.07009557634592056,
0.018268760293722153,
-0.016681980341672897,
0.09482873231172562,
-0.09183619916439056,
0.015707895159721375,
0.027836408466100693,
-0.0033155689015984535,
-0.07994941622018814,
-0.028296684846282005,
-0.06920518726110458,
0.01168064959347248,
-0.02520233951508999,
-0.05147076025605202,
0.030687324702739716,
0.03738756105303764,
-0.020156562328338623,
-0.008405974134802818,
-0.08133796602487564,
-4.6338046084132115e-33,
0.07572249323129654,
0.008684900589287281,
0.005156579427421093,
0.00947169866412878,
-0.01571686565876007,
-0.06426163762807846,
0.01695173978805542,
0.0075304885394871235,
-0.04586394131183624,
-0.017295261844992638,
0.10504040867090225,
0.08131799846887589,
-0.01380104012787342,
-0.07180205732584,
-0.0031168831046670675,
-0.07847275584936142,
-0.0007526761037297547,
-0.022519560530781746,
0.0365489162504673,
-0.006678976118564606,
0.031863827258348465,
-0.03927881643176079,
0.04171891510486603,
-0.06524359434843063,
0.06323540955781937,
0.013762742280960083,
0.102784663438797,
-0.08753188699483871,
-0.08388072997331619,
0.0019791696686297655,
-0.049153536558151245,
0.02753193862736225,
-0.019484924152493477,
-0.03784099966287613,
0.05994551628828049,
-0.016467738896608353,
0.06019660830497742,
-0.030802691355347633,
-0.12677782773971558,
-0.06415450572967529,
-0.07741005718708038,
0.14763733744621277,
0.04197625815868378,
0.0450761616230011,
-0.020270584151148796,
0.007633435074239969,
0.04514561966061592,
0.07726599276065826,
0.015005497261881828,
-0.008775233291089535,
0.0786285474896431,
0.0049742646515369415,
-0.04996291920542717,
0.005280737765133381,
0.01133306697010994,
0.05092015489935875,
0.010372186079621315,
0.023363126441836357,
-0.05087634548544884,
0.04181597754359245,
0.03122495859861374,
-0.03036109171807766,
-0.05230803042650223,
-0.054229751229286194,
0.06080927699804306,
0.07291828095912933,
0.07310618460178375,
0.10715103894472122,
0.03396189957857132,
0.06472901254892349,
0.015437453053891659,
-0.06616823375225067,
-0.044570647180080414,
0.024314066395163536,
0.02763095311820507,
0.06457012891769409,
-0.03518297150731087,
-0.0837361067533493,
0.06495758891105652,
0.023251552134752274,
0.0437081940472126,
-0.005962924100458622,
-0.02578933909535408,
0.043530598282814026,
0.07638588547706604,
-0.04349830746650696,
-0.05500536039471626,
0.01825643703341484,
0.015617193654179573,
-0.06519494205713272,
-0.0315154567360878,
0.01974956877529621,
-0.03983733803033829,
-0.008508074097335339,
0.06737135350704193,
-5.873941333334187e-8,
-0.03796634078025818,
0.039624206721782684,
-0.03247871994972229,
-0.03787466883659363,
0.08011569827795029,
-0.07704539597034454,
-0.046074870973825455,
0.006169882137328386,
0.050169721245765686,
-0.02801310457289219,
0.0365225151181221,
-0.03386657312512398,
-0.008728153072297573,
0.009759997017681599,
0.02643081359565258,
-0.04626580700278282,
-0.048978351056575775,
-0.0425102524459362,
-0.022290067747235298,
0.07079101353883743,
0.0475534051656723,
0.009523616172373295,
0.04291122034192085,
-0.043368201702833176,
0.008999359793961048,
-0.0544847808778286,
0.014637588523328304,
0.06491809338331223,
0.02234964817762375,
-0.04465629532933235,
-0.016597889363765717,
-0.051489297300577164,
0.03377152606844902,
0.030663589015603065,
-0.04755720868706703,
0.007012882735580206,
-0.10380742698907852,
0.06555768847465515,
0.03023679181933403,
0.006367754191160202,
-0.03533945605158806,
-0.05679112300276756,
-0.003901873016729951,
0.015451575629413128,
-0.0353655070066452,
0.0011112880893051624,
-0.016290603205561638,
-0.0964692011475563,
0.01138401310890913,
0.024954352527856827,
-0.05620035529136658,
0.0021680768113583326,
0.021421292796730995,
0.02927296981215477,
-0.08974242210388184,
-0.02293401211500168,
-0.019895924255251884,
-0.06053759902715683,
-0.014374599792063236,
-0.002275018719956279,
0.10725297778844833,
-0.0652509331703186,
-0.12523743510246277,
0.014978169463574886
] | 14,314 |
14,317 |
Cen X-4 returns to quiescent levels in X-ray, optical, and UV
|
J. van den Eijnden (Univ. of Oxford), Maria Cristina Baglio (NYU Abu Dhabi), J. Homan (Eureka Scientific & SRON), Payaswini Saikia, David M. Russell, Stefan Waterval, D. M. Bramich (NYU Abu Dhabi), Fraser Lewis (Faulkes Telescope Project & Astrophysics Research Institute, LJMU), P. Roche (Cardiff University)
|
Cen X-4 is a neutron star low-mass X-ray binary located at a close distance of ~1.2 kpc. After its first two outbursts, in 1969 and 1979, it remained in quiescence for more than 40 years. After an initial prediction based on optical monitoring with the Las Cumbres Observatory (LCO; Atel #14254), Cen X-4 was observed to become active in both the optical/UV (ATel #14302) and X-ray bands (ATel #14303). Since then, we have continued monitoring the LMXB with the Neil Gehrels Swift observatory (Swift), the Neutron Star Interior Composition ExploreR (NICER), and LCO in the X-ray, optical, and UV bands.
After the observations reported in ATel #14303, Swift observed Cen X-4 on 7 and 11 January 2021, with both observations taken in PC mode. Using the Swift online data analysis pipeline (Evans et al. 2007, A&A, 469, 379), we extract 0.3-10 keV count rates of 0.312 +/- 0.025 ct/s and 0.079 +/- 0.011 ct/s, respectively. These count rates show a decreasing trend from the Swift peak rate on 4 January; the count rate on 11 January is consistent with the range observed by Swift in quiescence (Tudor et al. 2017, MNRAS, 470, 324).
NICER monitoring confirms this decrease in X-rays. It showed a variable but increasing trend in the 0.5-10 keV count rate up to January 6, peaking at a count rate of 9.17 +/- 0.05 ct/s (all reported NICER rates are daily averages; background (less than 0.5 cts/s) was not subtracted). The count rate then decreased gradually, reaching 2.27 +/- 0.03 ct/s on January 12. The Swift and NICER X-ray light curves can be found at the link below.
Cen X-4 is being monitored in the optical with the Las Cumbres Observatory (LCO) 2-m and 1-m robotic telescopes (see ATel #14302 for details on the monitoring and the analysis of the LCO data). Also at these frequencies, the source shows a decrease of the flux after January 6, going from V=17.43+/-0.03, g'=17.79+/-0.03, i'=16.81+/-0.02, Y=20.87+/-0.05 on January 6 to V=17.99+/-0.05, i'=17.14+/-0.03 on January 7. The most recent observations, performed on January 12, show a further flux decrease, with g'=18.73+/-0.05, r'=17.84+/-0.03, i'=17.43+/-0.04, Y=22.31+/-0.16, thus indicating that Cen X-4 is now back to its quiescent flux level at optical frequencies. Similarly, UV observations performed with Swift/UVOT show a decisive decrease in flux, with an AB magnitude in the UVW2 filter of 20.19 +/- 0.11 and 20.62 +/- 0.12 on January 7 and 11, respectively.
These decreases in X-ray, optical, and UV flux of Cen X-4 suggest a return to previous quiescent levels. It remains, however, unclear how this brief epoch of activity will continue. Possibly, it could be a precursor flare preceding a full outburst, as was observed with XB-NEWS in optical monitoring prior to the 2019 outburst of the neutron star LMXB SAX J1808.4-3658 (Goodwin et al. 2020, MNRAS, 498, 3429). Alternatively, however, Cen X-4 could now remain in quiescence.
We are grateful to the Swift and NICER teams for rapidly approving, scheduling, and performing these observations. We will continue the X-ray, optical, and UV monitoring of Cen X-4 and report on new activity if it arises.
The LCO observations are part of an on-going monitoring campaign of ~ 50 low-mass X-ray binaries (Lewis et al. 2008) with LCO and the Faulkes Telescopes. We acknowledge the support of the NYU Abu Dhabi Research Enhancement Fund under grant RE124.
|
2021-01-13 02:48:00
|
optical,ultra-violet,x-ray,binary,neutron star,star,transient,variables
|
2021-01-13
|
02:48:00
| 3,383 |
[
0.010201523080468178,
-0.07050816714763641,
0.015067028813064098,
-0.028978750109672546,
0.041443102061748505,
-0.024188272655010223,
-0.0160312969237566,
0.04851049929857254,
-0.02490992471575737,
-0.030355218797922134,
0.0373636856675148,
-0.07092177122831345,
0.04201461002230644,
0.002115487353876233,
-0.017948640510439873,
-0.003815434407442808,
0.011701323091983795,
-0.09996353834867477,
0.014429410919547081,
0.019116811454296112,
-0.010839918628334999,
-0.026345787569880486,
0.007051930762827396,
0.030902158468961716,
-0.028718695044517517,
-0.052961476147174835,
-0.0018185304943472147,
-0.10704303532838821,
0.004506969824433327,
-0.02906244434416294,
0.03633677959442139,
0.053974803537130356,
0.003017039503902197,
0.028898747637867928,
0.029552647843956947,
0.01057348307222128,
0.10641072690486908,
-0.05321994051337242,
-0.022150762379169464,
-0.041288990527391434,
0.029609624296426773,
-0.040024302899837494,
0.06856843084096909,
0.0028794484678655863,
0.026876846328377724,
0.009858110919594765,
0.013410360552370548,
-0.115790456533432,
0.004870742559432983,
0.005182747263461351,
0.07037525624036789,
-0.05351325869560242,
0.029904138296842575,
0.03501296043395996,
0.08851433545351028,
0.008514504879713058,
-0.08379367738962173,
-0.047176558524370193,
0.056055277585983276,
0.08149700611829758,
0.07687146216630936,
0.04567734897136688,
-0.011035693809390068,
0.013867502100765705,
0.07316579669713974,
0.07326098531484604,
-0.0067802793346345425,
-0.05635550245642662,
0.007110136561095715,
-0.010169078595936298,
0.025570373982191086,
-0.0018757055513560772,
-0.0034291204065084457,
-0.0008749772678129375,
-0.027279304340481758,
0.03648224100470543,
0.11510385572910309,
-0.03242496773600578,
-0.002109110588207841,
-0.07516129314899445,
-0.014588200487196445,
0.10277891159057617,
-0.020010467618703842,
-0.017925851047039032,
-0.04900715500116348,
-0.0017760207410901785,
-0.029878804460167885,
0.0010316957486793399,
-0.014632899314165115,
0.07368365675210953,
0.08502383530139923,
0.06576588749885559,
-0.06900982558727264,
-0.04843027517199516,
0.07083385437726974,
-0.000881338317412883,
0.08172792196273804,
-0.04193825274705887,
0.09858831018209457,
0.03252660110592842,
0.03973697870969772,
0.07514968514442444,
-0.07751265168190002,
0.023424623534083366,
-0.029287410899996758,
-0.029585642740130424,
0.10267482697963715,
0.0671035647392273,
-0.10522866994142532,
0.052065860480070114,
0.03475916013121605,
-0.03629789128899574,
-0.026951337233185768,
-0.053417809307575226,
-0.0356178879737854,
0.006815733388066292,
-0.001147050061263144,
0.03895861655473709,
-0.047343455255031586,
-0.03481557220220566,
-0.06111500784754753,
0.04554750770330429,
0.004690788686275482,
0.05609309300780296,
-0.0026848900597542524,
0.028292706236243248,
-0.056101229041814804,
2.52355072133231e-33,
0.040732286870479584,
0.057663701474666595,
0.003437139792367816,
-0.013031943701207638,
-0.01969127170741558,
-0.02906385250389576,
0.03727854788303375,
0.09463465958833694,
-0.08489207923412323,
-0.033702898770570755,
-0.008762559853494167,
0.031809110194444656,
-0.007989080622792244,
-0.06929090619087219,
-0.03034701943397522,
-0.061917494982481,
0.03303493186831474,
0.029879191890358925,
-0.04732351377606392,
0.011695954017341137,
-0.0590917244553566,
-0.03154740855097771,
-0.01387679111212492,
0.020209453999996185,
0.00370073807425797,
0.06752017885446548,
-0.01645311526954174,
-0.007060005329549313,
-0.021476900205016136,
0.007544107735157013,
-0.056012291461229324,
-0.0015850821509957314,
0.0034873955883085728,
0.0710010752081871,
-0.023778347298502922,
-0.02028767764568329,
-0.043611615896224976,
0.004477525595575571,
-0.05075811222195625,
0.02060875855386257,
0.041225336492061615,
0.041607942432165146,
0.02016688510775566,
-0.034074898809194565,
0.017955122515559196,
-0.018685679882764816,
-0.001801131060346961,
-0.09382195770740509,
0.03374836593866348,
-0.012603147886693478,
0.05260474234819412,
0.004855453036725521,
-0.08061103522777557,
-0.04180828481912613,
0.055446941405534744,
0.028449786826968193,
0.02007720060646534,
-0.03429095074534416,
-0.04397764056921005,
-0.031868431717157364,
0.03351995348930359,
0.028491947799921036,
-0.09744077920913696,
0.007799325045198202,
0.049177397042512894,
0.10878827422857285,
-0.045089930295944214,
-0.07233662903308868,
-0.071169912815094,
-0.030650245025753975,
-0.0989958792924881,
-0.03954360634088516,
0.10154911130666733,
-0.0901196226477623,
0.1419236809015274,
0.0013772990787401795,
-0.06399723887443542,
0.028357088565826416,
-0.006807432509958744,
0.02399713546037674,
-0.03186875954270363,
-0.018466239795088768,
0.033118490129709244,
-0.05238605663180351,
-0.021750425919890404,
0.03903678432106972,
0.017058251425623894,
0.04191989824175835,
0.06400398164987564,
-0.012831013649702072,
0.02811499871313572,
-0.11671257764101028,
0.0035538498777896166,
-0.03506718575954437,
-0.14001072943210602,
-2.9139812517243476e-33,
-0.025197798386216164,
0.023276450112462044,
0.01850702054798603,
0.054875168949365616,
-0.023995425552129745,
0.004992953035980463,
-0.04268873110413551,
-0.030914826318621635,
-0.02579563856124878,
-0.04528888314962387,
0.09531477093696594,
-0.019376862794160843,
0.021942729130387306,
-0.07303585112094879,
0.05648639425635338,
0.09175129234790802,
-0.023542407900094986,
-0.020333390682935715,
-0.06289288401603699,
-0.00835516955703497,
0.08758283406496048,
0.04458162561058998,
-0.030073249712586403,
-0.0401451401412487,
0.03744099661707878,
0.018104340881109238,
0.1234622448682785,
0.032504189759492874,
0.10064780712127686,
-0.01834717020392418,
-0.15034060180187225,
-0.02903391234576702,
0.01455725822597742,
0.01426197960972786,
-0.021163854748010635,
-0.0664428174495697,
-0.01608254760503769,
0.03041098825633526,
-0.05345426872372627,
0.027807151898741722,
-0.03890259191393852,
0.11419763416051865,
-0.03806625306606293,
0.05869763344526291,
0.001190675189718604,
0.06269948184490204,
0.05105599761009216,
0.06648469716310501,
0.08597459644079208,
0.08086113631725311,
0.04470563679933548,
-0.04129759967327118,
-0.030635325238108635,
0.035047497600317,
-0.03910361975431442,
0.06917193531990051,
-0.031236721202731133,
0.12317761033773422,
0.020440123975276947,
-0.014452697709202766,
0.0002528845507185906,
-0.10184386372566223,
0.08649500459432602,
-0.009395181201398373,
0.01567193865776062,
-0.03956591337919235,
-0.05180371180176735,
0.11130666732788086,
-0.060566652566194534,
-0.05358683690428734,
0.06503061950206757,
-0.0746489092707634,
-0.003189992858096957,
-0.05295644327998161,
-0.0065491036511957645,
-0.00037079016328789294,
-0.039108723402023315,
-0.1339929699897766,
0.006814881693571806,
0.03601168096065521,
-0.04025942459702492,
0.09082257002592087,
0.0434420183300972,
-0.02190377749502659,
0.10855555534362793,
0.06270406395196915,
0.03055594302713871,
0.02695903182029724,
0.006928462069481611,
-0.08361989259719849,
0.007424649782478809,
0.014957175590097904,
0.01599641516804695,
-0.017201315611600876,
0.06805258244276047,
-4.729125890889918e-8,
0.025921907275915146,
0.0733664408326149,
-0.06370267271995544,
0.03178481012582779,
0.023973561823368073,
-0.04024931415915489,
0.02136104740202427,
0.028210904449224472,
0.04547296091914177,
0.01168847642838955,
0.018121207132935524,
-0.028592059388756752,
-0.03700097277760506,
-0.11519719660282135,
0.03640956059098244,
-0.019421763718128204,
-0.04979773983359337,
-0.07792656868696213,
-0.021661268547177315,
0.06395085901021957,
0.015627330169081688,
-0.021386560052633286,
0.015846068039536476,
-0.05719577893614769,
-0.07770662009716034,
0.005706682335585356,
0.027613405138254166,
0.05458018556237221,
0.010048158466815948,
-0.0694064050912857,
-0.06312671303749084,
0.04737380892038345,
-0.0006494948756881058,
-0.05691511556506157,
-0.031259335577487946,
0.02228298969566822,
-0.04750737175345421,
0.008152206428349018,
0.08023575693368912,
0.10959707945585251,
-0.014065525494515896,
-0.06654253602027893,
-0.010991744697093964,
0.04306003823876381,
-0.06764886528253555,
0.046671994030475616,
0.00568434176966548,
-0.028840402141213417,
0.01029004342854023,
0.02004271186888218,
0.0002096813841490075,
0.00019626646826509386,
-0.03192519024014473,
-0.07948052883148193,
-0.04931500554084778,
0.06112048029899597,
-0.004891646094620228,
-0.024245990440249443,
-0.047023214399814606,
0.020740149542689323,
0.053535860031843185,
-0.08308784663677216,
-0.035545993596315384,
-0.024460801854729652
] | 14,315 |
14,318 |
The optical state of the flaring blazar BL Lacertae approaches again the historical brightness of the 2020 outburst
|
Alessandro Marchini (Astronomical Observatory, Department of Physical Sciences, Earth and Environment (DSFTA), University of Siena - Italy), Lorenzo Bellizzi, Andrea Lorini, Stefano Menchiari, Vincenzo Millucci, Riccardo Paoletti, Leonardo Stiaccini, Stefano Truzzi, Sofia Ventura, Carolin Wunderlich (DSFTA, University of Siena - Italy), Claudio Arena (ObsCT Private Observatory, Catania - Italy), Antonio Frasca (INAF - Osservatorio Astrofisico di Catania), Giuseppe Marino (Gruppo Astrofili Catanesi Observatory, Catania - Italy), Fabio Mortari (Hypatia Observatory, Rimini - Italy), Massimo Conti, Simone Leonini, Paolo Rosi, Luz Marina Tinjaca Ramirez (Montarrenti Observatory, Siena - Italy), Pietro Aceti, Massimo Banfi (Osservatorio Astronomico Città di Seveso, Seveso - Italy), Riccardo Papini, Fabio Salvaggio (Wild Boar Remote Observatory, Florence - Italy), Giacomo Bonnoli (IAA-CSIC, Granada - Spain)
|
We report that the blazar BL Lacertae (RA: 22 02 43.29 Dec: +42 16 39.98 J2000.0) reached in a single 180 s exposure taken on 2021 January 8.72 the optical magnitude R=12.01(0.01). We are intensively monitoring BL Lacertae in the optical band since last summer, from the astronomical observatories listed in the last paragraph, within an optical monitoring program devoted to BL Lacertae coordinated by the Whole Earth Blazar Telescope (WEBT) Collaboration. The following table reports our last measurements in the Johnson-Cousins VRI filters (averaged over 9 frames for each filter) from the Astronomical Observatory of the University of Siena: Civil Date(UT) Mag (dMag) 2021 Jan. 8.74 V= 12.67 (0.01) 2021 Jan. 8.75 R= 12.06 (0.01) 2021 Jan. 8.75 I= 11.31 (0.01) The reported magnitudes are close to their historical maxima in all the observed photometric bands. These measurements were obtained using the photometric sequence made available by the WEBT Collaboration (http://www.oato.inaf.it/blazars/webt/gasp/fc/2200fc.html ). Regarding the reported R magnitude, we stress that similar or lower magnitudes have been reached only a few times along the last 15 years according to the long term monitoring made publicly available by the Tuorla Observatory at http://users.utu.fi/kani/1m/BL_Lac.html. In particular, the R-band optical state is only ~0.3 mag dimmer than the historical optical magnitude R=11.73 measured on 2020 Oct 05.45 by M. Sasada et al. with the KANATA telescope (ATel#14081) in the wider context of a prolonged, exceptional outburst followed by many collaborations and instruments at all wavelengths from IR to VHE gamma-rays (see ATels #13930,#13933,#13956,#13958,#13963,#13964,#14032,#14065,#14069,#14072,#14081,#14096). Any enquiry on these observations can be addressed either to Alessandro Marchini ([email protected]) or to Giacomo Bonnoli ([email protected]). We will continue monitoring the source in the following nights. Multi-wavelength follow-up is encouraged. We acknowledge excellent scientific cooperation with, and valuable support from, the WEBT Collaboration, the BOOTES Network Collaboration, the Tuorla Observatory and the MAGIC Collaboration. Co-author Giacomo Bonnoli acknowledges financial support to the Spanish "Ministerio de Ciencia e Innovación" (MICINN) through grant PID2019-107847RB-C44 and Unit of Excellence Severo Ochoa award to the Instituto de Astrofísica de Andalucía - CSIC (SEV-2017-0709). A brief description of the instrumental setup used for the reported observation is available at the official webpage of the Astronomical Observatory of the University of Siena (see link below). Our long-term campaign has been conducted with the following optical facilities: the 0.2 m telescope at ObsCT Private Observatory in Catania (Italy); the 0.25 m telescope at the Gruppo Astrofili Catanesi Observatory in Catania (Italy); the 0.91 m telescope at the « M.G. Fracastoro» observing station (559) in Serra La Nave, Catania (Italy); the 0.2 m telescope at Hypatia Observatory (L62) in Rimini (Italy); the 0.53 m telescope at Montarrenti Observatory (C88) in Siena (Italy); the 0.3 m telescope at Osservatorio Astronomico Città di Seveso (C24) in Seveso (MB, Italy); the 0.3 m telescope at the Astronomical Observatory of the University of Siena (K54) in Siena (Italy); the 0.24 m telescope at Wild Boar Remote Observatory (K49) in San Casciano Val di Pesa (FI, Italy), the 0.6 m telescope at BOOTES-2 Observatory (Z82) in Algarrobo-Costa (Malaga, Spain).
|
2021-01-13 04:03:00
|
optical,x-ray,gamma ray,tev,vhe,agn,blazar,transient,request for observations
|
2021-01-13
|
04:03:00
| 3,504 |
[
-0.011578625999391079,
-0.020911293104290962,
0.0359031967818737,
0.04804607853293419,
0.04364525154232979,
-0.11283153295516968,
-0.06818083673715591,
0.017112135887145996,
0.007339897099882364,
-0.022274494171142578,
0.016823142766952515,
-0.09005354344844818,
0.000447084748884663,
0.058566849678754807,
-0.007679122034460306,
-0.060983169823884964,
-0.011045978404581547,
-0.02143988013267517,
0.027879271656274796,
0.0576728917658329,
-0.023139767348766327,
-0.016496269032359123,
-0.03872050344944,
0.07248997688293457,
0.005658574402332306,
-0.0669671967625618,
-0.10870291292667389,
0.00518477987498045,
-0.07102023810148239,
-0.030883492901921272,
-0.0656767189502716,
0.07147599756717682,
-0.05288480222225189,
-0.05600384250283241,
-0.003795347176492214,
0.018186073750257492,
-0.007429802790284157,
-0.07918432354927063,
0.028678786009550095,
0.0356295146048069,
-0.005890659987926483,
-0.05662653222680092,
0.053087107837200165,
0.022138584405183792,
-0.012320608831942081,
-0.02004145458340645,
-0.004750449676066637,
0.00886594783514738,
0.03534046187996864,
-0.040715426206588745,
-0.03761551156640053,
0.04189586266875267,
0.013889580965042114,
0.05065289884805679,
-0.04792863503098488,
0.0017423838144168258,
-0.018917439505457878,
-0.1295190453529358,
0.07473389059305191,
-0.0239520613104105,
0.03202017769217491,
0.039042651653289795,
-0.08471337705850601,
0.009525136090815067,
0.029774654656648636,
0.03626850247383118,
-0.12731492519378662,
-0.07834061980247498,
0.029878200963139534,
-0.02173326164484024,
-0.030492553487420082,
-0.014173075556755066,
-0.04140590876340866,
-0.045311469584703445,
0.016104355454444885,
0.07461819797754288,
0.02939571999013424,
0.09518936276435852,
0.0921536311507225,
-0.1381913423538208,
0.04760706052184105,
-0.019779754802584648,
-0.0447462797164917,
0.010401671752333641,
0.08215120434761047,
0.04478757828474045,
0.013744013383984566,
0.045024264603853226,
-0.014920279383659363,
0.047078631818294525,
0.07845433801412582,
0.03941693902015686,
-0.04431843012571335,
-0.04837429150938988,
0.012251988984644413,
-0.01670406199991703,
0.07266424596309662,
0.011524176225066185,
0.011473082937300205,
0.026456736028194427,
0.005493495613336563,
-0.051752712577581406,
-0.05211891978979111,
0.05484113469719887,
-0.014032486826181412,
0.031196800991892815,
0.05087657645344734,
0.02024947479367256,
0.021973805502057076,
0.038323622196912766,
-0.060712289065122604,
0.022740591317415237,
0.0038308908697217703,
-0.0507034994661808,
0.011284461244940758,
0.06794022768735886,
-0.04901508614420891,
0.11691230535507202,
-0.07094700634479523,
-0.014847376383841038,
0.020021680742502213,
0.06282410025596619,
0.019659092649817467,
0.014002704992890358,
0.09121333062648773,
0.043642327189445496,
-0.009564882144331932,
9.320765806054576e-33,
0.06645629554986954,
-0.0056981672532856464,
-0.047609325498342514,
0.002248726086691022,
0.013648576103150845,
0.08086042106151581,
-0.18787367641925812,
0.05510067194700241,
-0.02387779764831066,
0.005783324595540762,
-0.07192594558000565,
0.0193930771201849,
0.013169906102120876,
-0.023801863193511963,
-0.006041903048753738,
0.04913831129670143,
0.12381123006343842,
0.005134254228323698,
-0.06252793967723846,
-0.05022287368774414,
-0.051746197044849396,
0.007823753170669079,
-0.022373607382178307,
-0.0277944914996624,
0.053457438945770264,
0.08650784194469452,
-0.004460611846297979,
0.007669080980122089,
-0.09832914918661118,
0.05038413777947426,
0.01669389009475708,
-0.09035796672105789,
-0.008216124027967453,
0.00008450545283267274,
0.003567621111869812,
-0.03501388803124428,
-0.07454145699739456,
-0.07420387119054794,
-0.05876602232456207,
-0.008161846548318863,
0.03633200004696846,
0.02806903049349785,
-0.05459417402744293,
0.01173472125083208,
-0.019899001345038414,
-0.005274054128676653,
0.033694904297590256,
0.07685767114162445,
0.03164765238761902,
-0.043103136122226715,
-0.008477002382278442,
0.055019840598106384,
-0.0902448520064354,
-0.024546165019273758,
0.059606872498989105,
0.1167772188782692,
0.06785916537046432,
-0.047217488288879395,
-0.08033577352762222,
0.03726611286401749,
0.04623183608055115,
0.05774323642253876,
-0.004558894317597151,
-0.021552186459302902,
0.031939372420310974,
0.054008811712265015,
-0.006785474717617035,
0.1324676126241684,
-0.03142522647976875,
0.007393202278763056,
-0.03744914010167122,
0.008374771103262901,
0.03744935244321823,
-0.04215100780129433,
-0.03235452249646187,
-0.053267668932676315,
0.04623444750905037,
0.023265376687049866,
-0.021173331886529922,
0.002898741979151964,
-0.052898015826940536,
-0.017735114321112633,
0.03445574268698692,
-0.06349856406450272,
-0.064205102622509,
0.05169158801436424,
0.0676129087805748,
0.03240429237484932,
-0.04454953595995903,
-0.0857895016670227,
0.046333182603120804,
-0.033224694430828094,
0.02668500505387783,
-0.05831527337431908,
-0.0682600662112236,
-9.004405746101743e-33,
-0.023846015334129333,
-0.0037028726655989885,
0.04826334863901138,
-0.05964326113462448,
-0.036072466522455215,
0.005225516390055418,
-0.021687088534235954,
-0.01345438975840807,
-0.07997380197048187,
-0.0378057062625885,
-0.03912822902202606,
0.01048276387155056,
-0.05642252415418625,
-0.14173895120620728,
0.03289654105901718,
0.042236097157001495,
0.022759675979614258,
-0.021947944536805153,
-0.08252803981304169,
-0.037984754890203476,
-0.012607574462890625,
0.0023500348906964064,
0.01306550670415163,
0.013431224972009659,
-0.03117631934583187,
0.004101946484297514,
0.061841968446969986,
0.014597130008041859,
-0.0037159789353609085,
-0.01867634430527687,
-0.06361087411642075,
0.0015420025447383523,
-0.06205180287361145,
-0.04128604009747505,
0.03176218643784523,
0.08662579953670502,
0.04240904003381729,
0.024738840758800507,
-0.020928392186760902,
0.07718319445848465,
-0.03565782681107521,
0.11657301336526871,
-0.0035709617659449577,
-0.027116604149341583,
0.009853126481175423,
0.05383064225316048,
0.027410609647631645,
0.04027661308646202,
-0.02881687507033348,
0.06251195073127747,
0.05496625602245331,
-0.03882608190178871,
-0.04713399335741997,
0.08198815584182739,
0.003574176924303174,
0.03719720616936684,
-0.01933358609676361,
0.018793577328324318,
0.058649029582738876,
-0.0767866000533104,
0.06668690592050552,
-0.0010822700569406152,
-0.06963149458169937,
0.09930182248353958,
0.006003280635923147,
-0.10607617348432541,
-0.04735935479402542,
0.0835782140493393,
0.0014958655228838325,
0.07108017057180405,
0.09339774399995804,
-0.04316416755318642,
-0.06701113283634186,
0.040468402206897736,
0.04559912532567978,
0.09574668109416962,
0.027354298159480095,
-0.0149992099031806,
0.026908043771982193,
-0.007400674745440483,
-0.03497883304953575,
0.01458650454878807,
0.0119340093806386,
0.06212611123919487,
0.05637262761592865,
-0.041773486882448196,
-0.07102086395025253,
-0.03506818413734436,
0.032405510544776917,
0.046416450291872025,
0.017432697117328644,
0.06197412312030792,
0.029833132401108742,
0.009984186850488186,
0.09103633463382721,
-5.597982166705151e-8,
0.052143245935440063,
0.00410510553047061,
-0.0019827273208647966,
0.03842252492904663,
0.014307601377367973,
-0.03853829577565193,
-0.025952916592359543,
-0.010764854960143566,
-0.031735602766275406,
0.014939611777663231,
-0.014977546408772469,
-0.0105443075299263,
0.030049001798033714,
-0.0673743337392807,
0.01667608506977558,
-0.017806483432650566,
0.016087356954813004,
-0.008699159137904644,
-0.039192453026771545,
0.06462829560041428,
0.0592050738632679,
0.03307326138019562,
-0.03363331779837608,
-0.06707940995693207,
0.004060257691890001,
-0.045774444937705994,
-0.008871071971952915,
-0.007884889841079712,
-0.06482508778572083,
0.022076403722167015,
-0.012251036241650581,
-0.034050531685352325,
0.041777029633522034,
-0.19285017251968384,
-0.001122057088650763,
0.12969012558460236,
-0.09634622186422348,
0.021616974845528603,
0.06736833602190018,
0.04556100815534592,
0.005535633768886328,
-0.05035237967967987,
-0.00026985295698978007,
0.04603280872106552,
-0.02231697365641594,
0.005789988674223423,
0.009219218045473099,
-0.062250107526779175,
0.007778180297464132,
-0.014325561001896858,
-0.028211360797286034,
-0.013850078918039799,
0.0811326652765274,
-0.029818471521139145,
-0.0644030049443245,
0.0010014662984758615,
0.011179600842297077,
-0.020419131964445114,
0.04596554487943649,
-0.005126672796905041,
0.03043654002249241,
-0.05031317099928856,
-0.1303066462278366,
-0.013898929581046104
] | 14,316 |
14,319 |
Spectroscopic Classifications of Optical Transients with the Keck I telescope
|
M. R. Siebert, G. Dimitriadis, R. J. Foley (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the LRIS spectrograph on the Keck I telescope. Targets were supplied by YSE. All observations were made on 2021 Jan 13 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure an H alpha velocity of -9,100 km/s.
|
2021-01-13 19:24:00
|
optical,supernovae,transient
|
2021-01-13
|
19:24:00
| 506 |
[
-0.029782690107822418,
-0.08431311696767807,
0.01024638768285513,
-0.009404433891177177,
0.02663271501660347,
-0.003992002923041582,
-0.012520065531134605,
0.03204454854130745,
-0.003804962383583188,
-0.02614910528063774,
0.006028568837791681,
-0.06425774097442627,
-0.06336397677659988,
-0.059797707945108414,
0.015860209241509438,
-0.05911482498049736,
0.04954409971833229,
-0.04818817600607872,
0.04381600394845009,
0.017682690173387527,
-0.02252591773867607,
0.014952908270061016,
-0.07212171703577042,
0.06846806406974792,
0.07320481538772583,
-0.0017107347957789898,
-0.01622973382472992,
-0.05236639082431793,
-0.0023053474724292755,
-0.0526106096804142,
-0.002267200266942382,
0.03793361410498619,
-0.047583360224962234,
0.1075047180056572,
0.03935626149177551,
-0.027943085879087448,
0.09761270880699158,
-0.06764808297157288,
0.05241835489869118,
-0.0048476699739694595,
0.03894050791859627,
-0.09559692442417145,
0.006662080530077219,
-0.011965201236307621,
0.03771716356277466,
0.07235153019428253,
-0.016561591997742653,
0.007259984966367483,
-0.10730975866317749,
-0.001159069943241775,
0.010681663639843464,
0.012223942205309868,
0.04364418238401413,
0.0002723364741541445,
0.04146150127053261,
0.04172506928443909,
-0.006084806751459837,
-0.08081896603107452,
0.10756377130746841,
-0.0077123516239225864,
0.013583838008344173,
-0.029124630615115166,
-0.03713459149003029,
-0.041008152067661285,
-0.008760606870055199,
0.017870839685201645,
0.0075982436537742615,
-0.05097641050815582,
0.11794258654117584,
0.01314010564237833,
-0.06203978508710861,
0.056876979768276215,
0.014379259198904037,
-0.005266869440674782,
-0.020404258742928505,
-0.00144689972512424,
0.11109837144613266,
0.06433941423892975,
0.040260788053274155,
-0.11731287091970444,
0.11682849377393723,
-0.02286870777606964,
-0.08567392826080322,
-0.016823073849081993,
-0.0006409380002878606,
-0.015276847407221794,
-0.06718616932630539,
0.10372903943061829,
-0.043834660202264786,
-0.03533739596605301,
-0.01392117328941822,
-0.06373615562915802,
-0.05696594715118408,
-0.0940883457660675,
-0.026562774553894997,
-0.012068728916347027,
0.007254907861351967,
-0.03523639217019081,
0.08038360625505447,
0.015955252572894096,
0.044038545340299606,
-0.047683291137218475,
-0.0379890538752079,
0.10417250543832779,
-0.06713134050369263,
0.04037529230117798,
0.08243176341056824,
-0.0020347496028989553,
0.03276139870285988,
0.010695608332753181,
0.050599463284015656,
0.011266195215284824,
-0.05273621156811714,
-0.1201658695936203,
0.0028279994148761034,
0.004445099737495184,
-0.053150326013565063,
0.08240292221307755,
-0.06332972645759583,
-0.06649564951658249,
-0.0016364050097763538,
0.039623770862817764,
0.015474021434783936,
0.0033482497092336416,
-0.01606527343392372,
-0.012352080084383488,
-0.04811174049973488,
3.218991730048999e-33,
0.06659924238920212,
0.04309140890836716,
-0.0907168984413147,
-0.020137332379817963,
0.005565174389630556,
-0.042455751448869705,
-0.06470896303653717,
0.009449569508433342,
0.012938450090587139,
-0.06455735117197037,
-0.030864901840686798,
-0.0037211733870208263,
-0.011888212524354458,
-0.06022990867495537,
-0.0362691804766655,
0.037138842046260834,
0.05027592554688454,
0.04357011616230011,
-0.12752293050289154,
0.04831121116876602,
-0.05539921298623085,
-0.005528685636818409,
-0.03801565244793892,
0.012655782513320446,
0.04668712615966797,
0.030278032645583153,
0.008034300990402699,
0.004355969373136759,
0.004598415456712246,
0.02608802728354931,
0.018803797662258148,
0.05669181048870087,
0.016925370320677757,
0.006853602826595306,
-0.003246897831559181,
-0.027204645797610283,
-0.01801874116063118,
0.01776273548603058,
0.07910986989736557,
-0.05822393298149109,
-0.014084058813750744,
0.060402363538742065,
-0.0612514466047287,
0.03082629106938839,
0.005570665467530489,
-0.02527046948671341,
-0.0549616813659668,
0.05736059695482254,
0.06988303363323212,
-0.002934044227004051,
-0.002935196505859494,
-0.07924651354551315,
-0.08788349479436874,
-0.03806701675057411,
0.018515896052122116,
0.03787138685584068,
0.011046310886740685,
0.030981145799160004,
0.02934487722814083,
0.07345407456159592,
0.05622948706150055,
-0.009531614370644093,
0.029404079541563988,
-0.027774007990956306,
-0.007046818267554045,
0.05559872090816498,
-0.06783761829137802,
0.07588860392570496,
-0.005704166367650032,
0.07008812576532364,
-0.027021558955311775,
0.10619640350341797,
0.09185747802257538,
-0.06548544764518738,
0.06527825444936752,
-0.021202590316534042,
-0.005294380709528923,
0.048205576837062836,
-0.09155276417732239,
0.04667176678776741,
-0.028692379593849182,
-0.07846125960350037,
0.036845751106739044,
-0.0014224858023226261,
-0.0258654672652483,
0.03824196010828018,
-0.031725235283374786,
0.016289841383695602,
-0.01843302696943283,
-0.07742506265640259,
0.055845145136117935,
-0.00922432541847229,
0.011691702529788017,
-0.07651962339878082,
-0.11299049109220505,
-4.126173250482361e-33,
0.08373737335205078,
0.06697820127010345,
-0.05062465742230415,
0.07958237826824188,
-0.03318428993225098,
0.06246430054306984,
0.04100891202688217,
0.11403799802064896,
-0.10281535983085632,
-0.029032764956355095,
0.020222453400492668,
0.012384304776787758,
-0.11401410400867462,
-0.1307479590177536,
-0.008282138034701347,
-0.03817906603217125,
-0.032697416841983795,
-0.02794674225151539,
0.018701879307627678,
-0.012751536443829536,
0.03434554114937782,
-0.06723765283823013,
0.030009323731064796,
-0.0489223338663578,
-0.004240724723786116,
0.023398419842123985,
0.028267566114664078,
0.047004636377096176,
-0.076032355427742,
-0.05615735426545143,
-0.008581763133406639,
-0.03606374189257622,
-0.02788361720740795,
-0.03977852314710617,
0.05932305008172989,
0.046768203377723694,
-0.011357184499502182,
-0.032690804451704025,
-0.08798415213823318,
-0.03468087315559387,
-0.008028765209019184,
0.0864773690700531,
0.007135138846933842,
-0.027715114876627922,
0.01644231006503105,
-0.02513323351740837,
-0.0015612581046298146,
0.08151350170373917,
0.0555228553712368,
-0.06311555951833725,
0.07036575675010681,
-0.0191043671220541,
-0.014234615489840508,
0.0457032136619091,
-0.03100086748600006,
0.09042292833328247,
-0.005290669854730368,
0.07407467812299728,
0.040631648153066635,
0.0486283041536808,
-0.050907183438539505,
0.005787905305624008,
-0.011674116365611553,
0.030835319310426712,
0.052981987595558167,
-0.08767133951187134,
-0.010462457314133644,
0.025953738018870354,
0.05189264565706253,
0.011191786266863346,
0.06009206920862198,
-0.007213563192635775,
-0.03484261780977249,
0.036133136600255966,
0.07196561992168427,
0.0032092586625367403,
-0.03383847698569298,
-0.06297659128904343,
0.02929765172302723,
0.030411241576075554,
-0.028969258069992065,
-0.005024840589612722,
0.047366783022880554,
0.0546158067882061,
0.07328547537326813,
0.001139000873081386,
-0.026346594095230103,
-0.03044060617685318,
0.046522319316864014,
-0.058511532843112946,
0.016553593799471855,
0.007402257528156042,
-0.031296197324991226,
-0.034865640103816986,
0.058053188025951385,
-5.035106553918922e-8,
0.06444672495126724,
0.02001083269715309,
-0.048154670745134354,
0.03689153492450714,
0.03506900742650032,
0.0052904956974089146,
-0.03371520712971687,
0.05040310323238373,
0.008496545255184174,
-0.035200659185647964,
0.038718532770872116,
-0.054296497255563736,
0.03480127826333046,
-0.04239838197827339,
0.02400958351790905,
-0.05297998711466789,
0.006172387395054102,
-0.0032492303289473057,
-0.03151044622063637,
0.06327823549509048,
0.05491675063967705,
0.06963137537240982,
0.07040517032146454,
-0.04506519064307213,
0.002871603239327669,
0.0472627617418766,
-0.009456023573875427,
0.1011233702301979,
0.024950986728072166,
-0.015413844957947731,
0.029996784403920174,
-0.020898275077342987,
-0.008308419026434422,
-0.013415578752756119,
-0.019522909075021744,
0.03530525788664818,
-0.15828177332878113,
0.08586009591817856,
0.10087870806455612,
0.06621891260147095,
-0.05787505954504013,
-0.02710055001080036,
-0.0033805216662585735,
0.044316403567790985,
-0.1000407412648201,
0.014713555574417114,
-0.058933649212121964,
-0.07214541733264923,
-0.017797335982322693,
0.041505854576826096,
-0.031723398715257645,
0.006686645094305277,
-0.038620006293058395,
-0.03535079583525658,
-0.10292845964431763,
-0.04274511709809303,
0.013769321143627167,
-0.04478937387466431,
-0.029112886637449265,
-0.053151633590459824,
0.14580053091049194,
-0.0097693782299757,
-0.09766987711191177,
0.04116267338395119
] | 14,317 |
14,320 |
AT 2021pb is a Young Type IIb Supernova
|
D. Milisavljevic, K. E. Weil (Purdue University), J. Rupert (MDM Observatory), G. Dimitriadis, M. Siebert, R. J. Foley (UC Santa Cruz), D. Matthews, W. Jacobson-Galan, R. Margutti (Northwestern University)
|
We report photometry and spectroscopy of AT2021pb (ZTF21aabxjqr, ATLAS21agp) confirming that it is a young Type IIb supernova.
The transient was first reported by the Zwicky Transient Facility (ZTF; Bellm+ 2019, PASP, 131), and then identified as a target of interest by the Young Supernova Experiment (YSE; Jones+ 2020, arXiv:2010.09724). Observations obtained January 9.4 and 10.5 UT with the MDM 2.4m Hiltner telescope (+OSMOS) show an overall blue continuum with subtle absorptions consistent with H alpha and He I 5876 with velocity -16,000 km/s when corrected for the redshift of the host galaxy (CGCG 265-032, z=0.033; NED). A subsequent spectrum obtained with the LRIS spectrograph on the Keck I 10m telescope on January 13 show that these absorptions have developed into conspicuous P-Cyg features consistent with a Type IIb supernova. Best matches using SNID are SN 1993J and SN 2003bg one week before maximum light.
ZTF public photometry indicates that the supernova was rapidly declining during the MDM observations, which we interpret as a period of cooling envelope emission. The latest ZTF-r measurement indicates that the supernova is now rebrightening. Follow up observations are encouraged.
|
2021-01-14 08:25:00
|
optical,supernovae,transient
|
2021-01-14
|
08:25:00
| 1,210 |
[
-0.09137002378702164,
-0.029369773343205452,
0.017552848905324936,
0.059022095054388046,
0.04991310089826584,
-0.006542989984154701,
-0.0488799586892128,
0.027379203587770462,
-0.029820825904607773,
-0.056493766605854034,
0.004142473917454481,
-0.02089637704193592,
0.04192504659295082,
-0.007809561677277088,
0.038922544568777084,
0.010392510332167149,
0.048424214124679565,
-0.12547628581523895,
0.01490107923746109,
0.0470888689160347,
-0.04999639466404915,
0.13367484509944916,
-0.04902888089418411,
0.025222469121217728,
0.020276127383112907,
-0.0405924916267395,
-0.027982402592897415,
-0.03855054825544357,
0.033945389091968536,
0.03211512416601181,
0.09015046805143356,
0.03782996907830238,
-0.06282275170087814,
0.0440005399286747,
0.06530975550413132,
-0.07018595933914185,
0.06476030498743057,
-0.023521292954683304,
-0.006512408144772053,
-0.06959820538759232,
0.017349660396575928,
-0.048412762582302094,
-0.05223744735121727,
0.04374171420931816,
-0.030416712164878845,
-0.0008534631342627108,
-0.016410131007432938,
-0.050690099596977234,
-0.07535945624113083,
0.024002620950341225,
-0.040980760008096695,
0.0023653260432183743,
0.05775448679924011,
0.07262713462114334,
0.07521910220384598,
0.09103371202945709,
-0.01255007367581129,
-0.07075931131839752,
0.0813257172703743,
-0.018895164132118225,
0.0002770930586848408,
-0.07103686034679413,
-0.044391244649887085,
-0.0741216391324997,
0.011649309657514095,
0.06169775128364563,
-0.013979042880237103,
-0.03568397834897041,
0.018607569858431816,
-0.07877185195684433,
-0.00891232118010521,
-0.0029656318947672844,
0.006527136079967022,
0.002618031110614538,
0.013039267621934414,
-0.038046322762966156,
0.10474292188882828,
0.03779811039566994,
0.055328767746686935,
-0.08312742412090302,
0.04420861601829529,
-0.06321046501398087,
-0.008031751029193401,
-0.0295372623950243,
-0.026112321764230728,
-0.02209320478141308,
-0.024470780044794083,
0.06610392034053802,
-0.034150559455156326,
0.07055526971817017,
0.04986893758177757,
0.038169439882040024,
-0.0843687430024147,
-0.037761107087135315,
0.010463004000484943,
0.0067399898543953896,
0.0284089595079422,
0.012406038120388985,
0.1327752023935318,
0.04394013434648514,
0.03662842884659767,
-0.00021693995222449303,
-0.01528371125459671,
0.02425488829612732,
-0.015896335244178772,
-0.004190554842352867,
0.0872969925403595,
0.021532651036977768,
0.009963438846170902,
0.0668187290430069,
0.14538080990314484,
-0.02073872648179531,
-0.01277143880724907,
-0.04415450617671013,
0.0201721228659153,
0.01345657929778099,
-0.043780479580163956,
0.10703066736459732,
-0.09655074775218964,
-0.10647176951169968,
-0.021658847108483315,
0.07365428656339645,
0.01575116626918316,
0.004244652576744556,
-0.030314235016703606,
0.010770870372653008,
-0.12333758175373077,
5.56791339834605e-33,
0.04155181348323822,
0.012025860138237476,
-0.04261322692036629,
0.017630815505981445,
-0.02352384850382805,
-0.0016042385250329971,
-0.024934757500886917,
0.06773313879966736,
-0.047998737543821335,
-0.051452066749334335,
-0.0692489817738533,
-0.051953431218862534,
-0.009517702274024487,
-0.040908876806497574,
-0.05716022104024887,
-0.06870002299547195,
-0.01293213665485382,
-0.004354683216661215,
-0.08187709748744965,
0.08915415406227112,
-0.016470979899168015,
0.07595832645893097,
-0.011460070498287678,
0.002418063348159194,
0.05124741047620773,
-0.008494489826261997,
0.019728144630789757,
-0.014018206857144833,
0.02407282218337059,
0.016801640391349792,
-0.005755218677222729,
-0.002101009013131261,
-0.07824791222810745,
0.01872788555920124,
-0.033349428325891495,
-0.07442467659711838,
-0.04983154311776161,
-0.02422979101538658,
-0.055708564817905426,
-0.04574625566601753,
0.03196142241358757,
0.05364565551280975,
-0.06567349284887314,
0.1132543757557869,
0.05660748854279518,
-0.021545706316828728,
0.05340990796685219,
0.014583216048777103,
0.008829832077026367,
-0.0063458639197051525,
-0.03764428198337555,
-0.022044146433472633,
-0.06710731983184814,
0.01237888541072607,
-0.01638912223279476,
0.005597865208983421,
0.025142120197415352,
0.026003163307905197,
0.024731891229748726,
0.03539300337433815,
0.11496315896511078,
0.013362708501517773,
0.03700445964932442,
0.06570614129304886,
0.002368591260164976,
0.07528100162744522,
-0.026081394404172897,
0.039240896701812744,
0.004562219139188528,
-0.012626721523702145,
-0.0012585317017510533,
0.0755542665719986,
0.13204874098300934,
-0.09858500212430954,
0.045949723571538925,
-0.09451335668563843,
0.05741570144891739,
-0.0034900126047432423,
-0.00025710699264891446,
-0.027720095589756966,
-0.027518725022673607,
-0.02464056760072708,
0.09193821251392365,
-0.012592509388923645,
-0.09649212658405304,
-0.04959293082356453,
-0.03919468820095062,
0.011152666062116623,
0.004751952830702066,
-0.04975941404700279,
0.04840437322854996,
-0.029497358947992325,
0.012322519905865192,
-0.031143097206950188,
-0.09979616105556488,
-5.385990953876916e-33,
0.08401565253734589,
0.022841444239020348,
0.017490824684500694,
0.021209625527262688,
0.008461147546768188,
0.04098731279373169,
0.05695817619562149,
0.08556262403726578,
-0.07994331419467926,
-0.11750593781471252,
0.09654707461595535,
0.06561959534883499,
-0.05619978904724121,
-0.09339673072099686,
0.013544665649533272,
-0.030341168865561485,
0.07444941997528076,
0.009264416061341763,
-0.020206546410918236,
-0.030980803072452545,
0.040458276867866516,
0.018144238740205765,
0.025787753984332085,
0.012506652623414993,
-0.027050642296671867,
0.040318455547094345,
0.08163952082395554,
-0.0029722503386437893,
-0.04983275756239891,
0.055138733237981796,
-0.006450147368013859,
0.09619632363319397,
0.022661074995994568,
-0.045114994049072266,
-0.006305213551968336,
0.02804269827902317,
-0.010065702721476555,
-0.064313605427742,
-0.10318994522094727,
-0.0032076651696115732,
-0.04263222590088844,
0.10546533763408661,
-0.0713832676410675,
0.04572264477610588,
-0.035499829798936844,
0.032646361738443375,
-0.026668395847082138,
0.03493109717965126,
0.020931651815772057,
-0.02893538773059845,
0.0290354173630476,
-0.021901600062847137,
-0.01315557025372982,
0.04374711588025093,
-0.02620282769203186,
0.03638746589422226,
0.011215914972126484,
0.03219728171825409,
-0.003568527987226844,
0.03428972139954567,
0.059814032167196274,
-0.004999841097742319,
-0.002484623808413744,
-0.029522916302084923,
0.055730078369379044,
-0.0649079754948616,
0.014246320351958275,
0.015453712083399296,
-0.02061045914888382,
0.05246462672948837,
0.015189719386398792,
-0.031687092036008835,
-0.09803631901741028,
0.036868371069431305,
0.07710200548171997,
0.06661106646060944,
0.026586728170514107,
-0.09571506828069687,
-0.03689797222614288,
0.016319703310728073,
-0.03836964815855026,
0.01373216975480318,
0.03732940927147865,
0.016856281086802483,
0.07378046959638596,
-0.07066421955823898,
-0.04460674896836281,
-0.07087092846632004,
-0.04565533250570297,
-0.042377274483442307,
-0.059375058859586716,
-0.02507401816546917,
-0.03665619716048241,
-0.0015805531293153763,
0.07927540689706802,
-6.206640534855978e-8,
0.04372034966945648,
0.014235926792025566,
-0.02662479132413864,
0.019572051241993904,
0.022102516144514084,
-0.034948885440826416,
-0.055059269070625305,
0.035056233406066895,
0.052038662135601044,
0.0011433807667344809,
-0.008655210956931114,
-0.06160770356655121,
0.017305366694927216,
-0.06395342946052551,
0.05961695313453674,
-0.010560762137174606,
-0.052089132368564606,
-0.0827864482998848,
-0.07755368202924728,
0.02551373653113842,
0.036723792552948,
0.04067608714103699,
0.028225887566804886,
-0.042937930673360825,
0.010506782680749893,
-0.0205465666949749,
-0.06918006390333176,
0.10435833781957626,
0.04228896647691727,
-0.09058437496423721,
-0.01798606850206852,
-0.025840146467089653,
0.0021232932340353727,
-0.030494598671793938,
-0.030208757147192955,
0.07320728152990341,
-0.05789833888411522,
0.004608974326401949,
0.09010963141918182,
0.05044623464345932,
0.0032687184866517782,
-0.11453993618488312,
-0.00911931972950697,
0.031725719571113586,
-0.07233023643493652,
-0.03755536302924156,
-0.030287912115454674,
-0.004199841059744358,
0.016649818047881126,
0.05109766870737076,
-0.009743318893015385,
0.00417666882276535,
0.0006115775904618204,
-0.06431885063648224,
-0.035073041915893555,
0.015737347304821014,
-0.05411609634757042,
0.007749883458018303,
0.03617437556385994,
0.03869083523750305,
0.14665065705776215,
-0.07311715930700302,
-0.10228689759969711,
-0.0035688949283212423
] | 14,318 |
14,321 |
MASTER-OAFA: new OT with outburst ampl>4.2m
|
V. Shumkov, V. Lipunov, V. Kornilov, E. Gorbovskoy, N. Tyurina, P. Balanutsa, A. Kuznetsov, F. Balakin, V. Vladimirov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, V. Topolev, K. Zhirkov, A. Pozdnyakov, D. Kuvshinov, D. Cheryasov (Lomonosov MSU), R. Podesta, F. Podesta, C. Francile (OAFA), D. Buckley (SAAO), R. Rebolo, M. Serra-Ricart (IAC)A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
|
MASTER OT J065559.44-502253.6 discovery - OT with outburst ampl>4.2m (no sources inside 5" in VIZIER)
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 06h 55m 59.44s -50d 22m 53.6s on 2021-01-13.16730 UT.
The OT unfiltered magnitude is 18.8m (mlim=19.2).
The OT is seen in 5 images. There is no minor planet at this place. There are images at 2021-01-08 05:52:47UT with unfiltered mOT=17.8 (MASTER-OAFA), and at 2021-01-08 22:07:00UT with unfiltered mOT=17.9(MASTER-SAAO).
We have reference image on 2020-01-01.22485 UT with unfiltered 20.0m. There is no any sources inside 5" in VIZIER database, it means 22m POSS limit in history and more then 4.2m of current amplitude
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/065559.44-502253.6.png
|
2021-01-15 01:19:00
|
optical,cataclysmic variable,planet,transient,variables,request for observations
|
2021-01-15
|
01:19:00
| 928 |
[
-0.08670338243246078,
-0.00862299744039774,
-0.0677831619977951,
0.021952807903289795,
0.029770532622933388,
-0.021751418709754944,
-0.013206776231527328,
0.03909001499414444,
0.04013685882091522,
0.01676860824227333,
-0.013290266506373882,
-0.0725613608956337,
-0.01878851093351841,
-0.018556077033281326,
0.04399373382329941,
0.06235548481345177,
0.009869726374745369,
-0.0506645068526268,
0.06663912534713745,
-0.008533849380910397,
-0.032511867582798004,
0.029293140396475792,
-0.012908568605780602,
0.0038891523145139217,
0.03151852265000343,
0.025682322680950165,
-0.07505390048027039,
-0.017174672335386276,
-0.031417932361364365,
-0.027403010055422783,
-0.016408421099185944,
0.042559247463941574,
-0.04191594198346138,
-0.039968669414520264,
0.04596700519323349,
0.08011142164468765,
-0.018059950321912766,
-0.015301700681447983,
-0.011256327852606773,
0.0786391943693161,
-0.009247809648513794,
0.011557109653949738,
-0.00924479216337204,
0.02138429880142212,
-0.0810493752360344,
0.01963258720934391,
-0.017165236175060272,
-0.05998185649514198,
-0.01729169674217701,
-0.06930462270975113,
-0.026117311790585518,
-0.05643334984779358,
0.029826756566762924,
0.024857306852936745,
-0.0036959529388695955,
-0.023370256647467613,
-0.04884352535009384,
0.00005768735718447715,
0.07634750753641129,
-0.03561289981007576,
0.0466143898665905,
-0.06273148953914642,
-0.04525987431406975,
-0.06885974854230881,
0.008120520040392876,
-0.04567144066095352,
-0.02907927706837654,
-0.002690837951377034,
0.05632529780268669,
0.0347483791410923,
0.018949300050735474,
0.06120419502258301,
-0.06017693877220154,
-0.11449697613716125,
-0.001498374273069203,
0.038291122764348984,
0.07225323468446732,
0.047398049384355545,
0.053470201790332794,
-0.06103866919875145,
-0.032314103096723557,
0.06364517658948898,
-0.05635116249322891,
-0.07986882328987122,
-0.03790048882365227,
0.020810922607779503,
0.02249988727271557,
0.029335377737879753,
0.0044156769290566444,
-0.000789577723480761,
0.144673153758049,
-0.02396020106971264,
-0.06389132142066956,
-0.004019159823656082,
0.05908924341201782,
0.04109051078557968,
0.027496937662363052,
-0.037647638469934464,
0.06359541416168213,
0.003579684067517519,
0.09878607094287872,
-0.015588978305459023,
-0.08024849742650986,
0.0650203675031662,
-0.0679098516702652,
0.009884593077003956,
0.031256306916475296,
0.06016647815704346,
-0.020587876439094543,
0.012863184325397015,
-0.04542271047830582,
-0.025024252012372017,
0.08674211800098419,
0.00792645663022995,
0.043146852403879166,
0.06197815760970116,
-0.011661571450531483,
0.08731689304113388,
-0.1202433630824089,
-0.00012674620666075498,
0.022065766155719757,
-0.019258808344602585,
0.043314624577760696,
0.07504647970199585,
-0.014814680442214012,
0.13746459782123566,
-0.04163428023457527,
7.731619401281741e-33,
0.12959298491477966,
0.04874562844634056,
-0.05706343054771423,
0.0009299368248321116,
-0.03129212185740471,
0.03476807102560997,
-0.08089447766542435,
0.08998583257198334,
-0.05226954445242882,
-0.00915937963873148,
-0.1158316433429718,
-0.008169314824044704,
0.0655258297920227,
-0.014602872543036938,
-0.0774068534374237,
-0.00638922955840826,
0.015128789469599724,
0.05893286317586899,
-0.11963354796171188,
-0.022399744018912315,
0.021795284003019333,
0.07638241350650787,
-0.06756192445755005,
-0.0315861701965332,
-0.016914058476686478,
0.09693296998739243,
0.04216823726892471,
-0.0392511710524559,
-0.08069244772195816,
0.033088985830545425,
-0.02011875994503498,
-0.079723060131073,
-0.01731983944773674,
0.06865282356739044,
0.02422734722495079,
-0.027722235769033432,
-0.07387126982212067,
-0.029171215370297432,
-0.06008436903357506,
-0.07175885140895844,
0.011867282912135124,
0.037864889949560165,
-0.08903256803750992,
0.07862211763858795,
0.06494776904582977,
-0.05981118604540825,
-0.004274459555745125,
0.10265231132507324,
0.010447456501424313,
-0.01948506012558937,
-0.03604362905025482,
0.026695502921938896,
-0.07158114016056061,
-0.0005439892993308604,
0.06786453723907471,
0.08307980000972748,
0.0393550768494606,
-0.009809901937842369,
0.06133249029517174,
0.059829503297805786,
0.0470103956758976,
0.02702200971543789,
-0.015710322186350822,
-0.029512178152799606,
-0.01294584572315216,
0.05697851628065109,
-0.08455115556716919,
0.014627458527684212,
-0.022144842892885208,
0.003272014670073986,
0.019586993381381035,
0.0020533069036900997,
0.004939878359436989,
-0.032469142228364944,
0.0630546361207962,
-0.09563051909208298,
0.027194615453481674,
0.042211852967739105,
-0.02680872566998005,
-0.010369791649281979,
-0.1168544590473175,
-0.055391520261764526,
0.008885377086699009,
-0.03581918776035309,
-0.11302095651626587,
-0.05480869486927986,
-0.013559304177761078,
-0.016775283962488174,
-0.013106567785143852,
-0.0008307176758535206,
-0.0013117115013301373,
0.013070253655314445,
0.02448236756026745,
0.000746758421882987,
-0.08396848291158676,
-8.436024840120397e-33,
0.010090230032801628,
-0.0377664640545845,
0.025665728375315666,
-0.06049530580639839,
-0.013829010538756847,
0.09238448739051819,
-0.028260555118322372,
-0.022726308554410934,
-0.08601414412260056,
-0.061267782002687454,
-0.0009234839235432446,
0.008970903232693672,
-0.08496386557817459,
-0.10683316737413406,
0.05943698436021805,
0.01564469188451767,
0.039916347712278366,
0.0017589114140719175,
-0.04039256274700165,
0.01941640116274357,
0.0013634363422170281,
-0.03628475219011307,
-0.00048677355516701937,
-0.02614717185497284,
0.005049500148743391,
0.02096734754741192,
0.06402511894702911,
-0.03713816776871681,
-0.024205282330513,
0.08172566443681717,
-0.021774712949991226,
0.0011889783199876547,
-0.08781496435403824,
0.04173174500465393,
0.022384587675333023,
0.07596416771411896,
0.04819180443882942,
-0.014385576359927654,
-0.10480758547782898,
0.0001597281516296789,
-0.03974394127726555,
0.12138619273900986,
-0.05033014714717865,
0.0220054779201746,
-0.0057731252163648605,
-0.020902493968605995,
-0.007024896796792746,
0.09923851490020752,
0.013572207652032375,
-0.0030119274742901325,
-0.014354463666677475,
-0.08514659851789474,
0.03325727581977844,
0.02346336469054222,
-0.040451399981975555,
0.058970142155885696,
0.02056128904223442,
0.030265213921666145,
-0.02054601162672043,
-0.07450808584690094,
0.027763305231928825,
-0.085323266685009,
0.014123404398560524,
0.019461095333099365,
0.07975736260414124,
-0.00753949536010623,
0.03441091999411583,
0.1276538074016571,
-0.008363173343241215,
0.004399614874273539,
-0.025004969909787178,
-0.06469664722681046,
0.01142555009573698,
-0.04620776325464249,
0.013007157482206821,
0.06336356699466705,
-0.07412555068731308,
-0.06763865053653717,
-0.0041861701756715775,
-0.06284493952989578,
-0.09009302407503128,
0.09352916479110718,
0.019853217527270317,
-0.025784676894545555,
0.035919155925512314,
0.026010584086179733,
0.019636521115899086,
-0.053675487637519836,
-0.05519817769527435,
-0.034546952694654465,
0.005492158234119415,
0.01854683831334114,
0.03023485466837883,
0.12577232718467712,
0.05333390459418297,
-6.860284429421881e-8,
0.07155980169773102,
0.030255097895860672,
0.036146409809589386,
0.014957387000322342,
0.05788315460085869,
-0.06036991626024246,
-0.023651307448744774,
0.08566870540380478,
-0.01587478443980217,
0.07522104680538177,
-0.02152368053793907,
0.0008982240688055754,
0.092014841735363,
-0.029996735975146294,
0.042675793170928955,
-0.026987655088305473,
0.0077817440032958984,
-0.07385731488466263,
-0.05116580054163933,
-0.0037684706039726734,
0.06713367998600006,
-0.005673110019415617,
0.018453342840075493,
-0.013746390119194984,
0.0404086634516716,
0.040685512125492096,
0.06589136272668839,
0.06050597503781319,
0.06338275223970413,
-0.0734039917588234,
-0.0096220001578331,
-0.02697676047682762,
0.0019820351153612137,
-0.03860293701291084,
0.03100772388279438,
0.1214737668633461,
-0.07014607638120651,
0.003461400978267193,
-0.021519802510738373,
0.03840629383921623,
-0.06783239543437958,
-0.005217063706368208,
0.06447606533765793,
0.03238193690776825,
-0.06057934835553169,
0.03747032955288887,
-0.025820165872573853,
-0.07063174992799759,
0.004014173056930304,
0.0484139621257782,
-0.02555878460407257,
-0.04523051157593727,
0.03160782903432846,
-0.03895054757595062,
-0.05048536881804466,
0.028724968433380127,
-0.06865589320659637,
-0.07734983414411545,
-0.020090613514184952,
-0.02153259702026844,
0.05856041610240936,
-0.01932457834482193,
-0.07062539458274841,
0.009838543832302094
] | 14,319 |
14,322 |
MASTER-SAAO: new OT outburst with ampl>4.7m
|
O. Gress, V. Lipunov, V. Kornilov, E. Gorbovskoy, N. Tyurina, P. Balanutsa, A. Kuznetsov, F. Balakin, V. Vladimirov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, V. Topolev, K. Zhirkov, A. Pozdnyakov, D. Kuvshinov, V. Shumkov, T. Pogrosheva, Ya. Kechin (Lomonosov MSU), R. Podesta, F. Podesta, C. Francile (OAFA), D. Buckley (SAAO), R. Rebolo, M. Serra-Ricart (IAC), N. Budnev (ISU), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
|
MASTER OT J151726.86-742404.1 discovery - optical outburst with ampl>4.7m
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 15h 17m 26.86s -74d 24m 04.1s on 2021-01-13.95986 UT.
The OT unfiltered magnitude is 17.3 at 2021-01-13 23:02:12UT (mlim=19.9).
The OT is seen at 2 images in 2021, and at 8images in 2014,2018 for ex., at 2014-12-19 23:25:53UT with unfiltered mOT=17.6, at 2018-09-20 18:55:20UT with unfiltered mOT=17.9.
We have reference image on 2020-03-21.86358 UT with unfiltered mlim= 20.5m.
There is no any sources in VIZIER inside 3". Spectral observations are required.
The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/151726.86-742404.1.png
|
2021-01-15 02:07:00
|
optical,cataclysmic variable,transient,variables,request for observations
|
2021-01-15
|
02:07:00
| 802 |
[
0.0015375865623354912,
-0.03699754551053047,
-0.058357179164886475,
0.01448777038604021,
0.04602807015180588,
-0.03275933116674423,
-0.0011307572713121772,
0.0352378711104393,
0.02075337804853916,
-0.0030542423482984304,
-0.04749584197998047,
-0.02878139354288578,
-0.035580746829509735,
0.013807161711156368,
0.047279104590415955,
0.001579273259267211,
0.06630749255418777,
-0.0632934421300888,
0.030059093609452248,
0.026026438921689987,
0.010549407452344894,
-0.025398705154657364,
-0.019967081025242805,
-0.00573592446744442,
0.0278288833796978,
0.015606461092829704,
-0.13670901954174042,
0.005820414517074823,
-0.07096252590417862,
0.0016081982757896185,
-0.05483919754624367,
0.048463426530361176,
-0.047336578369140625,
-0.008193698711693287,
0.03448708355426788,
0.09797754138708115,
-0.04427935928106308,
-0.06834793835878372,
-0.020242443308234215,
0.0969829335808754,
-0.042594097554683685,
-0.021451342850923538,
-0.026267245411872864,
0.051158204674720764,
-0.05028630048036575,
0.027008850127458572,
0.013717405498027802,
-0.06007516384124756,
-0.014685876667499542,
-0.055809058248996735,
-0.004864069167524576,
0.005109736695885658,
0.005272720940411091,
0.058058906346559525,
-0.011836635880172253,
-0.023071499541401863,
-0.08003855496644974,
-0.03195362538099289,
0.03830986097455025,
-0.04234492406249046,
0.025786928832530975,
-0.06983646750450134,
-0.09740453958511353,
-0.012023293413221836,
0.00964356493204832,
-0.05169139802455902,
-0.05715141072869301,
-0.010866007767617702,
0.038090310990810394,
0.034068044275045395,
-0.03791271150112152,
0.09394736588001251,
-0.10628187656402588,
-0.08417730033397675,
-0.08259081095457077,
0.03533099964261055,
0.07299980521202087,
0.0397854819893837,
0.0755087286233902,
-0.07961093634366989,
0.015492144040763378,
0.07786276191473007,
-0.013147581368684769,
-0.014105694368481636,
-0.004650881979614496,
0.003924478776752949,
0.029064146801829338,
0.06523162126541138,
0.001579403062351048,
0.004129872657358646,
0.14266718924045563,
0.06532818078994751,
-0.02749256230890751,
-0.022306885570287704,
0.015877339988946915,
0.06091466546058655,
0.02810097485780716,
-0.04864359647035599,
0.014218821190297604,
-0.010043651796877384,
0.05361402407288551,
-0.044629212468862534,
-0.0938338190317154,
0.022634979337453842,
-0.04305027797818184,
-0.0021969059016555548,
0.0567801371216774,
0.02408219687640667,
-0.023676233366131783,
0.04425183683633804,
-0.09975364804267883,
0.038323961198329926,
0.04000813141465187,
0.019603652879595757,
0.04399500787258148,
0.04392746090888977,
0.024105994030833244,
0.08302765339612961,
-0.09517918527126312,
0.04844113066792488,
-0.021444451063871384,
-0.006019743159413338,
0.061318233609199524,
0.099811851978302,
0.03323490172624588,
0.06070441007614136,
-0.017435213550925255,
7.329454865874605e-33,
0.05193019658327103,
0.02931518666446209,
-0.013836290687322617,
-0.008402522653341293,
-0.020167289301753044,
0.047996602952480316,
-0.12129093706607819,
0.06973397731781006,
-0.01680012047290802,
-0.0074305166490375996,
-0.08007144927978516,
0.012534762732684612,
0.0003795866505242884,
0.0007379938615486026,
0.012648827396333218,
0.022485889494419098,
-0.0007904149824753404,
0.03551590070128441,
-0.11593139916658401,
-0.021070845425128937,
-0.01824239268898964,
0.049674682319164276,
-0.03581799566745758,
-0.026137838140130043,
0.01348472386598587,
0.03499257564544678,
0.06596910208463669,
-0.017947688698768616,
-0.10723184049129486,
0.022096600383520126,
0.03162846341729164,
-0.07734169811010361,
-0.03876267746090889,
0.046640545129776,
-0.016267314553260803,
-0.012447986751794815,
-0.07470083236694336,
-0.0008946663001552224,
-0.05326429754495621,
-0.08139953762292862,
-0.008983761072158813,
0.016318438574671745,
-0.03701326251029968,
0.09145577996969223,
0.06372131407260895,
-0.00006533238774864003,
0.044235628098249435,
0.08641062676906586,
-0.028599729761481285,
-0.024386612698435783,
-0.05823815241456032,
0.04304550215601921,
-0.08718664944171906,
-0.015167799778282642,
0.0633663460612297,
0.10885845124721527,
0.08110161125659943,
-0.016780376434326172,
-0.04444071277976036,
0.0025823251344263554,
-0.030822478234767914,
-0.026078734546899796,
-0.014640727080404758,
-0.06254873424768448,
-0.0008928399183787405,
0.046055763959884644,
-0.08502715080976486,
0.10167669504880905,
-0.02355554699897766,
-0.03695744276046753,
0.007302176672965288,
-0.08573104441165924,
-0.006853172089904547,
-0.01306412648409605,
0.014294642023742199,
-0.05330527946352959,
0.018658045679330826,
0.02881217934191227,
-0.004685626830905676,
0.04907035082578659,
-0.11113230884075165,
-0.03551798686385155,
-0.0034271548502147198,
-0.12160225957632065,
-0.09915737807750702,
-0.06463725119829178,
0.001664494862779975,
0.011728926561772823,
-0.00546101201325655,
-0.06501387804746628,
0.09406968206167221,
-0.04192305728793144,
0.09055156260728836,
-0.013867308385670185,
-0.10526438802480698,
-9.446546640328438e-33,
0.006892774719744921,
-0.01938866823911667,
-0.028279386460781097,
-0.019797025248408318,
0.03457602858543396,
0.08428896218538284,
-0.017561232671141624,
0.004477821756154299,
-0.07025792449712753,
-0.05234341695904732,
-0.047144509851932526,
0.01973770372569561,
-0.08628138899803162,
-0.09165453910827637,
0.03276713192462921,
0.007153571583330631,
0.00652682688087225,
0.05243784561753273,
-0.0836733803153038,
-0.021532943472266197,
-0.011168158613145351,
-0.01819983683526516,
0.04375877231359482,
0.03606924042105675,
-0.0627276673913002,
0.016318611800670624,
0.052397534251213074,
-0.08368927240371704,
-0.012495089322328568,
0.08182086795568466,
-0.03661753982305527,
-0.056252483278512955,
-0.0699826329946518,
0.06725017726421356,
0.017615793272852898,
0.03974607586860657,
0.06580613553524017,
-0.033275626599788666,
-0.11988218128681183,
0.08320140093564987,
0.07951146364212036,
0.06214118376374245,
-0.016133762896060944,
-0.044453270733356476,
-0.01589534804224968,
0.021677063778042793,
-0.031552139669656754,
0.06819910556077957,
-0.01694376766681671,
-0.002581667387858033,
-0.03352906182408333,
-0.04964781925082207,
-0.03158833459019661,
0.06500492244958878,
0.02457292377948761,
0.05457822233438492,
0.008669478818774223,
0.047511547803878784,
-0.02657909318804741,
-0.08579208701848984,
0.032211463898420334,
-0.05829727277159691,
0.0006428740452975035,
0.06128157302737236,
0.03698315471410751,
-0.04666133224964142,
0.03350532427430153,
0.1100749745965004,
0.01872265338897705,
0.01748775877058506,
0.019667526707053185,
-0.08991240710020065,
-0.05118364468216896,
-0.006611299235373735,
0.0312887467443943,
0.03370789811015129,
0.017635708674788475,
-0.03782714903354645,
-0.015756431967020035,
-0.018583079800009727,
-0.0621773935854435,
0.057545751333236694,
-0.003053070046007633,
0.01396788191050291,
0.06293982267379761,
-0.00537585373967886,
-0.022343730553984642,
-0.14100106060504913,
-0.03947873041033745,
0.024404482915997505,
0.002752352971583605,
0.075615294277668,
0.012919558212161064,
0.10898060351610184,
0.04268871992826462,
-6.800240015536474e-8,
0.04813412204384804,
0.035299960523843765,
0.062833271920681,
0.0257992222905159,
-0.027773156762123108,
-0.0858704224228859,
-0.007379882037639618,
0.037727490067481995,
-0.06592655926942825,
0.07510902732610703,
0.03664977103471756,
-0.004472042433917522,
0.09345511347055435,
-0.029359078034758568,
0.03410547971725464,
-0.0062166061252355576,
0.02749115414917469,
-0.05228633061051369,
-0.0355200357735157,
0.002104078186675906,
0.022620463743805885,
0.013401277363300323,
0.007937849499285221,
0.019876256585121155,
0.012753153219819069,
0.06797322630882263,
0.06370947510004044,
0.02827058732509613,
0.060881566256284714,
-0.009039068594574928,
-0.016901995986700058,
-0.005445030517876148,
0.04662622883915901,
-0.057931721210479736,
0.019054165109992027,
0.13983473181724548,
-0.060623954981565475,
0.029230663552880287,
0.010604185983538628,
0.0860256627202034,
-0.06510476768016815,
-0.04294801130890846,
0.01733040064573288,
0.050573982298374176,
-0.013237029314041138,
0.07813581079244614,
-0.03312208130955696,
-0.02599536068737507,
-0.007123359479010105,
0.016120025888085365,
-0.005074047949165106,
-0.03463384136557579,
-0.014119671657681465,
-0.028615867719054222,
-0.07017257809638977,
0.02427939511835575,
-0.07699187099933624,
-0.05991737172007561,
-0.03499731421470642,
-0.028263844549655914,
0.02027583122253418,
-0.010877955704927444,
-0.11934376507997513,
-0.016236696392297745
] | 14,320 |
14,323 |
Outburst of comet 29P/Schwassmann-Wachmann 1
|
Zhong-Yi Lin (IANCU)), Wing-Huen Ip (IANCU),Chi-Sheng Lin (IANCU), Hsiang-Yao Hsiao (IANCU), Wei-Jie Hou(IANCU), Hung-Chin Lin(IANCU)
|
We report that an outburst of comet 29P/Schwassmann-Wachmann 1 was detected by using the images acquired with the SLT (16â Ritchey-Chretien telescope) at Lulin observatory. The outburst was observed to begin on 2021 January 14 with its brightness in V-band suddenly increasing by ~1.6 mag (from 16.6 mag to 15.0 mag), as measured through a 5.6 arcsec (10,000 km) aperture. Although the outburst event was relatively smaller than our previously reported last November (Atel #14207), the duration of two outbursts is consistent with Trigo-Rodriquezâs results (2008) who concluded that the average outburst rate is 7.3 events per year. Now, the central nuclear region was quite concentrated (https://www.astro.ncu.edu.tw/people/zylin/29P_202101.html) and the brightness might be increasing from time to time. Follow-up observations of comet 29P/S-W 1 is highly recommended.
|
2021-01-15 16:50:00
|
optical,comet
|
2021-01-15
|
16:50:00
| 874 |
[
-0.06371896713972092,
0.012159117497503757,
0.04856161028146744,
0.04392442852258682,
0.08204209059476852,
-0.013300024904310703,
-0.07204575836658478,
0.1251051127910614,
-0.04493342712521553,
0.043796733021736145,
0.030771946534514427,
-0.06936487555503845,
0.03559734672307968,
-0.03980133309960365,
0.04080294817686081,
-0.012659094296395779,
-0.0020649307407438755,
-0.08753063529729843,
0.025969624519348145,
-0.039121706038713455,
-0.0769040510058403,
0.010762262158095837,
-0.031332388520240784,
0.014850065112113953,
0.05367982015013695,
0.053746726363897324,
-0.0025443481281399727,
-0.0031482649501413107,
0.010590809397399426,
-0.005075083114206791,
0.05648469179868698,
0.035009998828172684,
-0.03211822733283043,
-0.009951706044375896,
0.08145026862621307,
-0.019711652770638466,
0.018193138763308525,
-0.053948864340782166,
0.035767581313848495,
0.02876117452979088,
0.03608020767569542,
-0.013670919463038445,
-0.004674274008721113,
-0.09596465528011322,
-0.015139065682888031,
-0.011634577997028828,
-0.0515332892537117,
-0.0037218776997178793,
-0.07482161372900009,
0.044582393020391464,
0.016381269320845604,
-0.053713418543338776,
0.09216480702161789,
0.018816327676177025,
0.02742825448513031,
0.005931360647082329,
-0.039471473544836044,
0.013176715932786465,
0.11746227741241455,
0.018803328275680542,
-0.04979178309440613,
0.0015375630464404821,
-0.06309763342142105,
-0.051303163170814514,
0.011737787164747715,
-0.03400780260562897,
-0.0005143278976902366,
-0.04521450027823448,
0.07905137538909912,
0.04987351596355438,
0.058629389852285385,
0.08705847710371017,
-0.07934197783470154,
-0.06278608739376068,
-0.0625711977481842,
0.00573445949703455,
0.04919831454753876,
-0.006691685412079096,
0.017929812893271446,
0.0012215906754136086,
0.001484127715229988,
0.032303694635629654,
0.044546615332365036,
-0.14473946392536163,
-0.004824344534426928,
0.02605587989091873,
-0.007840286940336227,
0.05752009153366089,
0.016896989196538925,
0.01812773197889328,
0.02566010318696499,
-0.04123258963227272,
0.03204827010631561,
0.05001702532172203,
0.01564500294625759,
0.03414418548345566,
0.06270530819892883,
-0.02163325995206833,
0.04061507061123848,
0.041015494614839554,
0.003659918438643217,
-0.018719015643000603,
-0.03809944912791252,
0.05159835144877434,
-0.043047647923231125,
0.019418014213442802,
0.019082343205809593,
0.007968741469085217,
-0.0627925768494606,
0.028780745342373848,
0.04348437860608101,
-0.020596997812390327,
0.024643437936902046,
-0.16532352566719055,
0.016427289694547653,
-0.005523377098143101,
-0.010667717084288597,
0.04556185379624367,
-0.11033657938241959,
0.0012916324194520712,
0.06858140975236893,
0.0011527999304234982,
-0.017896505072712898,
0.08473854511976242,
0.03153000771999359,
0.024454299360513687,
-0.02083330787718296,
4.757889792086012e-33,
0.07904335111379623,
-0.011072077788412571,
-0.05238749459385872,
0.005848750937730074,
-0.03337995335459709,
0.01893908903002739,
-0.01023971289396286,
0.11144928634166718,
-0.059778280556201935,
-0.07967044413089752,
-0.010100537911057472,
-0.026113037019968033,
0.03212103247642517,
-0.031130075454711914,
-0.042264655232429504,
0.017972702160477638,
0.09223784506320953,
0.04145556315779686,
-0.07458039373159409,
0.05563569813966751,
-0.03404708951711655,
-0.06256190687417984,
-0.045842163264751434,
-0.034367647022008896,
0.01629195734858513,
0.05792411416769028,
0.06283405423164368,
-0.025830887258052826,
-0.05409356951713562,
0.020500684157013893,
0.03775060549378395,
-0.008462557569146156,
0.03187786787748337,
0.05953720957040787,
-0.06014986336231232,
-0.04705571010708809,
-0.051110636442899704,
-0.03705790266394615,
-0.02317936159670353,
-0.03529716655611992,
0.017296602949500084,
0.016371283680200577,
-0.11743003129959106,
0.0070329993031919,
0.04267987236380577,
-0.001041796407662332,
0.029425211250782013,
-0.039539534598588943,
0.049839943647384644,
-0.06523695588111877,
-0.010441104881465435,
0.04477053880691528,
-0.02369624935090542,
0.09873455762863159,
0.08846895396709442,
0.025586269795894623,
0.06509019434452057,
-0.11534984409809113,
0.04541097208857536,
0.04556962847709656,
0.07528295367956161,
-0.025446046143770218,
-0.019463330507278442,
0.020534880459308624,
0.005689506884664297,
0.03116650879383087,
-0.032922327518463135,
-0.002659210469573736,
-0.006013527978211641,
0.04143393039703369,
-0.037908606231212616,
0.01885855756700039,
0.019377993419766426,
-0.04522928595542908,
0.032444339245557785,
-0.07592371851205826,
0.01610931009054184,
0.01607258804142475,
-0.030325869098305702,
0.046654652804136276,
-0.019492609426379204,
-0.04540473222732544,
0.06721126288175583,
-0.06332799792289734,
-0.0731579065322876,
-0.036057692021131516,
-0.016986800357699394,
-0.014582701958715916,
0.004698109347373247,
-0.05585728958249092,
0.013366060331463814,
-0.05853879079222679,
0.012825376354157925,
0.03921171650290489,
-0.07890956848859787,
-5.033705215169061e-33,
-0.014605581760406494,
0.12768445909023285,
-0.10624613612890244,
-0.0009040560689754784,
-0.02521353028714657,
0.03443223983049393,
0.023836767300963402,
0.11180165410041809,
-0.12013537436723709,
-0.0931468978524208,
0.017108257859945297,
-0.026155903935432434,
-0.08302460610866547,
-0.07345784455537796,
0.03508425131440163,
0.012277047149837017,
0.06647887825965881,
0.03114621713757515,
0.025501199066638947,
0.03294841945171356,
0.01600159890949726,
-0.08787108957767487,
0.021226869896054268,
-0.10782386362552643,
0.03166474774479866,
0.01268821768462658,
0.07466286420822144,
-0.07736767083406448,
0.0007127006538212299,
0.04816659912467003,
-0.16286776959896088,
0.011890173889696598,
-0.019810061901807785,
0.016000064089894295,
0.049997687339782715,
0.06619109958410263,
0.022914739325642586,
-0.0038029025308787823,
-0.024812353774905205,
-0.04669911786913872,
-0.026988252997398376,
0.07670895755290985,
0.005425746086984873,
0.031428705900907516,
0.011166796088218689,
-0.020094506442546844,
0.03105359897017479,
0.12213009595870972,
0.014632376842200756,
-0.032194316387176514,
-0.000911679002456367,
-0.020167779177427292,
0.009468535892665386,
0.05073448643088341,
-0.017584441229701042,
-0.04016060382127762,
0.022900253534317017,
-0.00891716219484806,
-0.03515318036079407,
-0.08708547055721283,
-0.0035948960576206446,
0.021601200103759766,
-0.04554944485425949,
0.05166184529662132,
0.04420826956629753,
-0.028013091534376144,
-0.011353248730301857,
0.040121253579854965,
0.003561984980478883,
0.01780048757791519,
0.007975428365170956,
-0.03017662838101387,
0.04280862212181091,
0.025704918429255486,
0.0502440370619297,
0.018855685368180275,
-0.04094575345516205,
-0.030824951827526093,
0.022725315764546394,
0.013264141976833344,
-0.06065400689840317,
0.035604726523160934,
0.015389804728329182,
-0.07264857739210129,
0.06087663024663925,
0.0851636752486229,
-0.018418682739138603,
-0.08566544204950333,
-0.019975805655121803,
-0.00414805905893445,
-0.06906618922948837,
-0.021927861496806145,
-0.0767127200961113,
0.04037395864725113,
0.07130353897809982,
-6.006366959354636e-8,
0.06379994750022888,
-0.014540662989020348,
-0.10483025014400482,
0.021051958203315735,
0.07434786111116409,
-0.05441896244883537,
-0.019068602472543716,
0.046935491263866425,
0.021794812753796577,
0.055797278881073,
0.06926990300416946,
0.013909401372075081,
0.037896547466516495,
0.009870431385934353,
0.021037088707089424,
-0.008353936485946178,
-0.02938191220164299,
-0.08174213021993637,
-0.03415257856249809,
0.012462804093956947,
0.05547289922833443,
0.04024288058280945,
0.0839596763253212,
-0.06986097246408463,
-0.026531187817454338,
0.06415977329015732,
-0.054038044065237045,
0.11886969208717346,
-0.07530336827039719,
-0.10938040912151337,
-0.022999854758381844,
-0.060368943959474564,
0.005890796892344952,
-0.08276811987161636,
0.00589120015501976,
0.10168172419071198,
-0.06979840993881226,
0.017930924892425537,
0.062736876308918,
0.009472151286900043,
-0.030414758250117302,
0.0194082148373127,
0.10292580723762512,
0.04464206099510193,
-0.015275631099939346,
-0.005611071363091469,
-0.003299290779978037,
-0.06509656459093094,
0.07182639837265015,
-0.02845352329313755,
-0.0744125172495842,
-0.03137684240937233,
0.009069413878023624,
-0.08714718371629715,
-0.023660873994231224,
-0.011575025506317616,
-0.014463642612099648,
-0.09744249284267426,
-0.037718530744314194,
0.008648750372231007,
0.09950026869773865,
-0.06620088219642639,
-0.09265222400426865,
0.01797906868159771
] | 14,321 |
14,324 |
Spectroscopic observation of ZTF21aabifad
|
Monika Soraisam (NCSA/UIUC), Kevin McKinnon, Rafael Nunez, Stephanie Figuereo, Puragra Guhathakurta (UCSC), Chien-Hsiu Lee (NOIR Lab), Jenna Samuel (UCD), Jon Rees (Lick Observatory)
|
We report the spectroscopic observation of the transient ZTF21aabifad/AT2021tm from the SALVATION project. This source was flagged from the ZTF public alert stream by a filter customized to find transients in M31 on the ANTARES alert-broker (https://antares.noirlab.edu/loci/ANT2021axld4). It is located on the outskirts of M31 (RA 0h40m44.02s, Dec +39d19m5.99s; J2000).
On 2021 Jan 14 UT, we obtained the spectrum of this source with the Kast double spectrograph on the Shane 3 m telescope at Lick Observatory. The spectrum shows a blue featureless continuum, while the light curve of the transient exhibits a slow rate of rise (around 0.2 mag/day), which is atypical for other eruptive events such as novae or dwarf-novae. We conclude it is likely a young supernova in a background galaxy.
We thank the staff of Lick Observatory for their help in executing the ToO observation.
|
2021-01-16 02:41:00
|
optical,nova,supernovae,transient
|
2021-01-16
|
02:41:00
| 881 |
[
-0.0879790410399437,
-0.01852833852171898,
-0.04731806740164757,
0.0865088701248169,
0.0685213953256607,
-0.021947866305708885,
-0.06332703679800034,
0.03865562379360199,
0.01894342340528965,
0.026118488982319832,
0.04580749198794365,
-0.07575421780347824,
0.0838530883193016,
0.03348715230822563,
0.000648700981400907,
-0.03251320868730545,
0.007770387921482325,
-0.13535603880882263,
0.0008285375079140067,
0.03571248799562454,
-0.024992002174258232,
0.07876397669315338,
0.008200952783226967,
0.017191069200634956,
0.04596179351210594,
-0.026474814862012863,
-0.06320003420114517,
-0.03956558555364609,
0.05655388534069061,
-0.028556877747178078,
0.050520218908786774,
0.09025752544403076,
-0.0575266107916832,
0.0196306761354208,
0.09041929244995117,
-0.03542120009660721,
0.07023538649082184,
0.03252867981791496,
0.04549872502684593,
0.000474819476949051,
0.03679642081260681,
-0.03950187936425209,
-0.04027699679136276,
-0.04069219157099724,
-0.0584036223590374,
0.04436766728758812,
-0.016516001895070076,
-0.07241950184106827,
-0.06700507551431656,
0.004941785242408514,
-0.012649936601519585,
0.0176852960139513,
0.07319089770317078,
0.04931262880563736,
0.03981390222907066,
0.02535470761358738,
-0.06240665912628174,
-0.06236011162400246,
0.08290491998195648,
0.010445102117955685,
0.045377105474472046,
-0.030440565198659897,
-0.04397669807076454,
-0.05704951658844948,
0.04027207940816879,
0.04591680318117142,
-0.03361910209059715,
-0.03403417021036148,
0.0648297443985939,
-0.10969455540180206,
-0.062483835965394974,
0.008929779753088951,
0.030622728168964386,
-0.025332093238830566,
0.032282985746860504,
0.04395030811429024,
0.049782074987888336,
-0.003123230068013072,
-0.016851669177412987,
-0.0776766687631607,
0.08172722160816193,
-0.059311818331480026,
0.010218024253845215,
-0.03350810706615448,
0.021628255024552345,
0.030516520142555237,
0.03128292039036751,
0.043200843036174774,
-0.011440280824899673,
0.046763986349105835,
0.0009510781383141875,
0.02304486744105816,
-0.055695541203022,
0.03599819913506508,
0.010229085572063923,
-0.017573917284607887,
0.052319224923849106,
0.005742128938436508,
0.08790849149227142,
0.05696212127804756,
0.08406185358762741,
0.006703357677906752,
0.01124637108296156,
0.027097929269075394,
-0.03374282270669937,
-0.017976228147745132,
0.034270938485860825,
0.048932336270809174,
-0.007054598070681095,
0.05855263024568558,
0.05145939812064171,
-0.0011671165702864528,
-0.006523348856717348,
-0.1259605437517166,
0.021852001547813416,
0.040335800498723984,
-0.06077350676059723,
0.058417726308107376,
-0.08883036673069,
-0.07222326844930649,
0.04625717177987099,
-0.018740156665444374,
0.0018632446881383657,
0.050692129880189896,
0.04952993616461754,
0.08414538949728012,
-0.05112089589238167,
7.000318651696272e-33,
0.06229023635387421,
0.07662305980920792,
-0.08262360841035843,
-0.029133418574929237,
0.007281034719198942,
0.027165032923221588,
-0.08819478005170822,
0.049957044422626495,
-0.0024170123506337404,
-0.04650939255952835,
-0.03437861427664757,
0.03829730674624443,
0.019369954243302345,
-0.059468187391757965,
-0.11463584005832672,
-0.0454782098531723,
0.02006959170103073,
-0.02393925003707409,
-0.10595231503248215,
0.01420664880424738,
0.00852601695805788,
0.03514406085014343,
-0.03982168063521385,
-0.004619236569851637,
0.07009151577949524,
0.03689112141728401,
0.029282426461577415,
0.008085501380264759,
-0.049728453159332275,
0.03862227126955986,
0.010499639436602592,
0.02174748107790947,
-0.06727973371744156,
-0.022963613271713257,
-0.008561688475310802,
-0.05868224799633026,
-0.051050376147031784,
-0.04984550178050995,
-0.032349880784749985,
-0.10421812534332275,
0.007018296979367733,
0.050136178731918335,
-0.07760611176490784,
0.04301435500383377,
0.011124126613140106,
-0.011627589352428913,
0.032780613750219345,
0.01799940876662731,
0.06244340538978577,
-0.03662702441215515,
-0.04329029098153114,
0.0018326051067560911,
-0.10578542947769165,
-0.0021090498194098473,
-0.024492153897881508,
0.059242941439151764,
0.019551848992705345,
-0.06649541854858398,
0.03462528809905052,
0.02502863109111786,
0.084527388215065,
0.013531249016523361,
-0.02736472524702549,
-0.0008103503496386111,
-0.01218911912292242,
0.006620748434215784,
-0.06505028903484344,
0.028585869818925858,
-0.00035819117329083383,
0.04756107181310654,
-0.03258167952299118,
0.017560536041855812,
0.09911319613456726,
-0.0614469088613987,
0.0236966572701931,
-0.06860830634832382,
0.018446937203407288,
0.04935818910598755,
0.012134019285440445,
0.024487439543008804,
-0.08907409012317657,
-0.03404508903622627,
0.044367749243974686,
-0.006804138422012329,
-0.021706802770495415,
-0.01696922443807125,
-0.03137665241956711,
-0.009919172152876854,
-0.06411667168140411,
-0.04869955778121948,
0.027115335687994957,
-0.03973367437720299,
0.06309016793966293,
-0.047314830124378204,
-0.11003714799880981,
-5.87158509880771e-33,
0.05396442115306854,
0.05685470625758171,
-0.053129781037569046,
-0.0051139784045517445,
0.014815017580986023,
0.008919226936995983,
0.0318073146045208,
0.1533682942390442,
-0.06129607930779457,
-0.08986924588680267,
0.07500191777944565,
0.022682132199406624,
-0.043018996715545654,
-0.061362698674201965,
0.024267667904496193,
-0.03424694016575813,
0.06507348269224167,
-0.04531064257025719,
-0.006155981216579676,
0.053368326276540756,
-0.015304108150303364,
-0.03951606899499893,
-0.05455751344561577,
-0.061439502984285355,
-0.04483339563012123,
0.12149285525083542,
0.11087143421173096,
-0.040987543761730194,
-0.028171051293611526,
0.040883831679821014,
-0.1269230991601944,
0.057022854685783386,
-0.05469748377799988,
-0.042235929518938065,
-0.05051830783486366,
0.02061823569238186,
0.04224305599927902,
-0.0813354030251503,
-0.13406461477279663,
-0.09635117650032043,
-0.024055877700448036,
0.11239487677812576,
-0.05708359554409981,
0.02149786613881588,
-0.014348478056490421,
0.020368505269289017,
0.005476451478898525,
0.0445864275097847,
0.021836748346686363,
-0.022376898676156998,
0.07353746145963669,
0.049735549837350845,
0.020352335646748543,
0.051134154200553894,
0.015505542047321796,
0.018110526725649834,
0.024657966569066048,
0.01911485195159912,
-0.020937509834766388,
-0.005592225585132837,
0.040655963122844696,
0.03032565489411354,
-0.0076353237964212894,
-0.005630129482597113,
0.07185021787881851,
-0.01637793704867363,
0.004110581241548061,
0.041743166744709015,
0.01422685757279396,
0.03934524208307266,
0.0860266238451004,
0.03686767816543579,
-0.079457588493824,
-0.04826963320374489,
0.0672871544957161,
0.0570027194917202,
-0.04450053349137306,
-0.06284639984369278,
-0.02820092998445034,
-0.0023468455765396357,
-0.0008931870106607676,
-0.0003990565601270646,
-0.02828444540500641,
0.04227744787931442,
0.0450231209397316,
-0.02935413271188736,
-0.03366902843117714,
-0.07327760010957718,
-0.01918136514723301,
-0.03775782510638237,
-0.07448510825634003,
0.024664806202054024,
-0.0854283943772316,
0.05606873333454132,
0.06846338510513306,
-5.981101480756479e-8,
0.012893708422780037,
0.04114778712391853,
-0.06715212017297745,
-0.021309657022356987,
0.07167655974626541,
-0.03826860338449478,
0.028544247150421143,
0.02352972701191902,
-0.05139944329857826,
-0.0036091250367462635,
0.02423923648893833,
0.03680064156651497,
0.059279605746269226,
-0.04262009635567665,
0.05616394430398941,
-0.006606199312955141,
-0.10278202593326569,
-0.05122560262680054,
-0.06936082243919373,
0.021352652460336685,
0.01780964992940426,
0.07217681407928467,
0.0122494176030159,
-0.05306944623589516,
0.031677648425102234,
0.03696580231189728,
0.021508976817131042,
0.09997757524251938,
0.038928620517253876,
-0.07556943595409393,
-0.054600223898887634,
-0.051014598459005356,
0.03318352624773979,
-0.0374148003757,
-0.0037637441419065,
0.04785178601741791,
-0.06656261533498764,
-0.02071746252477169,
0.02166939713060856,
0.038178034126758575,
0.02038257010281086,
-0.019930440932512283,
0.012471810914576054,
0.06079778075218201,
-0.039971619844436646,
-0.016249772161245346,
-0.047836851328611374,
-0.02758275717496872,
0.05389075726270676,
0.07460831105709076,
-0.1072893813252449,
0.016375867649912834,
0.007133060600608587,
-0.006207318976521492,
-0.03904153034090996,
-0.004962040111422539,
-0.028935439884662628,
-0.08235550671815872,
-0.02579929493367672,
0.05682520568370819,
0.13945694267749786,
-0.0669049471616745,
-0.08006269484758377,
0.008912047371268272
] | 14,322 |
14,325 |
A very stringent upper limit to the mass-loss rate of the Type Ia SN2021J from e-MERLIN radio observations
|
M. Perez-Torres (IAA-CSIC, Granada), J. Moldon (IAA-CSIC, Granada; JBCA, Manchester), P. Lundqvist (Stockholm University), J. Bray (JBCA), D. Venkattu (Stockholm)
|
We report the non-detection at radio wavelengths of the Type Ia SN 2021J discovered on 2021-01-01 11:44:04 at the position RA = 12:26:27.031 DEC = +31:13:20.59 in NGC 4414 (2021TNSTR...1...1E), at a distance of 16.6 Mpc (Kanbur et al. 2003, A&A, 411, 361), and classified as a Type Ia SN on UT 2021-01-04 (ATel #14300).
We observed SN 2021J on 2021-01-05 (from 22:45 UT till 07:40 on 2021-01-06) and 2021-01-08 (from 03:25 till 12:30 UT) with the electronic Multi-Element Radio Linked Interferometer Network (e-MERLIN) at a central frequency of 5.1 GHz, and with a bandwidth of 512 MHz. We found no evidence of radio emission from SN 2021J in either epoch above a 3-sigma upper limit of 45 and 60 microJy/beam, respectively, which correspond to upper limits of the monochromatic luminosity of 1.5E25 and 2.0E25 erg/s. Assuming that the first epoch happened 4.0 days after the explosion, the upper limits to the luminosity of SN 2021J correspond to 3-sigma upper limits to the mass-loss rate of the progenitor star of 7.8E-9 and 1.6E-8 solar masses per year at 4.0 days and 7.3 days after the SN explosion, for a presupernova wind of 100 km/s, using the same model as for previous Type Ia SNe (e.g., ATel #12411 for SN 2019np). The value of 7.8E-9 Msol/yr is one of the most stringent upper limits ever, only beaten by those obtained for SN 2011fe, SN 2012cg and SN 2014J, and at the same level as those for SN 2011by, SN 2011ek, SN 2012fr and SN 2012ht.
e-MERLIN is a National Facility operated by the University of Manchester at Jodrell Bank Observatory on behalf of STFC.
|
2021-01-18 14:38:00
|
radio,star,supernovae
|
2021-01-18
|
14:38:00
| 1,575 |
[
-0.07214603573083878,
-0.042875662446022034,
-0.01588129997253418,
0.028892813250422478,
0.06370148807764053,
0.008166693150997162,
-0.0019766532350331545,
-0.012434575706720352,
0.007583376951515675,
0.017301468178629875,
-0.006220453884452581,
-0.04225698113441467,
0.009244425222277641,
0.0333939753472805,
-0.041688065975904465,
-0.07905356585979462,
0.01659957319498062,
-0.16835884749889374,
0.05185467749834061,
0.005161925218999386,
-0.03879459574818611,
0.06437689810991287,
0.009680856950581074,
0.04068288952112198,
0.013795772567391396,
-0.059369951486587524,
-0.025440996512770653,
-0.03836857154965401,
0.001963109476491809,
-0.0033459514379501343,
0.02848450466990471,
0.09292467683553696,
0.009817829355597496,
0.018507814034819603,
-0.05093296244740486,
-0.054349400103092194,
0.05405762046575546,
0.0318283811211586,
0.026545386761426926,
0.020976824685931206,
0.06497754156589508,
-0.04836879298090935,
0.04652998596429825,
-0.03821433708071709,
-0.01181696355342865,
-0.0018682050285860896,
-0.04853571206331253,
-0.061115067452192307,
-0.11174473166465759,
0.026620883494615555,
0.060461655259132385,
-0.04140084609389305,
-0.00982541311532259,
0.03124161623418331,
0.0308780986815691,
-0.03634701296687126,
-0.07368612289428711,
-0.019749967381358147,
0.06840512156486511,
0.06373045593500137,
0.0815732553601265,
-0.04966676980257034,
-0.03621356934309006,
-0.030393628403544426,
0.07852470874786377,
0.04893570765852928,
-0.020214851945638657,
-0.021564122289419174,
0.04695212095975876,
-0.03509551286697388,
0.04838509112596512,
-0.007204660214483738,
-0.005116019397974014,
0.03881711885333061,
0.055231232196092606,
0.0800747349858284,
0.1232074424624443,
0.0460238978266716,
0.039674852043390274,
-0.007630165666341782,
-0.017250677570700645,
0.0053205713629722595,
-0.01295718178153038,
-0.012521068565547466,
0.02820243500173092,
-0.02481619268655777,
-0.08591990172863007,
0.08060494810342789,
-0.022018002346158028,
-0.04486183822154999,
-0.004889588337391615,
-0.006673699710518122,
-0.06433074921369553,
-0.013981321826577187,
0.06163022667169571,
0.04533856734633446,
0.039658866822719574,
0.05988307297229767,
-0.00417246064171195,
0.05128040164709091,
0.09015204757452011,
0.00698487414047122,
-0.08923967182636261,
0.06961774080991745,
-0.06689802557229996,
0.03564544767141342,
0.015440011397004128,
0.007023850921541452,
-0.014083322137594223,
0.015178634785115719,
0.009387831203639507,
0.033540014177560806,
-0.02611120603978634,
-0.07646843045949936,
-0.0785788744688034,
0.05057307705283165,
-0.03731855750083923,
0.07752501964569092,
0.04469466209411621,
0.009595857933163643,
-0.10517162829637527,
-0.0016275865491479635,
0.006299271713942289,
0.04634665325284004,
0.09901625663042068,
0.08109917491674423,
-0.0673774927854538,
4.766867997532402e-33,
-0.001239863457158208,
0.0641493871808052,
-0.02995786815881729,
0.024673452600836754,
-0.03182953596115112,
0.029557613655924797,
-0.0546254925429821,
0.03527826815843582,
-0.01625501550734043,
0.00016816869901958853,
-0.10073904693126678,
0.11648448556661606,
-0.02132791467010975,
-0.0713648647069931,
0.03573847562074661,
0.0214395672082901,
0.08062662184238434,
-0.06814561039209366,
-0.07603491097688675,
-0.0032908846624195576,
0.01770944893360138,
0.009547575376927853,
-0.022140435874462128,
0.00046631749137304723,
0.05573815107345581,
0.03691329434514046,
0.05162183195352554,
-0.04895578324794769,
0.03572433441877365,
0.027788162231445312,
-0.0028116879984736443,
0.025628237053751945,
0.006656890735030174,
0.026066390797495842,
0.06626224517822266,
-0.04933883994817734,
-0.056955136358737946,
0.05793197825551033,
-0.0011385477846488357,
0.007639588788151741,
0.11482533812522888,
0.06336954236030579,
-0.010688879527151585,
-0.03559720888733864,
0.09188288450241089,
-0.08359453827142715,
0.0028435932472348213,
0.007349033374339342,
-0.0049029248766601086,
0.06420312076807022,
-0.040001630783081055,
-0.050725094974040985,
-0.07012126594781876,
-0.00735255004838109,
0.04692908748984337,
0.02862771600484848,
0.029540348798036575,
0.02568264678120613,
0.015363099984824657,
0.008604207076132298,
0.047033458948135376,
-0.03316044434905052,
-0.006004763301461935,
0.04001510888338089,
-0.005542766768485308,
0.040581002831459045,
-0.051598794758319855,
-0.06165173649787903,
0.02258765511214733,
-0.0361337810754776,
0.04754503816366196,
0.04240603744983673,
0.05951470136642456,
-0.012796183116734028,
0.08152325451374054,
-0.08565189689397812,
-0.05353408306837082,
0.07344122231006622,
0.04999560862779617,
0.08781028538942337,
-0.06942787766456604,
0.02150801010429859,
0.0012780869146808982,
-0.009683054871857166,
-0.06867621093988419,
-0.0822182446718216,
-0.04986478388309479,
-0.007594722788780928,
0.0025812273379415274,
-0.03341643512248993,
0.056316547095775604,
0.02529335394501686,
-0.06559240818023682,
-0.0010993932373821735,
-0.058172985911369324,
-4.8895069558117066e-33,
0.004682728089392185,
-0.008473233319818974,
-0.009442158043384552,
-0.010404055938124657,
-0.060006920248270035,
0.008742794394493103,
0.10601486265659332,
0.10903989523649216,
0.0013767528580501676,
-0.0016709491610527039,
0.168814018368721,
-0.015782462432980537,
0.034266699105501175,
-0.0585157610476017,
0.030329836532473564,
-0.025208257138729095,
-0.006538516376167536,
0.0036670684348791838,
0.04646708071231842,
-0.009646539576351643,
0.06991079449653625,
0.00046161148929968476,
-0.0057253530248999596,
-0.005386617965996265,
-0.03038954921066761,
0.045928213745355606,
0.06294161081314087,
0.007032045628875494,
-0.03352281451225281,
0.011553795076906681,
-0.10170675069093704,
-0.011772493831813335,
-0.0029368570540100336,
-0.012536843307316303,
-0.005447089206427336,
0.010306443087756634,
0.09879031777381897,
0.00331416935659945,
-0.15894928574562073,
-0.05511067062616348,
0.01698220521211624,
0.12049584835767746,
-0.02401619963347912,
0.04651108384132385,
-0.02817503921687603,
-0.0036760056391358376,
-0.032085761427879333,
0.09184816479682922,
0.02911990135908127,
-0.0699547529220581,
0.027454271912574768,
-0.07420776039361954,
-0.007931148633360863,
0.0284411683678627,
-0.005470766685903072,
0.03253240883350372,
0.02801346220076084,
0.028233744204044342,
-0.061388079077005386,
0.027165865525603294,
0.07609546929597855,
-0.061721306294202805,
0.0046450300142169,
-0.024046117439866066,
0.039551664143800735,
-0.018550418317317963,
-0.0004972341121174395,
-0.005031702108681202,
0.042749401181936264,
-0.03654157742857933,
0.04508604481816292,
-0.05436788126826286,
-0.08027230948209763,
-0.10890641063451767,
0.04534418135881424,
-0.016873836517333984,
0.019101135432720184,
-0.050341278314590454,
0.0006370486808009446,
-0.09505396336317062,
-0.048307351768016815,
0.024668164551258087,
-0.027381833642721176,
0.051159247756004333,
0.10607745498418808,
0.043773800134658813,
0.01960578002035618,
-0.06434827297925949,
-0.08309819549322128,
-0.02623884752392769,
0.0055508664809167385,
0.03816652670502663,
-0.08002649992704391,
0.005947104189544916,
0.0250763650983572,
-6.19874356289074e-8,
-0.009048189967870712,
0.005056167021393776,
-0.06311023235321045,
-0.059561777859926224,
0.046255722641944885,
-0.020733589306473732,
-0.007784309331327677,
-0.029316268861293793,
0.04144767299294472,
0.045451175421476364,
0.009670211002230644,
-0.06352579593658447,
-0.02428802289068699,
-0.038265760987997055,
0.12430249899625778,
-0.07017111033201218,
-0.028246011584997177,
-0.05116482079029083,
-0.057551924139261246,
0.03159746155142784,
0.0187061857432127,
0.012202099896967411,
0.06856805831193924,
-0.06466644257307053,
0.006142077501863241,
-0.019894203171133995,
-0.007925058715045452,
0.027185222133994102,
0.054570890963077545,
-0.04741658642888069,
-0.075627900660038,
-0.048160370439291,
0.018652793020009995,
0.007495847065001726,
-0.10663291066884995,
0.042601510882377625,
-0.020169466733932495,
0.0171109177172184,
0.029790738597512245,
0.02988290600478649,
-0.04426039010286331,
-0.04368598386645317,
-0.059432435780763626,
0.036894284188747406,
0.01220350805670023,
-0.01575910672545433,
0.026036027818918228,
0.01815885119140148,
-0.031962957233190536,
-0.03900977969169617,
-0.04045472666621208,
-0.007300268858671188,
-0.017304152250289917,
-0.0874117910861969,
-0.0687687024474144,
-0.032422762364149094,
0.05197405442595482,
-0.12438637763261795,
0.0029323056805878878,
0.018132230266928673,
0.09509611874818802,
-0.14298352599143982,
-0.13491566479206085,
0.01243252120912075
] | 14,323 |
14,326 |
Spectroscopic classification of SN 2021aai as a young Type II SN
|
A. Reguitti (UNAB), A. Pastorello, G. Valerin (INAF-OAPd)
|
We report the spectroscopic classification of SN 2021aai (ZTF21aadoizf; Munoz-Arancibia et al. 2021, TNSTR, 112, 1) in the spiral galaxy NGC 2268, in the framework of the Nordic Optical Telescope (NOT) Unbiased Transient Survey 2 (NUTS2; ATel #8992, http://nuts.sn.ie ). The candidate was discovered by the Zwicky Transient Factory (ZTF; Bellm et al. 2019, Graham et al. 2019).
The observation was performed with the 2.56 m Nordic Optical Telescope equipped with ALFOSC (range 340-980 nm; resolution 1.4 nm), on 2021-01-17.89 (UT).
(1) The spectrum is that of a Type II SN about one week after the explosion, in agreement with the classification of Dahiwale et al. 2021, TNSCR, 8586, 1. The spectrum shows prominent Balmer lines and a weak He I 5876, with P Cygni profiles. From the position of the Halpha minimum, we infer an expansion velocity of the ejecta of about 6700 km/s. The faint absolute magnitude (M_r ~ -14.5 mag) suggests that SN 2021aai is a low-luminosity SN IIP (Pastorello et al. 2004, MNRAS, 347, 74; Spiro et al. 2014, MNRAS, 439, 2873). The redshift for the host galaxy is taken from Springob et al. 2005, ApJS, 160, 149.
|
2021-01-18 19:53:00
|
optical,supernovae,transient
|
2021-01-18
|
19:53:00
| 1,144 |
[
-0.11399928480386734,
-0.0673779621720314,
-0.03753533959388733,
0.042856670916080475,
0.036126650869846344,
-0.015524779446423054,
-0.0381271056830883,
0.04893774539232254,
0.055731624364852905,
-0.0325864739716053,
-0.01973102055490017,
0.01280366349965334,
-0.02384202368557453,
-0.02650422789156437,
-0.013281481340527534,
-0.03142690658569336,
0.024737194180488586,
-0.1084008738398552,
0.029100576415657997,
0.0647336021065712,
-0.01754489168524742,
0.10065522789955139,
-0.05399976298213005,
0.04632877558469772,
0.06023312360048294,
-0.035519566386938095,
-0.011292562820017338,
-0.03711538389325142,
0.03168391063809395,
-0.030382376164197922,
0.09622396528720856,
0.10677174478769302,
-0.06129331514239311,
0.01668132096529007,
0.022489776834845543,
-0.004887547809630632,
0.06435935199260712,
-0.03702018782496452,
0.023485178127884865,
-0.052317362278699875,
0.05679844319820404,
-0.05877452716231346,
0.020729374140501022,
-0.1014128029346466,
-0.013239918276667595,
-0.008610795252025127,
-0.02617722377181053,
-0.0697801262140274,
-0.10402827709913254,
0.02913554571568966,
0.01131862960755825,
-0.027417175471782684,
0.018127959221601486,
0.005048811435699463,
0.06881734728813171,
0.02820023149251938,
-0.04413007199764252,
-0.12420463562011719,
0.08881952613592148,
-0.02594187669456005,
0.05117266625165939,
-0.08609656989574432,
-0.03781959414482117,
-0.026991471648216248,
0.016514897346496582,
0.04958149045705795,
-0.016034068539738655,
-0.14108364284038544,
0.09432704746723175,
-0.04306146875023842,
-0.014232835732400417,
-0.006564251147210598,
-0.0013241523411124945,
0.04686978459358215,
0.029985075816512108,
0.07203266024589539,
0.09666760265827179,
-0.009638665243983269,
0.07077352702617645,
-0.06297123432159424,
0.057487912476062775,
0.01411756407469511,
-0.039519842714071274,
-0.010999240912497044,
-0.013108017854392529,
-0.0008605378097854555,
-0.038944412022829056,
0.10557350516319275,
-0.030594337731599808,
0.0329066663980484,
0.03321926295757294,
0.006854199804365635,
-0.049363162368535995,
-0.034115348011255264,
-0.017578864470124245,
0.008768738247454166,
0.031324900686740875,
0.00648230966180563,
0.04039887711405754,
0.05969355255365372,
0.09762045741081238,
-0.03378034383058548,
-0.03143641725182533,
0.0414251983165741,
-0.06832782179117203,
0.011238867416977882,
0.0729450136423111,
0.01983765885233879,
-0.03789864107966423,
0.033656634390354156,
0.06170768290758133,
0.04131205007433891,
-0.05169522762298584,
-0.1441662460565567,
0.014384602196514606,
0.03968409076333046,
-0.07147267460823059,
0.10436945408582687,
-0.04560103639960289,
0.028070414438843727,
-0.051537271589040756,
0.022537490352988243,
-0.044356562197208405,
0.024802429601550102,
0.08180604875087738,
0.0988193228840828,
-0.08468220382928848,
4.052146493739327e-33,
0.05499532073736191,
0.0610441155731678,
-0.03566201403737068,
0.012368928641080856,
-0.008876241743564606,
0.001311846193857491,
-0.088184654712677,
0.03444553166627884,
0.026347603648900986,
0.00198770547285676,
-0.07319680601358414,
0.007938379421830177,
-0.03066776879131794,
-0.04896918684244156,
-0.02255414053797722,
-0.00968486350029707,
0.08775372058153152,
-0.02651098370552063,
-0.07731544226408005,
-0.0112359169870615,
-0.02903430536389351,
0.04933343455195427,
-0.02114035002887249,
0.003790234448388219,
0.07744362205266953,
0.07079233229160309,
0.07933207601308823,
-0.03271111845970154,
-0.020527031272649765,
0.024152347818017006,
0.054853230714797974,
0.025405893102288246,
-0.03564312309026718,
0.006196010857820511,
0.033224403858184814,
-0.05380379408597946,
-0.08119820058345795,
0.00031826397753320634,
-0.007064561825245619,
-0.01685916818678379,
0.024305403232574463,
0.08312439918518066,
-0.08894921094179153,
0.0639515072107315,
0.05244900658726692,
-0.03922435641288757,
-0.030990062281489372,
0.05471960827708244,
0.05088060721755028,
0.005224798806011677,
0.021185215562582016,
-0.03184455260634422,
-0.049215227365493774,
0.02755562774837017,
0.03685294836759567,
0.039160747081041336,
0.019808825105428696,
-0.01484917476773262,
0.029510019347071648,
0.0016912576975300908,
0.10864799469709396,
-0.011931318789720535,
0.015261768363416195,
0.024330394342541695,
-0.009671862237155437,
0.053436897695064545,
-0.005836565047502518,
-0.002919914899393916,
-0.01454094983637333,
-0.03554956987500191,
-0.019068492576479912,
0.07180916517972946,
0.08330345153808594,
-0.0006803223513998091,
0.061929333955049515,
-0.05714477598667145,
0.03617192059755325,
0.09269317239522934,
0.07068120688199997,
0.05576493591070175,
-0.02765749953687191,
-0.03287103772163391,
0.021061956882476807,
-0.037528615444898605,
-0.10589969158172607,
0.03907793015241623,
-0.053608737885951996,
0.022557083517313004,
-0.017607634887099266,
-0.051619309931993484,
0.0801464095711708,
0.00015790671750437468,
-0.007599632255733013,
-0.020556654781103134,
-0.09304462373256683,
-3.640681961307263e-33,
0.03686835989356041,
-0.01969028450548649,
0.0008497923263348639,
-0.016271283850073814,
-0.02231973223388195,
0.05509857460856438,
0.01538852695375681,
0.08912923187017441,
-0.09506695717573166,
-0.07045681029558182,
0.10786628723144531,
0.05641293153166771,
-0.031322818249464035,
-0.08257903903722763,
0.05344945564866066,
-0.07149869948625565,
-0.00936474371701479,
-0.025012820959091187,
0.056008413434028625,
-0.004277211148291826,
0.03165972977876663,
-0.024257326498627663,
0.017168894410133362,
-0.0479147769510746,
-0.00909940805286169,
0.03835469111800194,
0.08305344730615616,
-0.026304375380277634,
-0.001072592567652464,
0.020377058535814285,
-0.010282321833074093,
0.0011705762008205056,
0.005791351664811373,
0.011434820480644703,
0.014457030221819878,
-0.013852326199412346,
0.05828339606523514,
-0.044278137385845184,
-0.14535556733608246,
-0.060185451060533524,
-0.020161867141723633,
0.13647164404392242,
0.0059435926377773285,
0.08138836920261383,
-0.03909321129322052,
-0.054532069712877274,
0.00752871623262763,
0.015696240589022636,
0.03655550256371498,
-0.035772986710071564,
0.012137303128838539,
-0.004271869547665119,
-0.019293464720249176,
0.061542339622974396,
-0.0035842261277139187,
0.02217516116797924,
0.02419615164399147,
0.037029024213552475,
0.02352837473154068,
0.005456301849335432,
-0.003772424068301916,
0.002517308574169874,
0.010760477744042873,
-0.011667249724268913,
0.09610985219478607,
0.001719726831652224,
-0.025929922237992287,
0.007045657839626074,
-0.004570988938212395,
0.012351993471384048,
0.06055593118071556,
-0.04158030450344086,
-0.09815675020217896,
-0.039285920560359955,
0.0859210193157196,
0.07324310392141342,
0.008481254801154137,
-0.06258947402238846,
0.004863949026912451,
-0.040297627449035645,
-0.028494343161582947,
-0.013183452188968658,
-0.01575457863509655,
0.07137040048837662,
0.06986178457736969,
-0.01018401701003313,
0.0031039894092828035,
-0.04650171846151352,
-0.02570042945444584,
-0.035534024238586426,
-0.018760574981570244,
0.014702367596328259,
-0.05403974652290344,
-0.014096979051828384,
0.04135311022400856,
-5.930134250320407e-8,
-0.014552510343492031,
0.025951648131012917,
-0.05783732235431671,
0.007354908622801304,
0.04577096924185753,
-0.052533432841300964,
0.02510160207748413,
0.037531279027462006,
-0.010998357087373734,
-0.018301134929060936,
0.009333580732345581,
0.007821503095328808,
-0.014089480973780155,
-0.063237763941288,
0.0752483531832695,
-0.07306796312332153,
-0.061507634818553925,
-0.006417596712708473,
-0.040827084332704544,
0.09645488858222961,
0.0595623217523098,
0.0379529744386673,
0.05975186824798584,
-0.07403070479631424,
-0.02116137370467186,
0.03709204122424126,
0.008299521170556545,
0.09511879831552505,
0.027670439332723618,
-0.01609739102423191,
0.005284139886498451,
-0.04675674811005592,
-0.01336336974054575,
-0.04203013703227043,
-0.06393282115459442,
0.02894003689289093,
-0.08711298555135727,
-0.01791612058877945,
0.08971130847930908,
0.05191082879900932,
-0.009798971936106682,
-0.028467625379562378,
-0.013449983671307564,
0.026900969445705414,
-0.06432338804006577,
-0.003609609557315707,
-0.003197859972715378,
-0.07698375731706619,
-0.05982232093811035,
0.032089054584503174,
-0.07309244573116302,
-0.044839393347501755,
-0.0136240990832448,
-0.0685424655675888,
-0.1425457000732422,
-0.055836278945207596,
0.06296613067388535,
-0.03395586460828781,
-0.033198073506355286,
0.03485604003071785,
0.1044522225856781,
-0.11685043573379517,
-0.0884866937994957,
0.0006878611748106778
] | 14,324 |
14,327 |
NuSTAR observation of the hard state of MAXI J1848-015
|
T. Mihara (RIKEN), H. Negoro (Nihon U.), M. Shidatsu (Ehime U.), M. Sugizaki (NAOC), M. Serino (AGU), S. N. Pike, H. Miyasaka (Caltech/SRL), M. Nakajima, M. Aoki, R. Takagi, K. Kobayashi, K, Asakura, K, Seino (Nihon U.), T. Tamagawa, M. Matsuoka (RIKEN), T. Sakamoto, S. Sugita, H. Nishida, K. Komachi, A. Yoshida (AGU), Y. Tsuboi, W. Iwakiri, R. Sasaki, H. Kawai, Y. Okamoto, S. Kitakoga (Chuo U.), N. Kawai, R. Adachi, M. Niwano, R. Hosokawa (Tokyo Tech), S. Nakahira, Y. Sugawara, S. Ueno, H. Tomida, M. Ishikawa, M. Tominaga, T. Nagatsuka (JAXA), Y. Ueda, S. Yamada, S. Ogawa, K. Setoguchi, T. Yoshitake, Y. Goto, R. Uematsu (Kyoto U.), H. Tsunemi (Osaka U.), M. Yamauchi, K. Kurogi, K. Miike (Miyazaki U.), T. Kawamuro (UDP/NAOJ), K. Yamaoka (Nagoya U.), Y. Kawakubo (LSU) report on behalf of the MAXI team
|
We observed the MAXI transient MAXI J1848-015 (ATel #14282) with NuSTAR again in 2020 Dec. 31 8:46 - 2021 Jan. 1 4:16 UTC. Although the source had hardly seen in the MAXI image (ATel #14292) after the first NuSTAR observation on Dec. 23 (ATel #14290), we detected the source with the 2-10 keV flux of (9.1 ± 0.1) x 10-11 erg/cm2/s (= 4 mCrab). The 3-20 keV spectrum was roughly characterized by an absorbed power-law with a photon index of ~2.0. A cutoff is required above 20 keV, which cannot be represented by a reflection model alone. Using the cutoffpl model on XSPEC we obtained a cutoff energy of 41 keV Still the residuals remain at an iron line emission and a hump around 20 keV, both of which can be represented by a reflection component. The pexmon model, a cutoff power-law continuum and its reflection model, better reproduce the entire NuSTAR spectrum over 3-60keV. To explain the broadening of the iron line, we considered the relativistic blurring by adding the kdblur model. Thus we finally obtained NH = (8.0 ± 0.7) x 1022 cm-2, powerlaw index = 1.82 ± 0.05, Efold = 32 ± 3 keV, solid angle of reflector normalized by 2 π = 0.87 ± 0.10, and inclination = 26.8 ± 2.4 degrees (90% confidence errors). Although the cutoff energy is low compared with a hard-state spectrum of the black hole binary (BHB) and the iron line is relatively strong in BHB, the spectrum could be explained by a BHB or a neutron star LMXB in the hard state. The "soft-to-hard state transition" hypothesis to explain the sudden flux decrease on Dec. 23 (ATel #14292) was confirmed. The source location is offset from AX J1848.8-0129 in the same way as in the first NuSTAR observation (ATel #14290). However, due to a larger positional systematic error than the usual we cannot identify or separate the two sources yet. Since the source is close to the sun, the star tracker in the telescope direction cannot be used, A further localization is needed in X-ray, radio or others.
|
2021-01-18 20:36:00
|
radio,x-ray,binary,black hole,neutron star,star,the sun,transient
|
2021-01-18
|
20:36:00
| 1,964 |
[
-0.03456507623195648,
-0.09705308824777603,
-0.00576916616410017,
-0.021690113469958305,
-0.02742811292409897,
-0.043479543179273605,
-0.016127657145261765,
0.1408882439136505,
-0.09685187041759491,
-0.021733911707997322,
0.0389629527926445,
0.004925313405692577,
-0.03964682295918465,
0.06826195120811462,
-0.01544051244854927,
0.01686103828251362,
0.0654892697930336,
0.025260763242840767,
-0.027579549700021744,
-0.07406843453645706,
0.05455369874835014,
-0.05694350600242615,
-0.014257320202887058,
0.018444208428263664,
0.032599084079265594,
-0.018039023503661156,
-0.04546431452035904,
0.002993073081597686,
-0.08259609341621399,
-0.07403742522001266,
-0.11314833164215088,
0.039543066173791885,
0.05029907822608948,
-0.09019256383180618,
-0.0361931286752224,
0.004454837180674076,
-0.01026852335780859,
-0.026768414303660393,
-0.13812698423862457,
-0.04728987440466881,
-0.05761682987213135,
0.015153935179114342,
0.07657497376203537,
0.00826407689601183,
0.06686084717512131,
-0.06276782602071762,
-0.019987937062978745,
-0.09263413399457932,
-0.022784410044550896,
-0.04579416289925575,
-0.056159138679504395,
-0.04808180779218674,
0.10473499447107315,
0.08832179754972458,
0.04547937586903572,
-0.033517688512802124,
-0.02996736392378807,
-0.049721501767635345,
0.07841747999191284,
0.030427617952227592,
-0.06656055152416229,
-0.009905499406158924,
-0.10334496945142746,
-0.00558247696608305,
0.08166520297527313,
-0.026742834597826004,
-0.050484754145145416,
0.027765920385718346,
0.029953733086586,
0.05851593241095543,
0.008442564867436886,
-0.02010626345872879,
0.026459194719791412,
0.03660590574145317,
-0.023891044780611992,
0.01260059978812933,
-0.013928821310400963,
0.017512723803520203,
0.02386905997991562,
-0.024162042886018753,
-0.017703058198094368,
0.05476055666804314,
-0.001678377971984446,
-0.005734290927648544,
0.07615584880113602,
0.06093047559261322,
0.025323623791337013,
-0.00041804564534686506,
-0.04928697645664215,
0.027245230972766876,
0.10432735085487366,
0.12785784900188446,
-0.0333186574280262,
0.00686364620923996,
-0.050362296402454376,
0.01544976606965065,
-0.0371696799993515,
-0.01276359148323536,
-0.044021859765052795,
-0.00823606364428997,
-0.02599572204053402,
-0.026417413726449013,
-0.01445841696113348,
-0.02159772627055645,
-0.10354556143283844,
-0.028833797201514244,
0.05754273384809494,
-0.017038555815815926,
-0.03198275715112686,
0.033024296164512634,
-0.06868654489517212,
0.03346479684114456,
-0.047899119555950165,
0.0027582822367548943,
-0.03169944882392883,
0.028835637494921684,
-0.014511161483824253,
0.05499403551220894,
0.006786578334867954,
0.10921356827020645,
-0.015015354380011559,
-0.022928306832909584,
0.014417947269976139,
0.019703267142176628,
0.010335763916373253,
0.054192282259464264,
-0.08806705474853516,
5.978546268524907e-33,
0.013073560781776905,
0.0184534452855587,
-0.07672107219696045,
0.02833336591720581,
-0.02087264321744442,
-0.06820305436849594,
-0.06261279433965683,
-0.020093640312552452,
0.01293099857866764,
0.008103045634925365,
-0.01663661189377308,
-0.002389154164120555,
-0.0754699632525444,
-0.02625342644751072,
0.08398152887821198,
-0.12646162509918213,
-0.039124663919210434,
0.039551254361867905,
-0.026177585124969482,
0.022221863269805908,
0.02054029144346714,
-0.0038993703201413155,
0.004906294401735067,
-0.06845546513795853,
-0.018760550767183304,
0.052759621292352676,
0.016777848824858665,
-0.029047753661870956,
-0.0555182583630085,
0.05181583762168884,
0.06479930877685547,
0.009017365984618664,
-0.08340272307395935,
-0.030758138746023178,
-0.005685305688530207,
0.02108926698565483,
-0.04526735097169876,
-0.048109281808137894,
0.012528023682534695,
0.019473847001791,
-0.04554884880781174,
0.07997105270624161,
-0.01938997209072113,
0.02312946878373623,
0.0770534873008728,
-0.07142285257577896,
0.01361433882266283,
0.030047733336687088,
-0.02544562704861164,
0.06410021334886551,
-0.06062237173318863,
-0.016917908564209938,
-0.023082418367266655,
-0.057752300053834915,
0.05787943676114082,
0.051764726638793945,
0.08061662316322327,
-0.06199350953102112,
-0.002616155194118619,
0.11696558445692062,
-0.17389889061450958,
0.02362722158432007,
-0.1049019992351532,
-0.04731752350926399,
-0.03294443339109421,
0.10711518675088882,
-0.010522747412323952,
-0.02269531972706318,
-0.03602134436368942,
-0.031844787299633026,
-0.06452272087335587,
-0.15740644931793213,
-0.00011741967318812385,
-0.023136379197239876,
-0.008108540438115597,
-0.06164555624127388,
0.023266369476914406,
0.061506398022174835,
-0.05191037803888321,
-0.0118727907538414,
-0.03494421765208244,
0.025054538622498512,
-0.08454107493162155,
0.015919629484415054,
0.0007143438560888171,
0.02461838908493519,
-0.03410719335079193,
0.0215621218085289,
0.0012423022417351604,
-0.011034922674298286,
0.08249414712190628,
-0.10353018343448639,
0.08766903728246689,
0.041914910078048706,
-0.08825338631868362,
-6.142018961815901e-33,
0.0363168865442276,
-0.031353097409009933,
0.003923644311726093,
0.02293710969388485,
0.05893208459019661,
0.0768803209066391,
0.03614719584584236,
0.007098171394318342,
0.031470488756895065,
-0.07494989037513733,
0.010612605139613152,
0.04856950789690018,
-0.0302340779453516,
-0.0406678281724453,
-0.022345010191202164,
0.03175882622599602,
0.006613970268517733,
-0.01676195114850998,
0.005002759397029877,
-0.08352173119783401,
0.07514606416225433,
0.03681941702961922,
-0.022458672523498535,
0.029512247070670128,
-0.04610743001103401,
0.06939436495304108,
-0.005492547992616892,
0.022771956399083138,
0.010389897041022778,
0.0957772359251976,
-0.03194526582956314,
-0.01935422606766224,
-0.039458803832530975,
-0.01860026642680168,
0.042710501700639725,
-0.02455340512096882,
0.052490830421447754,
0.09014168381690979,
-0.02541534975171089,
0.06738511472940445,
0.1119130402803421,
0.066236712038517,
0.018745338544249535,
0.03190355747938156,
-0.08642137050628662,
0.03153601661324501,
-0.022039053961634636,
0.04269054904580116,
-0.0689757764339447,
0.02645057812333107,
0.015968604013323784,
-0.012405541725456715,
-0.014873000793159008,
-0.07749193161725998,
-0.029627040028572083,
-0.014611375518143177,
0.05070338398218155,
-0.02932729385793209,
-0.05970584228634834,
0.007653527427464724,
0.03963461518287659,
-0.005508963018655777,
0.010940964333713055,
0.03178023174405098,
0.028896689414978027,
0.043947793543338776,
0.058394819498062134,
0.008611954748630524,
-0.0001563706318847835,
0.026274919509887695,
-0.02378871478140354,
-0.05215054750442505,
0.004067284986376762,
-0.054720062762498856,
-0.03636814281344414,
-0.04242866858839989,
-0.08095189929008484,
-0.027600061148405075,
-0.0035330422688275576,
-0.0037974107544869184,
-0.03795909136533737,
0.06771261990070343,
-0.02288326807320118,
0.02093382738530636,
0.12133004516363144,
0.05756170675158501,
-0.062863290309906,
-0.01383961085230112,
0.031976621598005295,
-0.010661039501428604,
0.02780122496187687,
0.060211021453142166,
0.08425741642713547,
0.08191069960594177,
0.0520903654396534,
-7.538395863093683e-8,
-0.0060491361655294895,
-0.0318315364420414,
0.10861200094223022,
0.041286397725343704,
-0.035534683614969254,
-0.045083776116371155,
0.014581931754946709,
0.06855380535125732,
-0.006096299272030592,
0.03238292783498764,
0.054409924894571304,
0.11850142478942871,
0.020519403740763664,
0.004345103166997433,
0.11396780610084534,
-0.03284502029418945,
0.08375360816717148,
0.10228470712900162,
-0.09718057513237,
-0.02356087788939476,
0.011351466178894043,
0.0024609991814941168,
0.05771069601178169,
-0.022053921595215797,
-0.02043667808175087,
-0.028865626081824303,
0.043151721358299255,
0.000727831618860364,
-0.011609886772930622,
0.0017541814595460892,
-0.020518777891993523,
-0.025202587246894836,
0.07349494099617004,
-0.021983493119478226,
0.04422612488269806,
0.07567600160837173,
-0.036930132657289505,
-0.0358162447810173,
-0.02845294028520584,
0.03737824410200119,
-0.07681667059659958,
-0.027298735454678535,
-0.035220906138420105,
0.0948859378695488,
0.028596878051757812,
0.01918782852590084,
-0.013351929374039173,
0.008884606882929802,
0.0009966058423742652,
-0.0010006875963881612,
0.0176602341234684,
-0.01312804501503706,
0.0035951510071754456,
-0.056408826261758804,
-0.02316436916589737,
0.07422777265310287,
-0.008858718909323215,
-0.05250120535492897,
0.0006696449709124863,
-0.04421970993280411,
0.026457156985998154,
-0.07623549550771713,
-0.015476732514798641,
0.06347431242465973
] | 14,325 |
14,328 |
The flaring blazar BL Lacertae observed below R=11.5, a new record for its optical brightness
|
Alessandro Marchini (Astronomical Observatory, Department of Physical Sciences, Earth and Environment (DSFTA), University of Siena - Italy), Pietro Aceti, Massimo Banfi (Osservatorio Astronomico Città di Seveso, Seveso - Italy), Fabio Mortari (Hypatia Observatory, Rimini - Italy), Riccardo Papini, Fabio Salvaggio (Wild Boar Remote Observatory, Florence - Italy), Giuseppe Marino (Gruppo Astrofili Catanesi Observatory, Catania - Italy), Claudio Arena (ObsCT Private Observatory, Catania - Italy), Antonio Frasca (INAF - Osservatorio Astrofisico di Catania), Massimo Conti, Simone Leonini, Paolo Rosi, Luz Marina Tinjaca Ramirez (Montarrenti Observatory, Siena - Italy), Giacomo Bonnoli (IAA-CSIC, Granada - Spain)
|
We report that the optical brightness of the flaring blazar BL Lacertae (RA: 22 02 43.29 Dec: +42 16 39.98 J2000.0) reached levels that are unprecedented for this source to the best of our knowledge, with observed magnitudes below R=11.5. We are monitoring this source intensively, in the framework of a follow-up campaign on this flaring blazar coordinated by the WEBT Collaboration and better detailed in our recent ATel #14318. Our last measurements in the Johnson-Cousins R filter are reported in the following table: Civil Date(UT) Mag (dMag) Observatory - Notes 2021 Jan. 17.84 R= 12.47 (0.01) Siena - Average of 16 frames 2021 Jan. 17.87 R= 12.45 (0.02) Seveso- Single frame These measurements were obtained using the photometric sequence made available by the WEBT Collaboration (http://www.oato.inaf.it/blazars/webt/gasp/fc/2200fc.html ). Reported uncertainty is statistical only. This magnitude is significantly below the previous record in the R band for the blazar BL Lacertae, to the best of our knowledge represented by the magnitude R=11.73(0.01) reported in ATel #14081 and observed on 2020 Oct. 05.45. Any enquiry on these observations can be addressed either to Alessandro Marchini ([email protected]) or to Giacomo Bonnoli ([email protected]). We will continue monitoring the source in the following nights. Multi-wavelength follow-up is encouraged. We acknowledge excellent scientific cooperation with, and valuable support from, the WEBT Collaboration, the BOOTES Network Collaboration, the Tuorla Observatory and the MAGIC Collaboration. Co-author Giacomo Bonnoli acknowledges financial support to the Spanish "Ministerio de Ciencia e Innovación" (MICINN) through grant PID2019-107847RB-C44 and Unit of Excellence Severo Ochoa award to the Instituto de Astrofísica de Andalucía - CSIC (SEV-2017-0709). A brief description of the instrumental setup used at the Astronomical Observatory of the University of Siena for the reported observation is available at the official webpage of the observatory (see link below). The instrumentation in Seveso consists of a 0.3 m, f/6.5 telescope equipped with a ST8 XME NABG SBig CCD.
|
2021-01-19 02:08:00
|
radio,infra-red,optical,ultra-violet,x-ray,gamma ray,tev,vhe,agn,blazar,transient,request for observations
|
2021-01-19
|
02:08:00
| 2,139 |
[
-0.05160335451364517,
-0.0640910193324089,
-0.006737838964909315,
0.10955274105072021,
-0.04379839450120926,
-0.0717453882098198,
-0.05495871603488922,
0.02737037092447281,
0.06078628823161125,
0.01218270231038332,
-0.04769004508852959,
-0.08940326422452927,
-0.010705257765948772,
0.04847676679491997,
0.00907902978360653,
0.061534833163022995,
-0.005750932730734348,
-0.056529704481363297,
-0.07107925415039062,
0.048636544495821,
0.03929053246974945,
-0.034066859632730484,
-0.03083045594394207,
0.09429924935102463,
-0.03853728622198105,
-0.05318758636713028,
-0.05478906258940697,
0.002048929687589407,
-0.02110915258526802,
-0.015364442020654678,
-0.06567522883415222,
0.04708624631166458,
-0.012676204554736614,
-0.019651304930448532,
0.03771110624074936,
-0.035130977630615234,
0.032072171568870544,
-0.07082881778478622,
0.010679896920919418,
0.041319336742162704,
-0.030719667673110962,
-0.024936381727457047,
0.0036760640796273947,
0.014452820643782616,
-0.03231893852353096,
-0.036732837557792664,
-0.016487950459122658,
0.02073528990149498,
-0.03145590052008629,
-0.015582392923533916,
-0.02938290312886238,
0.06298943608999252,
-0.05101906880736351,
-0.028431370854377747,
0.0043634651228785515,
0.07141712307929993,
-0.03860877826809883,
-0.09362175315618515,
0.12348395586013794,
-0.05866945534944534,
0.0754653587937355,
0.06776949018239975,
-0.11622819304466248,
-0.04005355015397072,
-0.04537554085254669,
0.016565997153520584,
-0.08000100404024124,
-0.12027056515216827,
0.038175974041223526,
-0.04191598668694496,
0.012628018856048584,
-0.03551285341382027,
-0.010961632244288921,
-0.027830300852656364,
-0.037987858057022095,
0.01149993110448122,
0.056064672768116,
0.032024648040533066,
-0.0016464529326185584,
-0.02859821915626526,
0.11108726263046265,
-0.02464243583381176,
0.0014155389508232474,
0.06331124156713486,
0.07502566277980804,
0.03570137545466423,
0.006408137269318104,
0.03452185168862343,
-0.058303747326135635,
0.05502220615744591,
0.040542665868997574,
-0.025516629219055176,
-0.07331778109073639,
-0.07285470515489578,
-0.00698456447571516,
0.02797086164355278,
0.08458422869443893,
-0.07006628066301346,
0.020892230793833733,
-0.004747276194393635,
0.013460975140333176,
-0.10347019881010056,
-0.07022076845169067,
0.08514344692230225,
-0.03588750585913658,
0.0489777997136116,
0.08847297728061676,
0.04407128691673279,
0.08770544081926346,
-0.003054293803870678,
0.05211982876062393,
0.005994959734380245,
-0.0021248608827590942,
-0.07475200295448303,
-0.01865900307893753,
0.043665021657943726,
-0.05000070482492447,
0.12420350313186646,
-0.04639212042093277,
0.007672232110053301,
0.04505171254277229,
0.07640030980110168,
0.06771322339773178,
0.03384727984666824,
0.07533092051744461,
-0.01050514541566372,
-0.012113439850509167,
1.0106969488663139e-32,
0.13238009810447693,
0.04013564810156822,
-0.05151024088263512,
0.014070473611354828,
-0.01878303848206997,
0.03980832174420357,
-0.0873836800456047,
0.04807648807764053,
-0.10510873049497604,
-0.02419426292181015,
-0.018880710005760193,
0.05789804831147194,
0.005107814911752939,
-0.05942397564649582,
0.012360245920717716,
0.020892150700092316,
0.08585341274738312,
0.03207075223326683,
-0.09771363437175751,
0.031797852367162704,
-0.009746300987899303,
0.03923626244068146,
0.019608663395047188,
-0.02937227673828602,
0.0008641102467663586,
0.11407261341810226,
0.03423747420310974,
0.03690942004323006,
-0.04479014873504639,
0.039556119590997696,
0.07565979659557343,
-0.009368791244924068,
-0.001394179416820407,
0.034775640815496445,
-0.07789105921983719,
-0.07989710569381714,
-0.015084432438015938,
-0.041782163083553314,
-0.040435079485177994,
0.00910355057567358,
0.030480753630399704,
0.04401486739516258,
-0.04248178377747536,
0.024470211938023567,
0.028534669429063797,
0.02670004591345787,
-0.018709344789385796,
0.032494060695171356,
0.01332103181630373,
0.024896107614040375,
-0.025947222486138344,
0.031076882034540176,
-0.025861473754048347,
0.012331068515777588,
0.015010162256658077,
0.09345550090074539,
0.011106879450380802,
-0.03594398498535156,
0.004048025235533714,
0.0030408157035708427,
0.08477209508419037,
-0.017450520768761635,
0.026408661156892776,
-0.04395560920238495,
0.03925323113799095,
0.00796130858361721,
-0.032045990228652954,
0.1115628033876419,
-0.07338918745517731,
0.018345307558774948,
-0.03168875351548195,
0.045862797647714615,
0.04174506664276123,
-0.08120785653591156,
0.019940778613090515,
-0.018972400575876236,
0.07973777502775192,
0.07216726988554001,
-0.03577041253447533,
0.02659529820084572,
-0.08612542599439621,
0.005988060962408781,
0.1101958304643631,
-0.05928654596209526,
-0.08147665113210678,
0.04576782509684563,
0.025775179266929626,
-0.018029306083917618,
-0.05490522459149361,
-0.07712885737419128,
0.014106535352766514,
-0.056633111089468,
-0.0010798928560689092,
-0.07078710943460464,
-0.10581646859645844,
-1.0300425002081778e-32,
0.038267582654953,
-0.04269566014409065,
0.012522891163825989,
-0.023096852004528046,
-0.004749000538140535,
-0.004275576211512089,
0.029701832681894302,
0.007582197431474924,
-0.07516404986381531,
-0.028876326978206635,
0.05151989683508873,
0.06901616603136063,
-0.08592741191387177,
-0.07614384591579437,
0.009352447465062141,
0.013814789243042469,
0.051636990159749985,
-0.021076509729027748,
-0.05335460230708122,
0.004905779380351305,
-0.05376856401562691,
0.01621013693511486,
0.02375330775976181,
-0.011273478157818317,
0.030754826962947845,
0.020118648186326027,
0.050476737320423126,
-0.0532030425965786,
-0.08828852325677872,
-0.0226182509213686,
-0.021106379106640816,
0.075527623295784,
-0.012847964651882648,
-0.05655139684677124,
-0.057298693805933,
0.10513611882925034,
0.01070886105298996,
-0.08308114856481552,
-0.05994419381022453,
0.03715851902961731,
0.005743767134845257,
0.08588167279958725,
-0.03169384226202965,
-0.043742574751377106,
-0.007213665172457695,
-0.03778162971138954,
-0.011175422929227352,
0.0394408293068409,
0.040782395750284195,
-0.008004908449947834,
0.02625219151377678,
-0.018803393468260765,
-0.01678258366882801,
0.08814940601587296,
-0.009138697758316994,
-0.023905670270323753,
-0.011561298742890358,
0.034114763140678406,
0.024902820587158203,
0.0419815331697464,
-0.014021695591509342,
-0.0030141060706228018,
-0.032217931002378464,
0.030201610177755356,
0.056712012737989426,
0.0225028358399868,
0.011076485738158226,
0.05022258684039116,
0.027648262679576874,
0.020847907289862633,
0.06681977957487106,
-0.04343092441558838,
-0.057367611676454544,
0.11607622355222702,
0.04692428931593895,
0.06927267462015152,
0.016261909157037735,
-0.07258801907300949,
-0.0510597862303257,
0.05525227263569832,
-0.000286547263385728,
-0.0330485925078392,
0.005646495148539543,
-0.0035988595336675644,
0.04761446267366409,
-0.08985689282417297,
-0.011249148286879063,
-0.07599082589149475,
-0.022960247471928596,
-0.008070698007941246,
-0.033749550580978394,
0.03162992000579834,
0.030369514599442482,
-0.05965070426464081,
0.1379648596048355,
-5.7429510036399734e-8,
0.02350626513361931,
0.0809314027428627,
-0.075441375374794,
0.02746969275176525,
0.014703614637255669,
-0.07595191895961761,
-0.030083125457167625,
-0.011717195622622967,
-0.01584639772772789,
-0.03760754317045212,
-0.04649447649717331,
-0.03793251886963844,
0.0342591255903244,
-0.005649872124195099,
0.03207409381866455,
0.020658088847994804,
0.010028154589235783,
-0.09987600147724152,
-0.0034068655222654343,
0.03592825308442116,
0.04820490628480911,
0.027451172471046448,
0.002424003090709448,
-0.10740255564451218,
-0.020383819937705994,
-0.014955324120819569,
-0.05631981045007706,
0.026814624667167664,
0.01960856094956398,
0.0004975642077624798,
0.08325482159852982,
-0.051967501640319824,
0.08094390481710434,
-0.08152803033590317,
-0.017657073214650154,
0.025883905589580536,
-0.12197305262088776,
0.0599503368139267,
-0.002651544287800789,
0.06033194437623024,
0.0009740378591232002,
-0.06338680535554886,
-0.013730164617300034,
0.04313022643327713,
-0.05609331652522087,
0.0021564525086432695,
-0.03422239050269127,
-0.05388464406132698,
-0.00971943512558937,
0.01793150044977665,
-0.004001550376415253,
-0.009135384112596512,
0.0287307258695364,
-0.03391176462173462,
-0.10523984581232071,
-0.0613400824368,
0.04424154758453369,
0.061480674892663956,
-0.0381694957613945,
-0.02028631791472435,
0.06837864220142365,
-0.09398747235536575,
-0.09381503611803055,
-0.0019102460937574506
] | 14,326 |
14,329 |
Erratum to ATel #14328
|
Giacomo Bonnoli (IAA-CSIC, Granada - Spain)
|
Magnitudes in the table reported in ATel#14328 are incorrect. The correct table is the following: Civil Date(UT) Mag (dMag) Observatory - Notes 2021 Jan. 17.84 R= 11.47 (0.01) Siena - Average of 16 frames 2021 Jan. 17.87 R= 11.45 (0.03) Seveso - Single frame I apologize for the inconvenience on behalf of the authors.
|
2021-01-19 03:25:00
|
radio,infra-red,optical,ultra-violet,x-ray,gamma ray,tev,vhe,agn,blazar,transient,request for observations
|
2021-01-19
|
03:25:00
| 318 |
[
0.035730596631765366,
0.0072802770882844925,
-0.02381868101656437,
0.03745051473379135,
-0.032583776861429214,
-0.06956185400485992,
-0.04732619225978851,
0.07553267478942871,
-0.03859822452068329,
-0.04821252450346947,
0.031109480187296867,
-0.10139273852109909,
-0.012393002398312092,
-0.027448834851384163,
-0.0690469890832901,
-0.06509862095117569,
-0.033384013921022415,
-0.032570548355579376,
0.0038865089882165194,
0.09692052006721497,
-0.04369637742638588,
0.017047328874468803,
-0.00812467746436596,
0.021472135558724403,
0.1436978280544281,
-0.0036701944191008806,
-0.06537556648254395,
-0.029666488990187645,
0.012488827109336853,
-0.015314186923205853,
-0.05664464086294174,
0.06892865151166916,
0.06336640566587448,
-0.018125027418136597,
-0.05158882588148117,
-0.07334725558757782,
0.05951135978102684,
-0.05446147173643112,
-0.056948915123939514,
-0.0007685149321332574,
-0.032393522560596466,
0.0005737573374062777,
0.05325085669755936,
0.06292995810508728,
-0.04336164519190788,
-0.016086798161268234,
-0.03974607214331627,
0.000022819671357865445,
-0.0024091480299830437,
0.06795158237218857,
-0.07285912334918976,
0.05076659470796585,
-0.007067334838211536,
0.025812139734625816,
-0.013346528634428978,
0.055243220180273056,
0.06118757277727127,
-0.01806890405714512,
0.06000594049692154,
0.034087084233760834,
-0.05038711801171303,
-0.015538420528173447,
-0.06758300960063934,
-0.008147770538926125,
0.07285350561141968,
0.05380966141819954,
-0.03085065819323063,
-0.06119734048843384,
-0.06881330907344818,
-0.022178297862410545,
-0.012487303465604782,
-0.051760777831077576,
-0.04622655361890793,
-0.03597010672092438,
0.015456649474799633,
0.05925356596708298,
-0.03576447814702988,
0.023088958114385605,
0.08013954758644104,
-0.10750771313905716,
0.036896105855703354,
-0.07302342355251312,
-0.08121922612190247,
-0.03618641942739487,
0.06523112207651138,
0.024104773998260498,
0.06978500634431839,
0.013047090731561184,
0.11111173778772354,
0.046266961842775345,
0.030783643946051598,
0.034954700618982315,
-0.01750572770833969,
0.00488218804821372,
0.010033008642494678,
0.03922165557742119,
0.04521852731704712,
0.041284576058387756,
0.029269643127918243,
0.06074543297290802,
0.06959682703018188,
0.05505748093128204,
-0.10353917628526688,
0.08492011576890945,
-0.09436280280351639,
0.0374746173620224,
0.07055570930242538,
-0.015613269992172718,
-0.04011640325188637,
-0.03021199442446232,
0.07804805040359497,
0.030024781823158264,
0.007225991692394018,
-0.07342052459716797,
0.06127788871526718,
-0.04297981411218643,
-0.023660046979784966,
0.08927582949399948,
0.024851994588971138,
-0.05916580185294151,
0.0012905510375276208,
0.047400474548339844,
-0.050430431962013245,
0.06348564475774765,
-0.05210549384355545,
0.003956392407417297,
0.003841969883069396,
4.963488162148646e-33,
-0.007095657289028168,
0.05375635623931885,
0.03727453574538231,
0.012788071297109127,
-0.06135585531592369,
0.026173068210482597,
-0.1404891312122345,
0.04948248714208603,
0.03841656818985939,
0.004239037167280912,
-0.059359367936849594,
0.008805119432508945,
0.05628938227891922,
-0.017735915258526802,
0.02597777545452118,
0.04025193676352501,
0.09866651147603989,
-0.012833374552428722,
-0.011188505217432976,
0.003529599169269204,
0.037109266966581345,
0.008447219617664814,
-0.04919379577040672,
-0.06625302135944366,
0.02262682467699051,
0.06639491021633148,
-0.019058922305703163,
0.05207495763897896,
-0.0731145367026329,
0.012491835281252861,
0.05101950466632843,
-0.0315500944852829,
0.02363947220146656,
-0.040362466126680374,
0.004296529572457075,
-0.047721728682518005,
0.014225510880351067,
0.042430974543094635,
-0.0025748738553375006,
0.03898391127586365,
0.029372669756412506,
0.09356560558080673,
-0.07511438429355621,
-0.032416779547929764,
-0.014965741895139217,
0.025758923962712288,
0.050923533737659454,
0.04402603581547737,
0.10174834728240967,
0.002277981024235487,
-0.05007587745785713,
0.012617208994925022,
-0.029185837134718895,
0.015748901292681694,
0.0941731408238411,
0.06086665764451027,
0.002085227519273758,
0.005344001110643148,
0.013568616472184658,
0.023682016879320145,
0.029382264241576195,
0.044748228043317795,
0.08809942752122879,
-0.04921398311853409,
0.015369363129138947,
0.0666671097278595,
-0.07317862659692764,
0.043450914323329926,
-0.040694668889045715,
-0.03360803797841072,
-0.013001536950469017,
0.057063791900873184,
0.03441633656620979,
-0.009040532633662224,
-0.0349525511264801,
-0.00019363984756637365,
0.014191686175763607,
-0.008392778225243092,
-0.04052463918924332,
0.03916921094059944,
-0.0989295095205307,
0.06750109046697617,
0.05436565726995468,
-0.06171758100390434,
-0.08923988044261932,
-0.02768908254802227,
0.030609073117375374,
0.04588006064295769,
-0.051532600075006485,
-0.008019750937819481,
0.06117325648665428,
-0.013180744834244251,
0.048204660415649414,
0.04011956602334976,
-0.08873812109231949,
-4.4142876505528727e-33,
-0.053254008293151855,
0.059337906539440155,
-0.058672647923231125,
0.005360333248972893,
-0.018828440457582474,
-0.004894582089036703,
0.04349099099636078,
0.02133256196975708,
0.015980830416083336,
0.02203187346458435,
0.07145237922668457,
-0.08426933735609055,
-0.04101092740893364,
-0.08541899174451828,
0.09469598531723022,
0.050959035754203796,
0.009580310434103012,
-0.013561369851231575,
-0.08431904762983322,
0.02540641464293003,
0.03390081226825714,
0.01010157447308302,
0.03795173764228821,
0.05796269327402115,
0.05717599019408226,
0.005232488736510277,
0.04053344205021858,
-0.13900861144065857,
-0.07834634184837341,
-0.05483429506421089,
-0.02166360430419445,
-0.04560341686010361,
0.001043111551553011,
0.032279469072818756,
-0.027488334104418755,
0.0457710325717926,
0.08669375628232956,
-0.054441262036561966,
-0.0097203329205513,
0.007449590601027012,
-0.09695419669151306,
0.17428287863731384,
-0.04080925136804581,
0.027723293751478195,
-0.027790749445557594,
0.03530140966176987,
0.08147291094064713,
0.0428323857486248,
0.01767692156136036,
-0.03119039162993431,
0.07964473217725754,
-0.06571906805038452,
-0.04921664670109749,
0.027568446472287178,
0.05372774228453636,
-0.011090814135968685,
0.005769258365035057,
0.009038309566676617,
-0.06672395020723343,
-0.05130428075790405,
0.003061129478737712,
-0.03870511054992676,
-0.06438062340021133,
-0.009000863879919052,
0.0013684448786079884,
-0.014149550348520279,
-0.017724649980664253,
0.025463316589593887,
-0.04840707778930664,
-0.02209523878991604,
0.05115500092506409,
-0.006048297509551048,
-0.03246437385678291,
-0.004862120375037193,
-0.0051401518285274506,
0.03450416028499603,
0.05725215747952461,
-0.012520215474069118,
0.0253242589533329,
-0.01753932051360607,
-0.018152344971895218,
0.014645818620920181,
-0.02405478246510029,
0.017509037628769875,
-0.0643954873085022,
-0.021451318636536598,
-0.014451210387051105,
-0.08867128193378448,
-0.018834952265024185,
0.1090153232216835,
-0.07888901978731155,
0.048720162361860275,
-0.025902654975652695,
0.006976240314543247,
0.158649742603302,
-5.261973967662925e-8,
0.05603127181529999,
-0.013593452051281929,
-0.12031475454568863,
-0.004199849907308817,
0.0012239280622452497,
-0.03767351433634758,
-0.035929691046476364,
-0.0029948255978524685,
-0.05150861293077469,
0.01660349778831005,
0.03288578614592552,
-0.020926583558321,
0.010668514296412468,
-0.042530450969934464,
-0.04018240049481392,
-0.07366278767585754,
-0.011690350249409676,
0.04049324244260788,
-0.013720333576202393,
0.006486225873231888,
0.12490326166152954,
0.054508890956640244,
0.028029780834913254,
-0.09493913501501083,
-0.03747834265232086,
-0.0023193680681288242,
-0.058492258191108704,
0.0044256518594920635,
-0.014987536706030369,
-0.03547654673457146,
0.024298714473843575,
-0.0658702701330185,
0.0024989028461277485,
-0.1492183804512024,
-0.016674140468239784,
0.03262565657496452,
-0.012231472879648209,
0.06510739028453827,
0.07951875030994415,
0.044073935598134995,
-0.05593706667423248,
-0.08606799691915512,
-0.0006406527245417237,
0.0061189886182546616,
-0.022735947743058205,
0.03433370217680931,
-0.04286123067140579,
0.003987489268183708,
0.017723869532346725,
-0.05572839081287384,
0.010145248845219612,
-0.006467740051448345,
0.0651516243815422,
-0.023659586906433105,
0.0414905846118927,
-0.041760653257369995,
0.0024630301631987095,
0.03330446034669876,
-0.0046422346495091915,
-0.02628660574555397,
0.054955411702394485,
-0.027885137125849724,
-0.1407495141029358,
-0.0520322322845459
] | 14,327 |
14,330 |
Fermi-LAT gamma-ray flare in BL Lacertae contemporaneous with optical flaring activity
|
Sara Cutini (INFN Perugia) on behalf of the Fermi-LAT collaboration
|
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed high gamma-ray activity from BL Lacertae (4FGL J2202.7+4216; The Fermi-LAT Collaboration 2020, ApJS, 247, 33).
This activity coincides with optical brightening reported recently in ATel #14318.
On 2021 January 17 Fermi-LAT detected strong enhancement, with a flux = (4.2 +/-0.3) x 10^-6 photons cm^-2 s^-1 (E > 100 MeV) on a daily time scale, and (5.1 +/- 1.0) x 10^-6 photons cm^-2 s^-1 on the six-hour time scale (statistical uncertainties only). This flux is comparable to the 2020 October 6 (ATel #14072) maximum observed flux of BL Lacertae since the beginning of Fermi-LAT operations in Aug 2008 with a flux of (5+/-1) x 10^-6 photons cm^-2 s^-1 in the daily time scale.
The corresponding photon index was 1.8 +/- 0.1 which is smaller than the photon index of 2.23 +/- 0.01 reported in the 4FGL catalog, indicating a spectral hardening accompanying the flux increase.
Because Fermi normally operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. The source is included in the "LAT Monitored Sources" and consequently, a preliminary estimation of the daily gamma-ray flux observed by Fermi-LAT is publicly available ( https://fermi.gsfc.nasa.gov/ssc/data/access/lat/msl_lc/source/BL_Lac ). We encourage multifrequency observations of this source. For this source, the Fermi-LAT contact person is Simone Garrappa (simone.garrappa at desy.de).
The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
|
2021-01-19 03:35:00
|
optical,gamma ray,agn,blazar,request for observations
|
2021-01-19
|
03:35:00
| 1,779 |
[
-0.09762230515480042,
-0.16156597435474396,
0.037284232676029205,
0.05272815749049187,
-0.02197275497019291,
-0.028117060661315918,
0.07646791636943817,
0.09435436129570007,
0.011915476061403751,
0.02745647169649601,
0.005565220490098,
-0.016272693872451782,
-0.03387622907757759,
0.018508130684494972,
-0.002318040234968066,
0.04644438624382019,
0.08407358825206757,
-0.07761212438344955,
-0.12730006873607635,
0.05438585951924324,
0.05432914197444916,
-0.006843296345323324,
0.023270104080438614,
0.08281523734331131,
0.00693733524531126,
-0.0729236900806427,
-0.0312817208468914,
-0.09101415425539017,
-0.0015358406817540526,
-0.026669593527913094,
-0.015068662352859974,
0.06582558155059814,
-0.020088370889425278,
0.03811416029930115,
-0.006613967474550009,
-0.022599857300519943,
0.058779824525117874,
-0.06646887958049774,
-0.024116571992635727,
0.009400743991136551,
-0.03770573064684868,
-0.05350980907678604,
-0.018421662971377373,
-0.01813759095966816,
-0.0032798792235553265,
-0.07700643688440323,
0.04951143637299538,
-0.07593416422605515,
-0.04458349570631981,
0.001535639283247292,
-0.03583808243274689,
0.04913397133350372,
-0.019234314560890198,
-0.024585632607340813,
-0.017867064103484154,
0.057824913412332535,
-0.024567168205976486,
-0.03925877809524536,
0.07337618619203568,
0.02783791720867157,
-0.002472412306815386,
0.01822989620268345,
-0.0799485296010971,
-0.004180307500064373,
0.014496120624244213,
-0.015172180719673634,
-0.09111036360263824,
-0.06110193580389023,
0.05327469855546951,
-0.030444158241152763,
0.035732027143239975,
0.01489828061312437,
-0.1248011440038681,
-0.034907013177871704,
-0.02028537355363369,
0.008568118326365948,
0.11436976492404938,
0.007558755576610565,
0.002366364700719714,
-0.026366792619228363,
0.0415135957300663,
-0.01310805231332779,
0.03948552533984184,
0.03769681602716446,
0.032212886959314346,
0.05754374340176582,
-0.03888346254825592,
0.11000281572341919,
-0.01953703723847866,
0.026095708832144737,
0.016199728474020958,
-0.019083846360445023,
-0.0649808794260025,
-0.007305911276489496,
-0.015955794602632523,
-0.002586423186585307,
-0.02398606948554516,
-0.01606592908501625,
0.03407676890492439,
0.08402528613805771,
0.0006787775200791657,
0.0038999507669359446,
-0.10765337944030762,
0.1310003250837326,
-0.07225970178842545,
0.011148341931402683,
0.10039622336626053,
0.03935735672712326,
-0.029698433354496956,
-0.027439357712864876,
0.11115334182977676,
0.0065832072868943214,
-0.0405750498175621,
-0.06168342009186745,
-0.04128628969192505,
0.013968388549983501,
0.011031932197511196,
0.07513578236103058,
-0.020976193249225616,
-0.017776336520910263,
0.00015649035049136728,
0.06293290108442307,
-0.010019016452133656,
0.03149259090423584,
-0.015068006701767445,
-0.0003486066416371614,
-0.056882090866565704,
6.051417000042304e-33,
0.06248137727379799,
0.06727378070354462,
0.018912162631750107,
0.021130943670868874,
-0.05222480371594429,
0.08548405021429062,
-0.03803781419992447,
0.019600527361035347,
-0.031215980648994446,
-0.056414179503917694,
-0.06856857240200043,
0.0059358240105211735,
0.0031566396355628967,
-0.040642380714416504,
0.00011494604405015707,
-0.043061450123786926,
0.07141844183206558,
0.0285791028290987,
-0.011534411460161209,
0.00895015336573124,
0.05597078055143356,
0.06028898060321808,
-0.022709812968969345,
-0.004848456475883722,
0.0385998897254467,
-0.0043873777613043785,
0.04479531943798065,
0.033294353634119034,
-0.056276001036167145,
0.042598944157361984,
0.00557254021987319,
0.05929667875170708,
0.01097014918923378,
0.04694385454058647,
-0.025201693177223206,
-0.05601830780506134,
-0.01080435048788786,
0.02539079077541828,
0.009391875937581062,
0.004973418079316616,
0.01634054444730282,
0.08181951940059662,
-0.044459667056798935,
0.018052665516734123,
-0.0002534465747885406,
-0.021265408024191856,
0.041614942252635956,
0.005859888158738613,
0.08185870200395584,
0.031596776098012924,
-0.04129963368177414,
0.017119301483035088,
-0.01775420643389225,
0.0159091018140316,
0.05953288450837135,
0.05774090439081192,
0.026060542091727257,
-0.01860802434384823,
0.07437200099229813,
0.062417369335889816,
0.07791490107774734,
-0.01634548231959343,
0.051586609333753586,
0.05979495868086815,
0.010187608189880848,
0.04157804697751999,
0.011595003306865692,
0.033602096140384674,
0.005680996458977461,
-0.05209791660308838,
-0.10645179450511932,
0.07533223927021027,
0.07533571124076843,
-0.08425221592187881,
0.06470206379890442,
-0.07338548451662064,
0.08184941112995148,
0.030152831226587296,
-0.01949765533208847,
0.04998587444424629,
-0.09077459573745728,
-0.0865478590130806,
0.12547354400157928,
-0.019259199500083923,
-0.013291793875396252,
0.03475003316998482,
-0.022387273609638214,
0.010741563513875008,
0.003963290248066187,
-0.04146265238523483,
0.06011229380965233,
-0.07414742559194565,
0.013081759214401245,
-0.03776012361049652,
-0.0997455045580864,
-5.0621933207612394e-33,
0.008605933748185635,
-0.0037267946172505617,
-0.03325948864221573,
0.03998754918575287,
-0.04918685555458069,
-0.035515885800123215,
0.037924423813819885,
0.07243029028177261,
-0.01585542783141136,
0.0002856441424228251,
0.07604340463876724,
0.09823863208293915,
-0.03362424299120903,
-0.1449417918920517,
-0.02095033787190914,
-0.05357987806200981,
0.05020008608698845,
-0.04073575139045715,
-0.027826188132166862,
-0.015323500148952007,
-0.05852014198899269,
0.009494295343756676,
0.012095208279788494,
-0.05018647387623787,
0.006348732393234968,
0.029590314254164696,
0.011400213465094566,
-0.05707747861742973,
-0.03572070971131325,
-0.0438714399933815,
-0.02866675704717636,
-0.011848337016999722,
-0.014486263506114483,
-0.009523981250822544,
-0.023398341611027718,
0.016041234135627747,
0.02951718121767044,
-0.009439095854759216,
-0.052694518119096756,
-0.006740366108715534,
0.007996933534741402,
0.1329682171344757,
0.0448409803211689,
-0.03820723667740822,
-0.00946482177823782,
0.048805154860019684,
-0.011919508688151836,
-0.0017191851511597633,
0.00293290545232594,
-0.025731561705470085,
0.01578425243496895,
-0.06887586414813995,
-0.009622146375477314,
0.06385519355535507,
-0.02514127641916275,
-0.06574853509664536,
0.0259748212993145,
0.03725878521800041,
-0.07708414644002914,
0.04794777184724808,
0.04566778987646103,
-0.03730512410402298,
0.04077019542455673,
-0.023843606933951378,
0.07396959513425827,
-0.012706754729151726,
-0.032729580998420715,
0.09723170846700668,
0.045391641557216644,
-0.00043458075379021466,
0.08926178514957428,
-0.06632860749959946,
-0.03715567663311958,
0.04909435287117958,
0.038188058882951736,
0.04986405000090599,
0.020601196214556694,
-0.08808121085166931,
0.04053462669253349,
0.031057875603437424,
-0.07521975040435791,
0.028401849791407585,
-0.027768658474087715,
-0.0729244202375412,
0.08090007305145264,
-0.03684239834547043,
-0.028047559782862663,
-0.04424355924129486,
0.038933444768190384,
-0.04421597719192505,
-0.07659630477428436,
-0.023799361661076546,
0.023055940866470337,
-0.018253512680530548,
0.053707633167505264,
-5.387208545926114e-8,
0.030236350372433662,
0.06773535162210464,
-0.10718446224927902,
0.02396376244723797,
0.0308319590985775,
-0.10900849103927612,
-0.005408416967839003,
0.04760557785630226,
0.02810569666326046,
0.031412623822689056,
0.020763151347637177,
-0.017422480508685112,
0.04916243627667427,
-0.07824594527482986,
0.018041478469967842,
-0.016289975494146347,
0.021098461002111435,
-0.04757607728242874,
-0.008755577728152275,
-0.020086755976080894,
0.04948973283171654,
0.032982952892780304,
0.07625041157007217,
-0.10580532997846603,
-0.018613744527101517,
-0.005671694874763489,
-0.08489519357681274,
0.08804260939359665,
0.029630737379193306,
-0.05592608451843262,
0.014580232091248035,
-0.05306905135512352,
0.015958307310938835,
-0.022410772740840912,
-0.06049927696585655,
0.005380689166486263,
-0.12226101011037827,
0.06470513343811035,
0.05478817597031593,
0.10475771874189377,
-0.006270159035921097,
-0.08451271802186966,
0.07676688581705093,
0.06157573312520981,
-0.061627861112356186,
0.015956783667206764,
-0.0075582521967589855,
-0.07654161751270294,
-0.005237219389528036,
0.03453861549496651,
-0.016052667051553726,
0.04616705700755119,
0.01680200733244419,
-0.07384389638900757,
-0.08088740706443787,
0.04659387841820717,
0.014314661733806133,
0.0041652945801615715,
-0.026355456560850143,
-0.035221368074417114,
0.022444885224103928,
-0.11508016288280487,
-0.11391721665859222,
-0.012692310847342014
] | 14,328 |
14,331 |
Swift detection of a new SGR Swift J1851.2-6148 or a short GRB 210119A
|
M. J. Moss (GWU), S. D. Barthelmy (GSFC), H. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC), K. L. Page (U Leicester) and D. M. Palmer (LANL)
|
Swift detection of a new SGR Swift J1851.2-6148 or a short GRB 210119A
This is a courtesy copy of GCN #29323 (the reference for citation) for the benefit of the SGR community.
The authors report on behalf of the Neil Gehrels Swift Observatory Team:
At 02:54:09 UT, the Swift Burst Alert Telescope (BAT) triggered and located a short burst which would be either an unknown Soft Gamma Repeater or GRB 210119A (trigger=1017711). The BAT on-board calculated location is RA, Dec 282.804, -61.801 which is RA(J2000) = 18h 51m 13s Dec(J2000) = -61d 48' 02" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single peak structure with a duration of 0.128 sec or less. The peak count rate was ~8000 counts/sec (15-350 keV), at ~0 sec after the trigger.
Due to a Sun observing constraint, Swift cannot slew to the BAT position until 12:54 UT on 2021 January 26. There will thus be no XRT or UVOT data for this trigger before this time.
Due to the short timescale of the peak and the location of the source in the Galactic bulge (lat, lon = 333.99, -23.67) this event may be from a previously unknown Soft Gamma Repeater, which we would name SGR Swift J1851.2-6148 .
Burst Advocate for this burst is M. J. Moss (mikejmoss3 AT gmail.com). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/ )
|
2021-01-19 13:10:00
|
x-ray,gamma ray,gamma-ray burst,neutron star,soft gamma-ray repeater,star,the sun
|
2021-01-19
|
13:10:00
| 1,580 |
[
-0.06987159699201584,
-0.08663863688707352,
-0.026033883914351463,
-0.015810633078217506,
0.08316463977098465,
-0.04971263185143471,
0.04728684946894646,
0.014317034743726254,
-0.013278147205710411,
-0.06487433612346649,
0.07774579524993896,
-0.024568015709519386,
0.040293581783771515,
0.04647904261946678,
-0.013895307667553425,
-0.061723168939352036,
0.04638982191681862,
-0.09173201024532318,
-0.0338318794965744,
-0.038679759949445724,
-0.030380211770534515,
0.05995429307222366,
0.0045347088016569614,
0.06630726903676987,
0.004448301158845425,
-0.024472763761878014,
-0.008054088801145554,
-0.08088812977075577,
0.0021037603728473186,
-0.02200142852962017,
0.08143926411867142,
-0.0007071950240060687,
-0.0415218323469162,
0.04841087386012077,
0.0688873752951622,
-0.04320923611521721,
0.0759487897157669,
-0.010245458222925663,
0.0817236676812172,
-0.05502665787935257,
-0.036363303661346436,
-0.06431452929973602,
0.06510355323553085,
0.03187313675880432,
-0.00714059267193079,
0.05781096592545509,
-0.020235121250152588,
-0.05251581221818924,
-0.04848260432481766,
0.0031414825934916735,
0.0007741902372799814,
-0.0689440369606018,
0.04799216240644455,
-0.005829248111695051,
0.13369199633598328,
0.07776141911745071,
-0.10922963917255402,
-0.052312687039375305,
0.09510508179664612,
0.06647546589374542,
-0.0002961820864584297,
-0.044782597571611404,
-0.009836582466959953,
-0.04899884760379791,
0.04143668711185455,
0.0377219095826149,
0.003108496544882655,
-0.09512211382389069,
0.10385016351938248,
-0.010880186222493649,
0.12597841024398804,
0.020544523373246193,
-0.03986850380897522,
0.025967927649617195,
-0.10664591193199158,
0.035917866975069046,
0.06972198933362961,
0.055549658834934235,
0.05053899437189102,
-0.0076722740195691586,
-0.016182947903871536,
-0.03768302872776985,
0.05420948192477226,
0.014592844992876053,
0.05817283317446709,
-0.021761642768979073,
0.012666257098317146,
0.02716268226504326,
0.018180230632424355,
0.05760711431503296,
0.039593808352947235,
-0.08548848330974579,
-0.016040708869695663,
0.03140796720981598,
-0.009415930137038231,
0.031285934150218964,
-0.009509003721177578,
-0.06047381833195686,
0.025890886783599854,
0.04004141688346863,
-0.013782752677798271,
-0.06236410513520241,
0.0019413253758102655,
0.06425192207098007,
-0.028584061190485954,
-0.05216917023062706,
-0.027758993208408356,
0.01352887786924839,
-0.00015549806994386017,
0.03781688213348389,
0.06406185775995255,
0.062398090958595276,
0.03917751833796501,
0.034700680524110794,
0.03101235069334507,
-0.0537845604121685,
-0.030850110575556755,
0.10554302483797073,
-0.007680150214582682,
-0.011873695999383926,
-0.011028897948563099,
0.09479651600122452,
-0.029830312356352806,
-0.022025279700756073,
0.039390455931425095,
0.05262840539216995,
0.023326853290200233,
4.549596968566103e-33,
-0.0007036029710434377,
0.04108741506934166,
-0.06374292075634003,
-0.052272118628025055,
-0.011103479191660881,
0.03700318560004234,
-0.06617745757102966,
0.12419989705085754,
0.033102668821811676,
-0.004435586743056774,
-0.037540946155786514,
-0.007419243920594454,
0.02097303792834282,
-0.03563235327601433,
0.002267095260322094,
-0.01409263163805008,
0.06117358058691025,
-0.015497838146984577,
-0.07958927750587463,
-0.01134053710848093,
-0.04163357987999916,
-0.006507659796625376,
-0.019352180883288383,
-0.05459236726164818,
-0.006015769671648741,
0.07449247688055038,
0.0026673786342144012,
-0.002212698571383953,
0.03124610334634781,
0.05314114689826965,
-0.04204482212662697,
-0.009124716743826866,
0.000059985191910527647,
0.021940121427178383,
0.07338820397853851,
-0.06258994340896606,
0.019994540140032768,
-0.00449117599055171,
-0.04357624426484108,
-0.02645714022219181,
-0.0013266957830637693,
0.0850379541516304,
-0.1273944228887558,
0.04904622212052345,
0.01326311007142067,
-0.03994939848780632,
0.013156753033399582,
0.030289849266409874,
0.009304258972406387,
0.0076972912065684795,
-0.040290866047143936,
-0.04268054664134979,
-0.07105597853660583,
-0.014886650256812572,
0.05970662832260132,
0.07548161596059799,
0.034849345684051514,
-0.036203354597091675,
0.03849656507372856,
0.013065032660961151,
0.002477378584444523,
0.03152098134160042,
0.025336720049381256,
0.042591582983732224,
0.04222133010625839,
0.031096940860152245,
-0.06125989183783531,
-0.06150045990943909,
-0.02480151318013668,
0.05468793213367462,
-0.009186770766973495,
-0.001175325713120401,
0.06489486992359161,
-0.06118827685713768,
-0.0004257075779605657,
-0.08430186659097672,
0.023490218445658684,
0.06724044680595398,
0.008579745888710022,
-0.06698811054229736,
-0.08167201280593872,
-0.032875970005989075,
0.04370953515172005,
0.007841617800295353,
-0.06216989457607269,
0.05712099373340607,
-0.03451629728078842,
-0.05532776191830635,
-0.04764670133590698,
0.01626572012901306,
0.04303998872637749,
-0.03013792261481285,
0.030743317678570747,
-0.013896205462515354,
-0.11454012244939804,
-4.132296106682206e-33,
0.029594849795103073,
-0.012765705585479736,
-0.0013973856111988425,
-0.02265944704413414,
-0.014897766523063183,
-0.008314388804137707,
-0.021384160965681076,
0.008627022616565228,
-0.03151540085673332,
-0.06408780068159103,
-0.03354113921523094,
0.04006265848875046,
-0.03239215165376663,
0.03125032037496567,
-0.01990491896867752,
-0.015884730964899063,
0.04089552164077759,
0.008010745979845524,
-0.06966123729944229,
-0.0015278629725798965,
0.10140076279640198,
-0.0374622642993927,
-0.019520150497555733,
-0.04112675413489342,
0.032439135015010834,
0.04581517353653908,
0.06501410901546478,
0.039827894419431686,
0.011288152076303959,
-0.07074292004108429,
-0.05960596725344658,
-0.02270914800465107,
0.014612415805459023,
-0.0035672911908477545,
0.06581635028123856,
-0.030071904882788658,
0.10535165667533875,
0.03634821996092796,
-0.046535853296518326,
-0.09356264024972916,
0.023642051964998245,
0.14312393963336945,
-0.06700608134269714,
0.02161739394068718,
-0.05058601126074791,
0.1076023131608963,
0.07396791875362396,
0.11662963032722473,
-0.037623319774866104,
-0.027410613372921944,
-0.0049290102906525135,
-0.10782521963119507,
-0.019728632643818855,
0.10707344859838486,
-0.0686262920498848,
-0.004083745181560516,
0.017243945971131325,
-0.07361746579408646,
-0.03875511512160301,
0.017917001619935036,
0.029322076588869095,
-0.027871111407876015,
0.0029494017362594604,
-0.010326091200113297,
0.038582656532526016,
-0.0034229226876050234,
-0.020681606605648994,
0.029994072392582893,
0.023952025920152664,
0.02962644211947918,
0.06839015334844589,
-0.047107670456171036,
-0.020145950838923454,
-0.021538175642490387,
-0.0022635874338448048,
0.049076199531555176,
-0.03467525914311409,
-0.09867372363805771,
0.019103998318314552,
-0.016959523782134056,
0.02155839093029499,
0.0759747251868248,
-0.020579131320118904,
0.020039351657032967,
0.07066681981086731,
0.019690614193677902,
0.005913972854614258,
0.018802326172590256,
0.034866541624069214,
0.00011697578884195536,
-0.08683006465435028,
0.061486247926950455,
-0.020093945786356926,
0.043364688754081726,
0.05026839300990105,
-5.5134645293719586e-8,
-0.037026986479759216,
0.09198541939258575,
-0.11793909221887589,
0.0010653287172317505,
0.09620671719312668,
-0.03219829872250557,
-0.02713312767446041,
-0.02437346614897251,
0.0536748468875885,
-0.06968313455581665,
0.013994794338941574,
-0.034766893833875656,
-0.04362361505627632,
0.008978065103292465,
0.004233788698911667,
-0.02516651712357998,
-0.014258764684200287,
-0.06206385791301727,
-0.04939519986510277,
0.06379678100347519,
0.039609406143426895,
0.032722316682338715,
0.061544716358184814,
-0.043619923293590546,
-0.06761761754751205,
0.012150276452302933,
-0.025487881153821945,
0.12503136694431305,
-0.029027234762907028,
-0.053930867463350296,
-0.08464076370000839,
0.04111123085021973,
0.02239403873682022,
0.0077785649336874485,
-0.025714432820677757,
0.08090925961732864,
0.02830643765628338,
-0.01437158603221178,
0.08296363800764084,
0.05812773108482361,
-0.028127865865826607,
-0.05891549587249756,
-0.025133389979600906,
0.035516660660505295,
-0.05884212628006935,
-0.05180233344435692,
-0.001413279096595943,
-0.09401241689920425,
-0.023783991113305092,
0.03226261958479881,
-0.027883121743798256,
-0.05637587606906891,
-0.02077818289399147,
0.026030898094177246,
-0.07882492989301682,
0.014827966690063477,
-0.012937926687300205,
-0.16063520312309265,
-0.12698788940906525,
0.034529633820056915,
0.08196809887886047,
-0.059252720326185226,
-0.09104947000741959,
0.022907251492142677
] | 14,329 |
14,332 |
Fast high-amplitude optical variations in Cen X-4 during the brief flare episode seen with REM and LCO
|
M. C. Baglio, D. M. Russell, P. Saikia, S. Waterval (NYU Abu Dhabi), P. D'Avanzo, S. Campana (INAF - OAB), D. M. Bramich (NYU Abu Dhabi), F. Lewis (Faulkes Telescope Project & Astrophysics Research Institute, LJMU), J. Homan (Eureka Scientific & SRON), Jakob van den Eijnden (Univ. of Oxford), S. Covino (INAF-OAB), P. Goldoni (APC/UMR), N. Masetti (INAF-OAS), T. Munoz-Darias (IAC), E. Palazzi (INAF-OAS)
|
The neutron star low-mass X-ray binary Cen X-4 has been in quiescence for the past ~41 years, after its last reported outburst in 1979.
Signs of a recent (August 2020) brightening were first reported in ATel #14254 thanks to the optical monitoring performed with the Las Cumbres Observatory (LCO) network of 2-m and 1-m robotic telescopes. A possible onset of a new outburst was then reported in ATel #14302, as observed in the LCO monitoring. A flux increase was also detected at UV and X-ray wavelengths (ATel #14303) with Swift and NICER observations. After a few days of enhanced activity however, the flux started to decrease, and the source reached again its quiescent levels at all wavelengths (ATel #14317).
Here we report on optical timing observations of Cen X-4 during the above brief flare episode. The system was observed on January 5, 2021 for ~20 mins using the g' band filter as part of the LCO monitoring, for a total of 25 exposures of 30s each. Magnitudes have been extracted and calibrated with the "X-ray Binary New Early Warning System" real-time data analysis pipeline (XB-NEWS; see Russell et al. 2019, Goodwin et al. 2020 and ATel #13451 for details). The light curve shows strong variability on short timescales, displaying a brightening of ~0.7 mag in ~8 mins between the lowest and the highest flux points. We evaluated the fractional rms following Vaughan et al. 2003 and found a value of (15.1+/-2.4)%, which is very high for a NS-LMXB.
Cen X-4 was also continuously observed for an hour on January 5, 2021 with the 60cm Rapid Eye Mount (REM) telescope (La Silla, Cile). Strictly simultaneous, 300s integration time observations have been obtained using the griz SDSS optical filters, for a total of 9 observations per filter. The light curves show strong intrinsic variability, with a ~1 mag difference between the lowest and the highest points in z-band. The fractional rms measured for the z-band is (26.8+/-8.3)%.
We built an average spectral energy distribution (SED) using the strictly simultaneous optical (REM) data, together with a Swift/UVOT UV observation performed on January 5 2021 (ATel #14302). The UV to i'-band SED looks red, with a spectral index of alpha = -1.3+/-0.2 (where F_nu propto nu^alpha). The peak of the SED lies around the i' band frequency. The position of the z-band point is uncertain, due to the high variability of the z-band curve, sometimes being brighter and sometimes fainter than the i'-band point. A very similar result is found from the LCO data (Bessell V, SDSS g', r', i' filters) on the same date, according to which the spectral index of the optical-UV SED is -1.6+/-0.3, which is compatible with what is found with the REM+UVOT dataset. Note that the Y-band magnitudes listed in ATel#14302 and ATel#14317 were in fact uncalibrated, and should not be used; we apologise for this error in our previous ATels.
The high fractional rms, together with the red SED that is observed, are suggestive of the emission of a variable jet during the just concluded flaring episode, as and are very similar to Swift J1357.2-0933 in quiescence (Shahbaz et al. 2013; Russell et al. 2018).
The LCO observations are part of an on-going monitoring campaign of ~ 50 low-mass X-ray binaries (Lewis et al. 2008) with LCO and the Faulkes Telescopes. We acknowledge the support of the NYU Abu Dhabi Research Enhancement Fund under grant RE124.
|
2021-01-19 16:06:00
|
optical,ultra-violet,x-ray,binary,neutron star,star,transient,variables
|
2021-01-19
|
16:06:00
| 3,401 |
[
0.010382983833551407,
-0.08237192779779434,
0.045822858810424805,
0.025550933554768562,
0.053281158208847046,
-0.07884395867586136,
-0.009953717701137066,
0.08757137507200241,
-0.03607122227549553,
-0.02998407371342182,
0.030569132417440414,
-0.03396186977624893,
0.07397029548883438,
0.001093317405320704,
0.008166640065610409,
-0.004254579544067383,
-0.00975115317851305,
-0.1131531223654747,
0.03760237991809845,
0.023805301636457443,
-0.017901241779327393,
-0.0073411292396485806,
-0.02079865150153637,
0.031194375827908516,
-0.00510382978245616,
-0.041912563145160675,
-0.00550647359341383,
-0.09908352047204971,
-0.021948520094156265,
-0.017290428280830383,
-0.013623961247503757,
0.06322518736124039,
0.014039061032235622,
0.030484819784760475,
0.0691889151930809,
0.04914350062608719,
0.08176100999116898,
-0.050038550049066544,
-0.04590025544166565,
-0.06972269713878632,
0.007636697497218847,
-0.06618788838386536,
0.06444845348596573,
0.029113076627254486,
0.0143428361043334,
0.020938033238053322,
-0.017331328243017197,
-0.09084410965442657,
-0.03206416219472885,
0.02332221157848835,
0.005875042174011469,
-0.09241124242544174,
0.056489795446395874,
0.03148506581783295,
0.07882872968912125,
-0.046886492520570755,
-0.04898213967680931,
-0.07661842554807663,
0.07834402471780777,
0.036720458418130875,
0.03759158030152321,
0.030793482437729836,
-0.025978129357099533,
-0.028167743235826492,
0.06648610532283783,
0.040911875665187836,
0.001663997652940452,
-0.07977725565433502,
0.026239944621920586,
0.02964871935546398,
0.062017347663640976,
0.0369546078145504,
-0.02142849750816822,
0.028408490121364594,
-0.061178650707006454,
-0.005027451552450657,
0.10882677137851715,
-0.029187282547354698,
0.01375301368534565,
-0.038165200501680374,
-0.04243620112538338,
0.032233186066150665,
-0.010957238264381886,
0.0005755619495175779,
-0.0689973533153534,
-0.007305704988539219,
0.005012041889131069,
-0.00037357729161158204,
-0.05895589664578438,
0.08250804990530014,
0.07250427454710007,
0.11445815116167068,
-0.0866389349102974,
-0.022607162594795227,
0.05947988107800484,
-0.026726216077804565,
0.05547630786895752,
-0.03918945789337158,
0.048693593591451645,
0.03322778269648552,
0.021641666069626808,
0.03151191398501396,
-0.08930028975009918,
0.05924690142273903,
0.005062099080532789,
-0.021556701511144638,
0.05671047046780586,
0.02691604383289814,
-0.07938353717327118,
0.06387919932603836,
0.018548129126429558,
-0.061064593493938446,
0.015899229794740677,
-0.04159264639019966,
-0.05736340954899788,
0.021323183551430702,
-0.009649289771914482,
0.053541310131549835,
-0.06739459186792374,
-0.03848765417933464,
-0.03224201872944832,
0.0400489903986454,
-0.02269415371119976,
0.05051516741514206,
0.01483128685504198,
0.03355003520846367,
-0.08350364863872528,
3.327522919408513e-33,
0.08070269972085953,
0.019228490069508553,
-0.013540864922106266,
-0.013458240777254105,
-0.028043009340763092,
-0.010699116624891758,
-0.026662373915314674,
0.0629589632153511,
-0.11269716173410416,
-0.0272517129778862,
-0.029058486223220825,
0.015500156208872795,
0.00739633571356535,
-0.08601194620132446,
-0.05949560925364494,
-0.09672568738460541,
0.07722906023263931,
0.0483475998044014,
-0.07380816340446472,
0.011691559106111526,
-0.07748398929834366,
-0.03619461879134178,
-0.01339355856180191,
0.005091657396405935,
0.022693218663334846,
0.07742027938365936,
0.008931854739785194,
0.0035962669644504786,
-0.0040887873619794846,
-0.010531230829656124,
-0.03413970395922661,
0.00759668555110693,
0.017810499295592308,
0.07176025211811066,
-0.027628954499959946,
-0.020181484520435333,
-0.023731378838419914,
0.018215807154774666,
-0.061432719230651855,
-0.0003557938616722822,
0.028099864721298218,
0.02966456115245819,
0.008890258148312569,
-0.039006613194942474,
0.0629391297698021,
-0.02143155038356781,
0.04576406627893448,
-0.07943756133317947,
0.013624260202050209,
-0.015092404559254646,
0.05903221294283867,
0.017309177666902542,
-0.11624495685100555,
-0.015462101437151432,
0.01580168679356575,
0.04618416726589203,
0.02242422103881836,
-0.06639786064624786,
-0.05290379002690315,
-0.024630727246403694,
0.0662139505147934,
0.03702859207987785,
-0.04185101017355919,
0.017404327169060707,
0.012173942290246487,
0.10770201683044434,
-0.0254873875528574,
-0.03999756649136543,
-0.05332435667514801,
0.01441227737814188,
-0.04716482385993004,
-0.05162100866436958,
0.09999476373195648,
-0.0903567224740982,
0.09937385469675064,
0.0074432711116969585,
-0.000552731507923454,
0.0018336352659389377,
0.03129338473081589,
0.03425893932580948,
0.010602189227938652,
-0.038907282054424286,
0.061704568564891815,
-0.05277610570192337,
-0.03264736756682396,
0.030391542240977287,
0.0004883538349531591,
0.043786656111478806,
0.029928354546427727,
0.03399420157074928,
0.054151833057403564,
-0.1308184266090393,
-0.010802660137414932,
-0.027936192229390144,
-0.09585638344287872,
-3.8133767751224424e-33,
-0.017036978155374527,
0.0024964078329503536,
-0.0010174100752919912,
0.06485503166913986,
0.0127372145652771,
-0.006074597127735615,
-0.0038868619594722986,
0.04251016303896904,
-0.04029759392142296,
-0.07539520412683487,
0.09010292589664459,
0.017833491787314415,
-0.04808817431330681,
-0.08833962678909302,
0.051685355603694916,
0.05736410617828369,
0.000041533628973411396,
0.0054463730193674564,
-0.0568845309317112,
-0.008966708555817604,
0.08703356236219406,
0.07149150222539902,
-0.001708829659037292,
-0.04150959104299545,
0.020610546693205833,
0.023358985781669617,
0.08218837529420853,
0.01140597090125084,
0.04045037925243378,
-0.011149149388074875,
-0.14015324413776398,
0.026534520089626312,
0.015679869800806046,
0.007950710132718086,
-0.006805444601923227,
-0.05510035529732704,
-0.04446021094918251,
-0.022481918334960938,
-0.021753935143351555,
0.03425152599811554,
-0.04227162525057793,
0.1180122122168541,
-0.014619939960539341,
0.028648756444454193,
0.011678515002131462,
0.06445334851741791,
0.05427123233675957,
0.0625520795583725,
0.09443239867687225,
0.05072735622525215,
-0.0011910067405551672,
-0.061915963888168335,
-0.021424278616905212,
0.05991405248641968,
-0.03552955761551857,
0.03307577967643738,
-0.0386447049677372,
0.12576055526733398,
0.0024173997808247805,
-0.01141541451215744,
0.027271071448922157,
-0.06677576154470444,
0.07674386352300644,
-0.06919272989034653,
0.030294084921479225,
-0.0237203948199749,
0.019834330305457115,
0.11143162846565247,
-0.0161543320864439,
0.002140897559002042,
0.07695842534303665,
-0.06632757931947708,
-0.038710687309503555,
-0.014824074693024158,
0.015301608480513096,
-0.011758329346776009,
-0.08022930473089218,
-0.0653625950217247,
-0.009618330746889114,
-0.00814816728234291,
-0.02262894995510578,
0.156325101852417,
0.009883279912173748,
0.017646905034780502,
0.09842272102832794,
0.03667829930782318,
-0.007960764691233635,
0.02076764777302742,
0.012941290624439716,
-0.03428499773144722,
-0.047500237822532654,
-0.01699599251151085,
-0.014318677596747875,
-0.001966500421985984,
0.02727322280406952,
-5.613325271269787e-8,
0.02659233659505844,
0.07048418372869492,
-0.05604176968336105,
0.01393492054194212,
0.05065910145640373,
-0.053423069417476654,
0.01320462767034769,
0.07116084545850754,
0.07328809797763824,
0.02006114087998867,
0.01376279816031456,
-0.017078178003430367,
-0.008663341403007507,
-0.1323772668838501,
0.018138952553272247,
-0.013880064710974693,
-0.016470683738589287,
-0.10559924691915512,
-0.023036886006593704,
0.04240250587463379,
0.00649981526657939,
-0.018768437206745148,
0.03301972523331642,
-0.019342243671417236,
-0.12046252191066742,
-0.015216812491416931,
0.031687602400779724,
0.061448875814676285,
-0.026286331936717033,
-0.09945361316204071,
-0.05758034065365791,
0.04462452232837677,
-0.007789531722664833,
-0.060284484177827835,
-0.02400367334485054,
0.04871503263711929,
-0.07052680850028992,
0.042298391461372375,
0.07689632475376129,
0.09727509319782257,
0.0022894360590726137,
-0.0533943809568882,
-0.015745429322123528,
0.01431735698133707,
-0.09434540569782257,
0.04333598539233208,
-0.02041126973927021,
-0.05329831317067146,
0.03266048803925514,
0.04459860175848007,
0.029462840408086777,
0.011209646239876747,
-0.03822631761431694,
-0.07080010324716568,
-0.06476185470819473,
0.059951700270175934,
0.010010341182351112,
-0.023507030680775642,
-0.06813425570726395,
0.02265295200049877,
0.09909658879041672,
-0.14028047025203705,
-0.02349104732275009,
-0.010547935031354427
] | 14,330 |
14,333 |
INTEGRAL non-detection of Cen X-4 in hard X-rays
|
J. Chenevez (DTU Space, Denmark), E. Kuulkers (ESA/ESTEC, Netherland), C. Sanchez-Fernandez (ESA/ESAC, Spain), C. Ferrigno, V. Savchenko, E. Bozzo (ISDC/University of Geneva, Switzerland), L. Ducci (IAAT-Tuebingen, Germany)
|
The X-ray transient Cen X-4 harbors the nearest-known accreting neutron star in a low-mass X-ray binary. Emission above quiescence levels in optical, UV and soft X-rays has recently been reported (ATels #14254, #14302, #14303 and #14332), suggesting that Cen X-4 might be entering its third outburst after more than four decades in quiescence. INTEGRAL performed a target of opportunity observation of the source between January 13th UTC 19:56 and January 14th UTC 21:46, 2021 (90 ksec elapsed time during INTEGRAL revolution 2320). Our analyses of JEM-X (3-30 keV) and IBIS/ISGRI (28-80 keV) data do not reveal any detection at the position of Cen X-4 for 37 ksec and 71 ksec effective exposures (corrected for dead time and vigneting), respectively. We thus derive the following flux upper limits at 95% confidence level: 3-10 keV: 2 mCrab 10-25 keV: 5 mCrab 28-40 keV: 2 mCrab 40-80 keV: 3 mCrab The JEM-X light curves do not reveal any significant variations above the background level, which might have suggested thermonuclear bursting activity from the neutron star. These results confirm the most recent observations in soft X-rays, UV and optical (ATel #14317) indicating that Cen X-4 has already returned to quiescent levels.
|
2021-01-19 18:23:00
|
optical,x-ray,gamma ray,binary,neutron star,star,transient
|
2021-01-19
|
18:23:00
| 1,234 |
[
0.00514824828132987,
-0.024008994922041893,
0.039744939655065536,
0.0002634942065924406,
0.08640211075544357,
-0.05242370814085007,
0.0066412645392119884,
0.05002881586551666,
-0.01807212270796299,
-0.028517920523881912,
0.03638309985399246,
-0.0868300274014473,
0.08764125406742096,
-0.009912746958434582,
-0.017991090193390846,
-0.02127651497721672,
-0.025824228301644325,
-0.10970236361026764,
0.009131506085395813,
0.030963381752371788,
-0.028841814026236534,
0.011169328354299068,
0.003860216122120619,
0.01729489117860794,
0.004467506427317858,
-0.040821969509124756,
-0.027045823633670807,
-0.11004180461168289,
0.011896247044205666,
-0.05356919765472412,
0.0009339234093204141,
0.060104768723249435,
0.021565331146121025,
0.03943921998143196,
0.045634981244802475,
0.02957175113260746,
0.06950727850198746,
-0.024485083296895027,
-0.02473033405840397,
-0.04348735883831978,
-0.0038919909857213497,
-0.05100453644990921,
0.057018425315618515,
-0.035081326961517334,
0.025931140407919884,
0.005022939760237932,
-0.0199830811470747,
-0.11207432299852371,
-0.016534438356757164,
0.029745033010840416,
0.05976720526814461,
-0.02916654944419861,
0.04482150077819824,
0.029262810945510864,
0.07814302295446396,
-0.019321663305163383,
-0.044467534869909286,
-0.08389034867286682,
0.026995178312063217,
0.05433981865644455,
0.055653344839811325,
0.005976323504000902,
0.008103187195956707,
-0.029117297381162643,
-0.0006471265805885196,
0.03419497609138489,
-0.008030072785913944,
-0.02745114266872406,
-0.02105874754488468,
0.007023508660495281,
0.01877710409462452,
0.02350872941315174,
-0.046353548765182495,
-0.035805944353342056,
-0.014481090009212494,
0.014482534490525723,
0.09235265105962753,
-0.050497155636548996,
0.002059090184047818,
-0.10552836209535599,
-0.024073824286460876,
0.08414586633443832,
-0.020382817834615707,
-0.06940657645463943,
-0.08631300926208496,
-0.0033421795815229416,
-0.004099961370229721,
0.04816080257296562,
-0.019090082496404648,
0.11644715070724487,
0.059534598141908646,
0.09342151880264282,
-0.04482027143239975,
-0.02183452434837818,
0.1352609246969223,
-0.0027159429155290127,
0.10590296983718872,
-0.04758165031671524,
0.08002052456140518,
0.007385601755231619,
0.011001866310834885,
0.05399728938937187,
-0.10195513814687729,
0.0542287640273571,
-0.018804915249347687,
-0.06825116276741028,
0.06972675025463104,
0.04938051849603653,
-0.10147123783826828,
0.07155201584100723,
0.015120906755328178,
-0.11012731492519379,
-0.0010882436763495207,
-0.07933517545461655,
-0.0259670652449131,
0.033628832548856735,
0.008233868516981602,
0.039324209094047546,
-0.08075038343667984,
-0.06679991632699966,
-0.024365436285734177,
0.06511847674846649,
-0.020688815042376518,
0.08879536390304565,
0.009121961891651154,
0.010721850208938122,
-0.042200107127428055,
3.739504302012954e-33,
0.0357014499604702,
0.06186222657561302,
-0.07766368240118027,
0.01777205429971218,
-0.057875972241163254,
-0.038332317024469376,
0.001752138719893992,
0.051697585731744766,
-0.12232762575149536,
-0.02494751289486885,
-0.04340990632772446,
0.035674817860126495,
-0.0015543341869488358,
-0.06979705393314362,
0.0019072944996878505,
-0.04324471205472946,
0.05366302281618118,
0.06579151004552841,
-0.10210493952035904,
-0.012860097922384739,
-0.030688347294926643,
-0.04897921159863472,
-0.054655771702528,
0.009922430850565434,
0.045101746916770935,
0.03414521738886833,
0.011007795110344887,
-0.025261016562581062,
-0.03756839036941528,
-0.01718618907034397,
-0.0032437057234346867,
0.00905738677829504,
-0.007258967030793428,
0.05839454010128975,
0.004075064789503813,
-0.011118313297629356,
-0.0017363287042826414,
0.003910494036972523,
-0.08026538044214249,
0.044669102877378464,
0.016490869224071503,
0.03370516374707222,
-0.02619275636970997,
-0.056769803166389465,
0.06521940231323242,
-0.027383122593164444,
0.036406587809324265,
-0.07055005431175232,
0.0341513529419899,
-0.006435546558350325,
0.04227214306592941,
-0.0021887957118451595,
-0.06941337883472443,
-0.013677496463060379,
0.041872259229421616,
0.06410949677228928,
0.019518915563821793,
-0.05872160568833351,
-0.03756607323884964,
-0.0081015108153224,
0.07430290430784225,
-0.008468381129205227,
-0.04941706731915474,
0.016192879527807236,
0.0078637870028615,
0.09572243690490723,
-0.030335990712046623,
-0.03814302012324333,
-0.044993720948696136,
0.050118185579776764,
-0.08579903095960617,
-0.04488574340939522,
0.07280872017145157,
-0.09419094771146774,
0.10922586172819138,
0.005633566062897444,
-0.032041024416685104,
0.04423915222287178,
0.010666726157069206,
0.03059336356818676,
-0.0011277421144768596,
-0.04754473268985748,
0.048567432910203934,
-0.05903273820877075,
0.01831579953432083,
0.016017815098166466,
0.01450867298990488,
0.027648936957120895,
0.05546509474515915,
0.007542319595813751,
0.03183254227042198,
-0.10159432142972946,
0.005285617429763079,
-0.004594530910253525,
-0.11110398918390274,
-3.991429271783479e-33,
0.03796908259391785,
0.04456504434347153,
0.019712110981345177,
0.06283009052276611,
-0.04814848676323891,
0.04402788355946541,
-0.021080974489450455,
0.022982986643910408,
-0.011407816782593727,
-0.06838926672935486,
0.026596080511808395,
0.04728157818317413,
0.004164655227214098,
-0.07003612071275711,
0.05127106234431267,
0.02538956142961979,
0.04018574580550194,
0.003288422944024205,
-0.07363059371709824,
-0.0009950370294973254,
0.02968776784837246,
0.002129317494109273,
0.025956477969884872,
-0.10580244660377502,
0.02142518199980259,
0.05136376619338989,
0.08285339921712875,
0.007095342967659235,
0.013923863880336285,
-0.03461605682969093,
-0.12444484233856201,
0.0050347414799034595,
0.0256502628326416,
0.012706799432635307,
0.005698599386960268,
-0.06734389811754227,
-0.01041226927191019,
-0.003974525257945061,
-0.05521761626005173,
0.012223590165376663,
-0.03363092616200447,
0.12266319990158081,
0.004567818716168404,
0.029210438951849937,
-0.026551391929388046,
0.041572604328393936,
0.037379492074251175,
0.10760156810283661,
0.09567650407552719,
0.046435482800006866,
0.030051961541175842,
-0.06322763115167618,
-0.012621380388736725,
0.07051986455917358,
-0.033806394785642624,
0.046518389135599136,
-0.0011962507851421833,
0.0884878933429718,
0.015748072415590286,
-0.03099229745566845,
0.01082616113126278,
-0.0728856697678566,
0.11524505913257599,
-0.0370074138045311,
0.019085364416241646,
-0.06328188627958298,
-0.01055917888879776,
0.09369945526123047,
-0.03861328586935997,
-0.019508391618728638,
0.07854467630386353,
-0.06594894081354141,
-0.039913345128297806,
-0.027159158140420914,
0.013848076574504375,
0.00728972302749753,
-0.03624865040183067,
-0.08977583050727844,
0.00536466296762228,
-0.03187254071235657,
-0.0658235177397728,
0.08625593781471252,
-0.0014525725273415446,
-0.022294949740171432,
0.07187926024198532,
0.04184560105204582,
-0.011851395480334759,
0.02020859904587269,
0.03825666382908821,
-0.0933961421251297,
-0.03925354778766632,
-0.013195119798183441,
0.016637424007058144,
-0.016334814950823784,
0.04368285834789276,
-5.409723158322777e-8,
0.020384741947054863,
0.10097116231918335,
-0.07705000042915344,
0.03719376400113106,
0.04016057401895523,
-0.028745368123054504,
0.008841522969305515,
0.02755371294915676,
0.08304763585329056,
0.001080621499568224,
0.07324463874101639,
-0.010774736292660236,
0.03491615131497383,
-0.14099955558776855,
0.04857645928859711,
-0.03100665472447872,
-0.062746562063694,
-0.11281178891658783,
-0.01642214134335518,
0.050299230962991714,
0.006229386664927006,
-0.008236216381192207,
0.021572990342974663,
-0.04947071522474289,
-0.06939570605754852,
0.0017322507919743657,
0.03318637236952782,
0.08577419817447662,
0.013165397569537163,
-0.07565838098526001,
-0.051379986107349396,
0.03443683311343193,
0.024959038943052292,
-0.04831980541348457,
-0.031370386481285095,
0.050953514873981476,
-0.015355993062257767,
0.016360601410269737,
0.06495317816734314,
0.08170176297426224,
0.017698984593153,
-0.08799710869789124,
0.01812172308564186,
-0.009415889158844948,
-0.11075703799724579,
0.051864784210920334,
0.012181495316326618,
-0.06233121082186699,
0.04188312590122223,
0.012944214977324009,
-0.017049167305231094,
0.015400286763906479,
-0.007582397665828466,
-0.05036279559135437,
-0.04141244292259216,
0.04950389638543129,
-0.013513779267668724,
-0.05829503387212753,
0.009240243583917618,
0.024400006979703903,
0.09378758817911148,
-0.1185789629817009,
-0.039551716297864914,
-0.02728891558945179
] | 14,331 |
14,334 |
Multicolor-optical observation of the flaring blazar BL Lacertae
|
R. Hosokawa, K. L. Murata, M. Niwano, S. Wang, R. Adachi, F. Ogawa, N. Nakamura, N. Ito, S. Ogata, H. Takamatsu, H. Hara, Y. Yatsu, and N. Kawai (TokyoTech) report on behalf of the MITSuME collaboration
|
The flaring blazar BL Lacertae was in the bright state in optical, X-ray and gamma-ray around August 2020 (ATel #13930, #13933, #13956, #13958, #13963, #13964) and in another bright state around October 2020 (ATel #14065, #14069, #14072, #14081, #14096). After that, it was brightening from the end of December 2020, and the brightness reached at R=11.5 on UTC January 17.8, 2021 (ATel #14328, #14329). We monitored the blazar BL Lac with optical three bands (g', Rc, and Ic) using the MITSuME 50 cm Telescopes at Akeno Observatory and Okayama Astrophysical Observatory in Japan. We found that the optical brightness increased from g'=14.3+/-0.1, Rc=13.4+/-0.1, Ic=12.7+/-0.1 on December 25, 2020 (MJD 59208.39) with g'~0.074 mag/day, Rc~0.065 mag/day and Ic~0.056 mag/day, and reached g'=12.6+/-0.1, Rc=11.9+/-0.1, Ic=11.4+/-0.1 on January 17, 2021 (MJD 59231.40). The color became bluer when brightness increased. We used the PS1 catalog for flux calibration. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al., https://doi.org/10.1093/pasj/psaa091, https://arxiv.org/abs/2008.11486; https://github.com/MNiwano/Eclaire).
|
2021-01-20 14:14:00
|
optical,x-ray,gamma ray,blazar
|
2021-01-20
|
14:14:00
| 1,215 |
[
-0.04605397582054138,
-0.07069168984889984,
-0.00645569059997797,
0.11316212266683578,
-0.052872806787490845,
-0.02470441348850727,
-0.033899325877428055,
0.06247589737176895,
-0.0018469688948243856,
0.007604172918945551,
-0.015635773539543152,
-0.02267579175531864,
0.0011415990302339196,
0.025283867493271828,
0.010803944431245327,
0.07776198536157608,
0.00031569102429784834,
-0.11837515234947205,
-0.06706461310386658,
-0.04227342829108238,
0.0669470801949501,
-0.03319479525089264,
0.005409765522927046,
0.10912853479385376,
-0.03261074423789978,
-0.002854469232261181,
-0.012106682173907757,
-0.04229322448372841,
-0.009857786819338799,
-0.044311244040727615,
-0.08697567135095596,
0.01461784541606903,
-0.027917737141251564,
0.026339061558246613,
0.013441885821521282,
-0.07526622712612152,
0.03697459399700165,
-0.02917747013270855,
-0.006553769111633301,
0.0386032909154892,
0.005171129945665598,
-0.05361229553818703,
0.025770744308829308,
0.027671843767166138,
-0.043028783053159714,
-0.05095304921269417,
-0.033697351813316345,
-0.007112316321581602,
-0.053676482290029526,
0.008984765037894249,
0.004199543036520481,
0.028919288888573647,
-0.018355615437030792,
0.011745576746761799,
0.05668037012219429,
0.10576443374156952,
-0.04447919502854347,
-0.03670883551239967,
0.12551137804985046,
0.01436570379883051,
0.029310205951333046,
0.05294325202703476,
-0.061528515070676804,
-0.021309804171323776,
-0.04403273016214371,
0.00907943956553936,
-0.025097602978348732,
-0.11624529212713242,
0.011614255607128143,
-0.02572043053805828,
0.032324060797691345,
-0.07181258499622345,
0.0317116305232048,
-0.05841315537691116,
-0.022234516218304634,
0.008397310972213745,
0.12416989356279373,
-0.025951454415917397,
-0.020878594368696213,
-0.03370490297675133,
0.057527750730514526,
-0.030053745955228806,
-0.02398422360420227,
0.06445547938346863,
0.02824452333152294,
0.01688370667397976,
0.031339582055807114,
0.01178050134330988,
-0.015692291781306267,
0.036610037088394165,
0.06750831753015518,
0.013333441689610481,
-0.09048771113157272,
-0.0497855544090271,
-0.07654406130313873,
0.0343967042863369,
0.052153244614601135,
-0.04746721684932709,
0.026147034019231796,
0.020296482369303703,
0.008037575520575047,
-0.0804717168211937,
-0.04083525389432907,
0.07764455676078796,
-0.10851418226957321,
0.03333134949207306,
0.04883652552962303,
0.04831399396061897,
0.04051193594932556,
-0.059824228286743164,
0.07830291986465454,
0.003771309508010745,
0.023676985874772072,
-0.03857847675681114,
-0.060818225145339966,
0.056540317833423615,
-0.005535458214581013,
0.04729326814413071,
0.013173983432352543,
0.00571342883631587,
0.05386572331190109,
-0.006299671716988087,
0.04602697864174843,
0.04113425314426422,
0.060559388250112534,
-0.006996419280767441,
-0.04434666410088539,
3.6446092144649635e-33,
0.10256682336330414,
-0.0013846304500475526,
-0.04891100898385048,
0.029910912737250328,
-0.04963596910238266,
0.01123170554637909,
-0.006252008955925703,
0.01971573382616043,
-0.12473825365304947,
-0.054442860186100006,
-0.00016540789511054754,
0.060425128787755966,
-0.030656766146421432,
-0.08203881233930588,
0.015143337659537792,
-0.02656736597418785,
0.05952945724129677,
0.04596541076898575,
-0.1243414580821991,
0.09232335537672043,
0.002015516394749284,
0.04170405864715576,
-0.0007055365131236613,
-0.05731486529111862,
0.019019335508346558,
0.12736324965953827,
0.04994739592075348,
0.029120633378624916,
-0.010271814651787281,
0.043257296085357666,
0.09431920945644379,
0.027947699651122093,
-0.0526752695441246,
0.08485997468233109,
-0.09046133607625961,
-0.07761728763580322,
-0.023160122334957123,
-0.015307863242924213,
-0.040314581245183945,
-0.019506249576807022,
0.04156238213181496,
0.07730845361948013,
-0.055349625647068024,
0.0539485365152359,
0.050005409866571426,
0.003243200248107314,
-0.007217406295239925,
-0.018614983186125755,
0.056766197085380554,
0.05695255100727081,
-0.026670973747968674,
-0.010703831911087036,
-0.02644127793610096,
0.02009519189596176,
0.02912106364965439,
0.10794635117053986,
-0.024593861773610115,
-0.021717160940170288,
0.09764910489320755,
0.04583462327718735,
0.07023129612207413,
0.011521418578922749,
-0.010109860450029373,
-0.04276899993419647,
0.05406865105032921,
0.02663480117917061,
0.010844196192920208,
0.05434190854430199,
-0.07498655468225479,
-0.023891424760222435,
0.00042916013626381755,
0.014286881312727928,
0.05054999515414238,
-0.04459577053785324,
0.047555699944496155,
-0.048550140112638474,
0.05055467039346695,
0.06480681151151657,
-0.010543868876993656,
0.01858469843864441,
-0.07176339626312256,
-0.03598408401012421,
0.13961152732372284,
0.001965353963896632,
-0.08484336733818054,
0.0033062167931348085,
-0.021078413352370262,
-0.011214635334908962,
-0.06953074783086777,
-0.06693557649850845,
0.01965680718421936,
-0.054191842675209045,
0.04646945372223854,
-0.030363518744707108,
-0.12205956131219864,
-3.436781078555614e-33,
0.07534950971603394,
-0.030329696834087372,
-0.03884304314851761,
0.013288640417158604,
-0.03088473528623581,
-0.04695332050323486,
0.062061045318841934,
0.05879645422101021,
-0.06187896803021431,
-0.00319340405985713,
0.11302433907985687,
0.07198875397443771,
-0.09787893295288086,
-0.002754788612946868,
0.0009337307419627905,
-0.038119133561849594,
0.08176955580711365,
-0.02848496101796627,
-0.09213799983263016,
0.011571875773370266,
-0.020963549613952637,
0.011807883158326149,
0.011362443678081036,
0.016167672351002693,
0.012830810621380806,
0.03637451305985451,
0.06583060324192047,
-0.049585096538066864,
-0.09793119132518768,
-0.017575614154338837,
-0.08165480941534042,
0.0591173954308033,
-0.01529720053076744,
-0.030642041936516762,
-0.04178104177117348,
0.033623043447732925,
-0.022663289681077003,
-0.11129928380250931,
-0.04386477544903755,
0.02399083413183689,
0.01647239364683628,
0.13998112082481384,
-0.023797644302248955,
-0.021534936502575874,
-0.02386128157377243,
0.020441455766558647,
-0.009722883813083172,
0.060567766427993774,
0.05929233878850937,
-0.028337448835372925,
0.010203256271779537,
-0.0396660640835762,
0.013282999396324158,
0.029033487662672997,
-0.05115469917654991,
-0.034270428121089935,
0.016192298382520676,
0.02761150151491165,
-0.017441602423787117,
0.05307026952505112,
-0.029833491891622543,
-0.00025622479734010994,
0.010097584687173367,
-0.04929674044251442,
0.034129783511161804,
0.06252066045999527,
0.01407503243535757,
-0.015768345445394516,
0.08222345262765884,
-0.024212485179305077,
0.066374771296978,
-0.07033558934926987,
-0.04973765090107918,
0.06097043678164482,
0.019303588196635246,
0.01868164725601673,
-0.007409452460706234,
-0.08496043086051941,
0.0016331844963133335,
0.02373897284269333,
0.026401568204164505,
-0.004694100935012102,
-0.03827688843011856,
-0.03132181614637375,
0.06794765591621399,
-0.0711810365319252,
0.00835931021720171,
-0.08301705121994019,
-0.015764500945806503,
-0.014072293415665627,
-0.059347499161958694,
0.010766731575131416,
0.00238863006234169,
0.011206086724996567,
0.10299941152334213,
-5.295095562019014e-8,
0.004511078353971243,
0.10447628051042557,
-0.08591388165950775,
0.021008554846048355,
0.053678058087825775,
-0.08715871721506119,
0.00947707798331976,
0.015231327153742313,
0.052939970046281815,
-0.02772199548780918,
-0.005132710095494986,
-0.021733669564127922,
0.030481208115816116,
0.0351916141808033,
0.03590444475412369,
0.07767032831907272,
-0.05104614794254303,
-0.09378118067979813,
-0.021640906110405922,
0.021644704043865204,
0.009266656823456287,
0.006455377675592899,
0.0151204289868474,
-0.05806806683540344,
-0.017780166119337082,
0.003403262933716178,
-0.05351794883608818,
0.08982381224632263,
0.07867258042097092,
-0.044696953147649765,
0.041468724608421326,
-0.012416820973157883,
0.041061174124479294,
0.01328555028885603,
0.003835519077256322,
0.01905311457812786,
-0.11494644731283188,
0.057244062423706055,
0.019313417375087738,
0.10779772698879242,
-0.009403758682310581,
-0.053925108164548874,
0.02629123628139496,
0.03221317380666733,
-0.016856959089636803,
-0.0034295059740543365,
-0.04213181883096695,
-0.03964861109852791,
-0.009271606802940369,
0.023823069408535957,
0.003012188943102956,
-0.04995330423116684,
-0.053177494555711746,
-0.03411099314689636,
-0.08323287963867188,
-0.08928221464157104,
0.07919079810380936,
0.029309317469596863,
-0.0342126339673996,
-0.022418994456529617,
0.08090852946043015,
-0.07809928059577942,
-0.071222685277462,
0.01317628938704729
] | 14,332 |
14,335 |
INTEGRAL detection of 2S 1553-542
|
V. A. Lepingwell (Univ. of Southampton, UK), M. Fiocchi (INAF-IAPS Roma, Italy), J. Chenevez (DTU Space, Denmark), A. Bazzano (INAF-IAPS Roma, Italy), A. J. Bird (Univ. of Southampton, UK), V. Sguera (INAF-IASF Bologna, Italy), L. Natalucci, P. Ubertini (INAF-IAPS Roma, Italy), A. Bodaghee (Georgia College & State University, USA), E. Kuulkers (ESA/ESTEC, The Netherlands)
|
The transient source 2S 1553−542 is an accreting X-ray pulsar with a Be optical companion discovered by the SAS-3 observatory in 1975 (Apparao et al., 1978, Nature, 271, 225). Increased activity from the source was detected in 2007 by Swift/BAT and Swift/XRT instruments (ATel #1345, #1371) and one year later by RXTE/PCA (ATel #1373). Activity from this source was also recently reported by Fermi/GBM and Swift/MAXI (ATel #14301 and #14308)
During a recent INTEGRAL public observation of the Galactic Plane (revolution 2321), performed between 2021-01-17 13:41:03 and 2021-01-18 16:58:14 UTC, activity from this transient was detected. The 22-60 keV IBIS/ISGRI flux corresponds to 26.1 ± 2.2 mCrab (2.8 ± 0.2 x 10-10 erg cm-2 s-1) with an effective exposure time of 16 ks.
2S 1553-542 was within the JEM-X field of view at 71 sigmas in the combined JEM-X1 and JEM-X2 mosaic for a total effective exposure of 40.8 ks on the source. The measured fluxes are 57 ± 1 mCrab (8.6 ± 0.1 x 10-10 erg cm-2 s-1) and 58 ± 4 mCrab (6.1 ± 0.4 x 10-10 erg cm-2 s-1) in the energy bands 3-10 and 10-25 keV, respectively.
All the data have been analysed using the Offline Scientific Analysis software version 11.0 (OSA11).
Results from the Galactic Plane Scanning are publicly available at: http://gps.iaps.inaf.it
|
2021-01-20 19:24:00
|
optical,x-ray,pulsar,transient
|
2021-01-20
|
19:24:00
| 1,302 |
[
-0.0900762528181076,
-0.051734328269958496,
-0.024707000702619553,
0.040714360773563385,
0.1183367371559143,
-0.1055801510810852,
0.03529686480760574,
0.060520853847265244,
0.029184352606534958,
0.0007748761563561857,
0.026794133707880974,
-0.04594029486179352,
0.008908526971936226,
-0.0012402718421071768,
-0.0750429630279541,
0.018678702414035797,
0.0013034064322710037,
-0.1270809769630432,
0.0749954953789711,
0.02394101209938526,
-0.015680650249123573,
0.03521963953971863,
-0.07192276418209076,
0.07429024577140808,
0.015092423185706139,
0.047991130501031876,
-0.06537096202373505,
-0.03997713327407837,
0.008813406340777874,
-0.04045575484633446,
-0.00921591930091381,
0.038566429167985916,
-0.05380178615450859,
0.006040310487151146,
0.04621879383921623,
-0.010120310820639133,
0.09715881198644638,
-0.004193246830254793,
0.019829243421554565,
-0.03137931600213051,
-0.012801150791347027,
-0.09131497889757156,
0.02325284108519554,
-0.0018840752309188247,
-0.020719090476632118,
0.018067939206957817,
-0.041629184037446976,
-0.04793486371636391,
-0.10298249870538712,
0.03213692456483841,
0.046922750771045685,
0.03367020934820175,
0.08024849742650986,
0.025938162580132484,
0.06906720250844955,
-0.03731796145439148,
-0.07833278924226761,
0.0034519629552960396,
-0.03172926604747772,
0.0006818757974542677,
0.01008606981486082,
0.014536088332533836,
-0.050210870802402496,
-0.022014109417796135,
0.060355961322784424,
0.016545835882425308,
-0.025195293128490448,
-0.10948207974433899,
0.0678253024816513,
0.03310840576887131,
0.02941053919494152,
0.029162878170609474,
-0.0030030158814042807,
-0.050036147236824036,
0.09119444340467453,
0.028852688148617744,
0.0800430029630661,
0.015858691185712814,
0.0541418232023716,
-0.10815014690160751,
0.03701133653521538,
-0.021796321496367455,
0.027608277276158333,
0.03786041587591171,
0.013352028094232082,
0.014727330766618252,
-0.02995314635336399,
0.05227261781692505,
-0.06660814583301544,
-0.004174164496362209,
0.03820351883769035,
-0.007070088293403387,
-0.019356744363904,
0.05856771394610405,
0.08592206239700317,
0.05433802679181099,
0.01902223378419876,
-0.0061035240069031715,
0.026873240247368813,
0.009343898855149746,
-0.016661399975419044,
0.025734540075063705,
-0.07139561325311661,
0.028183070942759514,
-0.05627644062042236,
-0.044753413647413254,
0.04417044296860695,
0.033312972635030746,
0.003139649983495474,
-0.000023491453248425387,
0.036378879100084305,
-0.015131207183003426,
-0.02467905543744564,
-0.019797246903181076,
0.010583942756056786,
0.032372184097766876,
-0.020087195560336113,
0.04679999500513077,
-0.0598205141723156,
-0.08047159761190414,
-0.042277075350284576,
0.03899473324418068,
-0.05046893283724785,
0.028460487723350525,
-0.02010280080139637,
0.023044314235448837,
-0.04023147374391556,
2.8518563752833897e-33,
0.06252764910459518,
0.09200764447450638,
-0.035566188395023346,
-0.018593793734908104,
-0.07348129898309708,
0.0184480007737875,
-0.0465935543179512,
0.05435771867632866,
0.030234187841415405,
-0.00231151538901031,
-0.03983243554830551,
-0.01958610676229,
0.003395814448595047,
-0.017612723633646965,
-0.021804578602313995,
-0.05415001139044762,
0.06160213425755501,
0.045569177716970444,
-0.03079921565949917,
-0.04092251881957054,
0.012361286208033562,
-0.021806994453072548,
-0.05712786689400673,
-0.02609163336455822,
0.04551926627755165,
0.11721573770046234,
-0.0012335693463683128,
-0.010144651867449284,
0.024142641574144363,
0.04933891072869301,
0.035463571548461914,
0.04360530897974968,
-0.029373373836278915,
-0.002786679659038782,
-0.047170694917440414,
-0.016971571370959282,
-0.047425806522369385,
-0.009562368504703045,
0.013538551516830921,
0.06261295080184937,
0.09536807984113693,
0.09832946956157684,
0.027475185692310333,
0.012566468678414822,
0.048972222954034805,
-0.03837952762842178,
-0.0708530843257904,
0.02970779687166214,
0.0017419562209397554,
-0.011129820719361305,
-0.03776278346776962,
-0.038993991911411285,
-0.10853881388902664,
-0.023208728060126305,
0.05060230568051338,
0.05072944238781929,
0.023202264681458473,
0.0036963196471333504,
0.02941712737083435,
0.002710615750402212,
0.099759541451931,
0.008664719760417938,
0.05710235610604286,
-0.005042861215770245,
0.022007469087839127,
0.024754231795668602,
-0.05543845146894455,
0.0013356793206185102,
-0.10648588091135025,
0.055187247693538666,
-0.0644451305270195,
0.03385122865438461,
0.05620284378528595,
-0.13571684062480927,
0.07363542169332504,
-0.0770363137125969,
-0.060211651027202606,
0.1150217205286026,
0.04440157487988472,
0.0527510866522789,
-0.079706571996212,
-0.10512025654315948,
0.04393184185028076,
-0.03493304178118706,
-0.10663721710443497,
0.00043182881199754775,
-0.03830520063638687,
0.04689153656363487,
-0.03448377549648285,
0.036385174840688705,
0.04148739576339722,
-0.041791919618844986,
-0.01241539977490902,
-0.06038922443985939,
-0.11683519184589386,
-4.14372595253403e-33,
-0.005968022625893354,
-0.020547540858387947,
0.034749843180179596,
0.04027192294597626,
-0.04577730596065521,
0.003005095524713397,
-0.004095806740224361,
0.04525025561451912,
0.029716525226831436,
0.01982295513153076,
0.08192141354084015,
0.07417584210634232,
-0.04707285389304161,
-0.07425491511821747,
0.038701336830854416,
0.023782743141055107,
0.008345657028257847,
0.009715292602777481,
-0.00421782024204731,
0.010017743334174156,
0.03657394275069237,
0.0017911961767822504,
0.02404918149113655,
-0.017209172248840332,
-0.008886357769370079,
0.05483751371502876,
0.08763866871595383,
-0.05722341686487198,
-0.010598470456898212,
-0.005180339328944683,
-0.07290435582399368,
0.05597710236907005,
-0.01732698641717434,
0.01815214194357395,
0.011217200197279453,
-0.017857972532510757,
0.06356827169656754,
0.0019528004340827465,
-0.13272137939929962,
-0.05410734936594963,
-0.023590968921780586,
0.16040021181106567,
-0.0091004129499197,
0.05270054191350937,
0.0016515059396624565,
0.08646455407142639,
0.05597446486353874,
0.04793667420744896,
0.02727651782333851,
-0.011015300638973713,
0.004927969537675381,
-0.04375631362199783,
-0.019531119614839554,
0.14887124300003052,
-0.0021957799326628447,
0.05534914508461952,
-0.031046509742736816,
0.05084323510527611,
-0.011856968514621258,
-0.05262045934796333,
0.03170141205191612,
-0.01608702726662159,
-0.05253943055868149,
-0.04281850904226303,
0.050268515944480896,
-0.02241639792919159,
-0.07362493127584457,
0.08086603134870529,
0.04494627192616463,
-0.04729356989264488,
0.08037194609642029,
-0.0770893543958664,
-0.034337230026721954,
-0.029471978545188904,
-0.0656212642788887,
-0.008631335571408272,
-0.04237594082951546,
-0.10588496178388596,
0.013296986930072308,
-0.0671907290816307,
-0.08678845316171646,
-0.007721735630184412,
0.011000276543200016,
-0.02630688063800335,
0.042661745101213455,
-0.046172093600034714,
0.028716731816530228,
-0.004511919338256121,
-0.0358770489692688,
-0.08918703347444534,
-0.04765111580491066,
0.02945430390536785,
-0.031983520835638046,
0.0016513592563569546,
0.055915653705596924,
-6.043419631396318e-8,
-0.016745824366807938,
0.04332423955202103,
-0.0663444921374321,
0.033846840262413025,
0.011768991127610207,
-0.046576276421546936,
-0.038470517843961716,
0.09841132164001465,
0.04977596923708916,
-0.01232654508203268,
-0.08650075644254684,
-0.017411135137081146,
0.10614345967769623,
-0.09947271645069122,
0.05057968571782112,
-0.0455496571958065,
0.05334323272109032,
-0.06478201597929001,
-0.051692210137844086,
0.02740752324461937,
-0.004249219782650471,
-0.032811712473630905,
0.06847038120031357,
-0.08961154520511627,
-0.034787368029356,
0.03748033195734024,
0.04071781039237976,
-0.04587455093860626,
0.052312348037958145,
-0.07472170144319534,
-0.09104052931070328,
0.019095974043011665,
0.02226760797202587,
-0.028911009430885315,
-0.01959739811718464,
0.06784174591302872,
-0.0733678862452507,
-0.017817797139286995,
0.06500335037708282,
0.02363928034901619,
-0.0063231335952878,
-0.054048776626586914,
-0.015972832217812538,
0.04805593565106392,
-0.042978715151548386,
-0.018728438764810562,
0.014570841565728188,
-0.0868266373872757,
-0.0429413802921772,
-0.00046082219341769814,
-0.025940392166376114,
-0.04599732533097267,
0.08685950189828873,
-0.0345919132232666,
-0.04341081902384758,
0.022350281476974487,
-0.05012887716293335,
-0.08173336088657379,
0.013940135948359966,
-0.003333431202918291,
0.08814635872840881,
-0.03547877073287964,
-0.0641997680068016,
0.03761874511837959
] | 14,333 |
14,336 |
MeerKAT observations revealed a rapid rising outburst of the recurrent black hole GX339-4
|
Evangelia Tremou (Observatoire de Paris), Stephane Corbel (Universite de Paris), Rob Fender (Oxford & UCT), Patrick Woudt (UCT), James Miller-Jones (Curtin), Sara Motta (Oxford), Gregory R. Sivakoff (University of Alberta) on behalf of the ThunderKAT collaboration
|
As part of the ThunderKAT Large Survey Programme (Fender et al. 2017, arXiv:1711.04132), the recurrent black hole transient GX339-4 is observed on a weekly basis with the MeerKAT radio telescope, located in South Africa. The latest MeerKAT observations showed that GX339-4 is likely entering into a new outburst phase.
We report on fluxes of the last three observing epochs, 0.17 hr integration time each. The observation on 2021-01-04 14:20 UTC revealed a point source at the location of GX 339-4 with flux density 264 +/- 25 uJy. On 2021-01-09 08:25 UTC, the flux density increased to 363 +/- 16 uJy, while on 2021-01-16 07:35 UTC it had risen by almost a factor of 3, reaching 1.08 +/- 0.03 mJy.
All observations were taken at a central frequency of 1.284 GHz (L-band) with a total bandwidth of 860MHz. We encourage further multi-wavelength observations.
ThunderKAT will run for 5 years and targets X-ray binaries, cataclysmic variables, supernovae and gamma-ray bursts. As part of this programme we perform weekly monitoring observation of all bright, active, southern hemisphere X-ray binaries in the radio band. For further information on this programme please contact Rob Fender and/or Patrick Woudt.
We thank the staff at the South African Radio Astronomy Observatory (SARAO) for scheduling and carrying out these observations. The MeerKAT telescope is operated by the SARAO, which is a facility of the National Research Foundation, an agency of the Department of Science and Innovation.
|
2021-01-20 22:30:00
|
radio,x-ray,gamma ray,binary,black hole,cataclysmic variable,gamma-ray burst,supernovae,transient,variables
|
2021-01-20
|
22:30:00
| 1,499 |
[
-0.06081785261631012,
0.003285123035311699,
0.051455143839120865,
0.036597494035959244,
-0.01167724747210741,
-0.10317566245794296,
-0.011590748094022274,
0.0048569017089903355,
0.009540179744362831,
-0.05995278060436249,
-0.06749693304300308,
-0.0675545260310173,
0.028957532718777657,
-0.010273215360939503,
-0.01699920929968357,
-0.03516751155257225,
0.0820760503411293,
-0.12999019026756287,
0.03923504054546356,
-0.01624298095703125,
-0.04729156941175461,
0.061076052486896515,
-0.03349391743540764,
0.01982942596077919,
0.06625004857778549,
0.034602195024490356,
0.03377004712820053,
-0.06274209171533585,
-0.006679884623736143,
-0.05242133513092995,
-0.026213325560092926,
0.06269167363643646,
-0.07082274556159973,
0.007456260733306408,
-0.0015342339174821973,
0.04758595675230026,
-0.0026875026524066925,
-0.0018598861061036587,
0.017467640340328217,
0.04088456556200981,
0.003927149344235659,
-0.02842210978269577,
-0.009327958337962627,
0.026209888979792595,
-0.022625472396612167,
-0.015133093111217022,
0.041352685540914536,
-0.02691415138542652,
-0.07565837353467941,
0.016503335908055305,
0.043047599494457245,
-0.030715160071849823,
0.011426216922700405,
0.06401431560516357,
0.022832484915852547,
-0.03242231532931328,
-0.04557288810610771,
-0.023370711132884026,
0.0858599990606308,
-0.01541897002607584,
0.06327235698699951,
-0.03251456841826439,
-0.04006090387701988,
-0.007365003228187561,
-0.003538749646395445,
-0.0036503898445516825,
0.004109250847250223,
0.0038605877198278904,
-0.013828377239406109,
0.009841599501669407,
0.06378637254238129,
0.08220258355140686,
-0.04406335949897766,
-0.17089183628559113,
0.03951131924986839,
0.07266418635845184,
0.06111031398177147,
-0.002267823088914156,
0.05715297535061836,
0.03577471151947975,
0.08699136972427368,
0.08899496495723724,
0.033625468611717224,
-0.03885791823267937,
0.03608192130923271,
-0.0486876405775547,
0.04873275384306908,
0.04643965885043144,
0.040067158639431,
-0.03406241908669472,
0.0005083659198135138,
0.034912679344415665,
-0.06491249054670334,
0.0017231183592230082,
0.05093185976147652,
0.00313002010807395,
0.0009988854872062802,
-0.05630101263523102,
0.0888776183128357,
0.0329602025449276,
0.03823782876133919,
-0.038685142993927,
0.004857886116951704,
0.12000852823257446,
-0.059900473803281784,
-0.005897869355976582,
0.011698778718709946,
0.0534750297665596,
-0.04047758877277374,
-0.023168886080384254,
-0.06424318999052048,
-0.006485673598945141,
-0.02626867964863777,
-0.13767467439174652,
-0.031054958701133728,
0.03155054897069931,
-0.0061023421585559845,
0.0831219032406807,
-0.0886797234416008,
0.015111802145838737,
-0.0055539729073643684,
-0.02148757502436638,
-0.04378136619925499,
-0.015335176140069962,
0.06646636128425598,
0.04241522029042244,
-0.08878534287214279,
5.32831532355382e-33,
0.050136737525463104,
0.025821426883339882,
-0.03926463425159454,
0.0012047349009662867,
0.040648482739925385,
0.02629694528877735,
-0.06189877912402153,
0.06439284980297089,
-0.05622565746307373,
-0.013267254456877708,
-0.04331297054886818,
0.021185943856835365,
0.0021678681951016188,
-0.019206801429390907,
-0.003684288589283824,
-0.008608841337263584,
0.04976077005267143,
0.029794767498970032,
-0.07732472568750381,
0.0352214053273201,
-0.017688557505607605,
-0.0146986348554492,
-0.057767610996961594,
-0.04120120406150818,
0.003339740913361311,
0.07578417658805847,
0.06435851007699966,
-0.03239862993359566,
-0.0053697568364441395,
-0.0019070233684033155,
-0.06070408970117569,
-0.0051683178171515465,
-0.042517807334661484,
-0.015503891743719578,
-0.04650970920920372,
0.017488542944192886,
-0.05904097855091095,
-0.05433058738708496,
-0.05952867865562439,
-0.05053027346730232,
0.0048910691402852535,
0.01975500024855137,
-0.08107996731996536,
-0.05891897901892662,
0.0924014151096344,
-0.014640141278505325,
0.016138272359967232,
-0.0860636755824089,
0.061694398522377014,
0.0363786518573761,
0.06320485472679138,
0.03581402450799942,
-0.06498806178569794,
0.010630334727466106,
0.012446251697838306,
0.06068100780248642,
0.0069695329293608665,
0.007633582688868046,
0.0054144239984452724,
0.027253825217485428,
0.07211554795503616,
0.021897457540035248,
0.01743849366903305,
-0.0320194773375988,
-0.018571095541119576,
0.009098121896386147,
0.0608706958591938,
0.05906779691576958,
-0.012981719337403774,
0.09276066720485687,
0.0072843534871935844,
-0.053885284811258316,
0.0518530048429966,
-0.027537548914551735,
0.028781583532691002,
-0.013108453713357449,
0.07222751528024673,
0.0709616020321846,
0.06590935587882996,
0.0025058884639292955,
-0.020933018997311592,
-0.08226772397756577,
0.06547529250383377,
-0.03936037793755531,
-0.07427256554365158,
-0.03437544405460358,
0.0060266051441431046,
0.06166059523820877,
0.03729022294282913,
-0.020501961931586266,
-0.017125552520155907,
-0.017817726358771324,
-0.0015659842174500227,
0.03784625977277756,
-0.07608470320701599,
-6.308582837907573e-33,
0.04045094922184944,
0.032028678804636,
-0.018361853435635567,
0.013651407323777676,
-0.06560308486223221,
-0.03956576809287071,
-0.0025966099929064512,
0.09817115217447281,
-0.06597493588924408,
-0.08359774202108383,
0.020161109045147896,
0.029766105115413666,
0.010910366661846638,
0.013548235408961773,
0.02865985594689846,
-0.0713474303483963,
0.042054031044244766,
0.024354415014386177,
-0.07785866409540176,
-0.022471342235803604,
0.09770514070987701,
-0.000831551558803767,
0.007716945838183165,
-0.09589888900518417,
-0.03886699676513672,
-0.012017844244837761,
0.09075865894556046,
0.043771397322416306,
-0.010619690641760826,
-0.0193655863404274,
-0.10225499421358109,
0.023619256913661957,
-0.021428555250167847,
0.04236088693141937,
0.014560823328793049,
0.00026752104167826474,
0.031488802284002304,
0.001368956989608705,
-0.03018263168632984,
-0.014041547663509846,
0.04352552443742752,
0.13193993270397186,
0.040013544261455536,
0.11102964729070663,
0.00332532892934978,
0.007703011855483055,
0.04249994829297066,
0.1309049129486084,
0.08814847469329834,
-0.05866080895066261,
-0.012889852747321129,
-0.08173385262489319,
-0.033829543739557266,
0.027343494817614555,
0.02147454023361206,
0.06427036225795746,
0.03169666603207588,
-0.0969221219420433,
-0.009694060310721397,
-0.017047373577952385,
-0.004775227513164282,
0.027170568704605103,
0.05813952907919884,
-0.02524196356534958,
0.018572600558400154,
-0.12452538311481476,
-0.012920689769089222,
0.0015074380207806826,
-0.008422530256211758,
0.09716538339853287,
0.01028341893106699,
-0.03240311145782471,
-0.11434707790613174,
0.018139271065592766,
0.08019658178091049,
0.0892454981803894,
-0.04194164276123047,
-0.0795377716422081,
0.038355108350515366,
-0.03448450192809105,
-0.016122637316584587,
0.016823166981339455,
0.031422439962625504,
-0.0010597343789413571,
0.03643481805920601,
-0.02381875179708004,
0.01568557135760784,
-0.04686944559216499,
0.08162425458431244,
-0.013365603052079678,
-0.0761590376496315,
0.04697113856673241,
-0.031602974981069565,
0.05751294642686844,
-0.03178229182958603,
-5.8277532133388377e-8,
0.052321333438158035,
0.07622029632329941,
-0.04629220440983772,
0.028246469795703888,
0.013735948130488396,
-0.04864231124520302,
-0.02917572669684887,
0.005036445334553719,
0.06145411729812622,
0.0358104407787323,
0.04899870976805687,
-0.08783581852912903,
0.019172728061676025,
-0.07632488757371902,
0.025668742135167122,
0.01956602931022644,
0.0051560127176344395,
-0.13630732893943787,
-0.02576921135187149,
-0.014805877581238747,
-0.004966589156538248,
0.04755889251828194,
0.1335500180721283,
-0.05280490592122078,
0.0655938908457756,
0.002558243228122592,
0.010371512733399868,
0.09628856927156448,
-0.027050316333770752,
-0.05306151136755943,
-0.06089729070663452,
0.040387921035289764,
-0.02792268618941307,
-0.07912479341030121,
-0.10781752318143845,
0.023692796006798744,
-0.017407435923814774,
0.08458031713962555,
0.06921792030334473,
0.025262931361794472,
0.013463503681123257,
-0.0664650946855545,
0.04613819345831871,
0.003677477827295661,
-0.1414688378572464,
0.03345167264342308,
-0.06459452211856842,
-0.10761327296495438,
0.020187752321362495,
0.009559436701238155,
-0.054803069680929184,
-0.04144067317247391,
-0.0050378660671412945,
-0.024974439293146133,
-0.014740834012627602,
-0.02343784086406231,
-0.04442252963781357,
-0.016293825581669807,
-0.014771944843232632,
-0.050510331988334656,
0.008927947841584682,
-0.06299625337123871,
-0.11352191120386124,
-0.0394001267850399
] | 14,334 |
14,337 |
Radio detections of TDEs AT2020ksf and AT2020zso
|
Kate D. Alexander (Northwestern U.), Sjoert van Velzen (Leiden U.), James Miller-Jones, Gemma Anderson (Curtin U.), Edo Berger, Yvette Cendes (Harvard U.), Ryan Chornock, Deanne Coppejans (Northwestern U.), Tarraneh Eftekhari (Harvard U.), Suvi Gezari (STScI), Adelle Goodwin (Curtin U.), Aprajita Hajela (Northwestern U.), Tanmoy Laskar (U. of Bath), Andrew MacFadyen (NYU), Raffaella Margutti (Northwestern U.), Dheeraj Pasham (MIT), Enrico Ramirez-Ruiz (UCSC), Richard Saxton (ESA)
|
We report the first radio observations taken as part of a new VLA Large Program dedicated to tidal disruption events (TDEs). Following their public classification, we observed the TDEs AT2020ksf and AT2020zso on 2020 December 21 with NSF's Karl G. Jansky Very Large Array (VLA). The data were reduced in CASA following standard procedures. We report the detection of faint radio emission coincident with both objects:
Further observations are planned to determine the variability of this emission, and confirm its association with the TDEs.
Our VLA Large Program began in December 2020 and will continue until 2023. We plan to target new publicly-reported TDEs discovered at z < 0.1, to determine the true prevalence of radio emission in TDEs. We will report new results from this program to the community via ATels, TNS AstroNotes, and on our program website. For collaboration, or to suggest new targets, please contact the program PI (Kate Alexander) or one of the program co-Is.
|
2021-01-21 02:20:00
|
radio,tidal disruption event,transient
|
2021-01-21
|
02:20:00
| 984 |
[
0.06798698753118515,
0.013537192717194557,
0.081275574862957,
-0.008112936280667782,
0.016240937635302544,
-0.054527901113033295,
-0.10522124171257019,
-0.014650076627731323,
-0.004030601121485233,
0.018126869574189186,
-0.033859699964523315,
-0.06244508549571037,
0.02735958993434906,
-0.010496772825717926,
0.04498004913330078,
0.015437662601470947,
-0.03247861936688423,
-0.0929005965590477,
-0.06888728588819504,
0.04542365297675133,
-0.07441042363643646,
0.10444685071706772,
-0.11521028727293015,
0.03831563889980316,
0.04482489451766014,
0.0056644221767783165,
-0.09459097683429718,
-0.0317891463637352,
-0.027512021362781525,
0.03549334406852722,
-0.019615409895777702,
0.051112107932567596,
-0.015298274345695972,
-0.030000444501638412,
0.009567920118570328,
0.06121521070599556,
-0.05717100948095322,
-0.08364608138799667,
-0.07638835161924362,
0.030498791486024857,
0.01946862041950226,
-0.04649889096617699,
0.02966659888625145,
-0.03608870133757591,
-0.0824965089559555,
0.0534386932849884,
-0.04547356069087982,
-0.03841402381658554,
0.009045193903148174,
0.045183707028627396,
0.06229250878095627,
-0.04822222888469696,
0.007591016124933958,
0.11523794382810593,
-0.045041773468256,
-0.10547419637441635,
-0.04154609516263008,
-0.048827581107616425,
0.09539300203323364,
-0.02117146924138069,
0.04248540475964546,
0.06852106004953384,
-0.08742908388376236,
-0.03307158872485161,
0.008532519452273846,
0.041051510721445084,
-0.06219276040792465,
-0.02915911376476288,
0.06414077430963516,
0.01919204741716385,
0.003676897380501032,
0.01677507907152176,
-0.012873132713139057,
-0.01564989611506462,
0.02071956917643547,
-0.0427684560418129,
0.04613831639289856,
0.029276609420776367,
0.047883540391922,
-0.07380695641040802,
0.02654397301375866,
-0.030589433386921883,
-0.05172830820083618,
-0.06557700037956238,
-0.000699438329320401,
0.008422846905887127,
-0.0011277167359367013,
0.10292269289493561,
0.05053490772843361,
-0.0010326576884835958,
0.03221245855093002,
0.0204309094697237,
0.025880681350827217,
0.05535808950662613,
0.04622294381260872,
0.0630466416478157,
-0.0057195876725018024,
-0.04153001680970192,
0.07047499716281891,
0.045801155269145966,
0.05892910435795784,
0.06818808615207672,
-0.08292297273874283,
0.013497339561581612,
-0.02504478394985199,
-0.010531130246818066,
-0.03943945840001106,
0.008491122163832188,
-0.08843790739774704,
0.05361972749233246,
-0.023917969316244125,
0.07225415110588074,
0.07326309382915497,
-0.010327540338039398,
-0.04587606340646744,
0.05878399685025215,
-0.01491453219205141,
0.07186038047075272,
-0.022829679772257805,
-0.027468232437968254,
0.05294766649603844,
-0.05210592597723007,
0.02538408897817135,
0.04762076586484909,
0.11870459467172623,
0.04918762296438217,
-0.0616232194006443,
6.785929053257426e-33,
0.04647092893719673,
0.012364882044494152,
-0.0047197164967656136,
0.016126874834299088,
0.04658935219049454,
0.008653921075165272,
-0.13711094856262207,
0.03896637260913849,
0.01685052365064621,
0.0026719875168055296,
-0.09705900400876999,
0.01636168174445629,
0.03319066762924194,
-0.046098895370960236,
0.005609543528407812,
-0.00024412247876171023,
0.019605660811066628,
0.01597069762647152,
-0.1440017819404602,
-0.04225561022758484,
-0.08980975300073624,
-0.036669839173555374,
-0.011056510731577873,
-0.037157002836465836,
-0.036537956446409225,
0.06115434691309929,
-0.00009897089330479503,
0.014979382045567036,
0.0054651061072945595,
0.03125500679016113,
-0.01747041568160057,
-0.06590534001588821,
-0.006814008112996817,
0.03892124071717262,
0.02626432478427887,
0.03729025647044182,
-0.0537906214594841,
-0.026847105473279953,
-0.08978312462568283,
-0.0007543627871200442,
0.10026182979345322,
0.05493167042732239,
-0.06054118275642395,
0.0004035976598970592,
0.07204241305589676,
-0.05964629724621773,
0.07593196630477905,
0.015422613359987736,
0.025699026882648468,
0.01062376331537962,
-0.02276947908103466,
0.033153705298900604,
-0.17308202385902405,
-0.08174028247594833,
0.019797394052147865,
0.11003986746072769,
0.06431439518928528,
0.02115897461771965,
-0.06677599251270294,
0.07752994447946548,
-0.01327987015247345,
0.012718355283141136,
0.040450066328048706,
0.01136923860758543,
-0.0029613333754241467,
0.03374696522951126,
-0.024931197986006737,
0.019117573276162148,
-0.06070028990507126,
-0.032156702131032944,
-0.002854472491890192,
-0.04504050686955452,
0.0669238343834877,
-0.03239094465970993,
0.021951576694846153,
-0.016995687037706375,
0.09308207035064697,
0.046574123203754425,
0.0065259868279099464,
-0.01682688668370247,
-0.07615423947572708,
-0.0077455719001591206,
0.039453230798244476,
-0.04485992342233658,
-0.05724300816655159,
-0.0757596418261528,
-0.034191031008958817,
0.021229976788163185,
-0.044069189578294754,
-0.04901096224784851,
0.002818104811012745,
0.04097720980644226,
0.011860516853630543,
-0.0424509197473526,
-0.09720122069120407,
-8.986324438934188e-33,
-0.1037321537733078,
0.03209984675049782,
-0.03912249952554703,
-0.09485503286123276,
0.019274070858955383,
-0.020261086523532867,
0.003585799830034375,
0.03988068550825119,
-0.0598280094563961,
-0.05467899143695831,
-0.011163693852722645,
-0.0036048833280801773,
-0.012903929688036442,
-0.021220803260803223,
-0.039239730685949326,
-0.045019831508398056,
0.15276657044887543,
-0.02262522652745247,
-0.06666100025177002,
-0.0246531143784523,
0.05031093955039978,
-0.007325053680688143,
0.015425016172230244,
-0.002399049699306488,
-0.0001020367635646835,
0.010753272101283073,
0.09030558168888092,
0.02230975218117237,
0.01617150940001011,
0.01682412624359131,
-0.06523974984884262,
-0.011131861247122288,
-0.017009509727358818,
0.0019637804944068193,
0.08136943727731705,
0.06955677270889282,
0.08894393593072891,
-0.001089228317141533,
-0.0733082965016365,
-0.02405370958149433,
-0.004530118312686682,
0.09929949790239334,
-0.05813860148191452,
-0.03711574524641037,
-0.017254147678613663,
0.030717911198735237,
0.001994999824091792,
0.11328145861625671,
-0.04819395765662193,
0.0025432498659938574,
0.012148094363510609,
-0.05760832130908966,
0.00038343702908605337,
0.06684967130422592,
0.02941717766225338,
0.07021535187959671,
0.0892210379242897,
-0.03300013020634651,
-0.035649050027132034,
-0.08645813167095184,
-0.008617231622338295,
0.0035022853408008814,
-0.029828084632754326,
-0.00868072360754013,
0.03214555233716965,
-0.0024763699620962143,
-0.03010990284383297,
-0.018833160400390625,
-0.03181473910808563,
0.10114402323961258,
-0.03228382766246796,
-0.03222585469484329,
-0.07552860677242279,
-0.07550495117902756,
-0.03710535913705826,
0.021672049537301064,
-0.0669134110212326,
-0.07072804868221283,
-0.0451984703540802,
-0.01806376874446869,
-0.060297440737485886,
0.037691619247198105,
0.03065933845937252,
-0.018728064373135567,
0.06203364208340645,
0.05521567165851593,
-0.021228386089205742,
-0.10775312781333923,
-0.011357340030372143,
0.04931284114718437,
-0.039033059030771255,
0.019467785954475403,
-0.08776707947254181,
0.05027300491929054,
0.013790948316454887,
-6.619463022161653e-8,
0.03191167488694191,
0.04483386129140854,
-0.052695319056510925,
-0.007772787939757109,
0.023765765130519867,
-0.06977400183677673,
0.004557752050459385,
0.050348300486803055,
-0.008379029110074043,
0.03760671243071556,
0.020824454724788666,
0.003916495945304632,
0.017867501825094223,
-0.04929942265152931,
0.035988468676805496,
-0.03568068519234657,
-0.001833334332332015,
0.0023098390083760023,
-0.07859282940626144,
0.0018501701997593045,
0.06724189221858978,
0.04701140895485878,
-0.02696572057902813,
-0.017009804025292397,
0.13127116858959198,
-0.007120260503143072,
0.0788186714053154,
0.09323509782552719,
0.014163048006594181,
-0.08983592689037323,
-0.017039772123098373,
0.016215501353144646,
-0.03509064391255379,
-0.0800313651561737,
-0.052344515919685364,
0.04798106104135513,
0.004587626550346613,
0.0207839272916317,
-0.004992233589291573,
0.06474582850933075,
-0.00036813493352383375,
0.00616236450150609,
-0.08108218014240265,
0.04639677703380585,
0.045656878501176834,
0.035961128771305084,
0.008788450621068478,
0.025760840624570847,
0.032571498304605484,
-0.0758468508720398,
0.009934186935424805,
-0.062310148030519485,
0.012983753345906734,
-0.03421279415488243,
0.03589315712451935,
0.0315709263086319,
-0.04471726343035698,
-0.060223907232284546,
-0.02031952142715454,
0.025797536596655846,
-0.0039314813911914825,
-0.020639693364501,
-0.08853779733181,
0.021251780912280083
] | 14,335 |
14,338 |
Dust formation in V1112 Per (Nova Per 2020)
|
D. P. K. Banerjee (PRL, India), Vishal Joshi (PRL, India), G. C. Anupama (IIA, India), U. Munari (INAF Padova), K. De (Caltech), M. M. Kasliwal (Caltech), Mudit Srivastava (PRL), Sandipan Borthakur (PRL) and the DOT team, Devasthal, India.
|
We report near-infrared JHK band photometry of Nova Per 2020 on 15.56 Jan 2021 UT obtained with TIRCAM2 (Baug, T. et al. 2018, JAI, 7) on the 3.6-m Devasthal Optical Telescope (DOT). The nova was discovered in outburst on Nov 25.807 UT as TCP J04291884+4354232 by Seiji Ueda, Japan (ATel #14229). The brightness of the nova had been seen to decline rather sharply in the B and V bands, by about 4-5 magnitudes since ~ 5 Jan 2021, with a marked reddening of colors suggesting the onset of dust formation. The observations reported here confirm this. Our photometry, done by defocussing the star to avoid saturation of the detector, and calibrated against 2MASS field stars and the standard star A0V star HD 18881, yields values of J = 8.25 +/- 0.1, H = 6.4 +/- 0.3 and K = 4.6 +/- 0.4. The J magnitude is consistent with the fading trend seen in the preceding and succeeding observations of J = 8.15 +/- 0.01 on Jan 14 and J = 8.54 +/- 0.01 on Jan 19 made from the Palomar Gattini-IR survey (Moore & Kasliwal 2019).
Considering novae have (B- V) ~ 0.23 and 0.0 respectively at maximum and t2 (Van den Bergh and Younger, 1987), the reddening E(B-V) is estimated to be ~ 0.60-0.65 (this is a preliminary estimate, courtesy data from AAVSO light curves). Other estimates for E(B-V) are in the range 0.77-0.82 using the strength(s) of the interstellar NaI doublet and DIB features (ATel #14229). Correcting for the extinction accordingly, the dereddened (J-K) color of the nova is large and in the range 3.2 to 3.3 which clearly indicates that the nova has formed dust. Further monitoring of V1112 Per is encouraged. We thank the DOT team (Aryabhatta Research Institute of Observational Sciences; ARIES) for approving and facilitating early observations of the nova and also thank the staff at the Devasthal Observatory for their support.
|
2021-01-21 03:49:00
|
infra-red,optical,nova,star
|
2021-01-21
|
03:49:00
| 1,834 |
[
-0.0881781280040741,
0.0009400203125551343,
0.05121558532118797,
0.03502696007490158,
-0.0004688026092480868,
-0.0630013644695282,
-0.039146486669778824,
0.019074207171797752,
0.02123655378818512,
0.04984106123447418,
-0.07103149592876434,
-0.0793287456035614,
-0.0022600400261580944,
-0.03184104710817337,
0.052733078598976135,
0.007231784053146839,
0.019969936460256577,
-0.05393544211983681,
0.019531020894646645,
-0.00012114788114558905,
-0.030395623296499252,
0.04166840389370918,
-0.08963009715080261,
-0.023262212052941322,
0.03293300420045853,
0.04076167568564415,
-0.025681117549538612,
-0.05039908364415169,
0.0010572167811915278,
0.013025236316025257,
-0.025791417807340622,
0.044571660459041595,
-0.09404356777667999,
0.06289055943489075,
0.011912241578102112,
-0.04845071956515312,
0.011634716764092445,
-0.024827061221003532,
-0.03421805426478386,
-0.04616900533437729,
-0.007664965000003576,
-0.051487233489751816,
-0.04566103592514992,
-0.06366901099681854,
-0.01818522810935974,
0.016981670632958412,
-0.028591332957148552,
-0.03266467899084091,
-0.07188615947961807,
0.03340063989162445,
-0.04871073365211487,
-0.048204708844423294,
0.027628077194094658,
-0.012038733810186386,
0.04476427659392357,
-0.01902640424668789,
-0.01581302471458912,
-0.024306323379278183,
0.08068658411502838,
0.029750308021903038,
0.0562443844974041,
-0.06071246787905693,
-0.09493337571620941,
-0.07148342579603195,
0.08210966736078262,
0.012444774620234966,
0.011298319324851036,
-0.027704015374183655,
0.0729551613330841,
-0.007195004727691412,
0.00478861341252923,
0.06450420618057251,
0.022426960989832878,
0.004978537559509277,
-0.03180698677897453,
0.040761448442935944,
0.13501517474651337,
0.04800570756196976,
0.08224979788064957,
-0.04442749544978142,
0.0336969718337059,
0.03296898305416107,
0.00010099861538037658,
0.05873286351561546,
-0.04458928480744362,
0.04664524644613266,
-0.05184511840343475,
0.04017173871397972,
-0.0174555741250515,
0.007967743091285229,
0.052629463374614716,
0.009922132827341557,
-0.10149873793125153,
-0.002776345470920205,
0.016827339306473732,
0.0013439228059723973,
-0.010194491595029831,
-0.005442387890070677,
0.0381472185254097,
0.024487877264618874,
0.03792194649577141,
0.010710769332945347,
-0.10426827520132065,
0.09728819876909256,
-0.08624588698148727,
0.024559037759900093,
0.0149616077542305,
-0.040662024170160294,
-0.017360078170895576,
0.07199941575527191,
0.06086234003305435,
0.04173087328672409,
-0.05609240010380745,
-0.053420864045619965,
-0.01024402305483818,
0.023948540911078453,
-0.04099064692854881,
0.09547965228557587,
-0.06912704557180405,
-0.028814824298024178,
-0.04314402863383293,
0.0797802060842514,
0.0005072270287200809,
0.05992468446493149,
0.07097112387418747,
0.039818741381168365,
-0.0740431696176529,
4.360463600938643e-33,
0.06257558614015579,
0.06914389133453369,
0.010481384582817554,
-0.005005809012800455,
0.004306338727474213,
-0.0677352249622345,
-0.00942857377231121,
0.05310030281543732,
-0.08084595203399658,
-0.06885051727294922,
0.0015685673570260406,
-0.010011047124862671,
0.03481544926762581,
-0.022222090512514114,
0.005789754446595907,
-0.054971419274806976,
0.09237628430128098,
-0.01828034780919552,
-0.13799618184566498,
0.03747512772679329,
-0.06125204637646675,
0.010534098371863365,
0.002742260927334428,
0.01525926124304533,
-0.0628892108798027,
0.09294454008340836,
0.028609978035092354,
0.024340173229575157,
-0.013832233846187592,
0.03764132410287857,
0.04006138816475868,
0.0022400447633117437,
0.026392141357064247,
0.049949295818805695,
0.0152907595038414,
-0.06423725187778473,
-0.04526616632938385,
0.006965616252273321,
-0.028389792889356613,
-0.00819523073732853,
0.023190686479210854,
0.07040823251008987,
-0.08505728840827942,
0.08340480923652649,
0.024024033918976784,
-0.05666234344244003,
-0.01527251023799181,
-0.02234088070690632,
0.07583402842283249,
0.03798272833228111,
-0.04006354510784149,
-0.01711159758269787,
-0.08272068947553635,
-0.03736524283885956,
0.020682042464613914,
0.058098554611206055,
0.025924675166606903,
-0.08241848647594452,
-0.0053224703297019005,
-0.03551420196890831,
0.04667683318257332,
-0.07079378515481949,
0.040269650518894196,
0.06773005425930023,
-0.04781521484255791,
0.05338586866855621,
-0.01571337692439556,
0.04513312503695488,
-0.024985413998365402,
0.0286250077188015,
-0.03289590775966644,
0.11347538232803345,
0.08747117966413498,
-0.037421196699142456,
0.06954381614923477,
-0.0506911426782608,
0.06777907907962799,
0.06946559250354767,
-0.02079896628856659,
0.034645926207304,
-0.036720987409353256,
-0.01615041121840477,
0.04734756797552109,
-0.10373227298259735,
-0.06096016243100166,
-0.03093438781797886,
-0.02555716224014759,
0.008058715611696243,
0.015330442227423191,
-0.001877819886431098,
0.0394224151968956,
0.01742914505302906,
-0.0305065605789423,
-0.033074114471673965,
-0.14739921689033508,
-6.054795811616949e-33,
0.06513869017362595,
0.061134856194257736,
-0.09008795768022537,
0.008050383068621159,
-0.004080639686435461,
0.014221337623894215,
0.02211000956594944,
0.0393277108669281,
-0.08146893978118896,
-0.006294501479715109,
0.04966200143098831,
0.10956030339002609,
-0.022786108776926994,
-0.055520959198474884,
-0.008835838176310062,
-0.02654288522899151,
0.022447284311056137,
-0.03942452743649483,
0.005030863452702761,
-0.051505573093891144,
-0.009065508842468262,
-0.01981012336909771,
0.03313935175538063,
-0.0522305965423584,
0.031047668308019638,
-0.06106473132967949,
0.0008259266032837331,
0.011377557180821896,
-0.10247725993394852,
-0.05136233940720558,
0.03459121286869049,
-0.04794906824827194,
0.009865825064480305,
0.017711501568555832,
0.03258218243718147,
0.022214315831661224,
0.0606113076210022,
-0.09029173851013184,
-0.0566745325922966,
-0.00003141758497804403,
-0.06232801452279091,
0.05543483421206474,
-0.04183191806077957,
-0.009959635324776173,
-0.029758606106042862,
-0.014196796342730522,
0.036298591643571854,
0.12893100082874298,
-0.01616198942065239,
-0.07326720654964447,
0.07341384142637253,
-0.019479386508464813,
0.023726889863610268,
0.07170474529266357,
-0.03350716084241867,
0.08631151169538498,
0.03398939222097397,
0.08218231797218323,
-0.019027046859264374,
0.07956421375274658,
0.048614200204610825,
-0.017361965030431747,
-0.013402399607002735,
-0.023433320224285126,
0.046209562569856644,
-0.021681737154722214,
0.04188374802470207,
0.12230687588453293,
0.03217025846242905,
0.0237127598375082,
0.008295560255646706,
-0.020522234961390495,
-0.05087418854236603,
0.010654419660568237,
0.05191083997488022,
-0.009598401375114918,
-0.02900911495089531,
-0.07343734055757523,
-0.00802620593458414,
0.015773547813296318,
-0.05231137573719025,
0.06332303583621979,
0.004728993866592646,
0.0025218927767127752,
0.06659974157810211,
0.05133873596787453,
-0.004318417515605688,
-0.035633452236652374,
-0.0873028114438057,
-0.005780064035207033,
-0.020362116396427155,
-0.055088259279727936,
-0.04647010564804077,
0.03404897823929787,
0.06620737165212631,
-6.103140037794219e-8,
0.05954895168542862,
0.01354812178760767,
-0.08249642699956894,
0.04104260727763176,
0.06315601617097855,
-0.0776669830083847,
0.024381784722208977,
0.0705505907535553,
0.00599106028676033,
0.05547739565372467,
-0.0078714769333601,
-0.08390793204307556,
-0.0002869856252800673,
-0.025333363562822342,
0.02523217163980007,
-0.06757355481386185,
-0.012703388929367065,
-0.045896273106336594,
-0.07833091914653778,
0.02834700420498848,
0.033260732889175415,
0.04958104342222214,
0.03073287382721901,
-0.08145686239004135,
0.0166061669588089,
0.03861536458134651,
-0.029963448643684387,
0.03686296567320824,
-0.004957699682563543,
-0.04482128843665123,
-0.037837252020835876,
-0.01561595220118761,
0.04669817537069321,
-0.11335622519254684,
-0.07000887393951416,
0.03427693247795105,
-0.06415147334337234,
0.05214556306600571,
0.06912415474653244,
0.079928919672966,
0.052176471799612045,
0.0038809776306152344,
0.0402308888733387,
0.0680234432220459,
-0.07106031477451324,
0.059861861169338226,
-0.018466727808117867,
-0.12664476037025452,
-0.017738373950123787,
-0.0419040285050869,
-0.022848833352327347,
0.048311665654182434,
-0.012640164233744144,
-0.004144643433392048,
-0.11754808574914932,
-0.006430451292544603,
-0.08935541659593582,
-0.0848187506198883,
0.002643400803208351,
0.010120728053152561,
0.09968949854373932,
-0.06568775326013565,
-0.11996582895517349,
0.03446976840496063
] | 14,336 |
14,339 |
MASTER OT J105242.66+152355.0 discovery as possibly optical counterpart of Fermi GRB 210120A
|
V. Lipunov (Lomonosov MSU), R. Podesta (OAFA), V. Kornilov, E. Gorbovskoy, O. Gress, N. Tiurina, P. Balanutsa, F. Balakin, V. Vladimirov, A. Kuznetsov, K. Zhirkov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, A. Pozdnyakov, V. Topolev, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), C. Lopez, F. Podesta, C. Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), N. M. Budnev (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveshchensk State Pedagogical University), T. Pogrosheva, V. Shumkov, E. Minkina, V. Grinshpun
|
MASTER OT J105242.66+152355.0 discovery - optical counterpart of Fermi GRB 210120A
MASTER-OAFA robotic telescope (MASTER-Net: http://observ.pereplet.ru Lipunov et al.,2010,Advances in Astronomy,2010,30L) automatically was pointed (Lipunov et al. GCN #29336) to Fermi GRB210120A (Ttrigger=07:10:44UT, Fermi GCN #29334, BALROG localization Biltzinger et al. GCN #29335, Barthelmy GRB210120A page https://gcn.gsfc.nasa.gov/other/210120A.gcn3) 80s after notice time (143s after trigger time) at 2021-01-20 07:13:07UT (see cover map and OT position)
MASTER auto-detection system (Lipunov et al. 2010) discovered fast changing optical transient MASTER OT J105242.66+152355.0 / AT2021axc at (RA, Dec) = 10h 52m 42.66s +15d 23m 55.0s at 2021-01-20 07:20:30UT with unfiltered m_OT=18.6 at the beginning stage.
The OT is seen at several images. There is no any sources at this place in MASTER database since 2004. The nearest source in VIZIER is SDSS galaxy in 4.9" with rmag(as most closest to MASTER unfiltered)=22.217 (22.088 in PanSTARRS).
Deep photometry and spectral observations are required
|
2021-01-21 05:06:00
|
optical,gamma ray,gamma-ray burst,transient,variables,request for observations
|
2021-01-21
|
05:06:00
| 1,092 |
[
-0.04695938527584076,
-0.051212064921855927,
-0.0519186332821846,
0.04208724945783615,
0.031085439026355743,
-0.03259303793311119,
-0.04785337299108505,
-0.027098990976810455,
0.019868163391947746,
0.0017668470973148942,
-0.04411298409104347,
-0.03964651748538017,
-0.04006253927946091,
-0.04984503239393234,
0.08241904526948929,
0.004963533021509647,
0.0021068642381578684,
-0.07233321666717529,
0.005950647871941328,
0.040749721229076385,
0.012921972200274467,
-0.0016991866286844015,
-0.05994654446840286,
-0.021814968436956406,
0.04835715889930725,
0.012758477590978146,
-0.12776055932044983,
-0.02264469675719738,
-0.04831049591302872,
-0.025000303983688354,
-0.020032262429594994,
0.03764750808477402,
-0.10524846613407135,
0.04602722078561783,
0.013042946346104145,
0.022742193192243576,
-0.05098484084010124,
-0.021180564537644386,
0.006004836410284042,
0.011327091604471207,
0.04329019784927368,
0.03634868934750557,
-0.04259097948670387,
-0.003227988025173545,
0.022350618615746498,
-0.0208822563290596,
0.014712858945131302,
0.032088298350572586,
-0.03111674264073372,
-0.08412324637174606,
0.015192062593996525,
0.03332766890525818,
-0.04847746342420578,
0.06736917793750763,
-0.03260497748851776,
0.0399300642311573,
-0.056534744799137115,
-0.028321996331214905,
0.07281864434480667,
0.02335844561457634,
-0.005330209620296955,
-0.010878303088247776,
-0.05792007967829704,
-0.024990806356072426,
0.01115712895989418,
-0.0894559696316719,
-0.07284728437662125,
-0.027452485635876656,
-0.009664390236139297,
0.03949204832315445,
-0.015543404035270214,
0.06341917812824249,
-0.06465404480695724,
-0.11361466348171234,
-0.0203429963439703,
0.0632857158780098,
0.0729016363620758,
0.05392586439847946,
0.03659779578447342,
-0.02763027511537075,
-0.03223880007863045,
0.03710482269525528,
-0.02098020352423191,
0.009839915670454502,
-0.029599711298942566,
-0.041865237057209015,
0.049546949565410614,
0.03663354367017746,
-0.04778251051902771,
-0.0006117977318353951,
0.10853291302919388,
0.07212288677692413,
-0.021767932921648026,
-0.019307266920804977,
0.007977498695254326,
0.03371645510196686,
0.05704116076231003,
-0.021491583436727524,
0.014670982025563717,
-0.029671430587768555,
0.0243083406239748,
-0.05206659808754921,
-0.052735585719347,
0.03651140257716179,
0.01393174659460783,
0.10014043748378754,
0.09375650435686111,
0.06574926525354385,
-0.027429724112153053,
0.05934993922710419,
-0.08668391406536102,
0.05096900463104248,
0.03048430196940899,
0.004678548313677311,
0.02381497249007225,
0.021018745377659798,
-0.016500994563102722,
0.09487229585647583,
-0.125346839427948,
0.03612109646201134,
-0.07674156129360199,
0.06408438831567764,
0.03069356456398964,
0.062186986207962036,
0.012024028226733208,
0.06734544038772583,
-0.026269705966114998,
5.562629551239104e-33,
0.09273727983236313,
0.0014844207325950265,
-0.03917767480015755,
-0.05113421753048897,
0.01927022449672222,
0.04390263184905052,
-0.10959271341562271,
0.12458671629428864,
-0.015077409334480762,
0.017159106209874153,
-0.12136168777942657,
0.011049588210880756,
-0.0018044337630271912,
0.0076986756175756454,
-0.07334241271018982,
0.02287420444190502,
0.07414771616458893,
0.04766327515244484,
-0.07981579005718231,
0.05118323862552643,
-0.014793417416512966,
0.08187992870807648,
-0.05455847084522247,
-0.06965485960245132,
-0.02037820592522621,
0.05288860946893692,
0.05957287922501564,
-0.06559781730175018,
-0.06964968144893646,
0.030138345435261726,
0.047742389142513275,
-0.069588802754879,
-0.012651927769184113,
0.00048009719466790557,
0.0019499496556818485,
-0.041955795139074326,
-0.06198359280824661,
0.03611147776246071,
-0.07340476661920547,
-0.07089558988809586,
-0.006683977786451578,
-0.03491152450442314,
-0.0485774390399456,
0.13098981976509094,
-0.026610052213072777,
-0.00031614923500455916,
0.0642298087477684,
0.06879566609859467,
0.005598768126219511,
0.008691499009728432,
-0.011074922047555447,
-0.0024189315736293793,
-0.0758327916264534,
0.09205889701843262,
0.032869189977645874,
0.07121973484754562,
0.08807574957609177,
-0.025726495310664177,
-0.02541170082986355,
-0.02147231623530388,
0.023799842223525047,
-0.04454744979739189,
0.004127996973693371,
-0.06096344068646431,
-0.020868448540568352,
0.05037182196974754,
-0.02841946855187416,
0.09690143913030624,
-0.0055799223482608795,
-0.044159069657325745,
0.01905605010688305,
0.008662749081850052,
0.042327459901571274,
-0.013767979107797146,
0.04809994995594025,
-0.041613269597291946,
0.05616311728954315,
0.0009138481109403074,
0.07790662348270416,
0.03117360733449459,
-0.047463901340961456,
-0.032285045832395554,
0.02870790660381317,
-0.1637878715991974,
-0.10515133291482925,
-0.024205783382058144,
-0.003861794015392661,
0.028819294646382332,
-0.045908015221357346,
-0.08365017175674438,
0.07831940054893494,
0.005219184793531895,
0.0759061649441719,
-0.04412459582090378,
-0.054497797042131424,
-7.926818319759444e-33,
0.06578041613101959,
-0.042383622378110886,
-0.017685651779174805,
-0.027995428070425987,
0.06739533692598343,
0.06569331884384155,
-0.016466518864035606,
0.057970788329839706,
-0.12978073954582214,
-0.0519002303481102,
0.026819951832294464,
-0.0329047255218029,
-0.10472170263528824,
-0.053632866591215134,
0.034363798797130585,
-0.03472796827554703,
0.033719707280397415,
0.074212446808815,
-0.04839802160859108,
-0.009392700158059597,
-0.03908855468034744,
-0.008882634341716766,
0.059807825833559036,
0.033494994044303894,
-0.023092616349458694,
-0.005063822492957115,
0.06121361255645752,
-0.04603132978081703,
0.01768706925213337,
0.09601157903671265,
-0.05846590921282768,
0.043360888957977295,
-0.06674990803003311,
0.07821858674287796,
-0.018778683617711067,
0.03608592227101326,
-0.026079086586833,
-0.040590304881334305,
-0.10238906741142273,
0.06569395959377289,
0.04458116739988327,
0.08098790794610977,
-0.022638652473688126,
-0.07582689076662064,
0.01183342281728983,
-0.01981748454272747,
-0.012540332973003387,
0.08387410640716553,
0.03917892277240753,
0.033682383596897125,
-0.004185454919934273,
-0.06150825694203377,
0.016115278005599976,
0.10430407524108887,
0.05259929969906807,
0.07850933074951172,
0.03020520880818367,
0.019257904961705208,
-0.032139331102371216,
-0.0910198912024498,
-0.006189672742038965,
-0.0643284022808075,
0.04229877144098282,
0.0013330933870747685,
0.04636897146701813,
-0.05330544337630272,
0.03785945847630501,
0.07831082493066788,
0.01978389173746109,
0.03075011633336544,
0.05282947048544884,
-0.07062974572181702,
-0.020851368084549904,
0.00712587870657444,
0.05789204314351082,
0.07289300113916397,
0.021622078493237495,
-0.0548921674489975,
0.014917680993676186,
-0.0621725358068943,
-0.04699619114398956,
0.06458067148923874,
0.035583361983299255,
-0.02501755766570568,
0.0525532141327858,
-0.012035787105560303,
-0.032830435782670975,
-0.11692212522029877,
-0.0288318432867527,
0.06603270024061203,
0.05317162349820137,
0.05183606594800949,
0.04250042140483856,
0.04503120481967926,
0.00972113199532032,
-5.457354035343087e-8,
0.04150477796792984,
0.028115639463067055,
0.013372205197811127,
0.059258945286273956,
-0.00008521968993591145,
-0.05073932930827141,
-0.0637328252196312,
-0.019023505970835686,
-0.010852797888219357,
0.031146930530667305,
0.035295527428388596,
-0.03616946190595627,
0.07501830905675888,
-0.10670609027147293,
-0.025725726038217545,
-0.02011949196457863,
-0.014876320958137512,
-0.10880555212497711,
0.015027076005935669,
0.02920965664088726,
0.03417529910802841,
0.04554072022438049,
-0.0143145602196455,
0.013416617177426815,
0.04264698550105095,
0.03209532052278519,
0.003383299335837364,
0.03520333394408226,
0.011585419997572899,
0.0009460694273002446,
-0.020969996228814125,
-0.008526898920536041,
0.022754289209842682,
-0.05325169861316681,
-0.0344318263232708,
0.06449811905622482,
-0.06250715255737305,
0.016408786177635193,
0.010430146008729935,
0.06247209385037422,
-0.017528796568512917,
-0.03456898033618927,
0.05185754969716072,
-0.013313661329448223,
-0.03233363851904869,
0.05730002373456955,
0.004911734722554684,
-0.015334092080593109,
-0.043091949075460434,
0.0027060520369559526,
-0.016322163864970207,
-0.030663445591926575,
-0.012477324344217777,
-0.028715461492538452,
-0.04445551335811615,
-0.04537007585167885,
-0.10276723653078079,
0.01673058234155178,
-0.03177565708756447,
-0.013861331157386303,
0.009605804458260536,
-0.06830984354019165,
-0.1302872896194458,
-0.022495225071907043
] | 14,337 |
14,340 |
Speckle observations of the nearby multiple star HR 6819 with a proposed nonaccreting black-hole component
|
Robert Klement (CHARA Array of Georgia State University), Nic Scott (NASA Ames Research Center), Thomas Rivinius (European Southern Observatory, Chile), Dietrich Baade (European Southern Observatory, Germany), Petr Hadrava (Astronomical Institute of the Czech Academy of Sciences)
|
HR6819 is a bright multiple star containing a moderately evolved classical Be star. Rivinius et al. (2020, A&A, 637L, 3) found the system to be a triple star with the Be star in a wide orbit with an unconstrained period around an inner 40-d binary consisting of a B3III star and a nonaccreting black hole. This was challenged by Bodensteiner et al. (2020, A&A, 641A, 43) who proposed HR6819 to be a binary star with a 40-d period containing the Be star along with a low-mass envelope-stripped B star that is caught in an extremely short phase of its evolution. For the binary model with distance of 340 pc, inclination angle i = 32 deg, and the combined semi-major axis (a1 + a2) sin i = 51.4 Rsun, the maximum angular separation of the two stars amounts to about 1.3 milliarcseconds. By contrast, in the ternary model with the wide, possibly decade-long outer orbit, the separation of the two luminous components can easily be two orders of magnitude larger.
Speckle observations of HR6819 were taken on October 24, 2020 at a seeing of 0.75â with the Zorro imager on the Gemini South telescope in Cerro Pachon, Chile (Scott et al. 2018, PASP, 130, 4502, https://www.gemini.edu/instrumentation/current-instruments/alopeke-zorro). Data cubes consisting of sets of 1,000 x 60ms exposures were acquired in both the 716 and 832-nm bands for HR6819 and a point source calibration star. These data were reduced following the procedures described in Howell et al. (2011, AJ, 142, 19). Interferometric fringes were observed and the reconstructed images show a companion at a separation of 120 milliarcseconds and position angle (North through East) of 88 deg. The data-reduction pipeline did not converge on the magnitude difference. If the observed companion is not a chance superposition (and if the magnitude difference is small), this would exclude the binary model. For confirmation, further observations are needed.
|
2021-01-21 15:17:00
|
optical,binary,black hole,star
|
2021-01-21
|
15:17:00
| 1,916 |
[
-0.07348034530878067,
-0.02089916542172432,
-0.047477059066295624,
0.021370235830545425,
-0.0642102062702179,
-0.019227327778935432,
-0.09643619507551193,
-0.03442007303237915,
0.022173697128891945,
-0.02621540054678917,
-0.07687406986951828,
-0.003816318931058049,
0.028545282781124115,
-0.07878123223781586,
0.052779421210289,
-0.020192306488752365,
-0.01918492093682289,
-0.09160415083169937,
0.02944153919816017,
0.08800770342350006,
0.06320332735776901,
0.048692233860492706,
0.0005741852219216526,
0.07292820513248444,
0.0320550799369812,
-0.053139448165893555,
0.02145179733633995,
-0.01577080972492695,
0.027589868754148483,
-0.05504007637500763,
0.04645406827330589,
0.06332755833864212,
-0.008920040912926197,
0.02794908545911312,
0.04001898691058159,
0.0024191495031118393,
-0.015325967222452164,
-0.032389085739851,
-0.03182801231741905,
-0.0018998760497197509,
0.011698948219418526,
-0.016445985063910484,
0.02142198197543621,
0.03647540137171745,
-0.020007582381367683,
0.007915018126368523,
-0.07944570481777191,
-0.015147881582379341,
-0.0008349141571670771,
-0.07790861278772354,
-0.022677402943372726,
-0.007603073958307505,
0.03444327414035797,
0.06497540324926376,
0.06795447319746017,
-0.04629575088620186,
-0.05243083834648132,
-0.05265023559331894,
0.051990408450365067,
-0.010542400181293488,
0.03253202885389328,
0.03272246569395065,
-0.013809078373014927,
-0.03781701251864433,
0.0623018853366375,
0.029835306107997894,
-0.1536601483821869,
-0.052859894931316376,
-0.0694054588675499,
0.04395675286650658,
-0.020507266744971275,
-0.020226063206791878,
-0.0313459075987339,
0.01287165842950344,
0.06947214156389236,
0.02800934761762619,
0.11302241683006287,
0.02652857080101967,
0.003023747354745865,
-0.0479271300137043,
0.03250379487872124,
0.004665852058678865,
0.013718809001147747,
0.066832035779953,
-0.05903663486242294,
-0.07964858412742615,
-0.09003349393606186,
0.008175610564649105,
0.023392362520098686,
0.020228587090969086,
0.031623028218746185,
0.029893875122070312,
-0.07534155249595642,
-0.11225488036870956,
0.0837012380361557,
-0.0013040951453149319,
0.02153610624372959,
-0.030990904197096825,
0.12195646017789841,
0.0704171434044838,
0.04387917369604111,
-0.03753774240612984,
-0.04575236514210701,
0.038392651826143265,
0.06467428803443909,
0.012158343568444252,
0.055902328342199326,
0.03333556652069092,
-0.008184281177818775,
0.0024351514875888824,
0.060213685035705566,
0.038165535777807236,
0.009110219776630402,
-0.018364449962973595,
0.00015890302893240005,
-0.011082908138632774,
-0.05306918919086456,
0.05702846497297287,
0.012586991302669048,
-0.02417958341538906,
0.015995962545275688,
0.04359130188822746,
0.06766848266124725,
-0.00025800522416830063,
-0.01570255495607853,
0.01939273811876774,
-0.07969491183757782,
3.412139043542532e-33,
0.024773849174380302,
0.054675810039043427,
0.025366999208927155,
0.0428980253636837,
-0.06721410900354385,
0.06433311104774475,
-0.06909745186567307,
0.047255028039216995,
-0.0656752958893776,
-0.0376359224319458,
-0.06705176830291748,
-0.040466561913490295,
0.05279552564024925,
0.052676860243082047,
0.06623391062021255,
-0.029207948595285416,
0.06703159958124161,
0.05430154129862785,
0.02435762621462345,
0.0004828257078770548,
0.0003387311298865825,
0.0021956288255751133,
-0.055080875754356384,
-0.10398060828447342,
-0.018473321571946144,
0.06257405132055283,
0.08711400628089905,
-0.03376917913556099,
-0.016040178015828133,
-0.002226340351626277,
0.004030176904052496,
-0.0020545567385852337,
-0.05455506592988968,
0.0820612907409668,
-0.013852926902472973,
-0.0821680799126625,
-0.0777377113699913,
0.04160408675670624,
-0.1197916567325592,
0.012895713560283184,
0.08395203948020935,
0.04234961047768593,
-0.016221532598137856,
-0.03351418673992157,
0.08725184947252274,
-0.0018949115183204412,
0.11728769540786743,
-0.05783095583319664,
0.004751313477754593,
0.06365534663200378,
0.04287641495466232,
0.02928302437067032,
0.01223013736307621,
-0.04138487949967384,
-0.01255566906183958,
0.009751785546541214,
0.01676122099161148,
-0.002854290883988142,
-0.03280844911932945,
0.10788998752832413,
0.05369369685649872,
0.023612190037965775,
0.050822578370571136,
-0.030200356617569923,
-0.017719535157084465,
0.07654937356710434,
-0.03478752076625824,
0.021233364939689636,
0.011894980445504189,
0.0214335098862648,
-0.011871309950947762,
-0.03795982897281647,
0.13409262895584106,
-0.022384153679013252,
-0.014392760582268238,
-0.057683344930410385,
0.0827648788690567,
0.03461071476340294,
0.013987291604280472,
-0.047308798879384995,
-0.03906448930501938,
-0.021737465634942055,
0.06344186514616013,
-0.04970116913318634,
-0.06455525010824203,
-0.017870349809527397,
-0.0031570899300277233,
-0.016161389648914337,
-0.0744428038597107,
-0.052448395639657974,
0.0700862854719162,
-0.019401956349611282,
-0.058437131345272064,
-0.0005828649154864252,
-0.0934860035777092,
-4.242292623218417e-33,
0.012085366062819958,
-0.002239818451926112,
0.005293161608278751,
-0.02987818978726864,
0.03540758043527603,
-0.011790298856794834,
-0.004149647895246744,
0.020913975313305855,
-0.0863240510225296,
-0.10010384768247604,
0.10815519094467163,
0.014846323989331722,
0.06570944935083389,
-0.029955605044960976,
0.1067708283662796,
-0.045371122658252716,
0.01663714088499546,
0.037051863968372345,
-0.05476588010787964,
0.0016475255833938718,
0.12380120158195496,
0.024717306718230247,
-0.038808438926935196,
-0.058506131172180176,
-0.014012978412210941,
0.005323546007275581,
0.008110103197395802,
0.01028661709278822,
-0.03002864308655262,
0.055316511541604996,
-0.04935363680124283,
-0.015074332244694233,
-0.006511906627565622,
0.04563014209270477,
-0.026283303275704384,
0.01001269556581974,
-0.04273814707994461,
0.0027444087900221348,
-0.046461787074804306,
0.02001267485320568,
-0.06052331253886223,
0.0639609545469284,
-0.07156118005514145,
0.07151920348405838,
0.06695118546485901,
0.005754115991294384,
0.07232636958360672,
0.09920749068260193,
0.06134689971804619,
0.07719486206769943,
-0.07035891711711884,
-0.11574991792440414,
0.03610801324248314,
0.05749010667204857,
-0.02814982831478119,
-0.06311644613742828,
-0.026406724005937576,
-0.01767905242741108,
0.05616367980837822,
-0.012806222774088383,
0.02714213915169239,
0.009049413725733757,
0.04434138163924217,
-0.004096053075045347,
0.0437861829996109,
-0.06327131390571594,
0.006034362129867077,
-0.04244866222143173,
-0.04442881792783737,
0.013507287949323654,
-0.0029907061252743006,
-0.02221575938165188,
-0.0693744644522667,
0.026283035054802895,
0.08329292386770248,
0.09268592298030853,
0.056927986443042755,
-0.04870271310210228,
-0.015595835633575916,
-0.01477883756160736,
-0.14783114194869995,
0.04413539171218872,
0.02740694023668766,
0.0199317317456007,
0.055839359760284424,
-0.03459791839122772,
-0.020946061238646507,
-0.052206721156835556,
0.01999814249575138,
-0.03441958501935005,
-0.04242484271526337,
0.060353003442287445,
-0.006916307378560305,
0.04848999157547951,
0.06858854740858078,
-5.590311502601253e-8,
0.07408235967159271,
0.0022162068635225296,
-0.07783650606870651,
0.03754587098956108,
0.07788397371768951,
-0.040067803114652634,
-0.056978046894073486,
-0.03679387643933296,
-0.027347376570105553,
0.0310381967574358,
-0.03702797368168831,
-0.06041676923632622,
-0.043422285467386246,
-0.09395720064640045,
-0.00362299382686615,
-0.04284711182117462,
0.00030724197858944535,
-0.08938265591859818,
-0.07159189134836197,
0.11848842352628708,
0.0057971058413386345,
0.0215118620544672,
0.01201312430202961,
-0.05132346972823143,
0.004269604571163654,
-0.03999335318803787,
-0.043269190937280655,
0.012947206385433674,
-0.008925882168114185,
-0.02565387636423111,
-0.0006569690303876996,
0.04277683421969414,
-0.061224017292261124,
-0.039918795228004456,
-0.02778780646622181,
0.018920840695500374,
-0.045641910284757614,
0.11530543863773346,
0.04443895071744919,
0.09461516886949539,
0.028082404285669327,
-0.012997730635106564,
0.0010149303125217557,
0.011035163886845112,
-0.011938067153096199,
0.07539577782154083,
-0.1431998908519745,
-0.030685391277074814,
-0.0005100109265185893,
0.02000066637992859,
-0.03063572570681572,
0.03776094317436218,
-0.014809856191277504,
-0.041178446263074875,
-0.04395613446831703,
-0.027992846444249153,
-0.05464046448469162,
-0.015241885557770729,
-0.00596597557887435,
0.05788717791438103,
0.11907482147216797,
-0.03700888156890869,
-0.03453580662608147,
-0.026000970974564552
] | 14,338 |
14,341 |
Swift J011511.0-725611: S-CUBED detection of a possible Be/WD Binary in the SMC
|
J. A. Kennea (Penn State), M. J. Coe (Southampton), P. A. Evans (Leicester), L. J. Townsend, Francois Van Wyk (SAAO) and A. Udalski (Warsaw).
|
We report the discovery of a new X-ray transient, Swift J011511.0-725611, in the Small Magellanic Cloud by the Swift SMC Survey, S-CUBED. S-CUBED is a weekly shallow X-ray and UV survey of the optical extent of the SMC utilizing the X-ray telescope and UV/Optical Telescope onboard NASA's Neil Gehrels Swift Explorer (e.g. Kennea et al. 2018).
S-CUBED has been performing weekly scans of the SMC since June 2016, however Swift J011511.0-725611 was first detected on December 29th, 2020. No previous detection of this point source has been reported. Initial brightness was found to be 0.05 (+0.07/-0.03) count/s in the short S-CUBED exposure, rising to 0.15(+0.10/-0.07) count/s and 0.19(+0.08/-0.06) count/s on Jan 5 2021 and Jan 12 2021 respectively. Target of Opportunity observations were requested, and observations between 2-4 ks were taken between Jan 13-17 2021. TOO observations show some evidence of short term variability, but no further brightening.
Utilizing these deeper target-of-opportunity observation of the new transient, we derived an accurate localization of the source, RA/Dec(J2000) = 18.79563, -72.93624, which is equivalent to RA(J2000) = 01h 15m 10.95s, Dec(J2000) = -72d 56m 10.5s, with an error radius of 1.6 arc-seconds (90% confidence).
We note that this position is consistent with the location of a known star, [M2002] SMC 75919. This optical counterpart was observed at the SAAO 1.9m telescope on 18 January 2021 and the spectrum confirms the characteristics reported by Golden-Marx et al (2016), namely an early type star with infilled Balmer lines. Golden-Marx (2016) proposes a spectral type O9IIIe and Lamb et al (2013) propose O8-O9Ve.
The X-ray spectrum of this new transient is soft, in contrast to the hard spectra seen in most Be/X-ray binaries in the SMC, strongly implying a white dwarf compact object instead of a neutron star. Assuming a standard SMC absorption of 6 x 10^20 cm^-2, the spectrum is well fit by a black-body model with kT = 128 +/- 5 eV, although we note that the fit is significantly improved by the inclusion of a 0.87 keV edge, consistent with O VIII (Hydrogen like Oxygen).
Analysis of the OGLE III and IV data of the optical counterpart reveals a strong modulation at a period of 17.39d. We propose that this is the binary period of the system.
We note the similarity of this source to Swift J004427.3-734801, another proposed Be/WD system in the SMC discovered by S-CUBE (e.g. Coe et al., MNRAS, 2020, 497, 50). That source has a similarly soft X-ray spectrum and early type companion star (B0 IV-V; Coe et al., ATEL #14161). It also has a similar binary period of 21.5d.
We therefore suggest Swift J011511.0-725611 is also a Be/WD system, with very similar characteristics to Swift J004427.3-734801.
Observations with Swift and S-CUBED will continue, after a short period of constraint.
|
2021-01-21 23:43:00
|
optical,x-ray,binary,neutron star,star,transient
|
2021-01-21
|
23:43:00
| 2,861 |
[
-0.06891133636236191,
-0.06582193821668625,
0.0033800515811890364,
0.06701134145259857,
0.1336643099784851,
-0.06498551368713379,
-0.009068918414413929,
0.016498878598213196,
-0.04576421529054642,
-0.01630464382469654,
0.03424438461661339,
-0.016101397573947906,
0.014510232023894787,
0.05248526856303215,
-0.018287306651473045,
-0.005772677715867758,
0.02098851278424263,
-0.08565595746040344,
-0.005612910725176334,
0.05032229796051979,
-0.01602885127067566,
0.07231677323579788,
-0.013941030018031597,
0.016425631940364838,
0.04911369830369949,
-0.023000746965408325,
-0.03522961959242821,
-0.12537486851215363,
-0.03620428964495659,
0.006305891089141369,
-0.006618402432650328,
0.02097981609404087,
0.012758299708366394,
0.05721026659011841,
0.0876920074224472,
-0.032559361308813095,
0.0883282870054245,
-0.08243419229984283,
0.018258290365338326,
-0.056516699492931366,
-0.08181280642747879,
-0.07326977699995041,
0.00794269610196352,
0.01444254070520401,
-0.056979138404130936,
0.020299628376960754,
-0.017028486356139183,
-0.0391511470079422,
-0.07235606759786606,
0.08330175280570984,
-0.005623628851026297,
-0.06924163550138474,
-0.004105263855308294,
-0.02454056590795517,
0.11441157758235931,
0.048852089792490005,
-0.1011294424533844,
-0.06853452324867249,
0.07464185357093811,
0.0177477840334177,
0.020321795716881752,
-0.005175709258764982,
0.022623855620622635,
0.002669016132131219,
0.059215471148490906,
-0.007530920207500458,
-0.03139327093958855,
-0.1011582538485527,
0.0631331354379654,
-0.027130549773573875,
0.081374391913414,
0.02734285220503807,
0.019191699102520943,
-0.035120829939842224,
-0.013836863450706005,
0.019108586013317108,
0.07028921693563461,
-0.007203996181488037,
0.04114677384495735,
-0.01095840334892273,
-0.020936766639351845,
0.0882667750120163,
-0.07433470338582993,
0.04948082193732262,
-0.017179016023874283,
-0.010574627667665482,
-0.03779138997197151,
0.05133388563990593,
-0.05265413969755173,
0.13037419319152832,
0.07210423797369003,
-0.0071525112725794315,
-0.06692183762788773,
-0.058254584670066833,
0.038865793496370316,
-0.018444295972585678,
0.08632251620292664,
-0.006893334910273552,
0.018861155956983566,
0.024209415540099144,
0.022733746096491814,
0.005405744072049856,
-0.01084485836327076,
0.057093072682619095,
-0.008166305720806122,
-0.05361916124820709,
0.03613491728901863,
-0.022238366305828094,
-0.08411825448274612,
-0.00008454921044176444,
0.07462505251169205,
-0.02938256971538067,
-0.0279698446393013,
-0.05976064130663872,
-0.007665109355002642,
-0.046573884785175323,
0.0234514269977808,
0.06841317564249039,
-0.0876464694738388,
-0.06445654481649399,
-0.018730007112026215,
-0.02473081834614277,
0.01987418904900551,
0.02615085430443287,
0.01055874302983284,
0.004613090772181749,
-0.024198438972234726,
1.8788835380604585e-33,
0.01631884276866913,
0.01339402049779892,
-0.03577635437250137,
0.0009066409547813237,
0.020260771736502647,
-0.01323393452912569,
0.05032071843743324,
0.10962644964456558,
-0.005909579806029797,
0.04145326092839241,
-0.08686861395835876,
0.06460367143154144,
-0.020991109311580658,
-0.09639593958854675,
-0.06639982759952545,
-0.06827940046787262,
0.05601200833916664,
0.03007894940674305,
-0.1304561346769333,
0.024342358112335205,
-0.005630712956190109,
-0.02324162982404232,
0.03783484175801277,
-0.010505779646337032,
-0.009755081497132778,
0.042321186512708664,
-0.013071868568658829,
-0.03070703335106373,
0.008131134323775768,
0.060414161533117294,
-0.005064285360276699,
0.02359386719763279,
-0.006072611548006535,
0.03515983372926712,
0.007543819956481457,
0.03160513564944267,
0.021611489355564117,
-0.023297009989619255,
-0.03316546231508255,
0.03790227696299553,
0.012873838655650616,
0.07593560218811035,
-0.014217990450561047,
-0.00988449715077877,
-0.011649209074676037,
0.043864935636520386,
-0.04020890220999718,
0.007659323513507843,
-0.008614880032837391,
-0.021268170326948166,
-0.03706461563706398,
-0.04462209716439247,
-0.11855959892272949,
-0.0451444610953331,
0.08233805000782013,
0.04536503925919533,
0.03720054030418396,
-0.029208507388830185,
-0.015076659619808197,
0.04537886381149292,
0.002847742522135377,
-0.01830078288912773,
0.005368583370000124,
0.03382114693522453,
-0.005874292925000191,
0.0699707642197609,
-0.05297764763236046,
0.007405873853713274,
-0.048660602420568466,
0.014003343880176544,
-0.03652995079755783,
0.04503161087632179,
0.020208632573485374,
-0.09525307267904282,
0.10582104325294495,
-0.08644353598356247,
-0.011162787675857544,
0.07435856014490128,
0.043017417192459106,
0.011624000035226345,
-0.04420532286167145,
-0.006091772578656673,
0.06645286083221436,
-0.02250063605606556,
-0.0915626659989357,
-0.006325181107968092,
-0.06397032737731934,
0.030372759327292442,
-0.023470044136047363,
0.04686344787478447,
-0.018298672512173653,
-0.043437715619802475,
0.037616029381752014,
-0.05771989747881889,
-0.09527763724327087,
-2.0809660779881797e-33,
-0.004935026168823242,
-0.044377945363521576,
-0.0005614273250102997,
0.021725058555603027,
-0.07618396729230881,
-0.019202783703804016,
0.009316766634583473,
0.10467304289340973,
-0.05041574314236641,
-0.03974767401814461,
0.012607724405825138,
0.06695325672626495,
-0.07278624176979065,
-0.04256487637758255,
-0.010859325528144836,
0.01983371190726757,
0.04814757779240608,
-0.059082042425870895,
-0.0708724781870842,
0.04155275598168373,
-0.006878978572785854,
-0.01560275536030531,
0.04792415350675583,
-0.05847667157649994,
-0.018978305160999298,
0.0794520229101181,
0.08200685679912567,
0.0204775370657444,
0.015334194526076317,
-0.01856525056064129,
-0.0457611083984375,
0.030077721923589706,
0.01275455392897129,
-0.0034763093572109938,
-0.006820489652454853,
-0.03699192404747009,
0.0867382138967514,
0.0027973654214292765,
-0.08557194471359253,
-0.03440162539482117,
0.05216073617339134,
0.08365646749734879,
-0.030828144401311874,
0.059712961316108704,
-0.006558162625879049,
0.04042023420333862,
0.028352530673146248,
0.09943452477455139,
0.042324844747781754,
-0.032594840973615646,
0.017217427492141724,
-0.07417270541191101,
-0.0467800535261631,
0.09889022260904312,
-0.038637205958366394,
0.060559920966625214,
0.008021675981581211,
0.02204541303217411,
0.04672364518046379,
0.008752845227718353,
0.022385891526937485,
-0.019625598564743996,
0.005267392378300428,
-0.039439573884010315,
0.025082679465413094,
-0.04826141148805618,
0.024586278945207596,
0.09627793729305267,
0.026067905128002167,
-0.015213483944535255,
0.07007177919149399,
-0.11155387759208679,
-0.04945410043001175,
-0.0717606171965599,
-0.02078099735081196,
0.013829448260366917,
-0.04330624267458916,
-0.05526401847600937,
0.06301426142454147,
0.025013521313667297,
0.00698917405679822,
0.042037416249513626,
0.0025683881249278784,
0.02446144074201584,
0.14134782552719116,
0.008465253747999668,
0.0921645313501358,
-0.016260528936982155,
-0.06320104748010635,
-0.019749285653233528,
-0.10390429198741913,
0.03674549236893654,
-0.04268576577305794,
0.05477631092071533,
0.05632957071065903,
-5.262107549697248e-8,
-0.07143261283636093,
0.06464453041553497,
-0.05076710879802704,
0.04380115494132042,
0.0739106610417366,
-0.01906866766512394,
-0.018068362027406693,
0.07853182405233383,
0.0565788596868515,
-0.024061691015958786,
0.009880607016384602,
-0.05401397496461868,
-0.0077222497202456,
-0.05089937523007393,
0.06302496045827866,
-0.03530506789684296,
0.003361921291798353,
-0.04769996553659439,
-0.04227927327156067,
0.043733950704336166,
-0.006469932850450277,
0.02384449914097786,
0.06426594406366348,
-0.08235970884561539,
-0.07316992431879044,
0.0064494735561311245,
-0.011488017626106739,
0.06448257714509964,
0.06746003776788712,
-0.07450032979249954,
-0.10287517309188843,
0.006943957414478064,
-0.01959322579205036,
-0.0051735476590693,
0.02149108238518238,
0.038959208875894547,
-0.07879956066608429,
-0.06334332376718521,
0.12524625658988953,
0.06743524223566055,
-0.043950192630290985,
0.016416631639003754,
-0.009631935507059097,
0.038353946059942245,
-0.062493447214365005,
0.006989690940827131,
-0.006502361502498388,
-0.05554909259080887,
-0.06255152076482773,
0.061321940273046494,
-0.004628325812518597,
-0.04622725024819374,
-0.0024537802673876286,
-0.010988648980855942,
-0.00382207497023046,
0.04218227043747902,
0.08825481683015823,
-0.0866963192820549,
-0.11686043441295624,
0.06952246278524399,
0.04615496098995209,
-0.07034193724393845,
-0.09950900822877884,
0.03408932313323021
] | 14,339 |
14,342 |
NICER follow-up observations of the flaring blazar BL Lacertae
|
Filippo D'Ammando (INAF-IRA Bologna)
|
Following the recent optical and gamma-ray flaring activity of the blazar BL Lacertae (ATel #14318, #14328, #14330, #14334), the source has been observed by NICER for a DDT request (PI: D'Ammando) between 2021 January 18 20:22 UTC and January 22 11:13 UTC for an effective time of 61.9 ks.
The source is detected above the background across the energy interval 0.3-5.0 keV in the quick look data, with an average count rate of 22.2 counts/s, a factor of 6 higher than the average count rate observed by NICER on 2020 October 11-12 during a previous flaring activity of BL Lacertae (ATel #14096). Variations of the count rate up to a factor of 7 has been observed across the observation, with possible short flares.
Preliminary analysis shows that the NICER spectrum collected over the entire period in the 0.3-5 keV energy range is described by a power-law with a photon index of 2.56 +/- 0.01.
Further NICER observations are planned in the next days and multi-wavelength observations are encouraged.
We thank the NICER PI, Keith Gendreau, and the operation team for the rapid approval and execution of the DDT request. NICER is a 0.2-12 keV X-ray telescope operating on the International Space Station. The NICER mission and portions of the NICER science team activities are funded by NASA.
|
2021-01-23 01:52:00
|
optical,x-ray,gamma ray,agn,black hole,blazar,quasar
|
2021-01-23
|
01:52:00
| 1,295 |
[
-0.09598665684461594,
-0.05443785339593887,
0.028139900416135788,
0.108205646276474,
-0.05342976376414299,
-0.02128566987812519,
-0.010908547788858414,
0.019738614559173584,
0.07213404774665833,
-0.022719277068972588,
0.01168859750032425,
-0.026524407789111137,
-0.03324316069483757,
-0.0032205956522375345,
0.030865104869008064,
0.05559362471103668,
0.025108056142926216,
-0.07471780478954315,
-0.09385054558515549,
0.003619738155975938,
0.03091348335146904,
0.0015099167358130217,
0.034937597811222076,
0.07627822458744049,
-0.028464213013648987,
0.007076522335410118,
-0.019711634144186974,
0.02198897674679756,
0.012588998302817345,
-0.075518399477005,
-0.03864654526114464,
0.05199497938156128,
-0.04858051612973213,
-0.009421726688742638,
0.07277335226535797,
-0.03637309372425079,
0.006621945649385452,
0.009399829432368279,
-0.044857800006866455,
0.05650006979703903,
0.009865392930805683,
-0.09589143097400665,
0.04762618988752365,
0.01719215139746666,
-0.050101153552532196,
0.0008240078459493816,
-0.029026411473751068,
-0.04036468639969826,
-0.05767392739653587,
-0.008883814327418804,
-0.029772784560918808,
0.030577605590224266,
0.019683141261339188,
-0.00017292618576902896,
0.0681823119521141,
0.07132377475500107,
-0.039853665977716446,
-0.04258977249264717,
0.12776271998882294,
0.0047544497065246105,
0.032158102840185165,
0.04071924835443497,
-0.13217653334140778,
-0.026519326493144035,
-0.03533736988902092,
-0.0066908178851008415,
0.04927763342857361,
-0.06525325030088425,
0.05374757945537567,
-0.037813786417245865,
0.039306022226810455,
-0.05723659694194794,
-0.034008707851171494,
-0.017022933810949326,
-0.018611444160342216,
-0.0064225997775793076,
0.06065535172820091,
-0.0445382259786129,
0.024873586371541023,
-0.0773572325706482,
0.09814015030860901,
-0.041559040546417236,
0.019246399402618408,
0.03126101195812225,
0.01768520101904869,
0.007455511949956417,
0.04975120723247528,
0.05675595626235008,
0.011887320317327976,
0.04646177217364311,
0.030742701143026352,
0.0240388922393322,
-0.07070785015821457,
-0.046736255288124084,
-0.007102449890226126,
0.08691703528165817,
0.030007364228367805,
-0.0026024291291832924,
0.024216245859861374,
0.049474798142910004,
0.018035540357232094,
-0.07095787674188614,
-0.10514616966247559,
0.12989550828933716,
-0.10282372683286667,
-0.02204461395740509,
0.011725871823728085,
0.062033213675022125,
0.01975926198065281,
0.0021495898254215717,
0.08568089455366135,
0.02260890044271946,
-0.008082094602286816,
-0.030186882242560387,
-0.034715887159109116,
-0.016798660159111023,
-0.025125449523329735,
0.0027729817666113377,
0.013909856788814068,
-0.01941864937543869,
0.048614732921123505,
-0.005451689474284649,
0.07046855241060257,
0.07890335470438004,
0.03343024104833603,
0.00848291628062725,
-0.05158300697803497,
5.209074645974346e-33,
0.13153532147407532,
0.011681045405566692,
-0.008571996353566647,
-0.02223707176744938,
-0.05832546204328537,
-0.014688719063997269,
-0.09131091088056564,
0.01884610578417778,
-0.05721147358417511,
-0.032254014164209366,
-0.05993051454424858,
0.000735647336114198,
0.03094903752207756,
-0.002519347006455064,
-0.02631022408604622,
-0.020718658342957497,
0.07669370621442795,
0.01574806682765484,
-0.09031165391206741,
0.008501353673636913,
-0.00498234573751688,
0.007358591537922621,
-0.008948707953095436,
-0.031546398997306824,
0.025705009698867798,
0.07978900521993637,
0.004322519525885582,
0.015293573029339314,
-0.016624195501208305,
0.03405565023422241,
0.04870940372347832,
0.05142776668071747,
0.002688385546207428,
0.05487102270126343,
-0.043483007699251175,
-0.0306490957736969,
-0.018661316484212875,
0.017133381217718124,
-0.05647583678364754,
-0.005976479966193438,
0.0620056614279747,
0.06304925680160522,
-0.05539245530962944,
-0.002958345925435424,
0.04606030508875847,
-0.011099085211753845,
0.02736295573413372,
-0.003909975290298462,
-0.016835659742355347,
0.05059593915939331,
-0.001408191048540175,
-0.0013605129206553102,
-0.02264014258980751,
0.03533145785331726,
0.0413503497838974,
0.1117766797542572,
0.00643605412915349,
-0.013397048227488995,
0.08168362826108932,
0.0972801148891449,
0.058261413127183914,
0.025679079815745354,
0.06328904628753662,
-0.03394710272550583,
0.0550738126039505,
-0.019200783222913742,
-0.0541769377887249,
0.04628886282444,
-0.05211297795176506,
0.000672958034556359,
0.016164803877472878,
0.08210054785013199,
0.08226873725652695,
-0.08976998925209045,
0.048433564603328705,
-0.03084816411137581,
-0.004263625014573336,
0.08809120953083038,
-0.07828260213136673,
0.04030359536409378,
-0.08037148416042328,
-0.07299815118312836,
0.1693914234638214,
-0.013221701607108116,
-0.09138673543930054,
0.02417880855500698,
-0.024123026058077812,
-0.03875540569424629,
-0.03398348018527031,
-0.007656105328351259,
0.02065025269985199,
-0.07392027229070663,
-0.01828727498650551,
-0.04361090064048767,
-0.10984943062067032,
-5.10428336536037e-33,
0.02975761704146862,
0.01852792128920555,
-0.004760411102324724,
0.05932343751192093,
-0.0008585354662500322,
-0.017504915595054626,
0.06862634420394897,
0.10099969059228897,
0.03029250167310238,
0.006640570238232613,
0.09522414207458496,
0.06415457278490067,
-0.0400325171649456,
-0.08584020286798477,
0.04620140418410301,
-0.029044797644019127,
0.007859276607632637,
-0.022926729172468185,
-0.05328329652547836,
0.06508658081293106,
-0.02545308694243431,
0.005158228799700737,
0.003556301584467292,
-0.0027379209641367197,
0.03335015848278999,
0.04753875359892845,
0.060288406908512115,
-0.06927809119224548,
-0.0726475790143013,
-0.060448069125413895,
0.008103543892502785,
0.0524451918900013,
-0.026759924367070198,
-0.013901516795158386,
-0.00974323321133852,
0.087360680103302,
0.003520546481013298,
-0.03356635943055153,
-0.05639854446053505,
0.029364613816142082,
0.024615028873085976,
0.14848646521568298,
-0.02025427483022213,
-0.04500703141093254,
-0.021051449701189995,
0.023370826616883278,
0.02333536557853222,
0.025482874363660812,
0.054543670266866684,
-0.10488361865282059,
0.03552096709609032,
-0.000944482337217778,
-0.01350712962448597,
0.11606111377477646,
-0.047439247369766235,
-0.0517001673579216,
0.0049558705650269985,
0.015015809796750546,
-0.0422506183385849,
0.05230987071990967,
-0.009545715525746346,
-0.07760218530893326,
0.020531119778752327,
-0.04787113144993782,
0.05736593157052994,
0.012968589551746845,
-0.023127427324652672,
-0.004355141893029213,
0.030287595465779305,
-0.017012083902955055,
0.04186445474624634,
-0.12782137095928192,
-0.07040505856275558,
0.03187651187181473,
0.004657582379877567,
-0.04305745288729668,
0.0034049013629555702,
-0.09230945259332657,
0.01408008299767971,
0.04469699040055275,
-0.08177407085895538,
-0.019350988790392876,
-0.0770610049366951,
-0.08213373273611069,
0.04835612699389458,
-0.05101548135280609,
0.0023532698396593332,
-0.09958411753177643,
-0.022537505254149437,
-0.04581122100353241,
-0.040548793971538544,
-0.03209541365504265,
-0.02738652378320694,
0.018151726573705673,
0.09813889116048813,
-5.7582518309118313e-8,
0.06845010071992874,
0.05061391741037369,
-0.06121959537267685,
0.03472089767456055,
0.0910363495349884,
-0.06528056412935257,
-0.005121487658470869,
0.035037100315093994,
0.03434252738952637,
-0.011921808123588562,
0.029090657830238342,
-0.03380167856812477,
0.03316358104348183,
-0.010265368968248367,
0.02213926613330841,
0.028334632515907288,
-0.02407601848244667,
-0.08491911739110947,
-0.04257366433739662,
-0.00434446707367897,
0.028453538194298744,
-0.003711167024448514,
0.0009233752498403192,
-0.07601010799407959,
-0.038126830011606216,
0.030151905491948128,
-0.02221089042723179,
0.06154584512114525,
0.09294124692678452,
-0.05617133155465126,
0.002311926567927003,
-0.0075320410542190075,
0.02666187472641468,
-0.0300547294318676,
-0.012326028198003769,
0.029821345582604408,
-0.08390926569700241,
0.03210671991109848,
0.026575634256005287,
0.09296778589487076,
-0.02028518356382847,
-0.10597837716341019,
-0.004651770927011967,
0.05203911289572716,
-0.0748877003788948,
-0.0017095358343794942,
-0.05872161686420441,
-0.10370045155286789,
-0.007132860831916332,
0.046874307096004486,
0.02637728862464428,
-0.011583573184907436,
-0.008454089984297752,
-0.03691542148590088,
-0.0783049613237381,
-0.022201422601938248,
0.05367178097367287,
-0.02996070869266987,
-0.0205920971930027,
-0.03295490890741348,
0.10019417107105255,
-0.10155884176492691,
-0.09190071374177933,
0.005085415206849575
] | 14,340 |
14,343 |
Optical follow-up observations of the flaring blazar BL Lacertae
|
Alok C. Gupta, V. Dhiman, P. Kushwaha, S. Kishore, H. Gaur, T. Tripathi (Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital - 263001, India)
|
Since October 2020 to till date, we are observing the blazar BL Lacertae (RA: 22 02 43.29 Dec: +42 16 39.98 J2000.0) at redshift z = 0.069 in optical BVRI bands using 1.04m ST (Sumpurnanand Telescope) and 1.3m DFOT (Devasthal Fast Optical Telescope) of ARIES, Nainital, India. The observations are carried out for our independent projects as well as a part of WEBT (whole earth blazar telescope) collaboration. We have carried out observations in many nights as 1-2 sets in BVI bands and continuous monitoring in R band for a few hours which provided a few thousands of image frames of BL Lacertae. As reported to be the brightest state of the source obtained by WEBT collaboration on 2021 January 17.87(UT) with R = 12.45 ATel #14328. Here we are reporting the randomly selected R band observations in October - December 2020, and January 15, 16, 20, 2021. The magnitude of BL Lacerate are reported as follows: Civil Date (UT) Mag+-error 2020 Oct. 27(12:45) 12.953+-0.004, 2020 Nov. 27(12:33) 13.053+-0.002, 2020 Dec. 11(13:19) 12.522+-0.002, 2021 Jan. 15(13:01) 11.998+-0.002, 2021 Jan. 16(12:58) 11.954+-0.002, and 2021 Jan. 20(12:57) 12.006+-0.005 These measurements were obtained using the photometric standard stars made available by LSW, Heidelberg, Germany (https://www.lsw.uniheidelberg.de/projects/extragalactic/charts/2200+420.html). Any inquiry on these observations can be addressed to Alok C. Gupta ([email protected]). We will continue our monitoring of the source in the following nights. A brief description of the instrumental setup used at ARIES, India for the presented observations is given at the official webpage of the Institute (see link below). https://www.aries.res.in/facilities/astronomical-telescopes
|
2021-01-23 16:05:00
|
optical,blazar,star
|
2021-01-23
|
16:05:00
| 1,732 |
[
-0.07569316029548645,
-0.0571674183011055,
-0.04449081048369408,
0.04460680112242699,
-0.05327698960900307,
-0.012305340729653835,
-0.02441299520432949,
0.0219270046800375,
0.02279195748269558,
-0.034037064760923386,
-0.06955526769161224,
-0.05567541345953941,
-0.03739047795534134,
0.002311018295586109,
0.027118870988488197,
0.0641556903719902,
-0.021504933014512062,
-0.1024702712893486,
-0.07511790841817856,
-0.0381041057407856,
0.013065134175121784,
0.01621839962899685,
0.015469742938876152,
0.0635780543088913,
-0.02697181887924671,
-0.0075994329527020454,
-0.03283121436834335,
-0.044294241815805435,
0.021253390237689018,
-0.0503549762070179,
-0.07746001332998276,
0.03413635864853859,
-0.029760612174868584,
-0.00041782273910939693,
-0.004615462385118008,
-0.0408257357776165,
0.013899501413106918,
-0.05260138213634491,
-0.0194521676748991,
0.02348952554166317,
0.030402036383748055,
-0.0145978182554245,
-0.02064981497824192,
0.00632248492911458,
-0.038642678409814835,
-0.062079478055238724,
-0.010253111831843853,
0.0058594271540641785,
-0.06331584602594376,
0.028193620964884758,
-0.07995970547199249,
0.05734832212328911,
-0.04061097279191017,
-0.002356389071792364,
0.07753672450780869,
0.05629272013902664,
-0.0028448752127587795,
-0.019206037744879723,
0.11323445290327072,
-0.0011432425817474723,
0.10346744954586029,
0.0539061576128006,
-0.08657915890216827,
-0.02488635666668415,
-0.05525626242160797,
0.023224012926220894,
0.0054972246289253235,
-0.0968906506896019,
0.06961074471473694,
-0.08266597241163254,
-0.015134146437048912,
-0.05067455768585205,
-0.006817304529249668,
0.0004257741675246507,
-0.04755624756217003,
0.017526086419820786,
0.08113447576761246,
-0.022082393988966942,
-0.03565995767712593,
-0.026402948424220085,
0.06812015175819397,
-0.044571828097105026,
0.056244395673274994,
0.08538713306188583,
-0.016421085223555565,
0.014961821027100086,
-0.010197957046329975,
0.008789784274995327,
-0.04054619371891022,
-0.017233222723007202,
0.10584110766649246,
-0.015015760436654091,
-0.08074293285608292,
-0.05788733437657356,
-0.043764472007751465,
0.02138577215373516,
0.05373799800872803,
-0.024370329454541206,
0.019495215266942978,
0.05243409052491188,
-0.0011581461876630783,
-0.09053771942853928,
-0.06338921934366226,
0.12823347747325897,
-0.1425771415233612,
0.0028192908503115177,
0.06500992923974991,
-0.010876212269067764,
0.07819563150405884,
-0.04129327833652496,
0.05772329494357109,
0.005807528737932444,
0.01105994451791048,
-0.03598655387759209,
-0.09848979860544205,
0.026497595012187958,
-0.03975292295217514,
0.06973163038492203,
0.01495563518255949,
-0.010288603603839874,
0.02219110168516636,
0.04306419938802719,
0.0715731531381607,
-0.0008999403798952699,
0.05038405954837799,
-0.05500200018286705,
-0.04878959804773331,
8.31359269537844e-33,
0.11311198025941849,
0.04597384110093117,
0.00828645657747984,
-0.00244669197127223,
-0.07847689092159271,
0.030982917174696922,
-0.061558060348033905,
0.05754072964191437,
-0.06063183397054672,
-0.07223190367221832,
-0.0034636836498975754,
-0.004116246942430735,
-0.0023717901203781366,
-0.07069911062717438,
-0.0030763025861233473,
0.014421606436371803,
0.053622402250766754,
0.020577332004904747,
-0.11256670206785202,
0.08155563473701477,
0.0354854017496109,
0.03155871480703354,
-0.011080565862357616,
-0.03751854971051216,
-0.010126179084181786,
0.04430089518427849,
0.07449755817651749,
0.030537040904164314,
-0.0011217215796932578,
0.025636663660407066,
0.08313175290822983,
0.01744372583925724,
-0.04614941403269768,
0.042349230498075485,
-0.051390498876571655,
-0.08114587515592575,
-0.04967774450778961,
0.004551216959953308,
-0.053483910858631134,
-0.005893290974199772,
0.06796126067638397,
0.04215430095791817,
-0.07008375972509384,
0.03071645274758339,
0.02599043771624565,
-0.00917467474937439,
-0.00681715551763773,
0.008387140929698944,
0.03187638521194458,
0.06700900197029114,
-0.03791080415248871,
0.024357829242944717,
-0.051101867109537125,
0.006305106449872255,
0.012346659786999226,
0.09159643948078156,
0.014665036462247372,
-0.045941781252622604,
0.09205826371908188,
0.07874337583780289,
0.07918605953454971,
-0.05402497202157974,
0.04120843484997749,
-0.037206120789051056,
0.0380571112036705,
0.015611025504767895,
0.01570761576294899,
0.03373611718416214,
-0.03662979230284691,
-0.03660508617758751,
0.010630630888044834,
0.04327182099223137,
0.09432041645050049,
-0.061527319252491,
0.03529813140630722,
-0.04324106127023697,
0.06065749377012253,
0.07484594732522964,
-0.04890455678105354,
-0.00030668091494590044,
-0.08305557817220688,
-0.017750399187207222,
0.14530742168426514,
-0.04061075672507286,
-0.051955074071884155,
-0.011536572128534317,
0.004561362322419882,
-0.040804825723171234,
-0.024911925196647644,
-0.03814379498362541,
0.020318010821938515,
-0.05688082054257393,
-0.028802981600165367,
-0.034575480967760086,
-0.06386023759841919,
-7.496452205508142e-33,
0.0559791624546051,
-0.006324993446469307,
-0.022996898740530014,
-0.008042409084737301,
-0.019256269559264183,
-0.017153719440102577,
0.10826987773180008,
0.073854461312294,
-0.00471889553591609,
0.041291311383247375,
0.12683208286762238,
0.06503335386514664,
-0.050642337650060654,
-0.01886364445090294,
0.020825136452913284,
-0.05012202635407448,
0.09915719926357269,
-0.0643596425652504,
-0.043480195105075836,
0.040278878062963486,
-0.01308713760226965,
0.004078099969774485,
0.008075961843132973,
-0.024088788777589798,
0.03192654624581337,
0.020824961364269257,
0.05067332088947296,
-0.04266786575317383,
-0.11078330129384995,
-0.037447791546583176,
0.0069916280917823315,
0.005303502548485994,
-0.03424188122153282,
-0.02399345673620701,
-0.06433285772800446,
0.08498688042163849,
-0.028542818501591682,
-0.08816824108362198,
-0.02828090265393257,
0.005587136838585138,
-0.0012962804175913334,
0.11034664511680603,
-0.03279494866728783,
-0.050760552287101746,
-0.003846874227747321,
-0.06484750658273697,
-0.037131212651729584,
0.10751371085643768,
0.049208369106054306,
-0.029202667996287346,
0.05580528452992439,
0.015701375901699066,
0.03392403572797775,
0.0030238796025514603,
0.01734737865626812,
-0.002350051188841462,
-0.02183607965707779,
0.039208121597766876,
-0.010154553689062595,
0.07081079483032227,
-0.022388074547052383,
-0.004350403789430857,
0.01607765071094036,
-0.00105797010473907,
0.044768109917640686,
0.04772286117076874,
0.014637865126132965,
0.05097576603293419,
0.060423463582992554,
0.008775322698056698,
0.034624069929122925,
-0.021474773064255714,
-0.0004368512600194663,
0.09171473979949951,
-0.008558575063943863,
-0.008349758572876453,
0.01934555545449257,
-0.0960882306098938,
0.03282643482089043,
0.0033294446766376495,
0.0036705657839775085,
-0.0027348396833986044,
0.03379037231206894,
-0.05307001248002052,
0.057831596583127975,
-0.05631740391254425,
0.030793027952313423,
-0.12105411291122437,
-0.00876116007566452,
-0.028344543650746346,
-0.039413318037986755,
-0.015414467081427574,
-0.02064458839595318,
0.05611635372042656,
0.13522255420684814,
-5.333272312668669e-8,
0.04009152576327324,
0.06437676399946213,
-0.13010632991790771,
0.04856780916452408,
0.05476471409201622,
-0.1441378891468048,
-0.017150379717350006,
0.004343358799815178,
0.029299296438694,
-0.008065850473940372,
-0.002147905994206667,
-0.09209544956684113,
-0.03203049674630165,
0.0068442621268332005,
0.045776065438985825,
0.04607968404889107,
-0.040417175740003586,
-0.10193175077438354,
-0.03882680833339691,
-0.011370440013706684,
0.04503775015473366,
0.009859089739620686,
0.024375976994633675,
-0.06006234884262085,
0.02456308901309967,
-0.0008170405635610223,
-0.0601281002163887,
0.04425915703177452,
0.09148664772510529,
-0.02796407975256443,
0.03453120216727257,
-0.02770407684147358,
0.03518621250987053,
-0.003523155814036727,
0.024231702089309692,
-0.007186912465840578,
-0.09116159379482269,
0.10757371783256531,
0.030245041474699974,
0.09624888747930527,
0.023866698145866394,
-0.07382366061210632,
0.05570827051997185,
0.04298614338040352,
-0.03834851086139679,
-0.0007103694952093065,
-0.05660956725478172,
-0.0619492381811142,
0.027323706075549126,
0.0074533079750835896,
0.02398122102022171,
-0.03410521522164345,
0.040055934339761734,
-0.016980448737740517,
-0.08416660875082016,
-0.005470472387969494,
0.04132519289851189,
0.012471574358642101,
-0.04211173951625824,
0.029781604185700417,
0.035623446106910706,
-0.07968378812074661,
-0.06138293445110321,
0.013911950401961803
] | 14,341 |
14,344 |
Swift/BAT detection of increasing activity from SS Cygni
|
Mangal Hazra (MCC), Sabyasachi Pal (MCC/ICSP), Bikram Bhunia (MCC) and Debasish Saha (MCC)
|
We report the detection of increasing activity from dwarf nova SS Cygni using the Burst Alert Telescope (BAT) on the Neil Gehrels Swift Observatory. The BAT (15-50 keV) recorded highest flux in last 20 months with 0.020±0.005 counts/cm2/sec (90 mCrab) on 59237 (23rd January 2021). Last time the source recorded more than 90 mCrab flux from BAT on 58627 (24th May 2019) with 0.028±0.015 counts/cm2/sec.
SS Cygni did not show significant variation in soft X-ray. We study the present flare of the source using MAXI/GSC. On 59237 (23rd January 2021), the 1 day averaged X-ray flux in 2-20 keV and 4-10 keV were 21±13 mCrab and 34±18 mCrab respectively. The flux of the source at hard X-ray range (15-50 keV, observed by SWIFT/BAT), is comparatively high than flux measured in soft X-ray range (2-20 keV, observed by MAXI). The hardness ratio in MAXI/GSC energy band (2-20 kev/2-4 keV) varies between 2.56-1.79 during 59236-59237 MJD.
Further observations in all wavelengths are encouraged.
|
2021-01-24 23:37:00
|
x-ray,nova,transient,request for observations
|
2021-01-24
|
23:37:00
| 989 |
[
-0.03437390923500061,
-0.05266623944044113,
0.015216827392578125,
0.029420223087072372,
0.08038978278636932,
-0.040011949837207794,
-0.0064852600917220116,
0.04029327630996704,
-0.019204169511795044,
0.041295118629932404,
-0.024449218064546585,
-0.09780582040548325,
0.026170358061790466,
0.022080468013882637,
-0.006466280203312635,
0.00936044566333294,
0.027827316895127296,
-0.07339008897542953,
-0.001586873666383326,
0.06992082297801971,
0.0463375523686409,
0.06207571178674698,
-0.021186186000704765,
0.07309461385011673,
0.0338093563914299,
-0.035788848996162415,
-0.06854285299777985,
-0.07594796270132065,
-0.04560393840074539,
-0.03494756668806076,
-0.04035663604736328,
0.08855541795492172,
-0.007240505889058113,
0.04328359290957451,
0.03527262434363365,
-0.039025600999593735,
0.00915662944316864,
-0.04973265528678894,
-0.014518980868160725,
-0.03443415090441704,
-0.02725355327129364,
-0.05109051614999771,
0.02016030065715313,
-0.020468926057219505,
-0.033048808574676514,
0.041619449853897095,
0.005665175151079893,
-0.08697506785392761,
-0.010989832691848278,
0.0433206781744957,
0.014341498725116253,
-0.023870890960097313,
-0.010739527642726898,
0.046545762568712234,
0.10857632756233215,
0.059473175555467606,
-0.1099843755364418,
-0.09846440702676773,
0.08316366374492645,
-0.02171371690928936,
-0.006055937148630619,
0.009660975076258183,
-0.04026876017451286,
-0.04910599812865257,
0.015927216038107872,
-0.06601987779140472,
-0.05260206013917923,
-0.032312337309122086,
0.05977588891983032,
-0.05000990256667137,
0.051043156534433365,
0.0274505577981472,
-0.045166775584220886,
-0.06997625529766083,
-0.06983239948749542,
0.03555195406079292,
0.16339534521102905,
-0.05116579681634903,
0.04208457097411156,
-0.11652645468711853,
-0.010005265474319458,
0.09595939517021179,
-0.00023537671950180084,
-0.03508017584681511,
0.03189818933606148,
0.025032533332705498,
-0.03304220363497734,
0.07056502997875214,
-0.06064349040389061,
0.09051255136728287,
0.13718634843826294,
0.0506569929420948,
-0.0989675298333168,
-0.02503371797502041,
0.01684846170246601,
0.0026734035927802324,
0.08643729239702225,
0.02752654068171978,
0.09754520654678345,
0.016356656327843666,
0.047678593546152115,
0.000636434240732342,
-0.017675237730145454,
0.032353345304727554,
-0.04528563469648361,
-0.08384128659963608,
0.07625766843557358,
-0.0032043508253991604,
-0.039304886013269424,
0.026871325448155403,
0.04334314912557602,
-0.0007419581525027752,
-0.04896050691604614,
-0.059297751635313034,
0.039979588240385056,
0.06191103532910347,
0.026963595300912857,
0.06646272540092468,
-0.13120296597480774,
-0.0318727008998394,
-0.04297024756669998,
0.04956003278493881,
0.01425553485751152,
0.08020953088998795,
0.04309849813580513,
0.027517231181263924,
-0.07552099972963333,
6.769630089399306e-33,
0.009907898493111134,
0.036914948374032974,
-0.05226200446486473,
0.007075044792145491,
-0.06363439559936523,
-0.011896362528204918,
0.02598002925515175,
0.08219553530216217,
0.012166560627520084,
0.015460689552128315,
-0.06620128452777863,
0.09541699290275574,
-0.0008581480360589921,
-0.07849688827991486,
-0.07345785200595856,
-0.03667415305972099,
-0.004577225539833307,
-0.014544697478413582,
-0.11731375008821487,
-0.024667929857969284,
-0.02005629613995552,
-0.06411289423704147,
-0.05947877839207649,
-0.014273949898779392,
0.011269708164036274,
0.0051540895365178585,
0.05614105239510536,
-0.029469244182109833,
-0.05279969796538353,
0.037187956273555756,
0.011102789081633091,
-0.03839206323027611,
0.020834090188145638,
0.01995979994535446,
0.003095458261668682,
-0.05778583139181137,
-0.020208079367876053,
0.004348437301814556,
-0.05115669593214989,
-0.0345454178750515,
-0.035887204110622406,
0.05139503255486488,
-0.07573749125003815,
0.0013361695455387235,
-0.0012857739347964525,
0.03352389857172966,
-0.03947514668107033,
-0.012459996156394482,
0.03141087666153908,
-0.004372122697532177,
0.023904716596007347,
-0.03824768587946892,
-0.05394098907709122,
0.03158283233642578,
0.0505155548453331,
0.09545225650072098,
0.005663412157446146,
-0.05178391560912132,
-0.012010231614112854,
0.06525446474552155,
0.0692390650510788,
-0.000786856166087091,
-0.030713260173797607,
0.07565499097108841,
0.01761636510491371,
0.06473781168460846,
-0.025029907003045082,
0.03930618241429329,
-0.07197503745555878,
0.05176587402820587,
-0.07597175240516663,
-0.028654858469963074,
0.04028439149260521,
-0.08755189180374146,
0.04228672385215759,
-0.03277691453695297,
0.034634217619895935,
0.1127420961856842,
-0.02629663236439228,
0.05975658446550369,
-0.06258285045623779,
-0.01724182814359665,
0.0776609554886818,
-0.03389323130249977,
-0.03726711496710777,
0.025522945448756218,
0.00996738113462925,
0.0026930482126772404,
0.025098616257309914,
0.0032857791520655155,
0.08036824315786362,
-0.09321435540914536,
0.07467246055603027,
-0.09316276013851166,
-0.11256828159093857,
-6.158343272270961e-33,
0.02579270862042904,
0.03829871863126755,
-0.03516170009970665,
0.02931320294737816,
-0.006750159896910191,
0.03917312249541283,
0.02934584580361843,
0.03179292380809784,
-0.08194301277399063,
-0.08218668401241302,
0.032925479114055634,
0.10903801023960114,
-0.04438145086169243,
-0.026452982798218727,
0.03732671961188316,
-0.0518522635102272,
0.043855078518390656,
0.056738197803497314,
-0.06208304315805435,
0.044654227793216705,
-0.014818424358963966,
0.00956268236041069,
0.043733999133110046,
-0.1092594563961029,
0.020480910316109657,
0.016871698200702667,
0.004125815350562334,
0.015458449721336365,
-0.004803089424967766,
-0.041107889264822006,
-0.0647796168923378,
0.03265954926609993,
-0.0008699872996658087,
0.050419021397829056,
-0.02654319815337658,
-0.07110069692134857,
0.026242731139063835,
-0.00582347996532917,
-0.06606561690568924,
0.011490319855511189,
0.014401166699826717,
0.08708442002534866,
-0.03083702176809311,
0.055006418377161026,
-0.06669703125953674,
0.04480374604463577,
0.03018745221197605,
0.03989097476005554,
0.07188931852579117,
0.026668183505535126,
0.04582686722278595,
-0.09564998745918274,
-0.03739076107740402,
0.032144442200660706,
-0.02418556623160839,
0.010843911208212376,
0.03263983130455017,
0.01961939036846161,
0.014266346581280231,
0.003088614670559764,
0.034120894968509674,
-0.014580479823052883,
-0.038648031651973724,
-0.06680165976285934,
0.0484585240483284,
-0.026708118617534637,
0.06382401287555695,
0.09763985127210617,
0.02708536572754383,
-0.007801302243024111,
0.08527974784374237,
-0.02686414122581482,
-0.01841253787279129,
-0.025478310883045197,
-0.04033004865050316,
0.05426105484366417,
-0.0008187031489796937,
-0.1088276207447052,
0.030336378142237663,
0.0028978001791983843,
0.002078986493870616,
0.0349963903427124,
0.03903498500585556,
0.010417252779006958,
0.06622141599655151,
0.05783235654234886,
-0.029476499184966087,
-0.030586829409003258,
-0.041974473744630814,
-0.05476308614015579,
-0.08761206269264221,
-0.01792280189692974,
0.046177975833415985,
0.05484704673290253,
0.02870142087340355,
-5.443218498157876e-8,
-0.022934913635253906,
0.06688299775123596,
-0.06472735106945038,
0.016642633825540543,
0.08477261662483215,
-0.014261826872825623,
-0.026267390698194504,
0.017354900017380714,
0.04892798140645027,
0.027186241000890732,
0.027350088581442833,
-0.06364297866821289,
0.05126965418457985,
-0.04009991139173508,
0.06112729385495186,
-0.0591500960290432,
-0.011052737943828106,
-0.03449670225381851,
-0.006661553401499987,
0.025442399084568024,
0.017302323132753372,
0.040646348148584366,
0.006911670323461294,
-0.031634505838155746,
-0.027258042246103287,
0.016065753996372223,
0.013485210947692394,
0.07040601223707199,
0.04890919849276543,
-0.07644462585449219,
-0.007637043483555317,
-0.008324593305587769,
0.009341942146420479,
0.007653289940208197,
-0.009423722513020039,
0.06632284075021744,
-0.06044666841626167,
0.010529161430895329,
0.05542672798037529,
0.11052419245243073,
-0.03979005664587021,
-0.05015115067362785,
0.029460350051522255,
0.025778478011488914,
-0.11978858709335327,
-0.014635269530117512,
-0.0046393065713346004,
-0.1388268619775772,
0.021283667534589767,
-0.009437769651412964,
0.019635820761322975,
-0.030635731294751167,
0.05083104223012924,
-0.05003056302666664,
-0.03312910720705986,
0.06671801954507828,
-0.035772863775491714,
-0.05158751457929611,
-0.034240592271089554,
0.018929127603769302,
0.0771142914891243,
-0.07950781285762787,
-0.09921730309724808,
0.007414528634399176
] | 14,342 |
14,345 |
MASTER OT J104946.32+142938.5 - blazar optical flare
|
T. Pogrosheva, V. Lipunov, V. Kornilov, E. Gorbovskoy, O. Gress, N. Tiurina, P. Balanutsa, F. Balakin, V. Vladimirov, A. Kuznetsov, K. Zhirkov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, A. Pozdnyakov, V. Topolev, D. Cheryasov, V. Shumkov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C. Lopez, F. Podesta, C. Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), N. M. Budnev (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveshchensk State Pedagogical University)
|
MASTER OT J104946.32+142938.5 - the detection of blazar optical flare
MASTER-Tavrida auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 10h 49m 46.32s +14d 29m 38.5s on 2021-01-24.02256 UT. The OT unfiltered magnitude is 16.9m (mlim=19.2). The OT is seen in 5 images. There is no minor planet at this place. We have reference image on 2020-03-01.81292 UT with unfiltered mlim=19.9m. Spectral observations are required. The detection an reference images are available at http://master.sai.msu.ru/static/OT/MASTEROTJ104946.32+142938.5.png
|
2021-01-25 16:09:00
|
radio,optical,gamma ray,agn,blazar,planet,quasar,request for observations
|
2021-01-25
|
16:09:00
| 626 |
[
-0.05529091879725456,
-0.05582404136657715,
-0.047391291707754135,
0.04197360575199127,
0.03221253305673599,
-0.033238742500543594,
-0.04892236739397049,
-0.019574319943785667,
0.027734538540244102,
0.0012049683136865497,
-0.05144445598125458,
-0.03570011258125305,
-0.04789206385612488,
-0.05914207547903061,
0.09282448142766953,
-0.0019969441927969456,
-0.0002925978333223611,
-0.06867866218090057,
0.00778484670445323,
0.03149712085723877,
0.00995604693889618,
-0.00902460515499115,
-0.06459633260965347,
-0.015602309256792068,
0.04995058849453926,
0.018140297383069992,
-0.12133318185806274,
-0.023380739614367485,
-0.04412596672773361,
-0.02167246863245964,
-0.01121672336012125,
0.03947962820529938,
-0.1086914911866188,
0.05222644656896591,
0.009994926862418652,
0.029127465561032295,
-0.05239832028746605,
-0.029866771772503853,
0.01661665551364422,
0.010171031579375267,
0.0393887497484684,
0.02870708517730236,
-0.04710681736469269,
0.0034351213835179806,
0.029391899704933167,
-0.030757304280996323,
0.0034135549794882536,
0.03248502314090729,
-0.03149477019906044,
-0.08497115969657898,
0.007672059815376997,
0.041490085422992706,
-0.04658903926610947,
0.07006104290485382,
-0.032487884163856506,
0.03991187736392021,
-0.05563266947865486,
-0.03185127675533295,
0.07649676501750946,
0.02322256565093994,
-0.00953094195574522,
-0.01595747470855713,
-0.06029811501502991,
-0.029489511623978615,
0.00449262373149395,
-0.08490120619535446,
-0.07433079928159714,
-0.02969261072576046,
-0.003213971620425582,
0.033223956823349,
-0.01796681433916092,
0.05895277112722397,
-0.061913687735795975,
-0.10805363953113556,
-0.01724829338490963,
0.060212910175323486,
0.07274344563484192,
0.055788759142160416,
0.041785381734371185,
-0.027488160878419876,
-0.029365330934524536,
0.044008392840623856,
-0.028890861198306084,
0.0010510013671591878,
-0.027436604723334312,
-0.053846120834350586,
0.05415482819080353,
0.031278811395168304,
-0.04742521047592163,
-0.0011603187303990126,
0.10453721135854721,
0.07018797844648361,
-0.031379334628582,
-0.028514398261904716,
0.0065476009622216225,
0.03520059958100319,
0.054069872945547104,
-0.016517333686351776,
0.019755329936742783,
-0.025752844288945198,
0.025362756103277206,
-0.04721064493060112,
-0.0652313232421875,
0.05093423277139664,
0.01433285977691412,
0.09708553552627563,
0.09305393695831299,
0.06308352947235107,
-0.029151974245905876,
0.050651781260967255,
-0.08728471398353577,
0.04331386834383011,
0.02717996947467327,
0.005720261484384537,
0.03301985189318657,
0.02575884573161602,
-0.019167471677064896,
0.099857397377491,
-0.118190698325634,
0.03154543414711952,
-0.07422530651092529,
0.06705375015735626,
0.03541596606373787,
0.05659378319978714,
0.007602958008646965,
0.07618898153305054,
-0.023095522075891495,
5.757560310068025e-33,
0.09885545819997787,
0.004859482869505882,
-0.04099441319704056,
-0.045890603214502335,
0.018058309331536293,
0.045239951461553574,
-0.11400927603244781,
0.13024748861789703,
-0.019153030589222908,
0.01082959957420826,
-0.11980297416448593,
0.01685848832130432,
-0.003485113149508834,
0.005868158768862486,
-0.06580190360546112,
0.025171449407935143,
0.07083068788051605,
0.04230429604649544,
-0.08510740846395493,
0.046607621014118195,
-0.019860779866576195,
0.0902862399816513,
-0.053027860820293427,
-0.06287677586078644,
-0.023706860840320587,
0.0444357767701149,
0.05924065411090851,
-0.053861524909734726,
-0.06738719344139099,
0.0315076969563961,
0.04065336659550667,
-0.066103994846344,
-0.0030845568981021643,
-0.008805455639958382,
-0.0031069107353687286,
-0.04253782704472542,
-0.06543318927288055,
0.039302922785282135,
-0.07918670773506165,
-0.07257375121116638,
-0.003790521062910557,
-0.026387782767415047,
-0.03873308748006821,
0.12389812618494034,
-0.025731705129146576,
0.0015908010536804795,
0.06674609333276749,
0.061065424233675,
0.014924520626664162,
0.011944672092795372,
-0.013590401969850063,
-0.007070070132613182,
-0.07503589987754822,
0.086544930934906,
0.034633819013834,
0.07268798351287842,
0.08848923444747925,
-0.022346096113324165,
-0.021524611860513687,
-0.01750311627984047,
0.02660169079899788,
-0.046836525201797485,
0.0055507696233689785,
-0.0639004111289978,
-0.02206825278699398,
0.04729735478758812,
-0.02139240875840187,
0.1033821627497673,
-0.0032815521117299795,
-0.040413808077573776,
0.023378098383545876,
0.015071336179971695,
0.03524066135287285,
-0.007093445397913456,
0.05272229015827179,
-0.043840114027261734,
0.05609944835305214,
0.0054520186968147755,
0.07552967220544815,
0.028009556233882904,
-0.052344389259815216,
-0.0274638794362545,
0.033845286816358566,
-0.1549493819475174,
-0.10588806867599487,
-0.030823763459920883,
-0.00702350540086627,
0.028077540919184685,
-0.045178428292274475,
-0.09489651024341583,
0.07393170893192291,
0.01067641656845808,
0.07417674362659454,
-0.031576234847307205,
-0.057982638478279114,
-8.279730376551096e-33,
0.07023169100284576,
-0.04120580479502678,
-0.013965255580842495,
-0.02275705710053444,
0.05504737049341202,
0.07055176049470901,
-0.01354691106826067,
0.051492925733327866,
-0.12883131206035614,
-0.047113820910453796,
0.03278012201189995,
-0.03363995999097824,
-0.10261785984039307,
-0.06716267019510269,
0.041637033224105835,
-0.036871012300252914,
0.034565046429634094,
0.07300877571105957,
-0.06210283935070038,
-0.007771317847073078,
-0.030735090374946594,
-0.002596731763333082,
0.06231440603733063,
0.03384196758270264,
-0.029332367703318596,
-0.014188681729137897,
0.06059880927205086,
-0.04407632723450661,
0.01821053773164749,
0.09286363422870636,
-0.060730528086423874,
0.04893605038523674,
-0.06554245948791504,
0.08041193336248398,
-0.017704159021377563,
0.025430936366319656,
-0.025311240926384926,
-0.03872350603342056,
-0.10793314129114151,
0.06849445402622223,
0.0431336909532547,
0.08558958768844604,
-0.02046268992125988,
-0.07460954785346985,
0.013027890585362911,
-0.029482724145054817,
-0.0031959321349859238,
0.08438511192798615,
0.03553421050310135,
0.034439098089933395,
-0.00579727441072464,
-0.05773400515317917,
0.016990797594189644,
0.10315493494272232,
0.042657408863306046,
0.08284080773591995,
0.024266168475151062,
0.020481543615460396,
-0.023618925362825394,
-0.0880800187587738,
-0.011224032379686832,
-0.06778516620397568,
0.04676995798945427,
0.0019103290978819132,
0.04656582698225975,
-0.052524421364068985,
0.031724415719509125,
0.07571367919445038,
0.022476205602288246,
0.02484397031366825,
0.05891944468021393,
-0.06460365653038025,
-0.02202598564326763,
0.004619247280061245,
0.05572262033820152,
0.08215758204460144,
0.013101384043693542,
-0.05393006280064583,
0.015608595684170723,
-0.06414897739887238,
-0.043111152946949005,
0.06317508220672607,
0.030102336779236794,
-0.031222449615597725,
0.033524446189403534,
-0.002549366559833288,
-0.032848287373781204,
-0.12490016222000122,
-0.03223855420947075,
0.06399524956941605,
0.050123270601034164,
0.0483630932867527,
0.03463862091302872,
0.043611738830804825,
0.015549493953585625,
-5.657734902797529e-8,
0.032703522592782974,
0.031011730432510376,
0.012307255528867245,
0.05936188995838165,
-0.0020141301210969687,
-0.05086890608072281,
-0.05245497077703476,
-0.017084423452615738,
-0.008411507122218609,
0.03872419893741608,
0.025985991582274437,
-0.03179588168859482,
0.06705004721879959,
-0.10161296278238297,
-0.035515204071998596,
-0.02602444961667061,
-0.013142927549779415,
-0.10852751135826111,
0.0177468154579401,
0.03618740290403366,
0.03901277482509613,
0.040196675807237625,
-0.005810904316604137,
0.009202178567647934,
0.043618787080049515,
0.029547138139605522,
0.00029355657170526683,
0.04153657332062721,
0.012683183886110783,
-0.000020311144908191636,
-0.01574050821363926,
-0.012724790722131729,
0.023786254227161407,
-0.04925856739282608,
-0.028344545513391495,
0.06838535517454147,
-0.06188301742076874,
0.014920749701559544,
0.005452432669699192,
0.06476416438817978,
-0.011424573138356209,
-0.03656556457281113,
0.04756397381424904,
-0.013148273341357708,
-0.03487153723835945,
0.06119024381041527,
-0.0035427992697805166,
-0.010315656661987305,
-0.056427083909511566,
-0.00030349628650583327,
-0.003429917385801673,
-0.031613267958164215,
-0.020892394706606865,
-0.03173740580677986,
-0.057601187378168106,
-0.045185696333646774,
-0.09967485815286636,
0.015271944925189018,
-0.032953184098005295,
-0.020291699096560478,
0.01548239216208458,
-0.0696757361292839,
-0.13023684918880463,
-0.019896483048796654
] | 14,343 |
14,346 |
Fermi-LAT detection of enhanced gamma-ray activity from the FSRQ PKS 1954-388
|
F. D'Ammando (INAF-IRA Bologna) on behalf of the Fermi Large Area Telescope Collaboration
|
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed enhanced gamma-ray activity from a source positionally consistent with the flat-spectrum radio quasar PKS 1954-388, also known as 4FGL J1958.0-3845 (The Fermi-LAT Collaboration 2020, ApJS, 247, 33), with radio coordinates, (J2000.0), R.A.: 299.499247 deg, Dec.: -38.751766 deg, (Ma et. al. 1998, AJ, 116, 516) and a redshift of z = 0.63 (Browne, Savage & Bolton 1975, MNRAS, 173, 87P).
Preliminary analysis indicates that this source was in an elevated gamma-ray emission state during 2021 January 19-24, with a daily averaged gamma-ray flux (E > 100 MeV) of (1.7 +/- 0.3) x 10^-6 photons cm^-2 s^-1 (statistical uncertainty only) on January 24. This corresponds to a flux increase of a factor of 25 relative to the average flux reported in the fourth Fermi-LAT catalog (4FGL). The corresponding photon index is 1.9+/-0.1, significantly smaller than the 4FGL value of 2.34 +/- 0.02. Gamma-ray flaring activity from PKS 1954-388 with a comparable hard spectrum was previously reported in 2015 September 16 (ATel #8063).
Because Fermi normally operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. This source is included in the "LAT Monitored Sources" and consequently, a preliminary estimation of the daily gamma-ray flux observed by Fermi-LAT will be publicly available ( Fermi LAT Monitored Source List Light Curves ). We encourage multi-frequency observations of this source. For this source, the Fermi-LAT contact person is S. Cutini ([email protected]).
The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
|
2021-01-26 04:52:00
|
radio,gamma ray,agn,black hole,blazar,quasar,request for observations
|
2021-01-26
|
04:52:00
| 1,895 |
[
-0.06713475286960602,
-0.02022564224898815,
-0.05139412358403206,
0.0485786572098732,
-0.00914661306887865,
-0.0363236665725708,
0.051451701670885086,
0.06683684140443802,
-0.008790817111730576,
-0.0023126136511564255,
-0.028950875625014305,
-0.010873904451727867,
0.027913233265280724,
0.0015535372076556087,
0.0384131520986557,
0.002126808511093259,
0.0741128996014595,
-0.10508492588996887,
-0.016422053799033165,
-0.015748299658298492,
-0.09455030411481857,
0.08855943381786346,
0.07237381488084793,
0.0020674620755016804,
0.057037945836782455,
-0.08435893058776855,
-0.032491106539964676,
-0.07133163511753082,
0.029333483427762985,
0.0014519589021801949,
-0.015326075255870819,
0.024832822382450104,
-0.02943279780447483,
0.038233090192079544,
0.031383007764816284,
-0.002464596414938569,
0.040073078125715256,
-0.06650517135858536,
0.015160078182816505,
0.010961011052131653,
0.021923698484897614,
-0.021034875884652138,
0.010752704925835133,
-0.03259643539786339,
-0.06125010550022125,
-0.017190931364893913,
0.0024773278273642063,
-0.026981530711054802,
-0.0509616956114769,
0.001271772664040327,
0.002640253398567438,
0.04603885859251022,
-0.004617941100150347,
0.07458605617284775,
-0.009518505074083805,
0.05050848424434662,
-0.05324961245059967,
-0.0808427631855011,
0.05804659053683281,
0.08008775115013123,
-0.03579797223210335,
0.016556356102228165,
-0.0607512891292572,
-0.022238824516534805,
0.026130227372050285,
0.007409234065562487,
-0.05280323699116707,
-0.08862612396478653,
0.009558184072375298,
-0.05252092704176903,
-0.005457954481244087,
0.015879187732934952,
-0.08215993642807007,
-0.08199702948331833,
0.005634021945297718,
-0.000453604239737615,
0.08929314464330673,
-0.0037924270145595074,
0.07389964908361435,
-0.07944987714290619,
0.02726692147552967,
0.005829641595482826,
0.04876120761036873,
0.005943590309470892,
-0.014807064086198807,
-0.0002838203217834234,
-0.07896343618631363,
0.07579663395881653,
0.054817989468574524,
0.03715115413069725,
0.032414648681879044,
0.017750496044754982,
-0.05782818794250488,
0.02397574670612812,
-0.03549357131123543,
0.03138662874698639,
0.010723719373345375,
0.02584027126431465,
0.09071006625890732,
0.09914284199476242,
0.06557463854551315,
0.00838874839246273,
0.0060434346087276936,
0.07353878766298294,
-0.06494784355163574,
0.03463755548000336,
0.030212996527552605,
0.08123908191919327,
-0.08676520735025406,
0.021648267284035683,
0.06027017906308174,
0.0012649463023990393,
-0.000803155533503741,
-0.07585764676332474,
-0.029648182913661003,
0.02161143161356449,
0.011337910778820515,
0.03825664892792702,
-0.14708861708641052,
-0.06789866089820862,
-0.024000929668545723,
0.035748858004808426,
0.02797199785709381,
0.058776214718818665,
0.01443356741219759,
0.005132258869707584,
-0.079475037753582,
4.0593526414518524e-33,
0.05262500047683716,
0.074449822306633,
0.034741923213005066,
-0.005512552335858345,
-0.00875649880617857,
0.10871809720993042,
-0.06991927325725555,
0.017463721334934235,
0.003596752882003784,
0.005583422724157572,
-0.07775567471981049,
0.06363296508789062,
-0.01722162961959839,
-0.07306443899869919,
-0.018272673711180687,
-0.03270363435149193,
0.015194292180240154,
0.07382266223430634,
-0.0626535564661026,
0.012915036641061306,
-0.006290302611887455,
0.039392050355672836,
-0.044865209609270096,
-0.004209540784358978,
0.13138756155967712,
0.07345771789550781,
-0.0203862302005291,
0.0012059183791279793,
-0.06637304276227951,
0.035740531980991364,
-0.01698516122996807,
0.043980032205581665,
-0.025317316874861717,
-0.010360829532146454,
0.011782431975007057,
-0.07035207003355026,
-0.09382002055644989,
0.016431067138910294,
-0.042191240936517715,
-0.0026248437352478504,
0.07083777338266373,
0.08451667428016663,
-0.07812772691249847,
-0.02461455948650837,
0.017061078920960426,
0.006520419847220182,
-0.012115185149013996,
0.03788287937641144,
0.06627745926380157,
0.04737318307161331,
-0.03511391207575798,
-0.007667949888855219,
-0.050103314220905304,
0.013941530138254166,
0.020122379064559937,
0.053953856229782104,
0.021347224712371826,
-0.03348251432180405,
0.06387107819318771,
0.05164920538663864,
0.041820596903562546,
0.06880353391170502,
0.03841201961040497,
0.06298156827688217,
-0.0052075982093811035,
0.0008105411543510854,
0.02881154976785183,
0.011909445747733116,
-0.03182857111096382,
0.035837408155202866,
-0.028522128239274025,
0.08391061425209045,
0.09421892464160919,
-0.06899002939462662,
0.06941220164299011,
-0.13790777325630188,
-0.016593176871538162,
0.0336407832801342,
-0.025089330971240997,
0.027953481301665306,
-0.025503739714622498,
-0.09411557763814926,
0.04691228270530701,
-0.024268945679068565,
-0.021314145997166634,
0.040202487260103226,
-0.05321354791522026,
0.024667005985975266,
0.04127300903201103,
-0.023590903729200363,
0.05239829048514366,
0.002200127113610506,
-0.005923669319599867,
-0.04567364975810051,
-0.09005790948867798,
-3.285822624655077e-33,
0.0006441809819079936,
-0.010466440580785275,
-0.02628171257674694,
-0.004432879853993654,
-0.004450638312846422,
-0.03621971234679222,
0.04595034569501877,
0.03913074731826782,
-0.02851679176092148,
0.0011443543480709195,
0.06805481016635895,
0.09615709632635117,
-0.01463480293750763,
-0.0721329003572464,
0.00730803282931447,
-0.05056540668010712,
0.01587267965078354,
0.023658908903598785,
-0.05088943615555763,
0.023162540048360825,
0.024878215044736862,
-0.05288602411746979,
0.000008542487194063142,
-0.03423457592725754,
0.02815805748105049,
0.013740326277911663,
0.06561283767223358,
-0.03516525402665138,
0.018802182748913765,
-0.0035732327960431576,
-0.09209862351417542,
0.01031697541475296,
-0.0008126806351356208,
-0.1137833371758461,
0.05770702660083771,
-0.04077032208442688,
0.06120563670992851,
-0.00006741317338310182,
-0.08361277729272842,
-0.07389973104000092,
0.03513443097472191,
0.18612316250801086,
0.0002965107560157776,
0.02225332148373127,
-0.02688414417207241,
0.10203209519386292,
0.007205999922007322,
0.03706255927681923,
-0.025025110691785812,
-0.0201644878834486,
0.005958677269518375,
-0.07672957330942154,
-0.0028399378061294556,
0.07283853739500046,
-0.037453122437000275,
0.025862377136945724,
0.005271194037050009,
0.0588747039437294,
-0.03880069777369499,
0.006885420065373182,
-0.026871437206864357,
-0.043587055057287216,
0.0038398737087845802,
-0.06015026569366455,
0.07893263548612595,
-0.04842490330338478,
0.03864250332117081,
0.119796521961689,
0.005865768063813448,
-0.00009469140786677599,
0.09965772926807404,
-0.12402571737766266,
-0.031330548226833344,
0.030899669975042343,
0.03406567871570587,
0.12739641964435577,
0.04087771102786064,
-0.07381487637758255,
0.005198552273213863,
-0.00804011058062315,
-0.02729712426662445,
0.027016209438443184,
0.008948072791099548,
0.0051352656446397305,
0.07454413920640945,
-0.028778811916708946,
-0.0685429647564888,
-0.028786180540919304,
-0.04217352345585823,
0.004557936452329159,
-0.057735737413167953,
-0.006582075729966164,
0.009466292336583138,
0.026449309661984444,
0.008806775324046612,
-5.8467385599669797e-8,
-0.01733994670212269,
0.0624040849506855,
-0.09749545902013779,
0.06428112089633942,
0.03852437436580658,
-0.05403849482536316,
0.021298961713910103,
-0.00852925330400467,
-0.01988755539059639,
0.029828930273652077,
0.04561237990856171,
0.060660116374492645,
0.06276164203882217,
-0.05638254061341286,
0.0114411236718297,
0.0065562063828110695,
-0.03378002345561981,
-0.04448957368731499,
-0.024966999888420105,
0.04620875045657158,
0.06377892941236496,
0.04624607414007187,
0.06906479597091675,
-0.037728410214185715,
-0.03452359139919281,
0.007000947371125221,
-0.036498382687568665,
0.0652482882142067,
0.029680117964744568,
-0.08774606883525848,
-0.015262671746313572,
-0.004107138141989708,
0.04292721673846245,
-0.024861251935362816,
-0.07224123924970627,
-0.05534498021006584,
-0.08229339122772217,
-0.006452029105275869,
0.061664801090955734,
0.04519551619887352,
-0.040046326816082,
-0.06201989948749542,
0.06941086053848267,
0.035123810172080994,
-0.1226886734366417,
0.04021643474698067,
-0.05540178716182709,
-0.09185153990983963,
0.024378417059779167,
0.027740711346268654,
-0.06374851614236832,
0.020906375721096992,
0.02014271542429924,
-0.11376625299453735,
-0.06999335438013077,
0.014774455688893795,
0.030033864080905914,
-0.013498353771865368,
-0.014552532695233822,
-0.05550602078437805,
0.051441386342048645,
-0.09063733369112015,
-0.12347573041915894,
0.016643045470118523
] | 14,344 |
14,347 |
Non-detection of radio pulses from GRB 210119A/Swift J1851.2-6148 with Parkes
|
Marcus E. Lower (Swinburne University of Technology, SUT), Rahul Sengar (SUT), Pravir Kumar (SUT) and Ryan M. Shannon (SUT)
|
Following the Swift-BAT detection of a short burst from either a gamma-ray burst (GRB) or undiscovered soft gamma-ray repeater (SGR) in the Galactic bulge (GCN #29323), we conducted a target of opportunity observation of the source with the Parkes radio telescope using the Ultra-Wideband Low receiver system (Hobbs et al. 2020), starting at UTC 2021-01-19-22:13:21.
We recorded 2777 seconds of pulsar search-mode data using both the DFB4 (3.1 GHz central frequency, 1024 MHz bandwidth, 256 microsec time resolution) and Medusa (2.368 GHz central frequency, 3328 MHz bandwidth, 64 microsec time resolution) backend recording systems. After flagging channels affected by radio-frequency interference, we searched the DFB4 data for periodic signals using both the peasoup (Barr 2020) and PRESTO (Ransom 2001) pulsar-search packages with dispersion measure (DM) trials ranging between 0-1000 pc/cm^3 and a S/N threshold of 7. Visual inspection of the output candidates did not identify any positive pulsar candidates. Additionally, no candidates were found in a separate search of the Medusa data split into two subbands covering 1230-1790 MHz and 1030-2030 MHz using the peasoup package.
Both the DFB4 and Medusa data were searched for single pulses and fast radio bursts (FRBs) using Heimdall (Barsdell 2012) and Fetch (Agarwal et al. 2020) over a DM range of 50-1000 pc/cm^3. Data were searched using a tiered sub-band strategy as described in Kumar et al. (2021). No significant candidates were identified.
The lack of any associated radio pulses is consistent with the gamma-ray burst originating from either a radio-quiet Galactic SGR or an extragalactic short GRB. However, we note that subsequent spectral analysis of the Swift-BAT data (GCN #29332) and the detection of the burst by GECAM-B (GCN #29331) both suggest a short GRB origin is most probable. If a millisecond magnetar was born during the GRB, then we can rule out the emission of 1 ms width FRBs down to a limiting fluence of ~0.15 Jy ms for broadband (3.3 GHz bandwidth) bursts or ~1 Jy ms for narrowband (64 MHz bandwidth) bursts during our observation.
We would like to thank the ATNF staff, in particular James Green, for allocating the observation time.
|
2021-01-26 10:52:00
|
radio,gamma ray,fast radio burst,gamma-ray burst,magnetar,neutron star,pulsar,soft gamma-ray repeater,star
|
2021-01-26
|
10:52:00
| 2,230 |
[
-0.071110799908638,
-0.02728130668401718,
-0.08875720202922821,
-0.004689565394073725,
0.004200545139610767,
-0.014794403687119484,
-0.006947855465114117,
-0.01656952314078808,
-0.016233578324317932,
-0.03816986456513405,
0.051469836384058,
-0.01725609041750431,
0.03983386605978012,
-0.01307271234691143,
0.09303586184978485,
-0.039072275161743164,
0.032890982925891876,
-0.10122597962617874,
0.07469264417886734,
-0.011983299627900124,
-0.01860869489610195,
0.05582980439066887,
-0.04009150713682175,
0.00961953867226839,
-0.009189283475279808,
-0.05028620734810829,
-0.05947241932153702,
-0.11027706414461136,
0.010241515003144741,
-0.07244791835546494,
0.06405581533908844,
0.047795698046684265,
0.03569141402840614,
0.06932190805673599,
0.01153393741697073,
-0.022411802783608437,
0.06962741911411285,
-0.03277132660150528,
0.013990465551614761,
-0.0029190133791416883,
-0.031525302678346634,
-0.05970779433846474,
-0.03389895334839821,
0.07053840160369873,
-0.0968942791223526,
-0.010485020466148853,
0.03971029445528984,
-0.01845923252403736,
0.01358405314385891,
-0.06124936416745186,
0.039797503501176834,
0.02721450850367546,
0.05763697624206543,
0.07004773616790771,
0.0908205434679985,
0.0069547598250210285,
-0.111635223031044,
-0.02826635167002678,
0.07318264991044998,
0.020946089178323746,
0.01728198677301407,
-0.019221525639295578,
-0.08548389375209808,
-0.05468998849391937,
-0.03026471473276615,
-0.026898598298430443,
-0.00871096272021532,
-0.013756551779806614,
0.06731930375099182,
0.0011833315948024392,
0.04333742335438728,
-0.009178235195577145,
-0.011551517061889172,
0.01807990111410618,
0.012114454992115498,
0.07327243685722351,
0.045370202511548996,
0.02831333689391613,
0.0458957701921463,
-0.042508315294981,
-0.05536244064569473,
-0.07261335849761963,
-0.03790348023176193,
-0.006097369361668825,
0.013192026875913143,
-0.03102971240878105,
0.02600298449397087,
0.05370599031448364,
0.024535851553082466,
-0.021280260756611824,
0.032236065715551376,
0.0075032711029052734,
-0.04221918061375618,
0.036004941910505295,
-0.053084325045347214,
0.0518653430044651,
0.023859700188040733,
-0.01435649860650301,
0.11864630877971649,
0.020125679671764374,
0.05046621337532997,
-0.04365358129143715,
-0.029352840036153793,
0.06800917536020279,
-0.045676134526729584,
-0.07993501424789429,
0.010822559706866741,
0.017413703724741936,
0.002928056288510561,
0.025776715949177742,
-0.02046574093401432,
0.0701390877366066,
-0.005800287239253521,
0.028018716722726822,
0.025117911398410797,
0.025778934359550476,
0.006201090756803751,
0.01596308872103691,
-0.02803601697087288,
-0.053629789501428604,
-0.07593562453985214,
0.0074857682920992374,
-0.045247744768857956,
-0.004845575895160437,
0.06993304193019867,
0.08442985266447067,
0.03332681953907013,
6.90337342853205e-33,
-0.0369425043463707,
0.06800183653831482,
-0.03353835269808769,
-0.07279837131500244,
-0.04350687190890312,
0.045138247311115265,
-0.05310489982366562,
0.08953652530908585,
0.056881096214056015,
0.1001339703798294,
-0.11611203104257584,
0.018418002873659134,
-0.027746975421905518,
-0.04139728471636772,
0.01218187715858221,
-0.046006351709365845,
-0.0114550506696105,
0.016569852828979492,
-0.0778271034359932,
-0.010654689744114876,
-0.05582154542207718,
-0.02130160853266716,
-0.01108033861964941,
-0.04205569624900818,
0.09874382615089417,
0.037519730627536774,
0.016834208741784096,
-0.06897979974746704,
0.1021866649389267,
0.03243016079068184,
-0.006773693487048149,
0.002354377182200551,
0.03134119138121605,
-0.01994778774678707,
0.015002784319221973,
-0.013375448994338512,
-0.03563397377729416,
0.08124704658985138,
-0.08084402233362198,
-0.03428823873400688,
0.08180232346057892,
0.02642015367746353,
-0.08950697630643845,
-0.00896699633449316,
0.02956537716090679,
-0.08559916913509369,
0.011124618351459503,
0.0583975613117218,
0.004965623375028372,
0.06788810342550278,
0.008569909259676933,
-0.0013034031726419926,
-0.1126648336648941,
-0.029904263094067574,
0.08861847966909409,
0.14676296710968018,
0.05749620869755745,
0.010486197657883167,
0.0021642677020281553,
0.05383842810988426,
0.03893914446234703,
-0.030921323224902153,
0.08794437348842621,
-0.029254641383886337,
0.05405179411172867,
-0.008440486155450344,
-0.006535556633025408,
0.0010303219314664602,
-0.021284252405166626,
0.08847006410360336,
0.022456811740994453,
0.0007618353702127934,
0.09795628488063812,
-0.11335966736078262,
0.08138543367385864,
-0.06951488554477692,
0.042685940861701965,
0.07195814698934555,
0.02185782790184021,
0.01439015194773674,
-0.07012595236301422,
-0.05386989563703537,
0.02766329236328602,
0.00010004537762142718,
-0.015059198252856731,
0.03653436899185181,
-0.018239645287394524,
-0.05326995253562927,
0.010412871837615967,
-0.024077098816633224,
-0.029428359121084213,
0.009177531115710735,
-0.02547491155564785,
-0.03369976580142975,
-0.08963075280189514,
-5.4476320409241134e-33,
0.08972083032131195,
-0.04489985480904579,
0.08476084470748901,
-0.005136944353580475,
0.017745666205883026,
0.024206001311540604,
-0.006881075911223888,
0.048644449561834335,
-0.02603408880531788,
-0.008453458547592163,
0.011648607440292835,
0.05845653638243675,
0.0023617763072252274,
0.009420107118785381,
-0.054056745022535324,
0.022687453776597977,
0.031145861372351646,
0.009422020986676216,
-0.04029126837849617,
0.04198816418647766,
0.019185515120625496,
-0.003658897243440151,
0.005303206387907267,
-0.004923966713249683,
-0.007119409274309874,
-0.014428571797907352,
0.047919806092977524,
0.06260022521018982,
0.02302207238972187,
-0.05526348948478699,
0.007242079358547926,
-0.012276002205908298,
0.048239901661872864,
-0.03846299648284912,
0.05886845290660858,
-0.060773495584726334,
0.057758182287216187,
0.08819738030433655,
-0.05316257104277611,
-0.002517060609534383,
0.014811927452683449,
0.1644609570503235,
-0.04309944435954094,
-0.010897854343056679,
-0.014288860373198986,
0.027940455824136734,
-0.0009825938614085317,
0.07143798470497131,
-0.03959469869732857,
0.010263769887387753,
0.05700500309467316,
-0.08053190261125565,
0.0032014453317970037,
0.08687085658311844,
-0.012650638818740845,
0.03835548460483551,
-0.032351091504096985,
-0.003450950374826789,
-0.018931150436401367,
0.021277757361531258,
-0.021862566471099854,
-0.0611414760351181,
-0.03381965681910515,
-0.01998835802078247,
0.03544505313038826,
-0.06987568736076355,
0.0009269532165490091,
0.01682136207818985,
-0.03623924031853676,
0.006064560730010271,
-0.023258095607161522,
-0.06917629390954971,
-0.03456796705722809,
0.0387190617620945,
0.016596604138612747,
0.09754672646522522,
-0.05554720014333725,
-0.06632969528436661,
0.003406057832762599,
-0.008981958962976933,
-0.08030550926923752,
0.06973400712013245,
-0.04331564903259277,
0.0065214126370847225,
-0.0006186999380588531,
0.10695179551839828,
-0.02361387014389038,
0.00449770363047719,
0.032202839851379395,
-0.06029847636818886,
-0.052075911313295364,
0.03964737802743912,
-0.004508905578404665,
0.09413667768239975,
0.07993509620428085,
-5.965137717112157e-8,
-0.07624929398298264,
0.07076840102672577,
-0.06293483078479767,
-0.01508745551109314,
0.07416926324367523,
-0.05675235018134117,
-0.03382174298167229,
-0.031441133469343185,
0.03600835055112839,
-0.08708714693784714,
-0.0008763577789068222,
-0.030410161241889,
-0.004622544627636671,
0.0006888104253448546,
0.06070994213223457,
-0.0033734976314008236,
0.03421797230839729,
-0.14808985590934753,
-0.0034251087345182896,
0.0486571379005909,
0.016729304566979408,
0.039084866642951965,
0.10728627443313599,
0.002011864213272929,
0.037156593054533005,
0.06358332186937332,
-0.04131563752889633,
0.03755147382616997,
0.016831763088703156,
-0.06302797794342041,
0.033262185752391815,
0.05927875638008118,
-0.0013849447714164853,
-0.01872243732213974,
-0.03975941240787506,
0.03040754795074463,
0.027059199288487434,
-0.014103597961366177,
0.05207512155175209,
0.1608860343694687,
0.02020486816763878,
-0.0556819885969162,
-0.006605861708521843,
-0.03615958243608475,
-0.15219861268997192,
0.03217778354883194,
0.013229835778474808,
-0.03926395997405052,
-0.014627245254814625,
0.0019930172711610794,
-0.04089978337287903,
-0.043482840061187744,
-0.016072804108262062,
-0.1051303967833519,
-0.011905360966920853,
0.0011718164896592498,
-0.04605984687805176,
-0.10677580535411835,
-0.04464766010642052,
-0.020410291850566864,
0.05157221108675003,
-0.0718311071395874,
-0.1258806586265564,
0.024847012013196945
] | 14,345 |
14,348 |
NuSTAR observation of the ongoing outburst of the accreting X-ray pulsar 2S 1553-542
|
C. Malacaria (NASA-MSFC/USRA), K. Pottschmidt (NASA-GSFC, CRESST, UMBC), F. Fuerst (Quasar for ESA), P. Kretschmar (ESA/ESAC), J. B. Coley (Howard University, NASA-GSFC/CRESST), L. Ducci (IAAT), J. Wilms (ECAS), M. T. Wolff (NRL), R. Staubert (IAAT), I. Kreykenbohm (ECAS)
|
Based on the renewed activity from the accreting pulsar in the Be/X-ray binary system 2S 1553-542 (ATel #14301, #14308, #14335), we initiated a 30 ks Discretionary Directorâs Time observation with NuSTAR, which was performed starting on January 22, 21:45:08 (UTC). The source was clearly detected through the full NuSTAR energy band (3-79 keV), with an average count rate of 45 c/s (FPMA and FPMB combined). Following the 2015 NuSTAR observation of 2S 1553-542 analyzed by Tsygankov et al. (2016, MNRAS 457, 258), we describe the spectrum with a soft blackbody plus an absorbed cutoff power-law model modified by an Fe Kalpha line at 6.4 keV and a Gaussian absorption line to account for the Cyclotron Resonant Scattering Feature. The resulting χ2/d.o.f. is 1429/1285. The best-fit spectral parameters are (all errors at 90% c.l.): NH = (1.2 +/- 0.3)x1022 cm-2, kTBB = 1.29 +/- 0.07 keV, normBB = 6.9 +/- 1.3, \Gamma = -0.43 +/- 0.3, HighECut = 5.7 +/- 0.3 keV, Ecyc = 27.0 +/- 0.3 keV, \sigmacyc = 6.4 +/- 0.5 keV, Strengthcyc = 9.2 +/- 1.8. These values are roughly consistent with those obtained from the NuSTAR observation in 2015. However, the currently observed flux is 1.6x10-9 erg/cm2/s (3-79 keV), that is 60% higher than that catched by NuSTAR in 2015. For a barycentered (not orbit corrected) lightcurve, the obtained pulse period is 9.2821(5) s. The pulse profile in the 3-79 keV energy band is dominated by a single pulse over roughly half a phase, with a hint of a second, narrower peak in the second half of the spin phase. Its pulsed fraction is about 60%. The data analysis is ongoing. We encourage further observations at all wavelengths to cover the current outburst. We thank the NuSTAR PI, Fiona Harrison, for approving the DDT request, and the NuSTAR SOC for rapidly carrying out the observation.
|
2021-01-26 11:02:00
|
x-ray,binary,neutron star,pulsar,star,transient
|
2021-01-26
|
11:02:00
| 1,820 |
[
-0.06890881061553955,
-0.04933749884366989,
-0.03340333700180054,
0.033939629793167114,
0.02868904173374176,
-0.028325267136096954,
-0.0336696021258831,
0.005226334556937218,
0.08710987120866776,
0.06431921571493149,
0.01612980104982853,
-0.09210487455129623,
0.023543480783700943,
-0.04010690748691559,
-0.11127649247646332,
0.005408060736954212,
-0.025471869856119156,
-0.13468925654888153,
0.05297015234827995,
0.015366979874670506,
-0.04087086394429207,
0.07384791225194931,
-0.06357349455356598,
0.01552870124578476,
0.014177858829498291,
0.014937576837837696,
-0.11220889538526535,
-0.10074804723262787,
0.005273899063467979,
-0.09937982261180878,
-0.02705823816359043,
0.026170529425144196,
0.02053319476544857,
0.03792378306388855,
0.030965078622102737,
0.07308734208345413,
-0.007649274542927742,
-0.047722507268190384,
-0.028806107118725777,
-0.011593920178711414,
0.0094072837382555,
-0.04816476255655289,
0.004993032664060593,
0.0005211034440435469,
-0.0962878167629242,
-0.012703252956271172,
0.040447529405355453,
-0.037826381623744965,
-0.05351235717535019,
0.07279898971319199,
0.027762677520513535,
0.015946155413985252,
0.023305431008338928,
-0.001792996539734304,
0.04190456494688988,
-0.016332074999809265,
-0.07597026973962784,
-0.042924050241708755,
0.049725525081157684,
-0.03993432968854904,
0.0009179358021356165,
0.022091852501034737,
-0.085539810359478,
-0.014490221627056599,
0.06999906152486801,
0.009898271411657333,
-0.023177582770586014,
-0.06774654984474182,
0.03570486605167389,
-0.015582812018692493,
0.0536770261824131,
-0.007543644867837429,
-0.07443214952945709,
-0.03223385661840439,
0.001520417514257133,
0.05644388496875763,
0.11056879907846451,
0.004890154581516981,
0.03785906732082367,
-0.10318849980831146,
-0.02309243008494377,
0.03858959302306175,
-0.011987699195742607,
-0.054782379418611526,
-0.015558313578367233,
0.009396621026098728,
-0.05477486550807953,
0.10947298258543015,
-0.02171454392373562,
0.043050967156887054,
0.12207238376140594,
-0.007785873021930456,
-0.03296871855854988,
0.010243642143905163,
0.06687017530202866,
0.005643777083605528,
0.004291231743991375,
0.04281945154070854,
0.12001927196979523,
-0.012317328713834286,
0.03251303359866142,
0.01528527494519949,
-0.14276264607906342,
0.027470787987113,
-0.08064628392457962,
-0.02338053472340107,
0.055367741733789444,
0.015417537651956081,
-0.012758113443851471,
0.06364934891462326,
0.004655781202018261,
0.020747661590576172,
-0.013529284857213497,
-0.03858514875173569,
0.01598103903234005,
0.057644255459308624,
-0.03408815339207649,
0.024748917669057846,
-0.016676604747772217,
-0.0546252615749836,
-0.04589047282934189,
-0.00839515496045351,
-0.007716720923781395,
0.04597120359539986,
0.031050797551870346,
0.037379540503025055,
-0.01094508171081543,
5.542812553194163e-33,
0.04080786928534508,
0.0030238009057939053,
0.06379837542772293,
-0.033215124160051346,
-0.040383994579315186,
0.0005812488379888237,
-0.07868938148021698,
0.034167759120464325,
0.030212732031941414,
0.005259751342236996,
-0.0801100954413414,
0.0275020282715559,
-0.04057944193482399,
-0.08061417192220688,
-0.049410395324230194,
-0.035525526851415634,
0.06982643902301788,
0.05956409126520157,
-0.11700057983398438,
-0.04140682518482208,
-0.06310852617025375,
-0.0077477991580963135,
-0.08041800558567047,
-0.04127128794789314,
0.06284695863723755,
0.06687109917402267,
0.004379747435450554,
-0.0015269984724000096,
-0.0016285869060084224,
0.02113635092973709,
-0.019432492554187775,
0.06064918637275696,
-0.018134498968720436,
0.0469832681119442,
-0.002578956540673971,
-0.003917510621249676,
-0.02963411808013916,
0.06477010995149612,
-0.06572504341602325,
0.004825988784432411,
0.12397944182157516,
0.07458724081516266,
-0.029329748824238777,
0.012703701853752136,
0.000363136176019907,
-0.059048786759376526,
-0.06446980684995651,
-0.00022707402240484953,
0.019659779965877533,
0.05308124050498009,
0.0006491265376098454,
0.04407292976975441,
-0.0008789642597548664,
0.021898074075579643,
0.05813928321003914,
0.09682045131921768,
0.04732578620314598,
-0.020540539175271988,
0.04233960062265396,
0.07698984444141388,
0.06711146235466003,
0.07368624210357666,
0.05224137380719185,
-0.010832130908966064,
-0.02333947643637657,
0.05053937807679176,
-0.028063206002116203,
0.04112678021192551,
0.00314103695563972,
0.05755714699625969,
-0.10337608307600021,
0.08432096987962723,
0.059310514479875565,
-0.04573236033320427,
0.08121208101511002,
-0.06541632860898972,
-0.0035356536973267794,
0.07373721152544022,
-0.019035566598176956,
0.04553883522748947,
-0.024967843666672707,
-0.08316195756196976,
0.08638357371091843,
-0.0607333779335022,
-0.08438253402709961,
-0.03863748535513878,
-0.017296552658081055,
0.034497909247875214,
-0.029981698840856552,
0.008295300416648388,
0.07278552651405334,
-0.03346473351120949,
-0.005846034735441208,
0.012898982502520084,
-0.11686928570270538,
-6.5939576014567e-33,
0.008887873962521553,
-0.07200956344604492,
0.06979350000619888,
0.005558342207223177,
-0.012990543618798256,
0.032557327300310135,
-0.037556860595941544,
0.010306421667337418,
-0.007864665240049362,
-0.0020375193562358618,
0.08181840181350708,
0.05915229767560959,
-0.01587725058197975,
-0.08928921073675156,
0.07630396634340286,
0.01678040809929371,
0.06101088598370552,
0.03588680922985077,
-0.0812777578830719,
-0.01713620126247406,
0.016695454716682434,
0.004523967858403921,
0.030994923785328865,
-0.04425468295812607,
-0.03906720131635666,
0.038385167717933655,
0.059455741196870804,
-0.019001532346010208,
0.007698495406657457,
-0.011532335542142391,
-0.015410473570227623,
0.028291672468185425,
-0.026540759950876236,
-0.011620705015957355,
-0.051462627947330475,
-0.05631732940673828,
0.04827835038304329,
0.06839863210916519,
-0.08943086862564087,
-0.024513419717550278,
0.04023533686995506,
0.2003423422574997,
-0.03777167946100235,
0.03693178668618202,
-0.03155844658613205,
0.05834517255425453,
0.06363940238952637,
0.0034414739347994328,
0.019226593896746635,
-0.016380833461880684,
0.03855261951684952,
-0.03613005578517914,
0.0299016535282135,
0.09329912066459656,
0.02861933782696724,
0.06841444224119186,
-0.03322189301252365,
-0.004246780648827553,
0.05133664608001709,
-0.038411542773246765,
0.007919583469629288,
-0.04349791258573532,
-0.03460398316383362,
-0.1046232208609581,
0.05419535934925079,
-0.09262107312679291,
0.008829643949866295,
0.06888037919998169,
0.000964200880844146,
0.022833455353975296,
0.03994102403521538,
-0.05557424947619438,
-0.0693751722574234,
0.006424031686037779,
0.011858988553285599,
0.03468576818704605,
-0.002116700867190957,
-0.12149347364902496,
0.02812664769589901,
-0.045712027698755264,
-0.0935683324933052,
0.039973221719264984,
-0.006600177381187677,
-0.01166854053735733,
0.09373542666435242,
0.03365475311875343,
0.038972798734903336,
-0.07911612838506699,
-0.03193775936961174,
-0.011053947731852531,
-0.06742922961711884,
-0.0022323806770145893,
0.014150728471577168,
0.060199201107025146,
0.0125550776720047,
-6.183294942729844e-8,
0.00878381822258234,
0.017712080851197243,
-0.08202780038118362,
0.036468781530857086,
0.061636947095394135,
-0.024965642020106316,
-0.06573493033647537,
0.030338631942868233,
0.05768905207514763,
-0.0355621874332428,
0.03442985191941261,
-0.03058541566133499,
0.046636030077934265,
-0.09665632992982864,
0.03821448236703873,
-0.02772972360253334,
-0.002503292402252555,
-0.058379556983709335,
-0.0038584612775593996,
0.005781432148069143,
-0.0041904449462890625,
0.018222173675894737,
0.02630632184445858,
-0.03858600929379463,
-0.029928196221590042,
0.05640636757016182,
0.058694738894701004,
0.07246032357215881,
0.03521062806248665,
-0.030235514044761658,
-0.0685589611530304,
0.04113224521279335,
-0.03594140335917473,
-0.03197546303272247,
-0.03275518864393234,
0.041176751255989075,
-0.025837821885943413,
0.013786299154162407,
0.036943696439266205,
0.0926583781838417,
0.0022341832518577576,
-0.024559261277318,
-0.03390303999185562,
0.027895987033843994,
-0.08746868371963501,
0.019978918135166168,
-0.03015454113483429,
-0.04918050765991211,
-0.027265707030892372,
-0.04610785096883774,
-0.005423176102340221,
-0.005490831099450588,
-0.02344563975930214,
-0.05099692940711975,
-0.007170704193413258,
0.007696208544075489,
0.0073341745883226395,
-0.06731156259775162,
0.009514926001429558,
-0.0396672748029232,
0.0868293046951294,
-0.11691037565469742,
-0.09088712930679321,
0.015530434437096119
] | 14,346 |
14,349 |
Swift/MAXI/Fermi detection of strong X-ray activity from 2S 1417-624
|
Mangal Hazra (MCC), Sabyasachi Pal (MCC/ICSP), Manoj Mandal (MCC) and Bikram Bhunia (MCC)
|
The X-ray pulsar 2S 1417-624 was discovered with SAS-3 in 1978 (Apparao et al., 1980, A&A, 89, 249). The source went through several outbursts after its discovery (ATel #52, #2275, #11479, #11569, #12841). The spin period of the X-ray pulsar was ~17.5 s and the magnetic field was ~1012 G during the 2018 outburst (Doroshenko et al., 2019, MNRAS, 491, 1851).
From the second week of January, the flux of the source in hard X-ray started to increase and reached a maximum daily average flux of 0.08±0.007 Crab on MJD 59239 (25th January 2021) as measured by Swift/BAT (15-50 keV). The X-ray flaring activity was also detected by MAXI/GSC (2-20 keV). The flux reached a maximum value of 0.02±0.002 Crab (2-20 keV) on MJD 59239 (25th January 2021).
The X-ray pulsed flux has also started to increase from MJD 59224 in Fermi/GBM (12-25 keV) and reached 0.17±0.014 keV/cm2/s on MJD 59233. The spin period is 17.36 s as measured by Fermi/GBM on MJD 59233. The spin frequency has started to increase at a rate of 5.3×10-13 Hz/s.
We encourage further multi-wavelength observations.
This research has made use of the MAXI data provided by RIKEN, JAXA, and the MAXI team.
|
2021-01-26 19:59:00
|
x-ray,pulsar,transient,request for observations
|
2021-01-26
|
19:59:00
| 1,165 |
[
-0.09533683210611343,
-0.017824163660407066,
-0.08596734702587128,
-0.00560130225494504,
0.019232578575611115,
-0.06269890069961548,
-0.011291898787021637,
0.03689887002110481,
-0.03503869101405144,
-0.00048355982289649546,
-0.0023537972010672092,
-0.025177113711833954,
0.09709366410970688,
-0.015104270540177822,
-0.02302008494734764,
0.03661366552114487,
-0.051551129668951035,
-0.11404561251401901,
0.046084560453891754,
0.0682625025510788,
-0.0025205162819474936,
0.03407583758234978,
-0.0808841735124588,
0.014487851411104202,
-0.029676267877221107,
0.030372602865099907,
-0.015044869855046272,
-0.1700436919927597,
-0.018547551706433296,
-0.053170740604400635,
-0.01666104607284069,
0.06300009042024612,
-0.009341769851744175,
0.0034495992586016655,
-0.0007215826772153378,
0.03944966569542885,
-0.03545892611145973,
-0.005920041352510452,
-0.03878580778837204,
-0.012326642870903015,
-0.06432721763849258,
-0.015911433845758438,
0.026391660794615746,
0.0010408664820715785,
-0.06646537035703659,
-0.003942166920751333,
0.09020892530679703,
-0.04960934817790985,
0.016828440129756927,
0.04958716407418251,
-0.007731285877525806,
-0.003170423209667206,
-0.012405162677168846,
-0.02093616873025894,
0.0898239016532898,
-0.08232198655605316,
-0.09840306639671326,
-0.06619009375572205,
0.015433150343596935,
-0.042770154774188995,
0.02633773721754551,
0.056613657623529434,
0.019628101959824562,
0.002220777329057455,
0.040450502187013626,
-0.03253891319036484,
0.009350854903459549,
-0.047432493418455124,
0.013457139022648335,
0.049176257103681564,
0.06557377427816391,
0.04455239325761795,
-0.06308546662330627,
-0.09660746157169342,
-0.023498812690377235,
0.03633442148566246,
0.10729475319385529,
-0.03125051409006119,
0.016016894951462746,
-0.10074380785226822,
-0.06894445419311523,
0.018321499228477478,
-0.014215504750609398,
-0.015343246050179005,
-0.02739841304719448,
0.07845161110162735,
-0.0429321825504303,
0.06330397725105286,
-0.03378622978925705,
0.09610404074192047,
0.15059706568717957,
0.051555175334215164,
-0.06893357634544373,
-0.005406550131738186,
0.09382178634405136,
-0.003951574210077524,
0.04917532950639725,
0.038067739456892014,
0.06150797754526138,
-0.018933583050966263,
0.05183854326605797,
0.015796352177858353,
-0.05253716558218002,
0.028628090396523476,
-0.0535283088684082,
-0.11083382368087769,
0.03277330473065376,
0.06126204505562782,
-0.0744820237159729,
0.03086995519697666,
-0.0003750571049749851,
0.043225087225437164,
-0.006554263643920422,
-0.03673403337597847,
0.037085067480802536,
0.0560266450047493,
0.0497514083981514,
-0.020360494032502174,
-0.05150964856147766,
-0.021944349631667137,
-0.01058151200413704,
0.029888547956943512,
-0.039994314312934875,
0.06507328897714615,
-0.00401580473408103,
-0.014000087045133114,
-0.048754919320344925,
3.557958015736083e-33,
-0.005834850948303938,
0.04828052222728729,
0.02447415143251419,
-0.01808643527328968,
-0.0845131129026413,
-0.01115519180893898,
0.012653063982725143,
0.04181760922074318,
0.0817047506570816,
0.05559253320097923,
-0.06697095185518265,
0.07242317497730255,
0.012508098036050797,
-0.11524325609207153,
-0.04278076812624931,
-0.08617950230836868,
0.0022381662856787443,
0.021872354671359062,
-0.10674973577260971,
-0.005245397798717022,
-0.000413790374295786,
-0.04114612564444542,
-0.06711256504058838,
-0.004999573342502117,
-0.001758313155733049,
0.09590505808591843,
0.0727248266339302,
-0.0442560538649559,
-0.056373462080955505,
0.023253584280610085,
0.01119204517453909,
-0.03832973167300224,
-0.006707563530653715,
0.07690973579883575,
0.003116947365924716,
-0.015704233199357986,
-0.03224951773881912,
0.021224241703748703,
-0.06152551993727684,
0.004046203568577766,
0.111868716776371,
-0.040137533098459244,
-0.06666908413171768,
0.007506308611482382,
0.0607394315302372,
0.013192647136747837,
-0.06220141425728798,
0.016298681497573853,
-0.02608245052397251,
-0.039792176336050034,
0.025112152099609375,
0.053448792546987534,
-0.02468637377023697,
0.010064990259706974,
0.10587239265441895,
0.07766596227884293,
0.01844264194369316,
-0.022073211148381233,
-0.03503961116075516,
0.08435361832380295,
0.07251925766468048,
0.020925423130393028,
0.01793220452964306,
0.053969606757164,
-0.0134878596290946,
0.029788048937916756,
0.0018499498255550861,
-0.008110636845231056,
-0.05384238064289093,
0.07022783160209656,
-0.02501089498400688,
0.0007702108123339713,
0.04501884803175926,
-0.07315146923065186,
0.07461529970169067,
-0.052523307502269745,
-0.034128207713365555,
0.06339007616043091,
-0.015376188792288303,
0.07186815142631531,
-0.06651277840137482,
-0.01562727615237236,
0.08490590751171112,
-0.06781952828168869,
-0.08418025821447372,
0.07081162929534912,
0.04520942643284798,
0.020057976245880127,
-0.010871734470129013,
0.05834728106856346,
-0.002079328056424856,
-0.050861895084381104,
0.015855729579925537,
-0.0546409972012043,
-0.0654069185256958,
-4.088124702398151e-33,
-0.0546976737678051,
-0.06776142120361328,
0.04974023252725601,
0.04629221558570862,
-0.008512313477694988,
0.011940290220081806,
0.03295651823282242,
0.08217594772577286,
-0.015120311640202999,
-0.05467365309596062,
0.054877132177352905,
0.0834832638502121,
-0.051144491881132126,
-0.0418018102645874,
0.0659727156162262,
0.04897225648164749,
0.05121823027729988,
-0.0034699549432843924,
-0.08005263656377792,
-0.00432649115100503,
-0.011768626049160957,
0.047489818185567856,
0.07341332733631134,
-0.036138154566287994,
-0.023949267342686653,
0.02369309775531292,
0.05015529319643974,
-0.022467324510216713,
0.03354907035827637,
0.03853393346071243,
-0.017367973923683167,
-0.007712771184742451,
0.022593790665268898,
0.055867891758680344,
-0.08071110397577286,
-0.04662010818719864,
-0.0015220422064885497,
0.05775083601474762,
-0.03343109041452408,
-0.02976178377866745,
-0.005767059046775103,
0.12967635691165924,
-0.0027833236381411552,
0.04525698348879814,
-0.05308954045176506,
0.09349633008241653,
0.03873693197965622,
0.04255612567067146,
0.07490185648202896,
-0.01378446351736784,
0.034635279327631,
-0.055640436708927155,
0.060285501182079315,
0.020785417407751083,
0.010558436624705791,
0.02538137324154377,
-0.053945112973451614,
-0.02068176120519638,
0.03286371007561684,
-0.034332528710365295,
-0.022128667682409286,
-0.05451389029622078,
-0.032675303518772125,
-0.06247260048985481,
0.04010952636599541,
-0.08404562622308731,
0.02220029942691326,
0.02466234192252159,
0.0002581639273557812,
-0.013202662579715252,
0.05983368307352066,
-0.042118433862924576,
-0.06171884015202522,
0.01830216310918331,
-0.03357283025979996,
0.07137226313352585,
0.002740326104685664,
-0.07121586054563522,
0.049547966569662094,
-0.044835444539785385,
-0.06098909676074982,
0.09836425632238388,
0.0031647563446313143,
-0.036008816212415695,
0.07303519546985626,
0.03250592574477196,
-0.030071428045630455,
-0.024383505806326866,
-0.0027593367267400026,
-0.08074305951595306,
-0.06020240858197212,
-0.01637583039700985,
-0.0027242135256528854,
-0.028170635923743248,
0.03737471625208855,
-4.8068521607547154e-8,
-0.03378341346979141,
0.037071291357278824,
-0.04239296540617943,
0.022618098184466362,
0.09746147692203522,
-0.005990622565150261,
-0.06097622960805893,
0.03309740126132965,
0.07654459029436111,
0.002707435516640544,
-0.007995462976396084,
-0.027995513752102852,
0.08949039876461029,
-0.04599757492542267,
-0.006784135941416025,
-0.029555968940258026,
0.029856329783797264,
-0.07161978632211685,
0.022370630875229836,
-0.0630645826458931,
0.020264117047190666,
0.0029292877297848463,
0.016219284385442734,
-0.0478404201567173,
-0.02712857536971569,
0.06286408007144928,
0.020168088376522064,
-0.03476627543568611,
0.0753878653049469,
-0.031219040974974632,
-0.06214063614606857,
-0.025535784661769867,
0.008024876937270164,
-0.027786053717136383,
0.002258033724501729,
0.08316022902727127,
-0.04077106714248657,
0.014450839720666409,
0.07563073933124542,
0.08761227875947952,
-0.028107428923249245,
-0.045597270131111145,
0.08379824459552765,
0.018259357661008835,
-0.1133410856127739,
0.013191267848014832,
-0.0717862993478775,
-0.048126861453056335,
-0.004510222934186459,
-0.0644606277346611,
0.02185177244246006,
0.019239014014601707,
0.07283691316843033,
-0.10756266117095947,
0.005093392916023731,
0.06963896006345749,
-0.0066727823577821255,
-0.0697517842054367,
0.006753675639629364,
0.015462171286344528,
0.05207180976867676,
-0.017743101343512535,
-0.11555708944797516,
0.04905581474304199
] | 14,347 |
14,350 |
Swift follow-up observations of BL Lacertae during a new flaring activity
|
Filippo D'Ammando (INAF-IRA Bologna)
|
After the recent optical and gamma-ray flaring activity of the blazar BL Lacertae (ATel #14318, #14328, #14330, #14334), significant variability in brightness has been observed in X-rays by NICER during 2021 January 18-22 (ATel #14342). Following this activity, Swift target of opportunity observations were performed on 2021 January 25.
Swift-XRT data were taken in Photon Counting mode for a net exposure of about 1.0 ksec. Preliminary analysis has been performed fitting the 0.3-10 keV X-ray spectra with an absorbed power-law with a photon index of 2.25 +/- 0.11 and the Galactic absorption corresponding to a hydrogen column density of n_H = 2.7 x 10^21 cm^-2, in agreement with the value obtained by the analysis of the joint NICER and NuSTAR spectrum obtained on 2020 October 11-12 (ATel #14096). The X-ray (0.3-10 keV) flux observed (i.e. not corrected for Galactic extinction) is (1.4+/-0.1) x10^-10 erg cm^-2 s^-1, a factor of 2.5 lower than the historical maximum observed in X-rays on 2020 October 6 (ATel #14069) but higher than all other fluxes observed for this source so far (ATel #14065).
Swift-UVOT observations performed on 2021 January 25 found BL Lacertae at a similar brightness level with respect to the values observed on 2020 October 5 and 6 in the optical filters, and approximately 0.4-0.5 magnitude less bright in the UV filters. The observed magnitudes are V = 12.39 +/- 0.04, B = 13.19 +/- 0.05, U = 12.67 +/- 0.05, W1 = 13.26 +/- 0.06, M2 = 13.91 +/- 0.06, and W2 = 13.91 +/- 0.06.
In consideration of the ongoing activity of this source, confirmed also by the Swift observations, we encourage further multi-wavelength observations.
We would like to thank the Swift Team for making these observations possible, in particular K. L. Page, as the Swift Observatory Duty Scientist.
|
2021-01-27 01:38:00
|
optical,ultra-violet,x-ray,gamma ray,agn,black hole,blazar,quasar
|
2021-01-27
|
01:38:00
| 1,812 |
[
-0.019749747589230537,
-0.0494263656437397,
0.009161429479718208,
0.07844089716672897,
-0.015515693463385105,
-0.027361765503883362,
0.00972546637058258,
0.0580802857875824,
0.032195333391427994,
-0.012912041507661343,
-0.00471431203186512,
-0.05101316049695015,
0.016203757375478745,
0.006704061757773161,
-0.010212766006588936,
0.019385604187846184,
0.019604617729783058,
-0.11686233431100845,
-0.06517668813467026,
0.05889470875263214,
0.013166788034141064,
0.04903293773531914,
0.03609421104192734,
0.025335120037198067,
0.003216622630134225,
-0.043235667049884796,
-0.026833482086658478,
-0.06088138744235039,
0.004388207104057074,
-0.04509519785642624,
-0.011450023390352726,
0.043944090604782104,
0.01767481304705143,
0.024792134761810303,
0.06902001053094864,
-0.06420883536338806,
0.03710980340838432,
-0.06648044288158417,
-0.05265022814273834,
0.016562914475798607,
-0.05358684062957764,
-0.10565174371004105,
-0.02687831036746502,
0.03250109776854515,
-0.047711148858070374,
-0.05056138336658478,
-0.012619049288332462,
-0.06313300132751465,
-0.050783880054950714,
0.034153055399656296,
0.036627497524023056,
0.05453937500715256,
-0.028625765815377235,
0.009281843900680542,
0.11496803164482117,
0.06818219274282455,
-0.07841785252094269,
-0.064996138215065,
0.06005505099892616,
0.00329032726585865,
0.026282943785190582,
0.050040166825056076,
-0.04936666041612625,
-0.006014165934175253,
-0.029800590127706528,
-0.011630287393927574,
0.010615146718919277,
-0.06429167836904526,
0.006339001003652811,
-0.03407438471913338,
0.015965068712830544,
-0.03700956329703331,
-0.02169707417488098,
-0.07074900716543198,
-0.06231634318828583,
0.028659455478191376,
0.14843931794166565,
-0.04526781290769577,
0.027828462421894073,
-0.08377762883901596,
0.023293694481253624,
0.05695147439837456,
-0.03371347114443779,
0.01317893248051405,
-0.0287010557949543,
-0.0020713878329843283,
-0.021304497495293617,
0.07406356930732727,
-0.03114720620214939,
0.08333351463079453,
0.017920877784490585,
-0.0026295692659914494,
-0.03519025817513466,
-0.03588177636265755,
-0.020674388855695724,
0.03891933336853981,
0.08516376465559006,
-0.023034311830997467,
0.08064919710159302,
0.035795971751213074,
0.008855890482664108,
-0.022196121513843536,
-0.06667015701532364,
0.10830928385257721,
-0.08053464442491531,
-0.026130856946110725,
0.0689583346247673,
0.06597409397363663,
-0.04889633134007454,
-0.026497194543480873,
0.10450852662324905,
-0.07465006411075592,
-0.04338621720671654,
-0.010374428704380989,
-0.013558708131313324,
0.0024385720025748014,
0.04723192751407623,
0.022458497434854507,
-0.06307892501354218,
-0.058300428092479706,
0.014804190024733543,
0.0043737501837313175,
0.027248356491327286,
0.03753264248371124,
-0.009712654165923595,
-0.019886057823896408,
-0.00623027328401804,
4.754285432532803e-33,
0.034860555082559586,
0.021956421434879303,
-0.05322670936584473,
-0.039251573383808136,
-0.06468047201633453,
-0.04577511548995972,
0.013424837030470371,
0.05403697118163109,
-0.05046309903264046,
0.0029994354117661715,
-0.04900885000824928,
0.06050760671496391,
-0.0036974067334085703,
-0.07938683778047562,
-0.025954049080610275,
0.015932228416204453,
0.049023646861314774,
0.07501697540283203,
-0.11241788417100906,
0.04322785139083862,
0.016668299213051796,
-0.027444370090961456,
-0.039249565452337265,
0.009553596377372742,
0.02300778031349182,
0.06687464565038681,
-0.018222447484731674,
-0.0650605857372284,
0.009635191410779953,
0.015825115144252777,
0.02836768701672554,
0.019991742447018623,
-0.006899177096784115,
0.08774413913488388,
-0.04742327332496643,
-0.053624026477336884,
0.0012348549207672477,
0.05393019691109657,
-0.026581617072224617,
-0.023400545120239258,
0.01979886367917061,
0.11455144733190536,
0.014181703329086304,
-0.000799909234046936,
0.033113326877355576,
0.02771637588739395,
0.006880426779389381,
-0.06340041011571884,
0.03970412537455559,
0.03618914261460304,
-0.02768932469189167,
-0.05544443428516388,
0.004497096873819828,
0.04826506972312927,
0.0854194313287735,
0.042100466787815094,
-0.00920519046485424,
0.03465205803513527,
0.018545137718319893,
0.044677428901195526,
0.0328395813703537,
0.0030010375194251537,
0.03455283120274544,
-0.0003857818664982915,
0.03101644478738308,
0.05685890093445778,
-0.02104930952191353,
-0.007613185793161392,
-0.08492636680603027,
0.019344905391335487,
-0.08847761899232864,
0.06530258059501648,
0.07212623953819275,
-0.08533037453889847,
0.09119028598070145,
-0.03821006417274475,
0.0017789294943213463,
0.035188671201467514,
-0.0020253111142665148,
0.03462018445134163,
-0.0216613058000803,
-0.005474066361784935,
0.14505255222320557,
-0.03735232725739479,
-0.08748265355825424,
0.01651115156710148,
-0.016563568264245987,
0.019569233059883118,
-0.006822013296186924,
0.008333173580467701,
0.05068472400307655,
-0.06571958214044571,
0.014809920452535152,
-0.07269442826509476,
-0.11314055323600769,
-4.870022402262858e-33,
0.0634007677435875,
0.03405536338686943,
-0.02651336044073105,
0.019631683826446533,
-0.001830337569117546,
0.06788673251867294,
0.02522953599691391,
0.03805254399776459,
-0.01585356704890728,
-0.054720643907785416,
0.07094676792621613,
0.15429598093032837,
-0.06449372321367264,
-0.05979173630475998,
0.02707826718688011,
-0.04102223366498947,
0.03528228774666786,
0.01776299439370632,
-0.10524091124534607,
0.013904999010264874,
-0.047913454473018646,
0.019160538911819458,
0.03916502371430397,
-0.03997043892741203,
0.0014894615160301328,
0.016759419813752174,
0.09319736063480377,
-0.05416157469153404,
-0.03706679120659828,
-0.029523270204663277,
-0.03907954692840576,
0.026552539318799973,
-0.007633225992321968,
-0.009176785126328468,
0.04285016655921936,
-0.019563831388950348,
0.041322171688079834,
0.00393026415258646,
-0.13293498754501343,
0.02946500852704048,
0.008803283795714378,
0.14452706277370453,
-0.02630016766488552,
-0.03133248910307884,
-0.04868841916322708,
0.08170925080776215,
0.011400449089705944,
0.001724942703731358,
0.06816452741622925,
-0.04890415444970131,
0.044737499207258224,
-0.060519542545080185,
-0.018774475902318954,
0.09703472256660461,
-0.09336742013692856,
0.02010391652584076,
0.06628213077783585,
0.07780314236879349,
0.00952849444001913,
0.05271029844880104,
-0.008884390816092491,
-0.040924422442913055,
0.03523145243525505,
-0.0885608047246933,
0.011932151392102242,
-0.05761224031448364,
-0.012069548480212688,
0.07656038552522659,
-0.0019369670189917088,
-0.051194604486227036,
0.027694260701537132,
-0.15992659330368042,
-0.0435466431081295,
0.02035726234316826,
0.00822623074054718,
0.0024964739568531513,
0.001446396461687982,
-0.1443289816379547,
0.028786182403564453,
0.04248721897602081,
-0.024700744077563286,
0.05274910852313042,
0.0043677277863025665,
-0.017597833648324013,
0.11362612992525101,
-0.00009064752521226183,
-0.01223557349294424,
-0.018737128004431725,
-0.048352643847465515,
-0.05473686009645462,
-0.04118930548429489,
-0.04823143780231476,
0.033132005482912064,
-0.008047930896282196,
0.08672171086072922,
-5.6347758459196484e-8,
0.020578788593411446,
0.06312357634305954,
-0.04433893412351608,
0.056433822959661484,
0.048658277839422226,
-0.028934968635439873,
-0.048662323504686356,
0.019547980278730392,
0.08008350431919098,
0.02535237744450569,
0.05096794664859772,
-0.03621447831392288,
0.03404972702264786,
-0.0193592868745327,
-0.0035798107273876667,
0.020549725741147995,
0.01505290623754263,
-0.08213724195957184,
-0.009484922513365746,
0.02694639191031456,
0.01836566813290119,
-0.0402621291577816,
-0.00595853291451931,
-0.10728220641613007,
0.008391927927732468,
-0.007956543937325478,
-0.0268898606300354,
0.04621279984712601,
0.08990185707807541,
-0.04013204202055931,
-0.0055260853841900826,
0.007117119617760181,
0.029965054243803024,
0.056816909462213516,
-0.01702599786221981,
0.021381378173828125,
-0.03729172423481941,
0.024029690772294998,
0.03489190340042114,
0.10591559112071991,
-0.0166928693652153,
-0.10535481572151184,
0.02212703973054886,
0.03367624059319496,
-0.09570605307817459,
0.0291144922375679,
0.0003788404865190387,
-0.076352559030056,
-0.01119923684746027,
0.009266238659620285,
0.019082756713032722,
-0.034361518919467926,
-0.03746222332119942,
-0.10783110558986664,
-0.07881491631269455,
-0.0037672456819564104,
0.03768981248140335,
0.024703586474061012,
0.016241881996393204,
-0.015465297736227512,
0.10206237435340881,
-0.06970095634460449,
-0.11327381432056427,
-0.026452040299773216
] | 14,348 |
14,351 |
Detection of X-ray flaring activity from GX 339-4 using Swift
|
Sabyasachi Pal (MCC/ICSP), Manoj Mandal (MCC), Mangal Hazra (MCC), Debasish Saha (MCC) and Arnab Ghanta (MCC)
|
The black hole binary system GX 339-4 went through frequent outbursts every 2-3 years (ATel #944, #2380, #6649, #12287, #12322). Recently MeerKAT radio observations revealed enhanced activity from the source in radio wavelengths (ATel #14336) and the flux density of the source started to increase from the first week of January. We report the detection of hard X-ray flaring activity from GX 339-4 using Swift/BAT (15-50 keV). The average X-ray flux from Swift/BAT reached 72±9 mCrab on MJD 59239 (25 January 2021).
We study the energy spectrum of GX 339-4 using the Swift/XRT on MJD 59239.218 (obs id -- 00032898250). From the preliminary analysis, the spectrum (0.6-10 keV) can be fitted using XSPEC with model phabs×(powerlaw+diskbb). The estimated photon index is ~1.63 and the X-ray flux is 9.5×10-9 ergs/cm2/s in 1-10 keV.
MAXI/GSC (2-20 keV) also shows hints of enhanced X-ray activity. The flux has started to increase and reached a value of 33±14 mCrab (2-20 keV) on MJD 59240 (26th January 2021).
We encourage further multi-wavelength follow-up observations.
This research has made use of the MAXI data provided by RIKEN, JAXA, and the MAXI team.
|
2021-01-27 01:53:00
|
radio,x-ray,binary,black hole,transient,request for observations
|
2021-01-27
|
01:53:00
| 1,161 |
[
-0.02574598602950573,
-0.02285880781710148,
-0.019688116386532784,
0.0719727873802185,
0.027865968644618988,
-0.07892466336488724,
0.02578488551080227,
0.020396551117300987,
-0.032624050974845886,
-0.049311526119709015,
-0.03366434946656227,
-0.0919584184885025,
0.02405800297856331,
0.013015865348279476,
0.003166292095556855,
-0.00591216841712594,
0.04349856078624725,
-0.1280667930841446,
0.015128759667277336,
0.04538717120885849,
0.02158643677830696,
0.0903489887714386,
-0.07576560229063034,
0.025981836020946503,
0.06580179929733276,
-0.01845269836485386,
0.0032629116903990507,
-0.10527024418115616,
-0.027863148599863052,
-0.00928566139191389,
0.014528131112456322,
0.03339535742998123,
0.008892130106687546,
0.03789651766419411,
0.04615046828985214,
0.020913800224661827,
0.03685649484395981,
-0.014243063516914845,
-0.023271558806300163,
-0.04911767691373825,
-0.08462997525930405,
-0.04610060527920723,
0.04194823279976845,
0.02982637844979763,
-0.07557028532028198,
0.0000928321824176237,
0.023184677585959435,
-0.07610520720481873,
-0.028097718954086304,
0.026659855619072914,
0.06012209132313728,
-0.04688182473182678,
-0.014274783432483673,
0.0932888388633728,
0.12716004252433777,
0.00035632005892693996,
-0.11387228965759277,
-0.08019419014453888,
0.07624952495098114,
-0.01512188371270895,
-0.004040268715471029,
-0.009580500423908234,
-0.018372241407632828,
0.006177554838359356,
0.00956854596734047,
-0.02790052257478237,
0.01998637430369854,
-0.034319281578063965,
0.024838224053382874,
-0.044221337884664536,
0.05932515487074852,
0.052932847291231155,
0.0015295661287382245,
-0.10162125527858734,
-0.0374656617641449,
0.05787022039294243,
0.07371075451374054,
-0.03599340841174126,
0.08030965179204941,
-0.032198715955019,
-0.010154754854738712,
0.06571066379547119,
0.014281181618571281,
-0.0055345818400382996,
0.024918273091316223,
0.04115955904126167,
-0.01583743840456009,
0.07456140220165253,
-0.002322892192751169,
0.0440579354763031,
0.07318992912769318,
0.0664793848991394,
-0.056613489985466,
-0.01246698945760727,
0.054898396134376526,
-0.032256513833999634,
0.07512787729501724,
-0.06020474061369896,
0.048252373933792114,
0.04056907445192337,
0.005131707061082125,
-0.032786570489406586,
-0.024296794086694717,
0.08898767083883286,
-0.04611935093998909,
-0.06488248705863953,
0.01658649742603302,
0.0654626190662384,
-0.09119371324777603,
0.019033530727028847,
0.017980946227908134,
0.017648516222834587,
-0.05555808171629906,
-0.07346777617931366,
-0.005478282459080219,
0.052480973303318024,
0.014433721080422401,
0.06953737884759903,
-0.14735428988933563,
0.007234298624098301,
-0.06370993703603745,
-0.01170800905674696,
0.0038181778509169817,
0.05830951780080795,
0.03076694905757904,
-0.009813591837882996,
-0.034901998937129974,
6.147077260944283e-33,
0.015242699533700943,
0.053733233362436295,
-0.036728959530591965,
-0.04394900053739548,
-0.04254559800028801,
-0.014787382446229458,
-0.041419338434934616,
0.06956332921981812,
-0.022845173254609108,
0.05344392731785774,
-0.050321318209171295,
0.08253820985555649,
-0.009028255939483643,
-0.05999162793159485,
0.0017004588153213263,
-0.00846286304295063,
0.018983354791998863,
0.0008346162503585219,
-0.1339193433523178,
0.00801148172467947,
-0.0220524650067091,
-0.06710217148065567,
-0.015700535848736763,
-0.03476472571492195,
0.0002613480028230697,
0.10803946852684021,
0.051242802292108536,
-0.042844902724027634,
-0.02520410157740116,
0.03623172640800476,
-0.04144589230418205,
-0.02421557903289795,
-0.0036613973788917065,
0.05502185598015785,
-0.03796975687146187,
-0.009201232343912125,
-0.022155120968818665,
-0.012780155055224895,
-0.06664023548364639,
-0.016382908448576927,
-0.015470843762159348,
0.051891669631004333,
-0.04139392077922821,
-0.09148667752742767,
0.08248147368431091,
0.032367099076509476,
0.025847481563687325,
-0.06302744150161743,
-0.0002652808325365186,
0.02648429200053215,
-0.0015278521459549665,
-0.013634816743433475,
-0.050365302711725235,
0.04677244648337364,
0.08575165271759033,
0.05285487696528435,
0.0673101395368576,
-0.01009336020797491,
0.00047366926446557045,
0.09556793421506882,
0.02989848703145981,
-0.015180687420070171,
0.020031645894050598,
0.012290634214878082,
-0.027779001742601395,
0.03755299374461174,
-0.04140495881438255,
0.003967831376940012,
-0.03088575042784214,
0.08830338716506958,
-0.038554444909095764,
-0.026498084887862206,
0.09024989604949951,
-0.0662347823381424,
0.07790282368659973,
-0.015618544071912766,
0.0012810134794563055,
0.07358463108539581,
-0.04338311776518822,
0.08038648217916489,
-0.039125602692365646,
-0.04774697870016098,
0.06952404975891113,
-0.05157673358917236,
-0.08194994926452637,
0.03138060122728348,
-0.025216035544872284,
0.022274017333984375,
0.0023630806244909763,
0.011598745360970497,
0.011422047391533852,
-0.04694536700844765,
-0.005966725759208202,
-0.05132714658975601,
-0.10010139644145966,
-5.8819213675712845e-33,
0.012394288554787636,
0.017687944695353508,
0.01551514770835638,
0.019619666039943695,
-0.02042289823293686,
0.027608849108219147,
-0.004738104995340109,
0.0385354682803154,
-0.039579376578330994,
-0.09318932890892029,
0.00927791092544794,
0.08056260645389557,
-0.05699329078197479,
-0.005811512935906649,
0.03508708253502846,
-0.008621851913630962,
0.05217655003070831,
0.014758753590285778,
-0.06928014755249023,
-0.004698754288256168,
0.04051518440246582,
0.036492571234703064,
0.015867050737142563,
-0.11878380924463272,
0.012249750085175037,
0.010969485156238079,
0.08606036752462387,
0.009962894953787327,
0.0468670055270195,
0.004845825489610434,
-0.08035767078399658,
0.027718380093574524,
-0.011179505847394466,
0.01812439039349556,
0.03922777995467186,
-0.030933139845728874,
0.05319399759173393,
0.07582374662160873,
-0.07287156581878662,
-0.01071252953261137,
0.05065144598484039,
0.14826996624469757,
-0.016540445387363434,
0.058103252202272415,
-0.02402551658451557,
0.06367072463035583,
0.008043400011956692,
0.07632093876600266,
0.08899794518947601,
-0.06984647363424301,
0.018374672159552574,
-0.1486176699399948,
-0.030667776241898537,
0.05883385241031647,
-0.018743420019745827,
0.018021365627646446,
0.06375900655984879,
0.007483743596822023,
-0.04877839982509613,
-0.03282143548130989,
0.01434279140084982,
-0.022345351055264473,
0.04278075322508812,
-0.055400919169187546,
0.014036151580512524,
-0.0887988954782486,
0.03068430908024311,
0.02447241172194481,
0.000019673190763569437,
0.04628605395555496,
0.008160699158906937,
-0.10592220723628998,
-0.0535152442753315,
0.033389750868082047,
0.006369804497808218,
0.07916557043790817,
-0.027267126366496086,
-0.11167746782302856,
0.02986571192741394,
-0.011288688518106937,
0.014859652146697044,
0.05612926930189133,
0.047645390033721924,
0.03251761943101883,
0.11295235902070999,
0.03911202400922775,
-0.018976472318172455,
-0.04929593950510025,
0.02873571217060089,
-0.06412610411643982,
-0.10723254084587097,
0.06361337751150131,
-0.014352474361658096,
0.013430331833660603,
0.009357371367514133,
-5.587580886867727e-8,
-0.028317132964730263,
0.023504145443439484,
-0.034167565405368805,
0.008958131074905396,
0.057767339050769806,
0.009336872026324272,
-0.02795247919857502,
-0.0034468783996999264,
0.10322991013526917,
0.017108632251620293,
0.029522402212023735,
-0.06815323233604431,
0.028988001868128777,
-0.07489291578531265,
-0.0013386388309299946,
-0.0360560268163681,
0.008359567262232304,
-0.08661128580570221,
-0.0013419565511867404,
0.0029086151625961065,
0.004891565069556236,
-0.01854177936911583,
0.0897035002708435,
-0.05856575444340706,
-0.025532644242048264,
-0.008325008675456047,
-0.0036076100077480078,
0.062290940433740616,
0.04638166353106499,
-0.01893630251288414,
-0.06092149019241333,
0.018830610439181328,
0.0055178995244205,
0.00046289185411296785,
-0.057958200573921204,
0.07354561239480972,
-0.04900490120053291,
0.041671670973300934,
0.06162318214774132,
0.1145339384675026,
-0.01885022036731243,
-0.02087373659014702,
0.02535424754023552,
0.009134993888437748,
-0.11485420167446136,
0.019591020420193672,
-0.04200934246182442,
-0.11121005564928055,
-0.0007580887759104371,
0.019031725823879242,
0.036680836230516434,
-0.026628581807017326,
-0.021805306896567345,
-0.07271634042263031,
-0.044763967394828796,
0.019493751227855682,
-0.03673615679144859,
-0.07087362557649612,
-0.011778351850807667,
-0.002524099312722683,
0.05156487226486206,
-0.09594183415174484,
-0.13449975848197937,
-0.021252285689115524
] | 14,349 |
14,352 |
Increased X-ray activity for the black hole binary GX 339-4 detected with NuSTAR and Swift/XRT
|
J. Garcia (Caltech), J. Tomsick (UC Berkeley), F. Harrison (Caltech), Riley Connors (Caltech), Guglielmo Mastroserio (Caltech)
|
The black hole binary GX 339-4 is an X-ray transient system typically displaying outbursts every 2-3 years. On 2021-01-04, radio observations with the MeerKAT radio telescope detected the source at 264 +/- 25 uJy (Atel #14336). We requested a Nuclear Spectroscopic Telescope Array (NuSTAR; Harrison et al. 2013, ApJ, 770, 103) Target of Opportunity observation and obtained a ~28 ks observation on 2021-01-23.
|
2021-01-27 02:16:00
|
radio,x-ray,binary,black hole,transient
|
2021-01-27
|
02:16:00
| 409 |
[
0.0210280604660511,
-0.0110372519120574,
0.0014775042654946446,
0.027996856719255447,
-0.02091822400689125,
-0.09329166263341904,
-0.029062461107969284,
0.01702350750565529,
-0.0032564413268119097,
-0.06768446415662766,
-0.042900364845991135,
-0.02043646201491356,
0.05041936784982681,
-0.0057606748305261135,
-0.03648946061730385,
0.018238646909594536,
0.011842840351164341,
-0.11744463443756104,
0.06767633557319641,
0.03570633754134178,
-0.013395681977272034,
0.07027830183506012,
-0.05019349232316017,
0.017735639587044716,
0.014732740819454193,
-0.016571806743741035,
0.013208040967583656,
-0.09535513818264008,
0.016064994037151337,
-0.0502304881811142,
-0.025431692600250244,
0.04665282741189003,
-0.00703479815274477,
0.0020613709930330515,
0.03623482957482338,
0.03582829236984253,
0.03895648568868637,
-0.04840235412120819,
-0.03013501688838005,
-0.04039681702852249,
-0.02941230498254299,
-0.05693869665265083,
-0.0022940789349377155,
0.0643378347158432,
-0.09826260805130005,
0.008241862058639526,
-0.0022539705969393253,
-0.06884576380252838,
-0.01988411881029606,
0.03787752240896225,
0.011483465321362019,
-0.019985897466540337,
0.041338153183460236,
0.03131236508488655,
0.12489151954650879,
-0.03355273976922035,
-0.08374086767435074,
-0.03190078213810921,
0.052601296454668045,
0.018081389367580414,
0.07571572065353394,
-0.03276972472667694,
-0.018190978094935417,
-0.014804328791797161,
0.03017561510205269,
0.03793271631002426,
-0.006593781057745218,
-0.04401565343141556,
0.017576914280653,
0.0026945823337882757,
0.029363347217440605,
0.068992480635643,
-0.008207191713154316,
-0.07688295096158981,
-0.018197668716311455,
0.057085588574409485,
0.06969327479600906,
-0.03464023396372795,
0.0955112874507904,
0.015260565094649792,
-0.015316272154450417,
0.04767807945609093,
0.004646372981369495,
-0.06193111836910248,
-0.01700274646282196,
0.0008308010292239487,
-0.042604293674230576,
0.06183341518044472,
0.023822592571377754,
0.049551066011190414,
0.017690761014819145,
0.01825515180826187,
-0.05759349465370178,
-0.06767509132623672,
0.07220515608787537,
-0.06204525753855705,
0.037965886294841766,
-0.08426247537136078,
0.08369530737400055,
0.026067929342389107,
0.04230935871601105,
-0.004023244138807058,
-0.031458400189876556,
0.10606876015663147,
-0.05888096243143082,
-0.023636281490325928,
0.010333765298128128,
0.038124606013298035,
-0.1197495236992836,
0.012438641861081123,
0.010407524183392525,
0.038718000054359436,
-0.013728061690926552,
-0.11796830594539642,
-0.06740564107894897,
0.03561781719326973,
-0.004093308001756668,
0.09925689548254013,
-0.058039888739585876,
-0.048425737768411636,
-0.04643530398607254,
0.0117993438616395,
-0.03838125616312027,
0.050073396414518356,
0.007411406375467777,
0.004729879088699818,
-0.09301774203777313,
2.831739442507997e-33,
0.014765235595405102,
0.06501756608486176,
-0.026929650455713272,
0.000037953537685098127,
-0.017289847135543823,
-0.00674898037686944,
-0.01199154369533062,
0.041580043733119965,
-0.04941222816705704,
0.023126857355237007,
-0.021751681342720985,
0.011187797412276268,
0.025858698412775993,
-0.007668288424611092,
0.005817459896206856,
-0.04788306728005409,
0.06709598749876022,
0.06733951717615128,
-0.12847691774368286,
0.037370044738054276,
-0.015966782346367836,
-0.04343027248978615,
-0.05067580193281174,
-0.03313831239938736,
0.013952396810054779,
0.12285041809082031,
0.021901994943618774,
-0.016317686066031456,
-0.04302456974983215,
-0.002374740084633231,
-0.03595029562711716,
0.010055381804704666,
-0.017668521031737328,
0.05030971020460129,
-0.0069493199698626995,
-0.04734354093670845,
-0.028272347524762154,
-0.0007195582147687674,
-0.03320978581905365,
-0.019836856052279472,
0.018045959994196892,
0.05216321349143982,
-0.017039602622389793,
-0.06531762331724167,
0.07516096532344818,
0.007416779175400734,
0.015405598096549511,
-0.03346071392297745,
0.05754704773426056,
0.019926398992538452,
0.019107092171907425,
0.02071123756468296,
-0.10292605310678482,
-0.014961334876716137,
0.03108612447977066,
0.01952689327299595,
0.03007473424077034,
-0.004632900469005108,
-0.03353949263691902,
0.07521932572126389,
0.046152278780937195,
0.0029117234516888857,
0.0008657065918669105,
0.002123945625498891,
-0.03864460065960884,
0.08637342602014542,
-0.006592517718672752,
-0.007690428756177425,
-0.022753983736038208,
0.1386743187904358,
-0.06568709760904312,
0.01600174605846405,
0.11657930910587311,
-0.11062858998775482,
0.0586254708468914,
-0.023389682173728943,
-0.0022140205837786198,
0.05476430431008339,
0.03611540049314499,
0.02552749216556549,
-0.019893845543265343,
-0.10309501737356186,
0.04003696143627167,
-0.05729591101408005,
-0.09840735793113708,
0.05290663614869118,
-0.014048476703464985,
0.05046449601650238,
0.05095406994223595,
0.03682398423552513,
0.007778123486787081,
-0.049617864191532135,
-0.057341333478689194,
0.020306000486016273,
-0.09353307634592056,
-4.295693127524366e-33,
0.027774546295404434,
0.041947755962610245,
0.056503716856241226,
0.014862590469419956,
-0.01543034054338932,
0.02532506361603737,
-0.0040058051235973835,
0.014182265847921371,
-0.06954480707645416,
-0.06347575783729553,
0.03024386800825596,
0.0978284627199173,
-0.04112955555319786,
0.01769714616239071,
-0.027050262317061424,
0.0020156437531113625,
0.03972870483994484,
-0.029393326491117477,
-0.07283936440944672,
-0.04054740443825722,
0.07650113850831985,
0.07002925127744675,
-0.0003470754891168326,
-0.0964193046092987,
-0.006580751854926348,
-0.028481099754571915,
0.10415998101234436,
-0.0021728931460529566,
0.029083887115120888,
-0.02158217318356037,
-0.09819675236940384,
0.012176104821264744,
0.008752889931201935,
0.003608202561736107,
0.08112181723117828,
-0.03602680191397667,
0.02602040395140648,
0.04814109206199646,
-0.0749068409204483,
0.002559835324063897,
0.010512498207390308,
0.14903151988983154,
-0.02244153991341591,
0.10077133029699326,
0.004129686392843723,
0.04834149405360222,
0.03972012549638748,
0.09137666970491409,
0.0931868702173233,
-0.03894568234682083,
-0.015591859817504883,
-0.09391587972640991,
-0.012981334701180458,
0.05325138196349144,
-0.03075251169502735,
0.029885144904255867,
0.0037682910915464163,
-0.0240462739020586,
0.012972547672688961,
0.044179994612932205,
-0.02946130745112896,
-0.0084227891638875,
0.04454444721341133,
-0.027146853506565094,
0.03706706315279007,
-0.06540914624929428,
-0.0014728131936863065,
0.029587559401988983,
-0.02188865840435028,
0.04824056476354599,
0.01357776764780283,
-0.09026586264371872,
-0.03587532415986061,
0.013952381908893585,
0.024983597919344902,
0.06853640824556351,
-0.037932537496089935,
-0.09977543354034424,
0.017400821670889854,
-0.008938039653003216,
-0.01858895644545555,
0.030752893537282944,
0.027620820328593254,
0.054686617106199265,
0.10854843258857727,
0.0579252615571022,
-0.008727648295462132,
-0.04725103825330734,
0.028865991160273552,
-0.044121041893959045,
-0.09138321131467819,
0.05505235120654106,
-0.03845982626080513,
0.011393490247428417,
0.020894531160593033,
-4.981592738317886e-8,
0.0030949870124459267,
0.06456709653139114,
-0.08967017382383347,
0.009183546528220177,
0.02961454913020134,
-0.048561953008174896,
-0.033262379467487335,
0.0348975695669651,
0.06016625091433525,
0.027168262749910355,
0.0032242918387055397,
-0.04417166858911514,
0.014153043739497662,
-0.09859802573919296,
0.03483543545007706,
-0.01392287015914917,
-0.0013696161331608891,
-0.06744486838579178,
-0.004604216665029526,
0.02248937077820301,
0.005025114864110947,
-0.017295338213443756,
0.13840030133724213,
-0.06799530237913132,
-0.05045592784881592,
0.00815535243600607,
0.02377767115831375,
0.11439350247383118,
0.0323648601770401,
0.003494331380352378,
-0.03040548972785473,
0.02983390912413597,
-0.024188220500946045,
-0.04321427270770073,
-0.029889225959777832,
0.05211661756038666,
-0.09058031439781189,
0.05297016352415085,
0.10995500534772873,
0.10922367125749588,
-0.0071984692476689816,
-0.051319193094968796,
0.024042263627052307,
0.04152042418718338,
-0.13652409613132477,
0.05516311153769493,
-0.10205741971731186,
-0.10884799808263779,
0.009911617264151573,
-0.005909035913646221,
0.0010259122354909778,
-0.001975275808945298,
-0.028858225792646408,
-0.053882140666246414,
-0.06141390651464462,
0.021698979660868645,
-0.011588199995458126,
-0.05428014323115349,
0.006611799355596304,
-0.021676501259207726,
0.05332811549305916,
-0.09237448871135712,
-0.09505457431077957,
-0.0633418932557106
] | 14,350 |
14,353 |
Multicolor-optical observations of the flat-spectrum radio quasar Ton 599 and quasar 3C279
|
R. Hosokawa, K. L. Murata, M. Niwano, S. Wang, R. Adachi, F. Ogawa, N. Nakamura, N. Ito, S. Ogata, H. Takamatsu, H. Hara, Y. Yatsu, and N. Kawai (TokyoTech) report on behalf of the MITSuME collaboration
|
We monitor the flat-spectrum radio quasar Ton 599 with three optical bands (g', Rc, and Ic) using the MITSuME 50 cm Telescopes at Akeno Observatory and Okayama Astrophysical Observatory in Japan. We found that the optical brightness increased from g' =17.0+/- 0.1, Rc=16.7+/- 0.1, Ic=16.3+/-0.1 on December 21, 2020 (MJD 59204.75) with g ~ 0.063 mag/day, Rc ~ 0.062 mag/day and Ic ~ 0.061 mag/day, and reached to g' =15.2+/-0.1, Rc=14.9+/-0.1, Ic=14.5+/-0.1 on January 20, 2021 (MJD 59234.72). We also monitor the quasar 3C279, which was in the bright state in optical reported in ATel #14310. We found that the optical brightness increased from g' =15.8+/-0.1, Rc=15.3+/-0.1 Ic=14.9+/-0.1 on November 22, 2020 (MJD 59175.81) then reached the maximum g' =14.4+/-0.1 Rc=13.9+/-0.1, Ic=13.5+/-0.1 on January 09, 2021 (MJD 59223.78) In the last few nights, our data shows that the brightness seems to decrease to g' =15.0+/-0.1, Rc=14.6+/-0.1, Ic=14.1+/-0.1 on January 20, 2021 (MJD 59234.77) We used the PS1 catalog for flux calibration. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al., https://ui.adsabs.harvard.edu/abs/2020PASJ..tmp..249N/abstract; https://github.com/MNiwano/Eclaire).
|
2021-01-27 16:20:00
|
radio,optical,agn,quasar
|
2021-01-27
|
16:20:00
| 1,281 |
[
-0.06207878142595291,
-0.037100207060575485,
0.0035717752762138844,
0.03245548531413078,
-0.0018391504418104887,
-0.09673067182302475,
-0.033654578030109406,
0.08700679242610931,
-0.033300697803497314,
0.04945490136742592,
-0.01967303641140461,
-0.09805422276258469,
-0.009573244489729404,
-0.03420679271221161,
0.070702463388443,
0.014325170777738094,
0.0872766450047493,
-0.10979615151882172,
0.007713887374848127,
-0.03868537396192551,
-0.08226634562015533,
-0.011152489110827446,
-0.046957146376371384,
0.003780327970162034,
0.09832079708576202,
0.011868459172546864,
-0.04465706646442413,
-0.09872428327798843,
0.0015700643416494131,
-0.016822364181280136,
-0.0037270630709826946,
0.039325613528490067,
0.04718857258558273,
0.04028140753507614,
-0.016401365399360657,
-0.047646794468164444,
0.014698995277285576,
-0.0680624395608902,
-0.03232863172888756,
-0.006893075071275234,
-0.005906903184950352,
-0.02764815464615822,
0.027675678953528404,
-0.08629171550273895,
-0.059297237545251846,
-0.012625017203390598,
-0.021021954715251923,
-0.001461181091144681,
-0.08628635853528976,
-0.02237166464328766,
0.09834767878055573,
0.00768975168466568,
-0.03901854157447815,
0.05846833065152168,
0.018911290913820267,
0.07923942804336548,
-0.07111275941133499,
-0.059957776218652725,
0.09843040257692337,
0.03012976236641407,
-0.07742270827293396,
0.012931416742503643,
-0.042014241218566895,
-0.03992814943194389,
0.032775186002254486,
-0.04683220759034157,
-0.04816300794482231,
-0.07244012504816055,
-0.00633639469742775,
0.008893360383808613,
0.046888139098882675,
-0.021066326647996902,
0.019583208486437798,
-0.0648329108953476,
-0.002516493434086442,
0.058056093752384186,
0.08451716601848602,
0.007827850989997387,
0.04329151660203934,
-0.04488450661301613,
0.022152606397867203,
0.025600263848900795,
-0.005632289685308933,
0.007210033014416695,
-0.001095675164833665,
-0.043738607317209244,
0.004717289935797453,
0.019266832619905472,
-0.01122601330280304,
0.006414418108761311,
0.023999890312552452,
0.013929668813943863,
-0.11864502727985382,
-0.0061610545963048935,
-0.04702814295887947,
0.0035850568674504757,
0.02653862163424492,
-0.030143937095999718,
0.019542435184121132,
0.05115629732608795,
0.10980724543333054,
-0.020629318431019783,
-0.02897525765001774,
0.009994609281420708,
-0.08894096314907074,
0.04375740885734558,
0.07398239523172379,
0.06977126747369766,
-0.07872125506401062,
0.0593489333987236,
0.06352028995752335,
0.014081179164350033,
-0.014218074269592762,
-0.10564300417900085,
0.008456052280962467,
0.06544896215200424,
0.00661825854331255,
0.11892388015985489,
-0.14219306409358978,
0.026959305629134178,
-0.04421719163656235,
-0.03972138836979866,
0.025822889059782028,
0.08012186735868454,
0.044618308544158936,
0.004952841438353062,
0.030136195942759514,
2.3217277085167312e-33,
0.0361248254776001,
-0.014423029497265816,
-0.03293002024292946,
-0.06396757811307907,
0.001626226701773703,
0.009571370668709278,
-0.07687480002641678,
0.0744769424200058,
-0.06126371771097183,
-0.02825651317834854,
-0.03233310580253601,
0.04931214079260826,
-0.07818404585123062,
-0.06266992539167404,
0.0326102189719677,
-0.038931746035814285,
0.024889901280403137,
0.05349509045481682,
-0.04787563532590866,
0.023367183282971382,
-0.03031703643500805,
0.020272299647331238,
-0.04649540036916733,
0.024245435371994972,
0.07636082917451859,
0.10814440995454788,
0.053623322397470474,
0.02281646803021431,
-0.036958590149879456,
0.0037112210411578417,
0.0534181222319603,
-0.001968582859262824,
-0.00234350748360157,
0.0016852301778271794,
-0.07653991132974625,
-0.036501526832580566,
0.025331933051347733,
0.03690968453884125,
-0.0498848594725132,
0.0029732179827988148,
0.04121030122041702,
0.05170634761452675,
-0.0102978041395545,
0.003012677188962698,
0.03807254880666733,
0.02584593929350376,
0.012529251165688038,
-0.026488272473216057,
0.04472663253545761,
0.08947446197271347,
-0.06373883038759232,
-0.0834915041923523,
-0.05584728717803955,
0.05809447169303894,
0.07228317111730576,
0.053869884461164474,
0.02005513571202755,
-0.03653428703546524,
0.004031690768897533,
-0.02168308012187481,
0.04720474034547806,
0.001427932409569621,
0.005622543394565582,
-0.024580217897892,
-0.0273059643805027,
0.053304415196180344,
0.02827993594110012,
0.02451021783053875,
-0.05813688412308693,
0.057374902069568634,
0.0077978274784982204,
0.007843763567507267,
0.05662053823471069,
-0.011559726670384407,
0.11578932404518127,
-0.037082307040691376,
0.0010630035540089011,
0.10159561783075333,
0.000336001452524215,
0.019131824374198914,
-0.02038894221186638,
-0.01119952742010355,
0.04558560624718666,
-0.003640681505203247,
-0.03580281883478165,
0.03804756700992584,
-0.027181608602404594,
-0.01509034726768732,
-0.05181628838181496,
-0.06814590096473694,
0.05142727494239807,
0.031369782984256744,
0.005767547059804201,
-0.0209097508341074,
-0.1137823611497879,
-3.0712269473628527e-33,
0.08453692495822906,
0.021548280492424965,
-0.009149162098765373,
0.03642193228006363,
0.0012203255901113153,
-0.015522471629083157,
-0.011150969192385674,
0.06691150367259979,
-0.08297070860862732,
-0.03826069086790085,
0.06331880390644073,
-0.01568033918738365,
-0.08364154398441315,
-0.06657955050468445,
-0.016535088419914246,
-0.0941905528306961,
0.05407882109284401,
0.03397183120250702,
-0.07328954339027405,
0.02188139222562313,
0.025124413892626762,
-0.02885565161705017,
0.013930912129580975,
-0.07601678371429443,
-0.010997533798217773,
0.011421049013733864,
0.07989092171192169,
0.01196894608438015,
-0.04178715869784355,
0.010857697576284409,
-0.10877331346273422,
0.05274021625518799,
-0.02283039130270481,
-0.0372423455119133,
0.0918220579624176,
-0.012498116120696068,
0.03872937336564064,
0.01139422133564949,
-0.10504055768251419,
-0.030083024874329567,
-0.018421022221446037,
0.1598496288061142,
0.04406481981277466,
-0.01394580490887165,
-0.04024382308125496,
-0.04192067310214043,
0.01891407184302807,
0.08482614904642105,
-0.004642324056476355,
-0.08299006521701813,
0.06349329650402069,
-0.053202904760837555,
0.014276808127760887,
0.06827563047409058,
-0.05209575966000557,
0.05906742438673973,
0.05286119133234024,
0.0466148667037487,
-0.030039994046092033,
0.006570868194103241,
-0.02253136970102787,
-0.020701030269265175,
-0.046251457184553146,
-0.01803102344274521,
0.028703097254037857,
0.008593565784394741,
0.045204516500234604,
0.019779471680521965,
0.03381595388054848,
0.00782629381865263,
0.011591807939112186,
-0.1473204493522644,
-0.012386157177388668,
0.007847832515835762,
0.07166395336389542,
0.07318127900362015,
0.024061093106865883,
-0.05123607814311981,
0.06580109149217606,
0.015803223475813866,
-0.02127727121114731,
-0.024038568139076233,
0.02759653888642788,
0.010308058932423592,
0.022464122623205185,
-0.031973086297512054,
-0.0045532225631177425,
-0.09868811070919037,
-0.02655595727264881,
0.08902560919523239,
-0.0473252572119236,
0.05024339258670807,
-0.00678262859582901,
-0.00824919156730175,
0.01238710805773735,
-6.345467085111522e-8,
-0.010097471065819263,
-0.02684342861175537,
-0.06848669797182083,
0.06769557297229767,
0.06575120985507965,
-0.016092943027615547,
-0.0037498364690691233,
-0.028699174523353577,
-0.009059436619281769,
0.015551461838185787,
0.039800770580768585,
-0.0004360219172667712,
-0.014814433641731739,
0.027985835447907448,
0.09225765615701675,
-0.054583970457315445,
-0.03895232081413269,
-0.010976098477840424,
-0.006928454618901014,
0.07528948783874512,
-0.021653471514582634,
0.0701872929930687,
0.05644015222787857,
-0.11254345625638962,
0.009001992642879486,
0.10616778582334518,
-0.019043324515223503,
0.07473939657211304,
0.00445178709924221,
0.04786699265241623,
0.05138938128948212,
-0.004345793277025223,
0.021633191034197807,
-0.03132281452417374,
-0.02185988985002041,
-0.005087892524898052,
-0.07468468695878983,
-0.005488147493451834,
0.06982069462537766,
0.06031820550560951,
-0.055685050785541534,
0.016701722517609596,
0.004554229322820902,
0.036998871713876724,
-0.03478720411658287,
0.027611423283815384,
-0.0011772887082770467,
-0.035265643149614334,
-0.043507471680641174,
0.0023924096021801233,
-0.004537861794233322,
-0.009905844926834106,
-0.015577081590890884,
-0.16820937395095825,
-0.09877032041549683,
-0.08844701945781708,
0.08590874820947647,
-0.02724738046526909,
-0.07770968973636627,
0.027136633172631264,
0.05622350797057152,
-0.0724434107542038,
-0.09797340631484985,
0.017096426337957382
] | 14,351 |
14,354 |
INTEGRAL hard X-ray detection of a new outburst from GX339-4
|
V. Sguera (INAF-OAS Bologna, Italy), A. Bazzano, M. Fiocchi, L. Natalucci, P. Ubertini (INAF-IAPS Roma, Italy), A. J. Bird, V. Lepingwell (Univ. of Southampton, UK), A. Bodaghee (Georgia College & State University, USA), P. Charles (Univ. of Southampton), J. Chenevez (DTU Space, Denmark), E. Kuulkers (ESA/ESTEC, Noordwijk, The Netherlands), N. Masetti (INAF-OAS Bolonga, Italy)
|
Recent MeerKAT observations, from 4 January to 16 January, detected increased radio activity from the recurrent black hole X-ray transient GX339-4, suggesting that the source is likely entering into a new outburst phase (ATel #14336).
|
2021-01-27 17:32:00
|
radio,x-ray,binary,black hole,transient
|
2021-01-27
|
17:32:00
| 234 |
[
-0.022208373993635178,
-0.00714079337194562,
0.014460453763604164,
0.09571737796068192,
0.03084995225071907,
-0.07707613706588745,
0.006281170528382063,
0.02122921496629715,
0.04919882118701935,
-0.059826429933309555,
-0.03300342336297035,
-0.062423378229141235,
-0.006869977805763483,
0.05151113495230675,
-0.07208462059497833,
-0.005382917821407318,
-0.021853741258382797,
-0.11734639108181,
0.003684630384668708,
0.042811546474695206,
-0.07505728304386139,
0.06575026363134384,
-0.030545741319656372,
0.07435144484043121,
0.0517108328640461,
-0.03584353253245354,
-0.030530352145433426,
-0.03779551759362221,
-0.01760079897940159,
-0.023271329700946808,
-0.04408511146903038,
0.07165668159723282,
-0.004875218495726585,
0.0012108428636565804,
0.05518125370144844,
0.052675869315862656,
0.02032288908958435,
-0.03319272771477699,
-0.023597996681928635,
-0.016804298385977745,
-0.016827808693051338,
-0.07086137682199478,
0.021385297179222107,
0.018848657608032227,
-0.07981104403734207,
0.0038299509324133396,
0.017418138682842255,
-0.005451288539916277,
-0.07651620358228683,
0.016723796725273132,
0.01722622476518154,
-0.010248136706650257,
0.01824882999062538,
0.07631882280111313,
0.07090067118406296,
0.0022731598000973463,
-0.07536647468805313,
-0.03944340720772743,
0.02719063125550747,
-0.004580649547278881,
0.02312382683157921,
0.023711122572422028,
-0.01775147020816803,
-0.0009968099184334278,
0.030867962166666985,
0.04758281633257866,
-0.017085734754800797,
-0.035152822732925415,
0.0016350544756278396,
0.0706034004688263,
0.08587173372507095,
0.03382990136742592,
-0.05333423614501953,
-0.13056543469429016,
0.06238793581724167,
0.056977394968271255,
0.037356968969106674,
0.016680032014846802,
0.07943874597549438,
-0.018033893778920174,
0.05431899055838585,
0.012304197065532207,
-0.002344338223338127,
-0.062374383211135864,
0.0012571909464895725,
-0.007399965077638626,
0.004447647370398045,
0.022345436736941338,
0.004021842032670975,
0.00006469994696089998,
0.013637995347380638,
0.05345585197210312,
-0.052886396646499634,
-0.004234474152326584,
0.12308039516210556,
-0.031822722405195236,
0.04739677533507347,
-0.01762317307293415,
0.10220368951559067,
0.02602100372314453,
0.015089169144630432,
-0.04197089746594429,
-0.04165268316864967,
0.08294396847486496,
-0.03577650710940361,
-0.008997021242976189,
0.00009004785533761606,
0.04969922825694084,
-0.07192442566156387,
0.021481938660144806,
-0.05828214809298515,
-0.005468443967401981,
0.036790039390325546,
-0.11877205222845078,
-0.0342845693230629,
0.04967498034238815,
0.008214714005589485,
0.08050529658794403,
-0.12870720028877258,
0.013677924871444702,
-0.025812329724431038,
-0.036739200353622437,
-0.07019724696874619,
0.0249424260109663,
0.06787099689245224,
0.05513397231698036,
-0.10495176166296005,
3.453843746399784e-33,
0.08974006772041321,
0.04660152271389961,
-0.027288585901260376,
-0.00843633059412241,
-0.00044821816845797,
0.04372827336192131,
-0.08125148713588715,
0.05680188164114952,
-0.04947749897837639,
-0.0070114945992827415,
-0.06967504322528839,
0.025430981069803238,
0.01576695777475834,
-0.07144317030906677,
0.04237791523337364,
0.0002768792037386447,
0.04187531769275665,
0.06248696520924568,
-0.10271069407463074,
0.003401518799364567,
-0.03238051384687424,
-0.0399739108979702,
-0.08283320814371109,
-0.08443092554807663,
0.00809218268841505,
0.1083255335688591,
0.055348556488752365,
-0.012232677079737186,
-0.03587408736348152,
0.0011161009315401316,
-0.01949494332075119,
0.009898798540234566,
-0.06889717280864716,
0.02097662165760994,
-0.062036193907260895,
0.003750119125470519,
-0.03396785631775856,
-0.035200685262680054,
-0.05369901657104492,
-0.0067712110467255116,
0.05598100647330284,
0.02376694045960903,
-0.04562385752797127,
-0.06539661437273026,
0.11061013489961624,
-0.04513157531619072,
-0.014966793358325958,
-0.04340248554944992,
0.033224817365407944,
0.02702869288623333,
0.03952369466423988,
-0.00002275005135743413,
-0.12234196066856384,
0.020467421039938927,
0.04783431813120842,
0.07716500759124756,
0.03669644519686699,
0.0016371411038562655,
-0.03163757175207138,
0.08461010456085205,
0.049597397446632385,
-0.015599274076521397,
0.04206506907939911,
-0.01781591773033142,
0.02562655135989189,
-0.00024279803619720042,
-0.020246995612978935,
0.04078935086727142,
-0.09101589769124985,
0.05789585039019585,
0.0013200396206229925,
-0.05221765488386154,
0.06275978684425354,
-0.052468858659267426,
-0.0016072985017672181,
0.008237668313086033,
-0.006962640210986137,
0.0846405103802681,
0.04535478726029396,
0.04925907030701637,
-0.02580016478896141,
-0.06593789160251617,
0.087230384349823,
-0.07603169232606888,
-0.11838076263666153,
-0.005393520928919315,
0.009227770380675793,
0.018171370029449463,
0.020297177135944366,
-0.012990770861506462,
-0.020315462723374367,
-0.022198667749762535,
-0.03726157173514366,
-0.009602587670087814,
-0.1177852600812912,
-4.286828063409243e-33,
-0.027303248643875122,
-0.0016528894193470478,
0.020964570343494415,
-0.01136348769068718,
-0.0554693304002285,
-0.002636359306052327,
-0.04473014920949936,
0.042958009988069534,
-0.03727039694786072,
-0.0300286877900362,
-0.0015405931044369936,
0.06692369282245636,
0.0019569245632737875,
-0.03762233629822731,
-0.013208611868321896,
-0.03288102149963379,
0.09675540030002594,
0.04653044417500496,
-0.03322551026940346,
-0.011568996123969555,
0.05682961270213127,
-0.007032484281808138,
-0.00561654195189476,
-0.06750011444091797,
-0.05063917860388756,
0.008844730444252491,
0.15178024768829346,
0.024819504469633102,
-0.001024936675094068,
0.001368988654576242,
-0.09263108670711517,
0.023902012035250664,
-0.07253824174404144,
0.011389304883778095,
0.07764966040849686,
0.022334136068820953,
0.037504468113183975,
0.022695964202284813,
-0.06576233357191086,
-0.042817287147045135,
0.0016983621753752232,
0.1538967788219452,
-0.0038819676265120506,
0.10434407740831375,
0.04312048479914665,
0.026156950742006302,
0.038682375103235245,
0.11723177880048752,
0.047974005341529846,
-0.011836614459753036,
-0.011584008112549782,
-0.10643792897462845,
-0.00017362851940561086,
0.0555269755423069,
-0.03663530573248863,
0.07819654792547226,
0.007363409269601107,
-0.05036143958568573,
-0.024646136909723282,
-0.05215819552540779,
0.010177655145525932,
0.04202389344573021,
-0.00617619464173913,
-0.049228377640247345,
0.03248216584324837,
-0.08395593613386154,
-0.02284049801528454,
0.05305958911776543,
0.024414459243416786,
0.04024248570203781,
0.05258387699723244,
-0.05517955869436264,
-0.11857008934020996,
0.0639224499464035,
-0.002031399868428707,
0.07886075228452682,
-0.03302347660064697,
-0.0489954948425293,
0.04490022733807564,
-0.031467922031879425,
-0.004502755124121904,
-0.0030854023061692715,
0.06629669666290283,
0.005374377593398094,
0.08880913257598877,
0.023322807624936104,
-0.0076962620951235294,
-0.04780788719654083,
0.050368040800094604,
-0.061250220984220505,
-0.07571032643318176,
0.05557534098625183,
-0.049383413046598434,
0.027673780918121338,
0.007875015027821064,
-5.819160264763923e-8,
0.042604804039001465,
0.02802698127925396,
-0.03943970426917076,
0.03517947345972061,
0.06685344129800797,
-0.07893820106983185,
-0.04129108414053917,
0.026212869212031364,
0.0538734532892704,
0.0383886955678463,
-0.056348372250795364,
-0.04765620455145836,
0.02519955113530159,
-0.11876450479030609,
0.006836106069386005,
0.05360979959368706,
0.018315553665161133,
-0.08406268805265427,
-0.03784887120127678,
0.03692544624209404,
0.014583032578229904,
0.013582784682512283,
0.08601270616054535,
-0.05408834293484688,
0.00896617490798235,
-0.05124178156256676,
0.0617481954395771,
0.08192581683397293,
0.02394101768732071,
-0.03879180923104286,
-0.05472201853990555,
0.02353856712579727,
0.014416925609111786,
-0.029843373224139214,
-0.0605182945728302,
0.07582570612430573,
-0.019460348412394524,
0.031329452991485596,
0.022296655923128128,
0.0330178402364254,
-0.019317060708999634,
-0.04779858514666557,
0.051803212612867355,
0.009818904101848602,
-0.1122291162610054,
0.0018176886951550841,
-0.08560606837272644,
-0.10064534842967987,
0.04285762459039688,
-0.010248994454741478,
-0.011810760013759136,
-0.020142342895269394,
0.012426384724676609,
-0.059663061052560806,
-0.03324997425079346,
0.01844278909265995,
-0.010726812295615673,
-0.031963203102350235,
0.032099101692438126,
0.00573765067383647,
0.04017217457294464,
-0.06339605152606964,
-0.09967896342277527,
-0.0030093451496213675
] | 14,352 |
14,355 |
Independent Discovery and Additional Photometry of a Recent Nova in M33
|
J. Bryan (Georgetown, TX) and A. W. Shafter (SDSU)
|
We report the independent discovery and additional photometry of PNV J01332200+3033012 (aka XM48MZ, AT2021bl), a recent nova in M33 originally announced by Mi Zhang and Xing Gao at the Xingming Observatory.
Our observations were obtained in Georgetown, Texas, with a 40-cm f/10 Ritchey-Chretien telescope and ZWO cooled CMOS camera. Approximate R-band magnitudes of the nova were derived with Astrometrica software and UCAC4. The estimated uncertainties are ± 0.25 mag.
Our photometry shows that the nova was characterized by a t3 time of approximately 5 days, making it among the fastest novae. Consistent with its rapid decline, we note that a spectrum of the nova obtained by V. Karambelkar on behalf of the Zwicky Transient Facility collaboration reveals that the FWHM of the Hα emission line is of order 5000 km/s, suggesting that the nova is likely either a member of the broad-lined Fe II (Fe IIb) or He/N spectroscopic class in the scheme of Williams (1992).
|
2021-01-29 07:05:00
|
optical,nova,transient
|
2021-01-29
|
07:05:00
| 968 |
[
-0.10541438311338425,
-0.02616717293858528,
-0.027981558814644814,
0.07273197919130325,
-0.0018931012600660324,
-0.05598077178001404,
-0.049878042191267014,
0.005387218203395605,
0.010811054147779942,
-0.0050142742693424225,
-0.0227031372487545,
-0.042979467660188675,
-0.006597520317882299,
-0.06196999177336693,
0.01602592132985592,
-0.036030616611242294,
0.033882904797792435,
-0.07241993397474289,
-0.008111216127872467,
0.053452230989933014,
0.0032883640378713608,
0.03916649520397186,
-0.03287070617079735,
0.023216960951685905,
0.03671653941273689,
0.0030240637715905905,
-0.044755905866622925,
-0.010647188872098923,
0.040020037442445755,
0.0032558555249124765,
-0.02216048166155815,
0.02354421652853489,
-0.040475282818078995,
0.053432852029800415,
0.033569298684597015,
-0.04695499688386917,
0.055544663220644,
-0.07139625400304794,
-0.006691192276775837,
-0.0004784158372785896,
0.022090476006269455,
-0.0416632778942585,
-0.035460732877254486,
-0.01137815322726965,
0.019302528351545334,
0.006537540350109339,
0.026160670444369316,
-0.11338353157043457,
-0.0729183554649353,
0.0221030805259943,
-0.0190302524715662,
0.0022144208196550608,
0.041056856513023376,
0.04101892560720444,
0.04846247285604477,
0.038250282406806946,
-0.03293568640947342,
-0.03847852349281311,
0.062391363084316254,
0.034453924745321274,
0.02257499285042286,
-0.04203182831406593,
-0.06799744069576263,
-0.03772793710231781,
0.07176114618778229,
0.044478364288806915,
-0.013751788064837456,
-0.038813669234514236,
0.07124031335115433,
-0.07444504648447037,
-0.03716256096959114,
0.04264101758599281,
-0.03973252326250076,
-0.03002588450908661,
-0.031320929527282715,
0.020611582323908806,
0.2055843472480774,
0.01242849975824356,
0.10965388268232346,
-0.09443166106939316,
0.03126687929034233,
0.021386168897151947,
-0.009206549264490604,
0.005102850962430239,
-0.042866334319114685,
0.0074610537849366665,
-0.0846242606639862,
0.08259746432304382,
-0.022084316238760948,
0.043142713606357574,
-0.011800354346632957,
-0.004938086029142141,
-0.107831209897995,
-0.01488954946398735,
0.027960261330008507,
0.07569754868745804,
0.09484612196683884,
-0.05871427431702614,
0.10483565926551819,
0.06435766816139221,
0.06198051944375038,
0.018024157732725143,
-0.02872379682958126,
0.10396276414394379,
-0.03943387791514397,
0.056744419038295746,
0.06052505970001221,
0.028301488608121872,
-0.08518502116203308,
0.07014170289039612,
0.06923537701368332,
-0.009043779224157333,
-0.08524038642644882,
-0.09207752346992493,
0.04291548952460289,
-0.011773436330258846,
-0.06433787941932678,
0.0939972773194313,
-0.04546350985765457,
-0.04069249704480171,
-0.04490040987730026,
0.03737010434269905,
-0.027184415608644485,
0.015364037826657295,
0.019126251339912415,
0.04904217645525932,
-0.0852077454328537,
4.881437554435296e-33,
0.034224506467580795,
0.0756368339061737,
-0.02566910907626152,
0.030338149517774582,
0.035188257694244385,
-0.0031729843467473984,
-0.01493852585554123,
0.06098341941833496,
-0.04689095914363861,
0.00988569762557745,
-0.00677231652662158,
-0.02656041458249092,
0.028372347354888916,
-0.09339170157909393,
-0.07092618942260742,
-0.031682975590229034,
0.02628549374639988,
-0.01288022380322218,
-0.14106489717960358,
0.028470724821090698,
0.011516918428242207,
-0.0055950600653886795,
-0.009855682961642742,
0.0013375392882153392,
-0.009106919169425964,
0.002422437770292163,
0.022019142284989357,
-0.06402543187141418,
-0.018569886684417725,
0.0062513831071555614,
0.007041926961392164,
-0.0031673237681388855,
-0.009430295787751675,
-0.0570170022547245,
0.0614217147231102,
-0.0911063551902771,
-0.009434686042368412,
-0.007372022140771151,
-0.038169119507074356,
-0.05059470236301422,
0.034902140498161316,
0.06725836545228958,
-0.0667094886302948,
0.068221315741539,
0.02521871030330658,
-0.04407621547579765,
-0.016117878258228302,
-0.03456084057688713,
0.09242133051156998,
0.03811991959810257,
-0.005672363098710775,
-0.0061928583309054375,
-0.08714664727449417,
0.00794951617717743,
-0.016322815790772438,
0.0033127402421087027,
0.02697642147541046,
-0.00154741364531219,
0.010922391898930073,
-0.04022108390927315,
0.07761503010988235,
-0.04326104372739792,
0.03172779455780983,
0.09063958376646042,
-0.026064924895763397,
0.09208022058010101,
-0.03825698420405388,
0.07822860777378082,
0.0032044225372374058,
0.03795924782752991,
-0.05110983923077583,
0.0731109157204628,
0.1413450837135315,
-0.11326234042644501,
0.12985536456108093,
-0.04298608750104904,
0.01146460510790348,
0.039980705827474594,
0.01357482373714447,
0.04982049763202667,
-0.0688018947839737,
-0.015198995359241962,
0.04843692108988762,
-0.011818287894129753,
-0.07455524057149887,
-0.0253025870770216,
-0.03922859951853752,
0.014795852825045586,
0.03065742552280426,
-0.015365513041615486,
0.0627574622631073,
-0.004678814671933651,
0.040041953325271606,
-0.07789191603660583,
-0.1606171578168869,
-5.053761352845997e-33,
0.05157867819070816,
0.1009366363286972,
-0.008506152778863907,
0.02234109491109848,
-0.034638628363609314,
-0.014085032977163792,
0.009473215788602829,
0.05604815110564232,
-0.08142169564962387,
-0.06256337463855743,
0.09402404725551605,
0.053671613335609436,
-0.041466131806373596,
-0.11762979626655579,
0.0251825749874115,
-0.008054984733462334,
0.014788875356316566,
-0.05666119605302811,
0.00784587673842907,
0.0028737313114106655,
0.05974503979086876,
-0.05307445302605629,
0.008618480525910854,
0.0023282140027731657,
-0.016618015244603157,
-0.033402640372514725,
0.02407258376479149,
0.004670449998229742,
-0.021649278700351715,
-0.012528810650110245,
-0.022446665912866592,
0.007073978427797556,
0.003491981653496623,
-0.001654652412980795,
0.005346136633306742,
-0.014432615600526333,
0.05925385281443596,
-0.007850234396755695,
-0.06813720613718033,
0.009277149103581905,
0.0038524228148162365,
0.04100639000535011,
-0.035288430750370026,
0.020239461213350296,
-0.02711792290210724,
0.08645311743021011,
0.03348558768630028,
0.04645019397139549,
0.055760905146598816,
0.043835803866386414,
0.053915832191705704,
-0.028284000232815742,
-0.03758233040571213,
0.11811444908380508,
0.03527412563562393,
0.047297798097133636,
0.016297603026032448,
0.04431828483939171,
0.006433852016925812,
0.09044492989778519,
0.0331234410405159,
-0.019409922882914543,
0.03261711820960045,
-0.01812003180384636,
0.04702840745449066,
-0.06408311426639557,
-0.022573217749595642,
0.0798528790473938,
0.03495015576481819,
0.030884262174367905,
0.011041651479899883,
-0.012799061834812164,
-0.011950133368372917,
-0.02687620371580124,
0.06454232335090637,
0.011398701928555965,
0.04425744339823723,
-0.1257900595664978,
0.010290849953889847,
-0.01899605430662632,
-0.011987407691776752,
0.03221195563673973,
0.01633288338780403,
-0.02431190013885498,
0.05295240506529808,
0.01385522074997425,
0.015626758337020874,
-0.02454955503344536,
-0.029152655974030495,
-0.06965088844299316,
0.01472525391727686,
-0.009889144450426102,
-0.009645386599004269,
-0.05117202550172806,
0.03479267656803131,
-5.99960756630935e-8,
0.02198202908039093,
0.0052849589847028255,
-0.03856851905584335,
0.03377710282802582,
0.06237618997693062,
-0.015681566670536995,
-0.009807746857404709,
0.017229605466127396,
0.03388184681534767,
0.033680662512779236,
0.09070543944835663,
-0.108584925532341,
-0.022274736315011978,
-0.06671299040317535,
0.03583679348230362,
-0.03186974674463272,
-0.04252881556749344,
-0.044682469218969345,
-0.04882463812828064,
0.04850819334387779,
-0.026507871225476265,
0.03837645426392555,
0.044552214443683624,
-0.09828230738639832,
0.04279359430074692,
-0.010731960646808147,
-0.06897086650133133,
0.07817825675010681,
0.033557694405317307,
-0.06874066591262817,
-0.04342667758464813,
-0.01600898616015911,
0.061861418187618256,
-0.024807335808873177,
-0.04030884802341461,
-0.011063911020755768,
-0.06862988322973251,
0.02484866790473461,
0.04756730794906616,
0.028965583071112633,
0.03316979855298996,
-0.04730721190571785,
0.012685461901128292,
0.031951501965522766,
-0.08089614659547806,
0.06577210873365402,
-0.06908142566680908,
-0.08280240744352341,
-0.0007521552033722401,
0.0013147942954674363,
-0.05068514496088028,
0.028257928788661957,
0.026757951825857162,
-0.042449336498975754,
-0.07730088382959366,
0.040407463908195496,
-0.009521394036710262,
-0.030138466507196426,
0.007746561896055937,
0.004129035398364067,
0.10605335235595703,
-0.09120917320251465,
-0.15280623733997345,
-0.02351965755224228
] | 14,353 |
14,356 |
The optical and near-infrared follow-up observations of flaring blazar BL Lacertae using Kanata Telescope
|
R. Imazawa, N. Hazama, M. Sasada, Y. Fukazawa (Hiroshima University)
|
BL Lacertae is on an active state in optical (ATel #13930, #13956, #13958 #14065, ), X-ray (ATel #14069), and gamma-ray (ATel #13933, #13963, #13964, #14032, #14072) wavelengths since August 2020, also on the other active state since October 2020 (Atel #14065, #14069, #14072, #14081, #14096). BL Lacertae showed a historical brightness in the optical bands on Jan. 17, 2021 (Atel #14328, #14329). Since August 2020, we have performed optical and near-infrared photometric and polarimetric monitoring to the object using Hiroshima Optical and Near-InfraRed camera (HONIR; Akitaya al. 2014, Proc. SPIE, 9147, 91474O) attached to 1.5-m Kanata telescope at Higashi-Hiroshima Observatory. The measured magnitudes (Vega system) and polarization degree(PD) in the optical and near-infrared bands are shown below: MJD V R I J H Ks PD_R(%) PD_J(%) 59229.450 12.61+/-0.06 11.77+/-0.01 10.77+/-0.01 9.85+/-0.03 8.95+/-0.03 8.17+/-0.04 10.57+/-0.09 9.33+/-0.26 59233.450 12.42+/-0.01 11.70+/-0.01 10.75+/-0.01 9.87+/-0.04 9.12+/-0.07 8.27+/-0.03 13.51+/-0.08 13.77+/-0.27 59234.452 12.62+/-0.01 11.86+/-0.02 10.92+/-0.01 9.92+/-0.03 9.04+/-0.03 8.27+/-0.03 5.97+/-0.07 6.92+/-0.18 The optical brightness is calibrated by comparing with magnitudes of nearby field stars in Pan-STARRS DR1 catalog (Chambers et al. 2016, arXiv:1612.05560) and color transformation (Tonry et al. 2012, ApJ, 750, 2). The near-infrared brightness is calibrated by nearby stars with the Two Micron All Sky Survey (2MASS) catalog (Skrutskie et al. 2006, AJ, 131, 2, 1163)
|
2021-01-29 13:10:00
|
infra-red,optical,x-ray,gamma ray,agn,black hole,blazar,star
|
2021-01-29
|
13:10:00
| 1,535 |
[
-0.024716980755329132,
-0.05816678702831268,
-0.06726458668708801,
0.05990058183670044,
-0.03019425831735134,
-0.0496848002076149,
0.0027998194564133883,
0.05362214893102646,
0.05670342594385147,
0.03689150884747505,
0.02259964682161808,
-0.03143183887004852,
-0.044060081243515015,
0.039614610373973846,
0.05647125095129013,
0.0661991685628891,
0.03325194865465164,
-0.07759559899568558,
-0.09448249638080597,
0.027599485591053963,
0.054195791482925415,
-0.004642876330763102,
-0.01805994100868702,
0.05299881845712662,
-0.043096091598272324,
-0.05491432547569275,
-0.004053861368447542,
-0.02781728096306324,
-0.021866992115974426,
-0.022534407675266266,
-0.05607356131076813,
0.02713990956544876,
0.004691359121352434,
0.030139673501253128,
0.02838093414902687,
-0.06542766839265823,
0.08495502173900604,
-0.0916328951716423,
-0.06850545108318329,
0.03536422923207283,
-0.007434006314724684,
-0.06570389121770859,
-0.016770996153354645,
0.013174355961382389,
-0.03677843138575554,
-0.033739253878593445,
-0.00764278881251812,
-0.06317111104726791,
-0.08424855023622513,
-0.029692886397242546,
-0.016966987401247025,
0.012149306945502758,
0.015357507392764091,
-0.0029635787941515446,
0.05317375063896179,
0.055631037801504135,
0.02565053291618824,
-0.026476146653294563,
0.10132871568202972,
-0.020933659747242928,
0.03655889257788658,
-0.00030976723064668477,
-0.07090780884027481,
-0.07658462226390839,
0.0006174204172566533,
-0.009709132835268974,
0.03880840167403221,
-0.11211355775594711,
0.07457611709833145,
-0.08779319375753403,
0.013176008127629757,
-0.040035590529441833,
0.02231564000248909,
-0.00823945738375187,
-0.06317179650068283,
0.015171774663031101,
0.09817437082529068,
0.03816913068294525,
0.0038997347000986338,
-0.05691184848546982,
0.03934105858206749,
-0.05971052497625351,
0.02871856652200222,
0.04531320929527283,
0.054051656275987625,
0.08426006883382797,
-0.038914427161216736,
0.01993425376713276,
-0.03521488979458809,
0.022234391421079636,
0.010592660866677761,
0.009544050320982933,
-0.08670990914106369,
-0.050489868968725204,
-0.03406279534101486,
-0.014409498311579227,
0.06229777634143829,
-0.06031251698732376,
0.03268951550126076,
0.030425356701016426,
0.05281868577003479,
-0.027752213180065155,
-0.14984509348869324,
0.07517791539430618,
-0.0960056483745575,
0.006584963295608759,
0.0987706407904625,
0.02187534049153328,
0.05289437249302864,
0.005730991251766682,
0.05263225734233856,
0.022423425689339638,
0.01382253784686327,
-0.004735993687063456,
-0.05585956946015358,
0.04846424609422684,
-0.03492928296327591,
0.12988431751728058,
0.07385911792516708,
-0.010114739648997784,
-0.004785182885825634,
0.03901542350649834,
0.06085889786481857,
0.122283436357975,
0.03878510743379593,
-0.02025483548641205,
-0.0257706381380558,
6.242265120054026e-33,
0.07987898588180542,
0.07336144149303436,
-0.00980217196047306,
-0.010372309945523739,
-0.1165093332529068,
0.013259234838187695,
-0.060409486293792725,
-0.0254164207726717,
-0.050675563514232635,
-0.05308284983038902,
-0.014100656844675541,
0.07341495156288147,
0.01779739186167717,
-0.051916517317295074,
0.03314995765686035,
-0.041566409170627594,
0.008994453586637974,
0.026306824758648872,
-0.06739131361246109,
0.07274199277162552,
-0.020935947075486183,
0.012537848204374313,
0.026026906445622444,
0.017634455114603043,
0.02285037375986576,
0.07135963439941406,
0.016049297526478767,
0.0457259900867939,
-0.017049558460712433,
0.025890566408634186,
0.12472482025623322,
0.014940299093723297,
-0.004257157910615206,
0.06564033031463623,
-0.06790151447057724,
-0.08193955570459366,
0.005943266209214926,
0.06760036945343018,
-0.10524307191371918,
-0.019953351467847824,
0.0877886638045311,
0.07909009605646133,
-0.042871661484241486,
0.018049485981464386,
0.012538688257336617,
-0.028230886906385422,
-0.014387727715075016,
0.014011351391673088,
0.0522751547396183,
0.03750629350543022,
-0.07921216636896133,
-0.010550066828727722,
-0.042630065232515335,
-0.02617095410823822,
0.028942903503775597,
0.0611431859433651,
0.0387776754796505,
-0.0518132708966732,
0.056420087814331055,
0.005692664068192244,
0.008284851908683777,
-0.02690516971051693,
0.08244958519935608,
-0.05079137906432152,
0.011696943081915379,
0.037718843668699265,
-0.057849347591400146,
0.023403331637382507,
-0.03435562178492546,
-0.03688998147845268,
-0.02525831013917923,
0.0648726150393486,
0.10525726526975632,
-0.056878723204135895,
0.011824981309473515,
-0.03052588552236557,
0.024371584877371788,
0.041425615549087524,
-0.048103488981723785,
0.04502386972308159,
-0.1138869971036911,
-0.023829611018300056,
0.11852322518825531,
-0.055672112852334976,
-0.0839085653424263,
-0.010001646354794502,
-0.012358742766082287,
-0.0690460279583931,
-0.06186231970787048,
-0.023661594837903976,
0.042529135942459106,
-0.026957854628562927,
-0.012671880424022675,
-0.07391517609357834,
-0.10882806032896042,
-5.1029084043118925e-33,
0.01751118339598179,
0.04137697070837021,
-0.05751703307032585,
0.0013336511328816414,
-0.012690195813775063,
-0.05069783329963684,
0.06539112329483032,
0.054855260998010635,
-0.015172687359154224,
-0.046174660325050354,
0.1400538831949234,
0.05761013552546501,
-0.07766322046518326,
-0.012745736166834831,
0.011347142979502678,
0.030063023790717125,
0.008907286450266838,
-0.06307008117437363,
-0.02375754714012146,
0.024245407432317734,
-0.035707782953977585,
-0.017971113324165344,
0.04406948760151863,
0.016619935631752014,
0.05096442624926567,
0.04809980094432831,
0.0810757428407669,
-0.09612763673067093,
-0.06494181603193283,
-0.08204057812690735,
0.02488483488559723,
0.00027559121372178197,
0.031340207904577255,
0.032380882650613785,
-0.035911139100790024,
0.005020014010369778,
0.016223346814513206,
-0.07205776870250702,
-0.05476681515574455,
0.014683128334581852,
-0.03304252028465271,
0.13791424036026,
-0.056593962013721466,
-0.05181891471147537,
-0.07243185490369797,
0.024884885177016258,
0.025104669854044914,
0.08245348185300827,
0.0014650792581960559,
-0.07819858193397522,
0.03820965811610222,
-0.009174966253340244,
0.03483711928129196,
0.021229272708296776,
0.025520848110318184,
-0.009589478373527527,
-0.012540029361844063,
0.06638725847005844,
-0.020120341330766678,
0.06357867270708084,
0.027325216680765152,
-0.007733122445642948,
0.0534217469394207,
0.02410762943327427,
0.03351039066910744,
0.060807403177022934,
0.04504694044589996,
0.029164118692278862,
0.0350593738257885,
0.036756936460733414,
0.03630091995000839,
-0.005415405612438917,
0.003484784858301282,
0.050644367933273315,
0.02908901870250702,
-0.03649304434657097,
0.018868643790483475,
-0.05971115082502365,
-0.0057735745795071125,
0.016777437180280685,
-0.044594958424568176,
-0.010136072523891926,
-0.057498499751091,
-0.04220975935459137,
0.09794888645410538,
0.00013766327174380422,
-0.012702792882919312,
-0.0379364974796772,
0.02718091569840908,
-0.002413979033008218,
-0.058959294110536575,
0.019108764827251434,
0.00678888987749815,
-0.01005675457417965,
0.1407080739736557,
-5.718007756172483e-8,
0.05262565612792969,
0.0006426028558053076,
-0.10334208607673645,
0.009434305131435394,
0.008369255810976028,
-0.07425066828727722,
0.018034623935818672,
0.00790619570761919,
0.0022550991270691156,
-0.02698543481528759,
-0.01741407997906208,
0.0002511416096240282,
-0.02066269889473915,
0.02125854790210724,
0.05668855831027031,
0.007453973405063152,
0.04279612377285957,
-0.07550770789384842,
-0.0002628547081258148,
0.01116050872951746,
0.03132569417357445,
0.017440473660826683,
0.00422254903241992,
-0.07853174954652786,
0.014770113863050938,
0.024491537362337112,
-0.10728654265403748,
0.05585845187306404,
0.06667423993349075,
-0.02956796996295452,
0.06952453404664993,
-0.01688513159751892,
0.02087998203933239,
-0.01323498971760273,
-0.013199043460190296,
0.040077824145555496,
-0.12039549648761749,
0.0611739456653595,
0.019946927204728127,
0.10655652731657028,
-0.03964024409651756,
-0.0507282018661499,
0.012519961223006248,
0.03964105620980263,
0.002787747886031866,
0.018773410469293594,
0.017698757350444794,
-0.03890647366642952,
-0.022066965699195862,
0.014910437166690826,
-0.03843436390161514,
0.015102486126124859,
-0.034533917903900146,
-0.047203272581100464,
-0.11188771575689316,
0.0031997901387512684,
0.07050682604312897,
-0.01124965026974678,
-0.03655672445893288,
0.01335969753563404,
0.08003035187721252,
-0.09628091752529144,
-0.0901707336306572,
-0.016690056771039963
] | 14,354 |
14,357 |
SRG discovery of SRGA J124404.1-632232 = SRGE J124403.8-632231 - possible Galactic X-ray transient
|
A. Semena(1), V. Doroshenko (2), V. Arefiev (1), A. Lutovinov (1), C. Maitra(3), I. Mereminskiy (1), S. Molkov (1), A. Rau (3), P. Weber (4), J. Wilms (4) (1: IKI RAS, Moscow, Russia; 2: U. of Tuebingen, Tuebingen, Germany, 3: MPE, Garching, Germany, 4: ECAP and Remeis-Observatory, Bamberg, Germany)
|
On Jan 27, 2021, during the third consecutive all-sky survey, the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory discovered a bright X-ray source at RA, Dec = 191.0172deg, -63.3756deg (J2000) with a 90% error radius of 25". The source was detected with the X-ray flux of ~10-11 ergs cm-2 s-1 in the 4-12 keV energy band. No sources were detected by ART-XC at that position in the first two surveys in 2020.
Simultaneously, the source was also detected by the SRG/eROSITA telescope, providing an enhanced position of RA(J2000) = 191.01604deg (12h 44m 3.8s) DEC(J2000)=-63.37555deg (-63d 22' 32") with an uncertainty radius of 8" (3 sigma).
Inspection of the previous eROSITA scans over this position found the source to be detected both in eRASS1 (Jan 2020) and eRASS2 (Jul 2020). A joint fit to eROSITA spectra from all three surveys reveals no significant variations in spectral shape, which can be approximated as an absorbed power law with photon index of ~1.4, absorption column of ~2.4x1022 cm-2, consistent with the Galactic foreground absorption in this direction, and observed flux of 1.5, 0.4, and 3.1x10-12 ergs cm-2 s-1 in 0.2-5 keV energy band respectively.
The eROSITA position is consistent with the bright, reddened NIR/optical star 2MASS 12440380-6322320, for which the GAIA DR3 distance estimate is available (approx. 5.8 kpc, Bailer-Jones et al., 2021). Given the low Galactic latitude of the transient (b=-0.51 degree), and its obscured, hard X-ray spectrum, we tentatively propose it to be the new Galactic HMXB. The source also was detected earlier by Swift/XRT (2SXPS J124403.6-632234, Evans et al., 2020), at a flux level of 2x10-12 ergs cm-2 s-1 in 0.3-10 keV band.
Multiwavelength observations are urged to uncover the nature of this hard transient. Follow-up NuSTAR observations of the source are scheduled for Jan, 30-31.
ART-XC and eROSITA are X-ray telescopes on board the SRG observatory which was launched from the Baikonur cosmodrome on 13 July 2019 by a Proton rocket. ART-XC has been renamed 'Mikhail Pavlinsky ART-XC telescope', after the tragic loss of its former PI, Dr. Mikhail Pavlinsky, who passed away in July 2020.
|
2021-01-30 04:00:00
|
optical,x-ray,binary,star,transient
|
2021-01-30
|
04:00:00
| 2,178 |
[
-0.01753229834139347,
0.019943807274103165,
-0.05661507323384285,
0.046194445341825485,
0.1328914314508438,
-0.0707862451672554,
0.047442808747291565,
0.08291690051555634,
0.03302295506000519,
0.023347968235611916,
0.0007693806546740234,
-0.01407795399427414,
0.016512667760252953,
0.01172189973294735,
-0.0069018141366541386,
0.012164611369371414,
0.03705929219722748,
-0.10381501913070679,
0.025916917249560356,
0.0326649509370327,
0.03793758898973465,
0.02206452190876007,
0.05070041865110397,
-0.02669992856681347,
0.05645459145307541,
-0.027012374252080917,
-0.04218258336186409,
-0.03215678781270981,
0.015910441055893898,
0.01317089144140482,
0.0029852529987692833,
0.05719589814543724,
-0.0381891168653965,
-0.012064212933182716,
0.04010935127735138,
0.05345025286078453,
0.04216914251446724,
-0.07461060583591461,
0.004949408583343029,
0.014061321504414082,
-0.004771508742123842,
-0.03189624473452568,
-0.006347707938402891,
-0.02555050142109394,
-0.08053222298622131,
-0.0045950040221214294,
0.009653368033468723,
-0.04163973033428192,
-0.055194027721881866,
0.07414166629314423,
0.022326568141579628,
-0.052660662680864334,
-0.01983601227402687,
0.022016705945134163,
0.12042916566133499,
-0.05589846521615982,
-0.0904594212770462,
-0.036663394421339035,
0.012761978432536125,
0.04399864003062248,
0.01651247963309288,
0.07139778137207031,
-0.041335102170705795,
-0.01584595814347267,
0.02055751346051693,
0.013138039037585258,
-0.0786290317773819,
-0.0793098583817482,
0.009069053456187248,
-0.005608222912997007,
0.014865847304463387,
0.05602108687162399,
-0.07197272032499313,
-0.02740764431655407,
-0.02559952437877655,
0.04054296016693115,
0.09270419180393219,
0.006142590194940567,
0.04358946532011032,
-0.10681256651878357,
-0.013699103146791458,
0.007665707729756832,
-0.02724437788128853,
0.019705798476934433,
0.014604589901864529,
0.02364807389676571,
-0.019492199644446373,
0.06998501718044281,
-0.017103884369134903,
0.03770000487565994,
0.07723783701658249,
0.018431855365633965,
-0.03309645503759384,
-0.027174506336450577,
0.10900837928056717,
0.017503373324871063,
0.07750814408063889,
-0.0005441657267510891,
0.05080823600292206,
0.016889657825231552,
0.06340484321117401,
0.047659266740083694,
-0.05131041258573532,
0.04637610912322998,
-0.09986543655395508,
-0.02200557105243206,
-0.012600955553352833,
0.059776607900857925,
-0.07683921605348587,
0.0162521842867136,
0.01759064756333828,
-0.04414263367652893,
0.04772382974624634,
-0.038857944309711456,
-0.006556251551955938,
0.0031515315640717745,
0.0367366261780262,
0.05154160037636757,
-0.09146931022405624,
-0.06854644417762756,
-0.039790719747543335,
0.0037071877159178257,
0.03682389855384827,
0.14406818151474,
0.10584108531475067,
-0.009881510399281979,
-0.0864153504371643,
2.537130987162169e-33,
0.04609355702996254,
0.08060038089752197,
0.0022836714051663876,
0.0025702943094074726,
-0.04077422618865967,
0.1056932806968689,
0.049744535237550735,
0.07207561284303665,
-0.035716790705919266,
0.031837090849876404,
-0.021416345611214638,
0.03267199173569679,
0.06794163584709167,
-0.07339117676019669,
-0.03429911285638809,
-0.009358620271086693,
0.05760837718844414,
0.01740194857120514,
-0.12483895570039749,
0.05143313109874725,
-0.01275002770125866,
-0.026789458468556404,
-0.035620369017124176,
0.025114212185144424,
0.0008115306263789535,
0.08892285823822021,
-0.02162233740091324,
-0.032748159021139145,
-0.0528232678771019,
-0.010818594135344028,
-0.03956160694360733,
0.030979668721556664,
-0.010929412208497524,
0.09189779311418533,
-0.06404253840446472,
-0.015990618616342545,
-0.051619887351989746,
0.0006980814505368471,
-0.0837855339050293,
0.004194497596472502,
0.0739530548453331,
0.04419797286391258,
0.025612488389015198,
-0.05675145238637924,
0.048010267317295074,
0.005806636065244675,
-0.061389487236738205,
-0.018178066238760948,
0.06104139983654022,
-0.016391174867749214,
-0.03577559068799019,
0.015437636524438858,
-0.032674867659807205,
-0.028017356991767883,
0.03652431443333626,
0.06717947870492935,
-0.04711643233895302,
0.012503472156822681,
-0.007548389490693808,
0.02627149038016796,
0.09029810130596161,
-0.019949112087488174,
-0.021201137453317642,
0.08853379637002945,
-0.025600168853998184,
0.04379129409790039,
-0.040671009570360184,
-0.059653691947460175,
-0.066695936024189,
0.04423211142420769,
-0.050652842968702316,
-0.03969326615333557,
0.04180547967553139,
-0.08601722866296768,
0.05761275812983513,
-0.060294464230537415,
-0.1000867486000061,
0.08708782494068146,
0.012455468066036701,
-0.0015700767980888486,
-0.03808021545410156,
-0.005259690806269646,
0.04077603667974472,
-0.08078965544700623,
-0.09196794033050537,
0.019144872203469276,
-0.006485017482191324,
0.03727961331605911,
-0.013558829203248024,
0.02885628119111061,
-0.0015214246232062578,
-0.10021181404590607,
-0.036054566502571106,
-0.05438077449798584,
-0.1353762447834015,
-2.866006388531413e-33,
-0.036136820912361145,
0.012619183398783207,
-0.0009734241175465286,
0.03412553668022156,
0.037315648049116135,
0.029706062749028206,
0.07201484590768814,
-0.006682782433927059,
-0.051019489765167236,
-0.01961301453411579,
0.14322900772094727,
0.050187259912490845,
-0.05683544650673866,
-0.040808919817209244,
0.04362336918711662,
0.0057772244326770306,
0.08391221612691879,
-0.011253409087657928,
-0.08751549571752548,
0.011451512575149536,
0.04074065759778023,
0.06400705128908157,
0.07617203146219254,
-0.05833982676267624,
-0.01308553945273161,
0.01295831985771656,
0.10562238097190857,
-0.03456040844321251,
-0.055394623428583145,
0.014136897400021553,
-0.13304302096366882,
0.02977304905653,
-0.05380474030971527,
-0.012491495348513126,
0.03282696753740311,
-0.005002831574529409,
0.00037507826345972717,
0.017054706811904907,
-0.0452863983809948,
-0.0017220447771251202,
-0.012657424435019493,
0.12807677686214447,
-0.027412161231040955,
0.07217739522457123,
-0.0673728659749031,
0.04194091632962227,
0.015187726356089115,
0.10852234810590744,
0.044560499489307404,
0.01608276553452015,
-0.05257879197597504,
-0.09967934340238571,
-0.03316056355834007,
0.025900864973664284,
-0.037263061851263046,
0.04746059328317642,
-0.005152049474418163,
0.057711437344551086,
-0.004342721309512854,
0.015618144534528255,
-0.03244759514927864,
0.0003622543008532375,
-0.010820762254297733,
-0.0488729402422905,
0.041306331753730774,
-0.013712001964449883,
0.00816701352596283,
0.09532441943883896,
0.03462258353829384,
-0.00467052822932601,
0.09923622012138367,
-0.052972882986068726,
0.0017598752165213227,
0.013822024688124657,
-0.013698454014956951,
0.03037664107978344,
-0.05195320025086403,
-0.058064188808202744,
0.00862092524766922,
-0.04526688531041145,
-0.021503912284970284,
0.011506985872983932,
0.01980636827647686,
0.013598023913800716,
0.10620617866516113,
0.009623932652175426,
-0.03044130466878414,
0.001010094303637743,
-0.04263695329427719,
-0.058707572519779205,
-0.02633223496377468,
-0.03214430436491966,
0.004513849038630724,
0.02946237288415432,
0.16563652455806732,
-5.7630849426004715e-8,
-0.08164792507886887,
0.049079667776823044,
-0.059522274881601334,
-0.038853149861097336,
0.0782221257686615,
-0.07097849994897842,
0.03290640935301781,
0.001793026109226048,
0.012497439980506897,
0.03341289982199669,
-0.042282987385988235,
-0.04535376653075218,
0.028534093871712685,
-0.04497169703245163,
0.03833354637026787,
-0.04915717989206314,
0.037277817726135254,
-0.04066066816449165,
-0.05170491710305214,
-0.016389399766921997,
0.055033233016729355,
-0.04450060427188873,
-0.0070124357007443905,
-0.03520599380135536,
0.023885514587163925,
0.009448806755244732,
-0.04527561366558075,
-0.040851473808288574,
0.07587364315986633,
-0.034504491835832596,
-0.05582334101200104,
-0.0254927147179842,
0.042495813220739365,
-0.01640898361802101,
-0.005264719948172569,
0.012883203104138374,
-0.07398251444101334,
0.030474403873085976,
0.041582703590393066,
0.010060821659862995,
-0.013384588062763214,
-0.06058493256568909,
0.08173245191574097,
0.022886447608470917,
-0.06695576012134552,
0.04198439046740532,
-0.0247796718031168,
-0.10574234277009964,
-0.0015072638634592295,
0.05549250543117523,
0.01297199446707964,
-0.0022607510909438133,
0.06062326580286026,
-0.13143111765384674,
-0.02921312488615513,
-0.04234755411744118,
0.016142670065164566,
-0.026486031711101532,
-0.004187744576483965,
0.005985521711409092,
0.06849206984043121,
-0.05372945964336395,
-0.06298147141933441,
-0.04381853714585304
] | 14,355 |
14,358 |
Spectroscopic classification of SN 2021bge with SOAR and the Goodman Spectrograph
|
G. Terreran (Northwestern University), R. Cartier (CTIO), W. Jacobson-Galan (Northwestern University)
|
We report the spectroscopic classification SN 2021bge, discovered by Koichi Itagaki.
The observation was performed with the Goodman High Throughput Spectrograph, mounted on the 4.1m SOAR telescope (range 320-720 nm; resolution 0.5 nm).
(1) The spectrum shows prominent P-Cygni profiles from the Balmer series. From the position of the minimum of H beta we measure an expansion velocity of 9800 km/s.
|
2021-01-31 05:43:00
|
optical,supernovae
|
2021-01-31
|
05:43:00
| 401 |
[
-0.08170240372419357,
-0.0782715231180191,
-0.030634833499789238,
-0.011420384980738163,
0.02027999795973301,
0.07125373929738998,
-0.05332307144999504,
0.0219658724963665,
-0.02146001160144806,
-0.004688543267548084,
-0.0006545366486534476,
-0.010359789244830608,
-0.08267885446548462,
-0.02028973400592804,
-0.02446027286350727,
-0.0347384437918663,
0.051241435110569,
-0.09860056638717651,
0.03775155171751976,
-0.007932635955512524,
-0.008294246159493923,
0.03641476109623909,
-0.020284850150346756,
0.08488664776086807,
0.05306365713477135,
-0.026744240894913673,
-0.0902397409081459,
-0.022355705499649048,
-0.014001197181642056,
-0.023519378155469894,
0.12658901512622833,
0.10514410585165024,
-0.02083698846399784,
0.024793121963739395,
0.058314405381679535,
-0.08817973732948303,
0.06967189162969589,
0.013524023815989494,
0.044751688838005066,
-0.04376029968261719,
0.01862945407629013,
-0.03443431854248047,
0.027851605787873268,
0.013030481524765491,
0.013172917999327183,
0.0679594948887825,
-0.02408011071383953,
-0.03410666435956955,
-0.033731237053871155,
-0.0635838732123375,
0.02441442757844925,
-0.07391563802957535,
0.02871491014957428,
-0.032585758715867996,
0.01186260674148798,
0.07129953801631927,
-0.019356731325387955,
-0.11051127314567566,
0.06624335050582886,
-0.053274836391210556,
0.04357857257127762,
-0.02813391573727131,
-0.02112610451877117,
-0.016075948253273964,
0.03162238001823425,
0.06128842383623123,
-0.024565409868955612,
-0.09496789425611496,
0.08259215950965881,
-0.06236901134252548,
-0.0381922721862793,
-0.015817932784557343,
-0.0835442766547203,
0.047845259308815,
-0.00043008208740502596,
0.01143221091479063,
0.09461190551519394,
0.01220516674220562,
0.05576978623867035,
-0.08941419422626495,
0.01670210435986519,
-0.026298776268959045,
-0.0163724347949028,
-0.04560690000653267,
-0.030349038541316986,
-0.010595830157399178,
-0.06327752768993378,
0.08444661647081375,
-0.02404121495783329,
-0.034405943006277084,
0.030913475900888443,
-0.09114968031644821,
-0.12075608223676682,
-0.036263905465602875,
-0.08198826760053635,
0.0054933237843215466,
0.0326734259724617,
-0.007366359233856201,
0.10717969387769699,
-0.0053985267877578735,
0.08638591319322586,
-0.020837396383285522,
0.016387462615966797,
0.016628697514533997,
-0.07813110202550888,
0.07667440176010132,
0.059142351150512695,
0.01710313931107521,
0.08619803190231323,
0.005289291962981224,
0.049173276871442795,
0.042773790657520294,
-0.0517791323363781,
-0.10499534755945206,
0.01914146915078163,
0.029601547867059708,
-0.031006844714283943,
0.11640705168247223,
-0.03824795410037041,
-0.049332763999700546,
-0.015737909823656082,
0.05717909708619118,
-0.01230486761778593,
0.09278734773397446,
0.030330372974276543,
0.04874520003795624,
-0.16540749371051788,
2.0441112076830316e-33,
0.04322803020477295,
0.00450559239834547,
-0.004927820060402155,
0.04884692281484604,
-0.05035519227385521,
0.005240458529442549,
0.011143957264721394,
0.04600853472948074,
-0.019175352528691292,
0.03379138186573982,
-0.10939957946538925,
0.00681274151429534,
0.04105193912982941,
-0.037143003195524216,
-0.02514943666756153,
0.003324225079268217,
-0.06888380646705627,
-0.026796016842126846,
-0.06546122580766678,
-0.008055799640715122,
-0.034104544669389725,
0.015561436302959919,
-0.0075060524977743626,
0.017754284664988518,
0.03914487361907959,
0.023790869861841202,
0.06745056807994843,
-0.005897792987525463,
0.015281999483704567,
0.025886202231049538,
0.07274165749549866,
-0.06821002066135406,
-0.0038408006075769663,
-0.009670990519225597,
0.05987312272191048,
-0.04834785684943199,
-0.022494560107588768,
0.049456868320703506,
0.03556204214692116,
-0.01243880856782198,
0.08179119229316711,
0.022922057658433914,
-0.09300708770751953,
0.01735122874379158,
0.039370372891426086,
-0.00951780378818512,
-0.008060676045715809,
0.05583661422133446,
0.04486396908760071,
-0.02373705618083477,
-0.02521958202123642,
-0.03343125432729721,
-0.08238324522972107,
0.07361411303281784,
0.0008731067064218223,
0.05922890827059746,
0.04747379943728447,
0.0052463822066783905,
0.052985239773988724,
-0.03708471357822418,
0.08558834344148636,
0.08895402401685715,
-0.03485194221138954,
0.027906930074095726,
0.03070990927517414,
0.037853073328733444,
-0.0380789078772068,
0.06429257988929749,
-0.03886000066995621,
0.0013066274113953114,
-0.051402460783720016,
0.0665445551276207,
0.058382656425237656,
0.013107232749462128,
0.09741267561912537,
-0.03739160671830177,
0.01167402882128954,
0.014362333342432976,
0.025175470858812332,
0.0517893023788929,
-0.09465650469064713,
0.021396493539214134,
0.039115630090236664,
-0.0171551164239645,
-0.07680083811283112,
-0.04518597200512886,
0.006542862858623266,
-0.025776702910661697,
-0.009682410396635532,
-0.046746183186769485,
0.04831323400139809,
-0.032374825328588486,
-0.020384492352604866,
-0.020458709448575974,
-0.024605590850114822,
-3.197453367464073e-33,
0.03170286864042282,
0.006955526303499937,
0.0008435483323410153,
0.020650271326303482,
0.004507849924266338,
0.03629407659173012,
0.018551141023635864,
0.06682263314723969,
-0.0694151297211647,
-0.08798288553953171,
0.11005981266498566,
0.03368968516588211,
-0.0335673913359642,
-0.1246427670121193,
0.05039365589618683,
-0.031131794676184654,
-0.047050364315509796,
0.0011028173612430692,
-0.0008373413584195077,
0.011773429811000824,
-0.00736247468739748,
-0.024143101647496223,
0.018651627004146576,
-0.03236783668398857,
-0.016592413187026978,
0.019101886078715324,
0.07434990257024765,
-0.000016178182704607025,
0.035493575036525726,
0.0630209743976593,
-0.0011984974844381213,
-0.010709546506404877,
0.03241404518485069,
-0.06734918057918549,
-0.04098520055413246,
-0.021367356181144714,
0.0012532451655715704,
0.010174831375479698,
-0.06600450724363327,
-0.03471207246184349,
-0.05486548691987991,
0.09517551213502884,
0.017333192750811577,
0.029127128422260284,
0.02712620049715042,
-0.003507656045258045,
-0.062470659613609314,
0.025159373879432678,
0.03905985504388809,
0.016509026288986206,
0.053882598876953125,
-0.03559570387005806,
0.02253836579620838,
-0.022769661620259285,
0.026593318209052086,
0.05129389837384224,
0.06612599641084671,
0.055060118436813354,
0.016715051606297493,
-0.02978312037885189,
-0.019858965650200844,
-0.013052119873464108,
0.05752427130937576,
0.002205322962254286,
0.07943394780158997,
0.0006912673125043511,
-0.024497639387845993,
0.013525883667171001,
0.09572133421897888,
-0.03179560601711273,
-0.010803138837218285,
-0.041759394109249115,
-0.04188219830393791,
0.03406842425465584,
0.07139570266008377,
0.05656658858060837,
-0.056426726281642914,
-0.04820597916841507,
0.040498051792383194,
0.024949247017502785,
-0.04275226220488548,
-0.01575085148215294,
0.0408342070877552,
0.026484373956918716,
0.13798773288726807,
-0.033266305923461914,
-0.056966204196214676,
-0.0015191379934549332,
0.01352795772254467,
-0.07023534923791885,
0.014973800629377365,
0.02311003766953945,
0.013958444818854332,
-0.02158503420650959,
0.07229141145944595,
-4.637848149968704e-8,
0.01629326306283474,
-0.00340486248023808,
-0.0005067528691142797,
-0.038997113704681396,
-0.0006492252578027546,
0.030046027153730392,
0.09970048815011978,
0.029831010848283768,
-0.000250674580456689,
-0.0631893202662468,
0.03863959386944771,
-0.022870982065796852,
0.011527176015079021,
0.011949431151151657,
0.08459234237670898,
-0.07545284181833267,
-0.08622787892818451,
-0.02080046571791172,
-0.040871188044548035,
0.05051788315176964,
0.06080654636025429,
0.0398661270737648,
0.06252148002386093,
-0.0896579697728157,
-0.04108642414212227,
-0.020289083942770958,
-0.015508465468883514,
0.1041017547249794,
0.003845340572297573,
-0.0774218812584877,
0.015744812786579132,
-0.002370649017393589,
-0.02291700802743435,
0.008366587571799755,
0.014777817763388157,
0.05425671488046646,
-0.1503019481897354,
0.027257032692432404,
0.057101380079984665,
0.09229813516139984,
-0.05564623326063156,
-0.05737537145614624,
-0.015835145488381386,
0.03488994762301445,
-0.023928076028823853,
-0.07236161828041077,
0.005664513446390629,
-0.0175930242985487,
-0.04781212657690048,
-0.010575409978628159,
-0.04419495910406113,
0.021588070318102837,
-0.08078493177890778,
-0.05066652223467827,
-0.10672924667596817,
0.06946563720703125,
-0.008844412863254547,
-0.0418691486120224,
-0.07909467816352844,
-0.05935879424214363,
0.07305161654949188,
-0.1074468344449997,
-0.12465981394052505,
0.006827756762504578
] | 14,356 |
14,359 |
Fermi GBM Observations of SGR J1935+2154
|
O. J. Roberts (USRA), J. Wood (USRA), R. Hamburg (UAH), A. von Kienlin (MPE), P. Veres (UAH) and G. Younes (GWU)
|
At 15:23:29.92 UTC on January 29th 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located a burst from SGR 1935+2154 (trigger 633626614 / 210129641). SGR J1935 bursts were also reported by Konus-Wind (Ridnaia et al., GCN 29373), GECAM (Y. Huang et al., GCN 29363) and Swift-BAT (Ridania et al., GCN 29365). The GBM on-ground location is consistent with the known position of the SGR. This burst has a duration (T90) of about 0.1 seconds. It is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is 0.2 (+0.2/-0.2) and the cutoff energy, parameterized as Epeak, is 32.9 (+0.6/-0.6) keV. The event fluence (10-1000 keV) from T0-0.064s to T0+0.064s is (5.2 +/- 0.1)E-7 erg/cm^2. The average photon flux in the 10-1000 keV band during this period is 94.6 +/- 1.9 ph/s/cm^2. The spectrum is also well fit using a double blackbody (BB+BB) fit, with low and high temperatures of 6.2 (+0.6/-0.7) and 12.5 (+1.6/-1.3) keV, respectively. There are two additional bursts that also appear to be from SGR J1935, about 354s after the trigger time. Fermi GBM also triggered on multiple bursts from SGR J1935+2154 on January 24th, 28th, 29th and 30th, with a fraction of these being misclassified as GRBs. The IDs, METs and times of these triggers are: January 30th: 210130876 / 633733287 (21:01:22.91 UTC) 210130112 / 633667276 (02:41:11.35 UTC) 210130008 / 633658270 (00:11:05.37 UTC) January 29th: 210129886 / 633647760 (21:15:55.98 UTC) 210129441 / 633609344 (10:35:39.94 UTC) 210129292 / 633596405 (07:00:00.99 UTC) 210129116 / 633581187 (02:46:22.58 UTC) January 28th 210128983 / 633569707 (23:35:02.48 UTC) January 24th 210124867 / 633214108 (20:48:24.00 UTC) 210124325 / 633167319 (07:48:34.36 UTC) The spectral analysis results presented above are preliminary. We encourage multiwavelength observations, especially at radio wavelengths, to follow-up this most recent activation. For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/
|
2021-01-31 08:48:00
|
radio,x-ray,gamma ray,gamma-ray burst,soft gamma-ray repeater
|
2021-01-31
|
08:48:00
| 2,060 |
[
-0.09265775978565216,
-0.03093920461833477,
-0.0201244093477726,
0.02942398376762867,
0.07177054136991501,
0.008386514149606228,
0.033833421766757965,
0.04254680126905441,
-0.019671736285090446,
-0.026351366192102432,
0.061564959585666656,
0.04221951961517334,
0.018501494079828262,
-0.0004963592509739101,
0.07508733123540878,
-0.024222899228334427,
0.06184239313006401,
-0.07572066783905029,
-0.011250355280935764,
-0.01473204791545868,
0.0020321530755609274,
0.028056234121322632,
-0.009843792766332626,
0.04835296422243118,
-0.000532337639015168,
-0.06296205520629883,
0.030163375660777092,
-0.016803674399852753,
0.026880711317062378,
-0.037080805748701096,
0.0959743857383728,
-0.01811838336288929,
-0.07322129607200623,
0.06111665815114975,
0.0372900553047657,
-0.03027478978037834,
0.027664514258503914,
0.031241560354828835,
0.016560472548007965,
-0.0048567261546850204,
0.002094295574352145,
-0.023563627153635025,
0.02867257222533226,
-0.03182852640748024,
-0.017913173884153366,
-0.00946675706654787,
0.030106982216238976,
-0.05296134203672409,
-0.08562786132097244,
-0.029995856806635857,
-0.0008224576013162732,
-0.03309952840209007,
0.049687568098306656,
0.05966471880674362,
0.06350894272327423,
-0.012557086534798145,
-0.07385742664337158,
-0.11367584019899368,
0.08185161650180817,
-0.0025837672874331474,
-0.02206370234489441,
-0.05607036128640175,
-0.0888332650065422,
-0.06375434249639511,
0.017277540639042854,
0.02907407656311989,
0.07281803339719772,
0.010427146218717098,
0.07789352536201477,
0.027772314846515656,
0.09898822009563446,
-0.0012802542187273502,
-0.08231595903635025,
-0.047574352473020554,
-0.08501563966274261,
0.016316747292876244,
0.024226661771535873,
0.006678873207420111,
0.05324411764740944,
0.013846542686223984,
0.008775124326348305,
-0.02105850540101528,
0.033671434968709946,
-0.04362748563289642,
0.007124800235033035,
-0.006926010362803936,
0.04440094530582428,
0.13786953687667847,
0.01935725286602974,
0.0406327098608017,
0.01814071647822857,
0.03702622652053833,
0.012305399402976036,
0.09466353058815002,
0.035381585359573364,
0.005060382653027773,
-0.010276736691594124,
-0.10455642640590668,
0.07831486314535141,
0.0002549168420955539,
0.006572370417416096,
0.023504555225372314,
0.013949820771813393,
0.08585897088050842,
-0.01340616587549448,
-0.03308665007352829,
-0.057275351136922836,
0.11377198994159698,
0.01984831877052784,
0.03033258765935898,
0.10021395981311798,
0.0863698348402977,
0.03594164177775383,
-0.002920211758464575,
0.039775051176548004,
0.014563646167516708,
-0.026795506477355957,
0.026077108457684517,
-0.008149305358529091,
-0.02138262614607811,
-0.008310886099934578,
0.09448473900556564,
-0.06999878585338593,
-0.0364496111869812,
0.003248761873692274,
0.050306107848882675,
-0.017402544617652893,
3.798481424987601e-33,
0.0049080210737884045,
0.024315882474184036,
-0.04716946557164192,
-0.045664675533771515,
0.004331696312874556,
0.0569671168923378,
-0.0721169114112854,
0.06432532519102097,
0.03185512125492096,
0.02090640738606453,
-0.15153120458126068,
-0.048155367374420166,
0.03909876570105553,
-0.034966956824064255,
0.0350213386118412,
-0.0792497992515564,
0.018888084217905998,
0.007808946538716555,
-0.040859632194042206,
0.02184958942234516,
0.007818227633833885,
-0.014250710606575012,
-0.027562689036130905,
-0.03466271981596947,
0.01678093709051609,
0.05361127853393555,
-0.013194269500672817,
0.02013218030333519,
0.029540913179516792,
0.048154547810554504,
0.034914299845695496,
0.00722478749230504,
0.020623622462153435,
0.029417218640446663,
0.010112916119396687,
-0.03219210356473923,
-0.04145098850131035,
-0.03162512928247452,
0.009041664190590382,
-0.02455146610736847,
0.001174242701381445,
0.06537846475839615,
-0.12734189629554749,
0.022254077717661858,
-0.02613261714577675,
-0.09281089901924133,
0.006843763403594494,
0.012506772764027119,
0.021866656839847565,
0.016818294301629066,
-0.010611659847199917,
0.00007237558747874573,
-0.05988624691963196,
0.03218855708837509,
0.06787403672933578,
0.0879800021648407,
0.05665723234415054,
-0.005138498730957508,
0.053842078894376755,
0.050053857266902924,
0.0012303800322115421,
-0.0008882859838195145,
0.04868732765316963,
0.031195562332868576,
0.06749455630779266,
-0.004728543106466532,
-0.026675522327423096,
-0.01129978522658348,
-0.07164785265922546,
0.03037191368639469,
-0.02156616561114788,
0.0009051646920852363,
0.0678597241640091,
-0.1074521541595459,
0.031853266060352325,
-0.08139219880104065,
0.03274885565042496,
0.04262223839759827,
-0.0348624512553215,
-0.02395382709801197,
-0.05413474142551422,
-0.07212332636117935,
0.02947356551885605,
-0.04401865601539612,
-0.042836397886276245,
0.010205531492829323,
-0.0442713163793087,
-0.05615173652768135,
-0.0411340706050396,
-0.022497327998280525,
0.05792829021811485,
-0.06121956184506416,
0.0631464421749115,
0.028693310916423798,
-0.10155586898326874,
-2.9885064915405267e-33,
-0.0035554091446101665,
0.013222294859588146,
0.008576593361794949,
0.0060134041123092175,
0.0032053948380053043,
0.02000754326581955,
0.0004967727581970394,
0.02789470925927162,
-0.06807183474302292,
-0.04867689311504364,
-0.014528539031744003,
0.0038400059565901756,
-0.0534696951508522,
0.037791889160871506,
0.027445252984762192,
-0.05362134799361229,
0.1025218740105629,
-0.03574230521917343,
-0.05874960497021675,
-0.0021640437189489603,
0.07189728319644928,
-0.05609874427318573,
-0.0008697545272298157,
-0.011307074688374996,
0.030711553990840912,
0.05580756068229675,
0.0774858221411705,
-0.004421761725097895,
0.07870189845561981,
-0.010905537754297256,
-0.04602240025997162,
0.027309807017445564,
-0.028670821338891983,
0.016327768564224243,
0.03913602605462074,
-0.022609539330005646,
0.021749258041381836,
0.07128771394491196,
0.028184637427330017,
-0.05770539119839668,
0.040430374443531036,
0.16649065911769867,
-0.05181928351521492,
0.0743027776479721,
-0.01129603199660778,
0.08736912906169891,
0.0473441481590271,
0.06660937517881393,
-0.02157936431467533,
-0.03344031795859337,
-0.07169043272733688,
-0.07150663435459137,
0.019088400527834892,
0.1141788437962532,
-0.04491996765136719,
-0.08026847243309021,
0.07906218618154526,
-0.06284552812576294,
-0.11460091173648834,
-0.040476735681295395,
0.047974277287721634,
-0.056454259902238846,
0.030471347272396088,
-0.043207552284002304,
0.018731778487563133,
-0.060061488300561905,
-0.022002942860126495,
0.04500531777739525,
0.05665171518921852,
-0.021146193146705627,
0.013225970789790154,
-0.016637856140732765,
-0.04144188016653061,
-0.013509024865925312,
-0.042730942368507385,
0.03201409429311752,
-0.025579283013939857,
-0.06721808016300201,
-0.015891188755631447,
-0.05905668064951897,
0.003123330883681774,
0.11641942709684372,
-0.030279001221060753,
-0.08586998283863068,
0.04192567989230156,
0.001458273851312697,
-0.0668540820479393,
0.028231747448444366,
0.08927439898252487,
-0.07155803591012955,
-0.0885072723031044,
0.03816964477300644,
-0.003724597627297044,
0.040847551077604294,
0.015521691180765629,
-5.4579508912411256e-8,
-0.028743663802742958,
0.06228017061948776,
-0.05339738354086876,
0.05970298498868942,
0.05054285749793053,
-0.0190124474465847,
0.0010862065246328712,
0.003231554990634322,
0.0440714955329895,
-0.02108709141612053,
0.08567629009485245,
-0.009285223670303822,
0.03747934848070145,
-0.03630432114005089,
-0.018122471868991852,
-0.07925577461719513,
0.011232316493988037,
-0.06008901447057724,
-0.005870740860700607,
0.0360298827290535,
-0.003778288373723626,
-0.01429721713066101,
0.07175222784280777,
0.016925454139709473,
-0.030015014111995697,
0.06113971769809723,
-0.018147455528378487,
0.09411192685365677,
-0.010387735441327095,
-0.08088117837905884,
-0.07117149978876114,
0.009213772602379322,
0.021006498485803604,
0.0024878871627151966,
-0.07315380871295929,
0.06065310165286064,
0.014577306807041168,
0.021965613588690758,
0.16286857426166534,
0.048478107899427414,
0.02794206701219082,
-0.10372452437877655,
0.013477670028805733,
0.04049031808972359,
-0.10231617838144302,
0.0021096086129546165,
-0.06413420289754868,
-0.009262322448194027,
-0.00497872568666935,
0.04341912269592285,
-0.06464051455259323,
-0.056777410209178925,
-0.01690654270350933,
-0.035137005150318146,
-0.04861336201429367,
-0.010969518683850765,
-0.09910796582698822,
-0.08151541650295258,
-0.046623073518276215,
-0.053978994488716125,
0.053254757076501846,
-0.07874511927366257,
-0.15522758662700653,
0.03071870468556881
] | 14,357 |
14,360 |
Spectroscopic classification of AT2021biy in NGC 4631 by NUTS2 (NOT Un-biased Transient Survey-2)
|
Y.-Z. Cai (Tsinghua University), A. Pastorello (INAF-OAPd), A. Reguitti (Univ. Andres Bello), M. Fraser (UCD), S. Benetti, G. Valerin (INAF-OAPd), E. Kankare (UTU), P. Lundqvist (Stockholm University), M. D. Stritzinger (Aarhus University)
|
The NUTS2 collaboration (Holmbo et al. 2019, ATel #12661) reports the spectroscopic classification of AT 2021biy (ATLAS21dfy; Tonry et al. 2021, TNSAN, 33, 1) in the SBd galaxy NGC 4631. The candidate was discovered by the ATLAS survey (Tonry et al. 2018, PASP, 13, 064505; Smith et al. 2020, PASP, 132:085002).
The observation was performed with the 2.56 m Nordic Optical Telescope equipped with ALFOSC on 2020-01-31.12 UT (range 340-980 nm; resolution 1.3 nm).
(1) The spectrum shows a relatively blue continuum dominated by prominent Balmer lines in emission, with an unresolved narrow component superposed on a broader base (with FWHM ~2500 km/s). Narrow lines of Fe II, Ca II and O I are also identified. A narrow absorption of Na I is visible at the redshift of the host galaxy, with an equivalent width (EW) of 1.6 A, suggesting additional host galaxy extinction. Adopting the correlation between EW of Na I and color excess E(B-V) of Turatto et al. 2003, we obtain E(B-V) = 0.25 mag. The object has also been targeted in photometry on January 30.05 UT at the 62/92-cm Schmidt telescope of Asiago, at a magnitude V=18.0 (and B-V = 0.3 mag). Adopting for NGC 4631 a TRGB distance of 7.52 Mpc (Monachesi et al. 2016, MNRAS, 457, 1419), we infer for the transient an absolute magnitude M_V ~-12.1. The overall properties are consistent with those of a luminous red nova (LRN) soon after the early blue maximum (Pastorello et al. 2019, A&A, 630, A75), although an LBV-like outburst cannot be ruled out. [Ca II] lines are not clearly detected in the spectrum, hence the classification as an Intermediate-Luminosity Red Transient is less likely (Pastorello & Fraser 2019, Nature Astron. 3, 676). Due to its high luminosity (even without accounting for the host galaxy extinction), we rule out that AT 2021biy is a classical nova. The redshift of the host galaxy is from De Vaucouleurs et al. 1991, RC3, v. 3.9.
|
2021-01-31 22:20:00
|
optical,nova,supernovae,transient
|
2021-01-31
|
22:20:00
| 1,913 |
[
-0.08915190398693085,
-0.04891825467348099,
-0.04421405866742134,
0.03554269298911095,
0.06425844877958298,
-0.023155244067311287,
-0.05284515768289566,
0.05481541156768799,
0.04137623310089111,
0.01048102043569088,
-0.04598263278603554,
-0.04013277217745781,
-0.017048116773366928,
-0.03122686967253685,
0.05880814045667648,
-0.008115206845104694,
0.041983433067798615,
-0.11737371981143951,
0.02705882117152214,
0.054427992552518845,
-0.013944259844720364,
0.10018692910671234,
-0.030065352097153664,
0.005048004444688559,
0.03474165499210358,
-0.0059973569586873055,
-0.0009230915457010269,
-0.05686706677079201,
0.021189706400036812,
-0.015486359596252441,
0.0361507274210453,
0.06619373708963394,
-0.022709693759679794,
0.032364193350076675,
0.028601136058568954,
-0.049353018403053284,
0.015969188883900642,
-0.05236343666911125,
-0.014845697209239006,
-0.027254294604063034,
0.010955692268908024,
-0.060176584869623184,
0.011771867983043194,
-0.0831642895936966,
-0.06903533637523651,
-0.03078467771410942,
-0.07147586345672607,
-0.025155674666166306,
-0.07660350203514099,
0.02629275619983673,
-0.03981154412031174,
-0.035234950482845306,
-0.009519357234239578,
0.07387109845876694,
0.034983135759830475,
0.007203580811619759,
-0.027434201911091805,
-0.155485138297081,
0.1319621503353119,
-0.008094294928014278,
0.0423041433095932,
-0.04728136584162712,
0.004653790965676308,
-0.02502831630408764,
-0.025462044402956963,
0.06080426275730133,
-0.02278723008930683,
-0.10634378343820572,
0.07193481922149658,
-0.0816856250166893,
-0.014665905386209488,
-0.030470676720142365,
-0.00723147951066494,
0.051514629274606705,
0.06647650897502899,
0.06536655873060226,
0.10955333709716797,
-0.004525456577539444,
0.047764312475919724,
-0.07996441423892975,
0.025428621098399162,
0.02535022236406803,
-0.046441368758678436,
0.021425167098641396,
-0.05344504863023758,
0.020352840423583984,
-0.059348270297050476,
0.08177673816680908,
-0.060785163193941116,
-0.03804102540016174,
0.04866646230220795,
0.004666995257139206,
-0.11417839676141739,
-0.07965455204248428,
-0.031355056911706924,
0.005355951841920614,
0.029826877638697624,
0.030029062181711197,
0.06050112098455429,
0.04026859998703003,
0.0540911890566349,
-0.0006103795021772385,
-0.043052464723587036,
0.039259642362594604,
-0.09324748814105988,
-0.014393865130841732,
0.07602833956480026,
0.01720200479030609,
0.008329431526362896,
-0.030219698324799538,
0.08142192661762238,
0.016961099579930305,
-0.07255087047815323,
-0.10009531676769257,
-0.0016298609552904963,
0.04209548234939575,
0.007827643305063248,
0.12152206152677536,
-0.06199108809232712,
0.020451128482818604,
-0.02578631229698658,
0.05656874552369118,
0.0059623876586556435,
0.037235330790281296,
0.07396843284368515,
0.09700935333967209,
-0.13432949781417847,
2.785502841586341e-33,
0.10586704313755035,
0.010790657252073288,
0.021963713690638542,
0.04375793784856796,
-0.05394769459962845,
0.029356135055422783,
-0.08389328420162201,
0.03163947910070419,
-0.010579418390989304,
0.006407592911273241,
-0.05058394744992256,
0.026037175208330154,
0.011538852006196976,
-0.04032126069068909,
-0.013955610804259777,
0.01206531748175621,
0.013239542953670025,
0.002121188212186098,
-0.08395956456661224,
0.026024339720606804,
-0.01704380102455616,
0.07534081488847733,
0.007373526692390442,
0.02952207438647747,
0.03144052252173424,
0.07547415047883987,
0.06410760432481766,
-0.016999350860714912,
0.03561186417937279,
0.03623677417635918,
0.03724009171128273,
-0.0055292025208473206,
-0.0385819710791111,
0.04574337229132652,
0.03163191303610802,
-0.04695168510079384,
-0.08929859846830368,
0.027749348431825638,
-0.06149499863386154,
-0.06813853234052658,
0.0037530576810240746,
0.05777600780129433,
-0.08592924475669861,
0.019334882497787476,
0.02723395824432373,
-0.03593669831752777,
0.013915062882006168,
-0.01474070269614458,
0.03875347226858139,
-0.0025234154891222715,
0.00819110032171011,
0.004281764384359121,
-0.017752815037965775,
0.03396018221974373,
0.042359258979558945,
-0.009365963749587536,
0.0081330556422472,
-0.02316633053123951,
0.02064381167292595,
0.01850556954741478,
0.10204633325338364,
0.01921089179813862,
0.014661338180303574,
0.03241022676229477,
-0.01195581629872322,
0.05228758603334427,
-0.002607399597764015,
0.04477328062057495,
-0.04235418513417244,
-0.011460818350315094,
0.006286815274506807,
0.05303909629583359,
0.08136860281229019,
0.021497752517461777,
0.07367660850286484,
-0.05930664762854576,
0.07204543054103851,
0.00024117255816236138,
0.038474760949611664,
0.04313801974058151,
-0.04557206854224205,
-0.008881829679012299,
0.07551556825637817,
-0.03377366438508034,
-0.13977135717868805,
-0.01694485731422901,
-0.054673608392477036,
0.004718965385109186,
0.010493098758161068,
-0.0857662558555603,
0.021590223535895348,
0.0649881362915039,
-0.019282814115285873,
-0.0013215214712545276,
-0.12526850402355194,
-3.8849956051562135e-33,
0.01632850617170334,
-0.05115935206413269,
0.005675088614225388,
-0.008649674244225025,
-0.013209856115281582,
-0.004597818944603205,
0.03713960200548172,
0.07837633043527603,
-0.07223431766033173,
-0.05043678358197212,
0.11480867862701416,
0.08097241818904877,
-0.03661423176527023,
-0.10701072961091995,
0.0657280907034874,
-0.0009569904650561512,
-0.0244423970580101,
-0.023117506876587868,
-0.012176391668617725,
0.009595107287168503,
-0.003205103101208806,
-0.004085533320903778,
0.055321093648672104,
-0.03217737749218941,
-0.021703122183680534,
0.05523483455181122,
0.049520742148160934,
-0.05592157691717148,
-0.040398597717285156,
0.02402380295097828,
-0.013408170081675053,
0.03738543391227722,
-0.006154933944344521,
0.00925430841743946,
-0.016879675909876823,
-0.005295234732329845,
0.011762433685362339,
-0.0504486970603466,
-0.1091419979929924,
0.014254552312195301,
-0.09275761991739273,
0.1141672283411026,
-0.04415644705295563,
0.014483346603810787,
0.00012089702795492485,
-0.06034962460398674,
0.016879355534911156,
0.06182204186916351,
0.0454731248319149,
-0.06787095963954926,
0.0035767797380685806,
0.01304527185857296,
0.01885618269443512,
0.04405330866575241,
0.014031721279025078,
0.032263606786727905,
0.015811536461114883,
0.11743240058422089,
0.026612598448991776,
0.046222202479839325,
0.008044043555855751,
0.00706185819581151,
0.04118288308382034,
0.007270902395248413,
0.08796649426221848,
-0.00663613248616457,
0.0312242079526186,
0.046867456287145615,
-0.016315190121531487,
0.050835154950618744,
0.05012015625834465,
-0.05489532649517059,
-0.10351330786943436,
0.009252271614968777,
0.1268540471792221,
0.05740632861852646,
0.011388326995074749,
-0.08284600079059601,
-0.02570539154112339,
0.030723560601472855,
-0.018519923090934753,
0.013238429091870785,
0.01923610270023346,
0.06375165283679962,
0.06926530599594116,
0.004872764926403761,
-0.03673629090189934,
-0.05489787086844444,
-0.05372622609138489,
-0.012510266155004501,
-0.050990212708711624,
-0.025204546749591827,
-0.058035917580127716,
0.025893503800034523,
0.07287073135375977,
-6.414371966911858e-8,
0.006776374764740467,
0.03394060581922531,
-0.018845675513148308,
0.016863727942109108,
0.017748668789863586,
-0.0367811918258667,
-0.03964851051568985,
0.027518076822161674,
0.029942883178591728,
0.05188359320163727,
0.0064796521328389645,
-0.013850836083292961,
-0.031223494559526443,
-0.04651559516787529,
0.03622260317206383,
-0.0471239909529686,
-0.06185344606637955,
-0.014021358452737331,
-0.031953953206539154,
0.1129087433218956,
0.07193896919488907,
0.023892618715763092,
0.03820500522851944,
-0.07719879597425461,
-0.01705166883766651,
-0.02935798466205597,
-0.009206018410623074,
0.061204276978969574,
0.04877930134534836,
-0.027290521189570427,
-0.019931232556700706,
-0.02224542200565338,
-0.016286516562104225,
-0.09486567229032516,
-0.03579318895936012,
0.021129366010427475,
-0.12382079660892487,
0.019496731460094452,
0.03307436779141426,
0.09976354241371155,
0.003316679736599326,
-0.011547841131687164,
-0.056173212826251984,
0.01493597961962223,
-0.046329766511917114,
0.014715743251144886,
-0.04342864081263542,
-0.026078063994646072,
-0.0746643990278244,
0.042184893041849136,
-0.05233989655971527,
-0.03285020962357521,
0.008721180260181427,
-0.05595017597079277,
-0.1399330198764801,
-0.031425852328538895,
-0.004570404067635536,
-0.017632240429520607,
-0.032278914004564285,
-0.003347570076584816,
0.07207804173231125,
-0.09671152383089066,
-0.10148384422063828,
0.025243636220693588
] | 14,358 |
14,361 |
Periodic variability in the archival OGLE light curve of X-ray transient SRGA J124404.1-632232 (SRGE J124403.8-632231)
|
P. Mroz (Caltech), A. Udalski (Warsaw U.), on behalf of the OGLE team
|
A new X-ray source SRGA J124404.1-632232 (SRGE J124403.8-632231) (ATel #14357) detected by the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory is located in the field GD1296 that has been regularly observed since 2013 by the OGLE survey as part of the OGLE Galaxy Variability Survey (Udalski et al. 2015, Acta Astron. 65, 1).
Semena et al. (ATel #14357) noted that the position of the X-ray source is consistent with that of a reddened star 2MASS 12440380-6322320. The archival I-band OGLE light curve of that source reveals long-term variability with a peak-to-peak amplitude of 0.4 mag, which is similar to that observed in other X-ray sources. In addition, the object exhibits low-amplitude (0.1 mag peak-to-peak) semi-regular variability with a period of 138 +/- 1 days.
The mean brightness (I=13.68 mag) and color (V-I=2.88 mag) of the star are consistent with those of a highly reddened HMXB as proposed by Semena et al. (ATel #14357) (interstellar reddening toward the object is approximately E(V-I)=2.44 as estimated from the extinction maps of Bovy et al. 2015 and Marshall et al. 2006). The 138 +/- 1 d periodicity in the archival OGLE light curve can be interpreted as the orbital period of the binary.
|
2021-02-01 02:48:00
|
optical,x-ray,binary,star,transient,variables
|
2021-02-01
|
02:48:00
| 1,231 |
[
-0.0768890231847763,
0.016941232606768608,
0.0003559940669219941,
0.010229847393929958,
0.05134348198771477,
-0.05728187784552574,
-0.026505442336201668,
0.0781388208270073,
0.030057232826948166,
-0.04083436727523804,
-0.03990016505122185,
0.022585367783904076,
-0.002636065473780036,
-0.051228154450654984,
0.054605044424533844,
-0.08037294447422028,
-0.0003717445652000606,
-0.07276410609483719,
-0.035997986793518066,
0.05256495624780655,
0.07227373123168945,
0.08065804839134216,
0.01592693105340004,
-0.030719531700015068,
0.05840109661221504,
-0.08952859789133072,
-0.015241503715515137,
-0.03288596123456955,
0.028793999925255775,
-0.012401706539094448,
0.0409003347158432,
0.07180415838956833,
-0.043970633298158646,
0.010315285064280033,
0.0835820883512497,
0.042517438530921936,
0.01683119684457779,
-0.09839649498462677,
-0.026189571246504784,
-0.031692516058683395,
0.042562488466501236,
-0.028980445116758347,
-0.004938159137964249,
-0.024951012805104256,
-0.09708242118358612,
0.007326657883822918,
-0.025723008438944817,
-0.07535041868686676,
-0.12624353170394897,
0.034194961190223694,
0.0011679606977850199,
-0.05819711461663246,
-0.01872039958834648,
0.010700377635657787,
0.1325690746307373,
0.053016941994428635,
-0.11059984564781189,
-0.05524177476763725,
0.05389844626188278,
0.03266452997922897,
0.03629842400550842,
0.010400855913758278,
-0.011007487773895264,
-0.0275436881929636,
0.028045617043972015,
0.025351114571094513,
0.03313824161887169,
-0.07422950863838196,
0.035841114819049835,
-0.05733529105782509,
-0.04757307469844818,
0.0755104124546051,
-0.023954220116138458,
-0.0016371298115700483,
-0.0019231383921578526,
0.04702192172408104,
0.06973125785589218,
-0.004612510092556477,
0.10127478837966919,
-0.10977563261985779,
0.011706894263625145,
0.021418120712041855,
0.00398636981844902,
0.03037172183394432,
-0.02636743150651455,
-0.09006829559803009,
0.03458736464381218,
0.08604862540960312,
-0.03647121042013168,
0.03687828779220581,
0.0439620316028595,
0.0865846797823906,
-0.06960306316614151,
0.016748689115047455,
-0.040327806025743484,
-0.007668021600693464,
0.08340916782617569,
0.004753056447952986,
0.0989234670996666,
0.07051017880439758,
0.10186080634593964,
0.03665958344936371,
0.024716682732105255,
0.10648952424526215,
-0.00891284178942442,
-0.05314319208264351,
0.0006340978434309363,
0.0682087168097496,
-0.13572371006011963,
0.018399246037006378,
-0.00448484905064106,
0.00671605858951807,
-0.051841866225004196,
-0.10938554257154465,
-0.0024212098214775324,
-0.01011183112859726,
-0.012006199918687344,
0.08616434037685394,
-0.09310322254896164,
-0.08971665054559708,
-0.0376724936068058,
-0.021802444010972977,
-0.02871040254831314,
0.041439518332481384,
0.04134875908493996,
0.0786849707365036,
-0.10717148333787918,
5.903869316469075e-33,
0.06325755268335342,
0.044260915368795395,
0.027446839958429337,
-0.05702110379934311,
-0.0483647845685482,
0.06616748869419098,
-0.08243774622678757,
0.08566610515117645,
0.013535424135625362,
0.024847950786352158,
-0.018324535340070724,
0.02775619551539421,
-0.02139669470489025,
-0.05458035320043564,
-0.01756773516535759,
-0.03521828353404999,
-0.008890867233276367,
0.008076110854744911,
-0.08821895718574524,
0.057345200330019,
0.021272694692015648,
-0.05153637006878853,
-0.022403396666049957,
0.008940319530665874,
0.0439748577773571,
0.0786634087562561,
0.008927244693040848,
-0.05420662835240364,
-0.09024186432361603,
0.0028077559545636177,
0.03993000462651253,
-0.05086086690425873,
0.0029960882384330034,
0.033658869564533234,
-0.042712144553661346,
-0.05992353707551956,
-0.00724085234105587,
-0.0070924521423876286,
-0.032956309616565704,
-0.09147907048463821,
0.082175113260746,
0.034822314977645874,
0.005724720656871796,
0.004566921852529049,
0.060095228254795074,
0.007043005432933569,
0.021990446373820305,
-0.03114924766123295,
0.035331521183252335,
0.04154939949512482,
-0.025273295119404793,
-0.025903761386871338,
-0.029809528961777687,
0.02496417984366417,
0.020525025203824043,
0.04947241395711899,
0.030083443969488144,
-0.024060053750872612,
-0.012792861089110374,
0.004320473875850439,
0.08643963932991028,
0.037450216710567474,
0.03034338355064392,
0.06503763794898987,
0.07984429597854614,
0.10593289136886597,
-0.04451429098844528,
-0.05079077556729317,
-0.08538497984409332,
0.034115035086870193,
-0.037309397011995316,
0.013818198814988136,
0.06442520767450333,
-0.08407358080148697,
0.01825927384197712,
-0.044802892953157425,
0.03224712237715721,
0.05056990683078766,
0.015358556061983109,
0.015405124053359032,
-0.0589943565428257,
-0.025719111785292625,
0.039233554154634476,
-0.08162862807512283,
-0.12454474717378616,
-0.024072689935564995,
-0.01899888552725315,
-0.04410361498594284,
-0.016629038378596306,
0.029707837849855423,
0.0922781452536583,
-0.03468947485089302,
-0.06797618418931961,
-0.01909957081079483,
-0.12333513796329498,
-5.588044473787851e-33,
0.04051867872476578,
0.04637349396944046,
0.03633473813533783,
0.020082227885723114,
0.054480019956827164,
0.013493855483829975,
0.0445331409573555,
0.059293437749147415,
-0.036006052047014236,
-0.05904800444841385,
0.06089858338236809,
0.07440408319234848,
0.010801672004163265,
-0.04733244329690933,
0.05260719358921051,
-0.03129776194691658,
0.0702662542462349,
0.0046911989338696,
-0.013739168643951416,
0.04005047306418419,
0.018674584105610847,
0.06784138828516006,
0.03506816551089287,
-0.030001956969499588,
0.02662041038274765,
-0.005208365153521299,
0.06550849229097366,
-0.028786305338144302,
-0.060734305530786514,
-0.012772518210113049,
-0.01011379063129425,
0.04969574511051178,
-0.0015062626916915178,
-0.01519840955734253,
0.01812775805592537,
-0.05259168520569801,
0.022663487121462822,
0.009379873052239418,
-0.06109745800495148,
-0.018666749820113182,
-0.024964381009340286,
0.10321834683418274,
-0.03684917837381363,
0.04014592617750168,
-0.021541286259889603,
0.022116968408226967,
0.050839658826589584,
0.051628079265356064,
0.033733468502759933,
0.04350970685482025,
-0.003765761386603117,
-0.03501320630311966,
-0.008699563331902027,
0.011911129578948021,
-0.04466914385557175,
0.06150677800178528,
-0.05226953327655792,
-0.012294067069888115,
-0.03557998314499855,
0.04706980660557747,
0.018805334344506264,
-0.00021411642956081778,
-0.025611478835344315,
-0.023336654528975487,
0.035343021154403687,
-0.04560786485671997,
0.0014845774276182055,
0.02619125507771969,
0.026931626722216606,
0.013402865268290043,
0.07023888826370239,
-0.07243288308382034,
-0.11545303463935852,
-0.043491993099451065,
-0.0073182955384254456,
0.08360791206359863,
-0.05550048500299454,
-0.035505007952451706,
-0.013937210664153099,
-0.058762818574905396,
0.0034945341758430004,
0.06289483606815338,
0.04177314415574074,
0.025068648159503937,
0.03404434025287628,
0.02443159557878971,
-0.04970065876841545,
0.04034201800823212,
-0.007877863943576813,
-0.04449697211384773,
-0.06175626069307327,
-0.005863127298653126,
-0.05623513087630272,
0.047154635190963745,
0.07337883859872818,
-5.292390170552608e-8,
-0.040010757744312286,
0.09091819822788239,
-0.0003643136296886951,
0.01762431301176548,
0.07461932301521301,
-0.04646040126681328,
-0.025111353024840355,
-0.03913034871220589,
0.042608775198459625,
0.07394195348024368,
0.011558730155229568,
0.0033100212458521128,
-0.049817636609077454,
-0.11867687851190567,
-0.01103582140058279,
0.0082705058157444,
-0.07311414182186127,
-0.05457828938961029,
-0.05276228114962578,
0.08009875565767288,
0.03294002264738083,
-0.0466405525803566,
0.0039518289268016815,
-0.053731922060251236,
0.011980157345533371,
-0.03892044350504875,
0.0010038234759122133,
0.06743374466896057,
0.076245978474617,
-0.06471740454435349,
-0.0035690143704414368,
0.021758774295449257,
0.027587130665779114,
-0.05658216401934624,
-0.01349132601171732,
0.07307364046573639,
-0.03028717078268528,
0.024827605113387108,
0.0607970654964447,
0.02601398527622223,
0.007278806995600462,
-0.08679727464914322,
0.02661260962486267,
0.022814864292740822,
-0.11662274599075317,
0.019799625501036644,
0.0013256819220259786,
-0.11469943076372147,
0.009183474816381931,
0.028293825685977936,
-0.02125564217567444,
0.005729204975068569,
-0.04389989376068115,
-0.08174894005060196,
-0.02469034679234028,
0.025866400450468063,
0.01289697177708149,
0.021211493760347366,
0.006446343846619129,
0.04193020612001419,
0.09027553349733353,
-0.06764176487922668,
-0.09382504969835281,
0.0010224457364529371
] | 14,359 |
14,362 |
Sudden strengthening of He II emission line in the spectrum of B[e] star CI Cam
|
E. A. Barsukova, A. N. Burenkov (Special Astrophysical Observatory, Russia), V. P. Goranskij (SAI, Moscow University)
|
CI Cam is an optical counterpart of the X-ray transient XTE J0421+560 flared up in 1998 in all wavelength ranges. In the quiet state, its spectrum shows weak emission line He II 4686 A. This is a single line in the optical spectrum with large radial velocity variations. The amplitude of variations is of about 400 km/s. The source of this radiation - the secondary companion - moves in an elliptical orbit with the period of 19.407 day and the eccentricity of 0.49. In the course of the spectral monitoring of CI Cam on 2021 January 25.675 UT, we found its He II 4686 A emission line being unusually strong and wide. The spectrum was taken with the SAO 1 meter Zeiss telescope and UAGS spectrograph. The exposure was 2400 s long, the spectral range 3850-5260 A, the resolution 2.4 A. Parameters of the line were the following: EW = -1.9 A, FWHM = 390 km/s, and FWZI = 700 km/s (corrected for spectral resolution), heliocentric radial velocity -254 km/s. An hour later, we have taken a noisy spectrum through clouds. The emission had EW ~ -1.3 and the same radial velocity. Other emission lines have not shown significant variations. So far, we have analyzed 270 blue spectra of CI Cam obtained in the time range between December 1998 and December 2020. We found a rapid variability of the equivalent width of He II line on a time scale of tens of minutes in the full range between zero and -1.15 A. The amplitude of variability was progressively increasing for 20 years. However, the new observed intensity of the line is the strongest after the 1998 outburst. The equivalent widths of He II line also depend on the orbital phase. The maximum widths appear when the component passes the descending node of the orbit, while the smaller ones are associated with the apastron of the orbit. This fact suggests that the source of He II line radiation is extended. Really, in the descending node, the velocity of the source relative to surrounding circumstellar gas is more than 200 km/s, and the heated surface of the source colliding with this gas is located face-on to the observer. Our December 2020 photometry of CI Cam also confirms pulsations of the B star with the 0.406 day period and the amplitude of 0.04 mag in the V band. The rapid variability of He II line equivalent width may be explained by the interaction of the extended surface of the component with the pulsation waves in the envelope of the B star.
|
2021-02-01 03:43:00
|
optical,x-ray,binary,star,transient,variables
|
2021-02-01
|
03:43:00
| 2,415 |
[
-0.009254144504666328,
-0.0028791269287467003,
-0.03214510157704353,
0.02556942217051983,
-0.0049223885871469975,
-0.08008468151092529,
0.07821154594421387,
0.1381085366010666,
0.015835914760828018,
0.02554941177368164,
-0.02185838855803013,
-0.023507513105869293,
0.006200246512889862,
0.011973191052675247,
0.023487376049160957,
-0.011143063195049763,
0.015160457231104374,
-0.12317631393671036,
-0.03548159450292587,
0.08056513220071793,
-0.008745575323700905,
0.024205101653933525,
-0.05033737048506737,
0.0005642219330184162,
0.022439418360590935,
-0.020484335720539093,
-0.045932285487651825,
-0.02952602691948414,
0.05274577438831329,
0.00579726742580533,
0.02917628549039364,
0.04131106659770012,
-0.05076538398861885,
0.05568480119109154,
0.03409172594547272,
-0.05869003385305405,
0.12091277539730072,
-0.055858489125967026,
-0.01841554418206215,
0.039571333676576614,
-0.0028051030822098255,
-0.005919365677982569,
-0.022142667323350906,
-0.012463373132050037,
-0.025380700826644897,
0.004826012998819351,
-0.004890783689916134,
-0.06457411497831345,
-0.060886528342962265,
0.02196887880563736,
-0.0240965373814106,
0.03689904510974884,
0.02233513444662094,
0.035102758556604385,
0.051366500556468964,
-0.04095536097884178,
-0.05997288599610329,
-0.08341794461011887,
0.03644189611077309,
-0.009526034817099571,
0.023854196071624756,
0.010253075510263443,
0.01492331176996231,
-0.0011169941863045096,
-0.0015038048150017858,
0.019128547981381416,
-0.04199196770787239,
-0.04458669200539589,
0.11823245137929916,
-0.04747289419174194,
-0.05285052955150604,
0.03565463796257973,
-0.06915190815925598,
-0.07477594912052155,
-0.014013545587658882,
0.08140777051448822,
0.06820708513259888,
0.007939509116113186,
0.025769809260964394,
-0.13942959904670715,
0.0626949742436409,
-0.009466293267905712,
-0.0399906150996685,
0.015750430524349213,
0.033825185149908066,
0.06045046076178551,
0.04777386039495468,
0.03338621184229851,
-0.003991390578448772,
0.06101371347904205,
0.030078737065196037,
0.04045020416378975,
-0.045075323432683945,
-0.015431439504027367,
-0.04598067328333855,
0.003799135098233819,
0.1184314712882042,
-0.0667891874909401,
0.03944570571184158,
0.053470153361558914,
0.03440424054861069,
0.017932642251253128,
-0.023884085938334465,
0.07143755257129669,
-0.11841282248497009,
-0.0053809103555977345,
0.039840709418058395,
0.06718102097511292,
-0.08822593092918396,
-0.02306908741593361,
0.0019466560333967209,
-0.03306696563959122,
-0.04412350803613663,
-0.06652138382196426,
0.060659535229206085,
0.05579524114727974,
-0.022782253101468086,
0.08943473547697067,
-0.05248585343360901,
-0.036310676485300064,
0.0001937865454237908,
-0.01282998826354742,
-0.031926240772008896,
0.10538198053836823,
0.021351974457502365,
0.03199540823698044,
0.019039349630475044,
3.851059083247974e-33,
0.002393410773947835,
0.10314503312110901,
-0.033834271132946014,
0.010516246780753136,
-0.013589076697826385,
0.0338858962059021,
-0.08817347139120102,
0.04580525681376457,
-0.1030196100473404,
0.0434718132019043,
-0.005460998043417931,
-0.007029346656054258,
0.047790881246328354,
-0.058302897959947586,
0.0018232360016554594,
0.007711824961006641,
0.05605214834213257,
-0.028808318078517914,
-0.10457587242126465,
-0.011126989498734474,
-0.0022217349614948034,
-0.013645704835653305,
0.009486471302807331,
0.03958878666162491,
0.04169634357094765,
0.11040958017110825,
0.044900111854076385,
-0.013741220347583294,
-0.05437324941158295,
0.038296133279800415,
-0.006207248196005821,
-0.018750840798020363,
-0.019242528825998306,
0.0827811062335968,
-0.019290432333946228,
-0.005006199236959219,
-0.02199922502040863,
0.020611492916941643,
-0.011639813892543316,
0.04458851367235184,
0.03627705201506615,
0.05650327354669571,
0.0022755044046789408,
0.0009244571556337178,
0.064871646463871,
-0.0338238887488842,
0.00442063994705677,
-0.014419910497963428,
0.04523748904466629,
-0.01650106906890869,
-0.08803270012140274,
0.017934899777173996,
-0.03912085294723511,
0.01863097958266735,
0.04481516778469086,
0.029063988476991653,
0.03412673994898796,
-0.003366704797372222,
-0.02500881440937519,
0.01952688954770565,
0.06240582466125488,
-0.03229871019721031,
-0.04492255672812462,
0.04133529216051102,
0.011403309181332588,
0.018752047792077065,
-0.08005103468894958,
-0.003895341418683529,
-0.04774440824985504,
0.08297866582870483,
-0.029298529028892517,
0.013263882137835026,
0.1285276710987091,
-0.1238107904791832,
0.07282639294862747,
-0.05549478903412819,
-0.08312150090932846,
0.06641560047864914,
0.002966080792248249,
0.11229388415813446,
-0.1327686607837677,
-0.029543425887823105,
0.013647252693772316,
-0.022601637989282608,
-0.08655671030282974,
0.009257166646420956,
0.017354244366288185,
0.032885678112506866,
-0.07446115463972092,
0.0346679612994194,
0.041762419044971466,
0.008992470800876617,
0.003528105327859521,
-0.052962999790906906,
-0.07743211835622787,
-3.7839699472267e-33,
0.02642798237502575,
0.06113047152757645,
0.002151257125660777,
0.00939085427671671,
-0.026691608130931854,
0.023067474365234375,
0.009420069865882397,
0.1224135011434555,
-0.04819994419813156,
-0.022906241938471794,
0.08975092321634293,
0.02840319275856018,
-0.06528652459383011,
0.007143141236156225,
0.028853360563516617,
-0.023745829239487648,
0.06332200020551682,
0.002087700180709362,
-0.0321737676858902,
0.0032146212179213762,
0.059645481407642365,
-0.03242654353380203,
0.03787998855113983,
-0.055550169199705124,
0.01037631742656231,
0.045399948954582214,
0.09348499029874802,
-0.01290677860379219,
-0.022006521001458168,
-0.021329795941710472,
-0.0983487218618393,
0.07189731299877167,
-0.04408901557326317,
-0.021350659430027008,
0.003704107366502285,
0.010634738020598888,
0.06249702349305153,
-0.008134995587170124,
-0.11701762676239014,
-0.029698101803660393,
-0.03629816323518753,
0.12816546857357025,
0.07396312057971954,
-0.009221049956977367,
-0.0003218546917196363,
0.08255164325237274,
0.010718307457864285,
0.07390173524618149,
0.005049759987741709,
0.01080648135393858,
0.040261175483465195,
0.012616860680282116,
-0.0444868803024292,
0.1400708109140396,
-0.0047340975143015385,
0.040584418922662735,
0.019510513171553612,
0.04790093004703522,
-0.06677813827991486,
-0.006089978385716677,
0.034462589770555496,
-0.050812382251024246,
-0.01335954200476408,
-0.06344772130250931,
0.06797907501459122,
-0.02406051941215992,
0.05469623580574989,
0.06251596659421921,
0.02178778499364853,
-0.03397304564714432,
0.08105958998203278,
-0.08902103453874588,
-0.07790829986333847,
-0.024361323565244675,
-0.014116337522864342,
0.03838106617331505,
-0.04830664396286011,
-0.13052135705947876,
0.00905015878379345,
-0.009997396729886532,
-0.02379637584090233,
-0.021137820556759834,
0.011379698291420937,
-0.018361544236540794,
0.08858363330364227,
0.005674585700035095,
-0.10055653750896454,
-0.018269037827849388,
-0.011580405756831169,
-0.06783770024776459,
-0.008997957222163677,
0.008559229783713818,
-0.07500724494457245,
-0.02981279045343399,
0.081504687666893,
-5.97702225491048e-8,
-0.039775751531124115,
-0.0053212991915643215,
-0.0808061808347702,
0.01572626270353794,
0.06497076153755188,
-0.023759692907333374,
-0.007031156215816736,
-0.03191320598125458,
0.008299700915813446,
0.015917543321847916,
0.012814630754292011,
-0.003169466508552432,
0.06781955063343048,
0.026281503960490227,
0.024087533354759216,
-0.07634333521127701,
-0.010499323718249798,
-0.09318312257528305,
-0.03378137946128845,
0.038859862834215164,
-0.02431929111480713,
-0.04304219037294388,
0.010202198289334774,
-0.07096511870622635,
-0.03799146041274071,
-0.011264526285231113,
-0.0037525563966482878,
0.0319906510412693,
0.04032595828175545,
-0.04956887289881706,
-0.0473494678735733,
-0.0023652887903153896,
0.012754510156810284,
-0.032798945903778076,
-0.044286806136369705,
0.028757426887750626,
-0.08955463767051697,
0.030849825590848923,
0.02373145893216133,
0.01589559204876423,
0.028282921761274338,
-0.06587667018175125,
0.01034549716860056,
0.060171838849782944,
-0.0185806043446064,
0.04165961220860481,
0.024116968736052513,
-0.11880526691675186,
-0.02971615456044674,
-0.008203004486858845,
-0.025584109127521515,
0.015385125763714314,
0.07660471647977829,
-0.08851505070924759,
-0.12215108424425125,
-0.007805204018950462,
0.014579247683286667,
-0.03143198788166046,
-0.02450346015393734,
-0.038349367678165436,
0.08960278332233429,
-0.05221428722143173,
-0.1160154715180397,
-0.04348772019147873
] | 14,360 |
14,363 |
GECAM detection of a bright thermonuclear burst from 4U 0614+091
|
Y. P. Chen (IHEP), J. Li (USTC), S. L. Xiong (IHEP), L. Ji (SYSU), S. Zhang (IHEP), W. X. Peng (IHEP), R. Qiao, X. Y. Zhao, Y. Huang, F. J. Lu, S. N. Zhang, L. M. Song, S. Xiao, C. Cai, B. X. Zhang, Z. H. An, C. Chen, G. Chen, W. Chen, M. Gao, K. Gong, D. Y. Guo, J. J. He, B. Li, C. Li, C. Y. Li, J. H. Li, Q. X. Li, X. B. Li, X. Q. Li, Y. G. Li, X. H. Liang, J. Y. Liao, J. C. Liu, X. J. Liu, Y. Q. Liu, Q. Luo, X. Ma, G. Ou, D. L. Shi, J. Y. Shi, X. Y. Song, G. X. Sun, X. L. Sun, Y. L. Tuo, C. W. Wang, J. Z. Wang, P. Wang, X. Y. Wen, Y. B. Xu, Y. P. Xu, W. C. Xue, S. Yang, M. Yao, Q. B. Yi, C. Y. Zhang, D. L. Zhang, Fan Zhang, Fei Zhang, H. M. Zhang, K. Zhang, P. Zhang, Y. Q. Zhang, Z. Zhang, S. Y. Zhao, Y. Zhao, C. Zheng, S. J. Zheng, X. Zhou (IHEP), report on behalf of GECAM team:
|
During the commissioning phase, GECAM-B detected a very bright X-ray burst at 2021-01-24T11:50:03.600 UTC (denoted as T0, GCN 29350) from a direction centered on Ra: 94.9 degree, Dec: 6.6 degree with an error circle 2.7 degree (1-sigma, statistical only). The burst has a fast rise of 10 s, an exponential fashion decay and a duration of ~60 s. With 4 detectors out of 25, the peaks flux is ~700 cts/s above the pre-burst emission. A pulsation at 413 Hz is detected with ~4 sigma. The 2-second time bin burst spectra are well represented by a blackbody, with a temperature peaking at 4.0+/-0.2 keV and a peak flux (3.3+/-0.2) x 10^-7 erg/cm2/s. The spectrum softens with the temperatures from ~4 keV to ~2 keV during the decay. Assuming the source at a distance 3 kpc, the unabsorbed bolometric peak luminosity is (3.6+/-0.2) x 10^38 erg/s, which is well consistent with the Eddington limit with a stellar mass of 1.4 solar mass for hydrogen-poor matter. This analysis shows convincingly the burst is a genuine thermonuclear X-ray burst from 4U 0614+09, a faint and persistently accreting neutron star X-ray binary lying within the location error, from which the 415 Hz burst oscillation was first reported with data from Swift/BAT (Strohmayer et al. 2008). Since 4U 0614+091 has a burst recurrence time ~12 day (Linares et al. 2012), thanks to the very wide field of view (more than a half sky) of GECAM-B, more bursts should be detected during future observations of GECAM-B. Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission consists of two small satellites (GECAM-A and GECAM-B) in Low Earth Orbit (600 km, 29 deg), launched on Dec 10, 2020 (Beijing Time), which was funded by the Chinese Academy of Sciences (CAS).
|
2021-02-01 13:06:00
|
x-ray,binary,gravitational waves,neutron star,star
|
2021-02-01
|
13:06:00
| 1,760 |
[
-0.03044905513525009,
-0.07426188886165619,
0.04920903965830803,
-0.010747525840997696,
0.004891734570264816,
0.02151569537818432,
0.03640105947852135,
0.02537383697926998,
0.011561419814825058,
-0.03183509409427643,
0.021448787301778793,
0.02224590815603733,
0.05686492845416069,
-0.03857763856649399,
0.022625749930739403,
0.04252850264310837,
-0.00882742926478386,
-0.00782767217606306,
-0.07584554702043533,
-0.1233440488576889,
-0.026198087260127068,
-0.04966602101922035,
-0.0024466023314744234,
0.015863902866840363,
-0.07129660993814468,
-0.033725231885910034,
-0.06502538919448853,
0.04251907020807266,
0.006879554130136967,
-0.11212266236543655,
-0.025265904143452644,
0.13969513773918152,
0.06494791805744171,
-0.11653755605220795,
-0.13138093054294586,
0.037643857300281525,
-0.03894618898630142,
-0.0009351742337457836,
-0.08707007020711899,
-0.0008813678869046271,
0.018152453005313873,
0.06790196150541306,
0.07168680429458618,
-0.06648465991020203,
0.01329808309674263,
-0.044557709246873856,
-0.05367571860551834,
-0.036961983889341354,
-0.05491826683282852,
0.05073574185371399,
-0.018970247358083725,
-0.011998641304671764,
0.0399140790104866,
0.10391649603843689,
-0.008656113408505917,
-0.012060379609465599,
0.025258982554078102,
-0.003767542541027069,
0.0686306431889534,
0.041075631976127625,
-0.07719351351261139,
0.00497863907366991,
-0.051137544214725494,
0.03933167830109596,
0.11145464330911636,
0.007132896222174168,
0.013556272722780704,
0.029181236401200294,
0.06673485040664673,
0.1065019741654396,
-0.013116723857820034,
0.03590122610330582,
-0.033528923988342285,
0.06136118993163109,
0.019027313217520714,
0.06539095193147659,
-0.014049832709133625,
-0.08474857360124588,
-0.061618220061063766,
-0.04369163513183594,
-0.022585108876228333,
0.08723800629377365,
0.021878786385059357,
-0.02667030319571495,
0.03285853937268257,
0.014777202159166336,
0.054138023406267166,
0.0027293984312564135,
-0.10076100379228592,
0.016458339989185333,
0.09219951182603836,
0.09084754437208176,
-0.052850354462862015,
0.04694155231118202,
0.0027097954880446196,
0.05021855607628822,
0.014537669718265533,
-0.03135740011930466,
-0.04158490151166916,
-0.005431193392723799,
-0.009511860087513924,
0.024576283991336823,
-0.07283081859350204,
-0.02728653885424137,
0.03617639094591141,
-0.13159239292144775,
-0.0023139563854783773,
-0.00011776143946917728,
-0.008198617026209831,
-0.014811989851295948,
-0.07250334322452545,
0.01718762144446373,
0.008582553826272488,
-0.041893452405929565,
-0.013999157585203648,
0.02832587994635105,
0.006614665500819683,
0.08490552008152008,
-0.011682561598718166,
0.04144981503486633,
0.07508374005556107,
0.01684313639998436,
0.020763346925377846,
-0.003508575027808547,
-0.02235902100801468,
-0.03884333372116089,
-0.09751665592193604,
-8.382420828354962e-34,
0.0020792775321751833,
-0.03426786884665489,
-0.01981239765882492,
-0.0016128154238685966,
0.05212709680199623,
-0.05088929831981659,
-0.05890538915991783,
-0.010257348418235779,
-0.036366455256938934,
0.022075438871979713,
0.010151755064725876,
0.008094433695077896,
-0.055281296372413635,
0.03189242258667946,
0.10151107609272003,
-0.041961487382650375,
-0.07682085782289505,
0.012860722839832306,
-0.06892186403274536,
-0.024614643305540085,
0.012251466512680054,
0.043440040200948715,
0.030514532700181007,
-0.05754369497299194,
0.0021434342488646507,
0.006034675519913435,
0.04890602454543114,
-0.0005496838130056858,
0.010096649639308453,
-0.012691164389252663,
0.01353385392576456,
-0.019902875646948814,
-0.043203629553318024,
-0.041440386325120926,
-0.05651984363794327,
0.1137627363204956,
-0.03908742964267731,
-0.011545591987669468,
0.009610889479517937,
0.0193239264190197,
0.002476619090884924,
0.04881332442164421,
0.023835817351937294,
-0.007656313944607973,
0.027150485664606094,
-0.028078390285372734,
-0.05932825431227684,
-0.05187269300222397,
-0.10754375159740448,
-0.03289906680583954,
0.004767298698425293,
0.007016674615442753,
0.014427240006625652,
-0.00789850577712059,
0.010846917517483234,
-0.00398534769192338,
0.08279195427894592,
-0.07403939217329025,
-0.048708461225032806,
0.05153131112456322,
-0.07383017987012863,
0.005192271899431944,
-0.03713956102728844,
-0.015583929605782032,
-0.052736617624759674,
0.10363343358039856,
-0.010447768494486809,
-0.04077647253870964,
-0.012667532078921795,
-0.07225793600082397,
-0.02632625587284565,
-0.03769845515489578,
-0.004888221621513367,
-0.09133093804121017,
-0.022631635889410973,
-0.12804850935935974,
-0.015231985598802567,
-0.03664964810013771,
0.03351607546210289,
-0.002252208301797509,
-0.026904184371232986,
0.022328048944473267,
-0.1277061104774475,
0.06245148554444313,
-0.04341617599129677,
-0.0440400168299675,
-0.009731371887028217,
-0.039713308215141296,
-0.004295526072382927,
-0.07449441403150558,
-0.045453991740942,
-0.019560687243938446,
0.11530778557062149,
0.005684577859938145,
-0.08442045748233795,
-2.0552668327433274e-33,
-0.02627171017229557,
-0.01657247357070446,
0.036775339394807816,
0.09072191268205643,
0.04861050099134445,
0.04042614996433258,
0.07149314135313034,
0.04682915285229683,
0.04285774379968643,
-0.003455287544056773,
-0.02424994669854641,
0.028991589322686195,
-0.100542351603508,
-0.08098921924829483,
-0.029847566038370132,
0.01661016047000885,
-0.021827124059200287,
0.11725248396396637,
-0.01263838354498148,
-0.013272727839648724,
-0.0508677214384079,
0.0549270398914814,
-0.005790655966848135,
-0.0007898453040979803,
-0.022033069282770157,
0.016246411949396133,
0.025460360571742058,
-0.004927277099341154,
0.020982293412089348,
0.05125717446208,
0.03123687021434307,
-0.06434828788042068,
-0.12706176936626434,
-0.10926438868045807,
0.0595676563680172,
-0.0354791060090065,
0.0072270343080163,
0.08758123219013214,
-0.05391715094447136,
0.08139187097549438,
0.01514396257698536,
0.06577904522418976,
0.01839539408683777,
-0.008543543517589569,
-0.006390189286321402,
0.037149544805288315,
0.019247379153966904,
0.0839054211974144,
-0.08183899521827698,
0.08214513957500458,
0.024656346067786217,
0.029621558263897896,
-0.00406783539801836,
-0.037899430841207504,
-0.0383647121489048,
0.028727006167173386,
0.019380496814846992,
0.007788891438394785,
-0.058585893362760544,
0.007213602773845196,
-0.06719087064266205,
0.03246504068374634,
0.03241731971502304,
0.023226693272590637,
-0.011222479864954948,
0.03702687472105026,
0.003556664800271392,
0.04095403105020523,
-0.04247881472110748,
-0.0009782436536625028,
0.012751199305057526,
-0.007045935373753309,
-0.05509042367339134,
0.007394353859126568,
-0.05421916022896767,
-0.021990396082401276,
-0.11467184871435165,
-0.04206158593297005,
-0.0559912733733654,
-0.02397824078798294,
-0.03927737474441528,
0.019548872485756874,
-0.0013393762055784464,
0.05189993232488632,
0.015563481487333775,
0.0813404768705368,
-0.06885230541229248,
-0.0017396017210558057,
0.031413253396749496,
0.0003175931051373482,
0.020409438759088516,
0.039777882397174835,
0.032765232026576996,
0.028792046010494232,
0.030044885352253914,
-5.977885564334429e-8,
-0.07072097063064575,
-0.07997532933950424,
0.1274847537279129,
0.03870883211493492,
0.025017118081450462,
0.04450848698616028,
0.08019324392080307,
0.0325261652469635,
-0.03830299153923988,
0.00833786092698574,
0.09666317701339722,
0.02710208296775818,
-0.0695825144648552,
0.02130361646413803,
0.04341830313205719,
-0.034259140491485596,
0.08609820157289505,
0.07021749764680862,
-0.09290182590484619,
-0.05701792985200882,
-0.08025562763214111,
0.048687078058719635,
0.06272406876087189,
-0.09434852004051208,
0.01616906002163887,
-0.027181576937437057,
0.08682727068662643,
-0.022303497418761253,
-0.039467472583055496,
0.029432879760861397,
0.08237458020448685,
-0.04690627008676529,
0.08956150710582733,
0.007472096476703882,
0.030141932889819145,
0.025350941345095634,
0.017712904140353203,
-0.004177527502179146,
-0.030878467485308647,
0.0607399120926857,
-0.06788184493780136,
0.044707734137773514,
0.02518591471016407,
0.08669764548540115,
-0.0044042146764695644,
-0.09948913753032684,
0.02719765342772007,
0.005794372875243425,
0.05307425186038017,
0.05873272940516472,
-0.029238423332571983,
-0.023206869140267372,
0.00006102446059230715,
-0.05003906041383743,
0.011296861805021763,
0.05817047879099846,
-0.02239084430038929,
0.047949012368917465,
0.023834064602851868,
-0.0943903774023056,
0.02602999284863472,
-0.023620406165719032,
0.058149635791778564,
0.03145565465092659
] | 14,361 |
14,364 |
SALT spectroscopy of the candidate optical counterpart to SRGA J124404.1-632232/SRGE J124403.8-632231: a likely obscured Be X-ray binary
|
D. A. H. Buckley (South African Astronomical Observatory), M. Gromadzki (U. Warsaw), L. Townsend (SAAO), I. Monageng (SAAO), A. Lutovinov (IKI, RAS), V. Doroshenko (U. Tuebingen), A. Rau (MPE)
|
On 2021 January 29, commencing 23:34:05 UTC, we obtained spectra of the proposed optical counterpart to SRGA J124404.1-632232/SRGE J124403.8-632231 (ATel #14357, #14361), 2MASS J12440380-6322320, with the Southern African Large Telescope (SALT). The Robert Stobie Spectrograph was used in low resolution mode (R = 420), covering the region 3300-9000 Å. Two repeat spectra, with 1000 s exposures, were obtained and the combined spectrum shows a strong Hα emission line, a weaker Hβ emission line and a largely featureless continuum, rising to longer wavelengths, with several helium lines in absorption. The spectrum confirms the optical counterpart of SRGA J124404.1-632232/SRGE J124403.8-632231 as a highly reddened early-type Be star, consistent with the low Galactic latitude (-0.5 degrees) and the Gaia EDR3 distance estimate of 5.8 kpc (ATel #14357). This implies the system is a likely new Galactic Be/X-ray binary (BeXRB) system.
|
2021-02-02 00:04:00
|
optical,x-ray,binary,star
|
2021-02-02
|
00:04:00
| 936 |
[
-0.07432229071855545,
0.0022732107900083065,
-0.11152884364128113,
0.002553059021010995,
-0.009342855773866177,
0.039881765842437744,
-0.015139604918658733,
0.03829314187169075,
0.028716403990983963,
0.01787082478404045,
-0.07904324680566788,
-0.007248996756970882,
-0.08750127255916595,
-0.04219937324523926,
0.06138484925031662,
-0.015353363938629627,
0.07513590902090073,
-0.04931469261646271,
-0.012879288755357265,
-0.0018203994259238243,
0.06035264581441879,
-0.003278513206169009,
-0.028384055942296982,
-0.043097399175167084,
0.023130320012569427,
0.021585291251540184,
-0.0667547732591629,
-0.0060648429207503796,
0.03704205900430679,
0.03385660797357559,
0.0776311531662941,
0.017761869356036186,
-0.04036816582083702,
-0.0006500629242509604,
0.055901262909173965,
-0.01714044064283371,
0.05722451210021973,
-0.05789219215512276,
-0.006645208224654198,
0.0002071178751066327,
0.0067744627594947815,
-0.0282655768096447,
-0.025148633867502213,
-0.03563426434993744,
-0.05368973687291145,
-0.05281563848257065,
0.013402288779616356,
-0.05309465900063515,
-0.110383041203022,
-0.03584527596831322,
0.017231255769729614,
-0.004635892808437347,
-0.0005473204073496163,
0.017138078808784485,
0.054422613233327866,
0.03965809568762779,
-0.09716134518384933,
-0.02799610048532486,
0.11688277125358582,
-0.024385085329413414,
-0.02830231562256813,
-0.042167119681835175,
0.012737629935145378,
-0.05682642012834549,
0.04912872985005379,
0.018698226660490036,
-0.05097534507513046,
-0.0778145045042038,
0.09963592886924744,
-0.0322616770863533,
-0.05868737772107124,
0.02196907252073288,
-0.023432502523064613,
-0.005509371403604746,
-0.05208788439631462,
0.07795220613479614,
0.07967015355825424,
0.027797363698482513,
0.08827900141477585,
-0.03986704722046852,
0.05629442259669304,
-0.02585088275372982,
0.04491304233670235,
0.050334710627794266,
0.001531866379082203,
-0.005136517807841301,
-0.022142909467220306,
0.01354213710874319,
-0.045262258499860764,
-0.10025551915168762,
0.04569729045033455,
-0.041044242680072784,
-0.02350669726729393,
0.00306112552061677,
-0.03741931915283203,
0.004581862594932318,
0.019669897854328156,
-0.014694110490381718,
0.06867154687643051,
0.05466878041625023,
0.09011709690093994,
0.010750498622655869,
-0.01753646321594715,
0.046269409358501434,
-0.0933213159441948,
0.03778832405805588,
0.012443993240594864,
0.12705832719802856,
-0.02835017256438732,
0.004382758866995573,
-0.008953465148806572,
0.03924311697483063,
-0.09544268250465393,
-0.05767158418893814,
0.010801800526678562,
-0.011457831598818302,
-0.03827783092856407,
0.09326989948749542,
-0.06473762542009354,
-0.021862870082259178,
-0.05099250748753548,
0.06067720800638199,
0.02110077068209648,
0.04186883196234703,
0.12041760236024857,
0.017812225967645645,
-0.1262681931257248,
3.5981070252884184e-33,
0.09691385924816132,
0.053170278668403625,
0.009954165667295456,
-0.0380268394947052,
-0.03405393287539482,
0.006094298325479031,
-0.1179325059056282,
0.04435620829463005,
-0.03008154220879078,
0.0473264716565609,
0.00932928267866373,
0.0412529818713665,
0.016026943922042847,
-0.025352532044053078,
-0.02251034788787365,
0.021622251719236374,
0.06413758546113968,
-0.010600777342915535,
-0.04212808609008789,
0.0163593590259552,
-0.042902689427137375,
0.07988891750574112,
0.08048270642757416,
0.024673549458384514,
0.006673477124422789,
0.05915986746549606,
0.06803528964519501,
0.02337626926600933,
0.004783653188496828,
0.027053533121943474,
0.08166113495826721,
-0.010853134095668793,
-0.06106790900230408,
0.003937582019716501,
-0.026380958035588264,
-0.06048450246453285,
-0.07783230394124985,
-0.007195139769464731,
-0.048672087490558624,
-0.076005719602108,
0.036289114505052567,
0.05816379934549332,
-0.04192277789115906,
0.03819908946752548,
0.09500347822904587,
-0.06421896070241928,
0.043285321444272995,
0.015018208883702755,
0.07032962143421173,
0.06859461218118668,
-0.07560184597969055,
-0.06851810216903687,
-0.03341783955693245,
0.010038609616458416,
-0.03524284064769745,
0.014239933341741562,
0.07209945470094681,
0.0546761155128479,
0.04780839383602142,
0.018468176946043968,
0.006140161771327257,
-0.025664957240223885,
0.009498616680502892,
0.05878761038184166,
0.04628993943333626,
0.03698714077472687,
-0.04055873677134514,
0.03177250921726227,
-0.01837957464158535,
-0.003564452053979039,
0.014496264047920704,
0.06729409098625183,
0.10561905056238174,
-0.01792611926794052,
0.01984933763742447,
-0.02085893601179123,
0.021133216097950935,
0.033382512629032135,
0.015937821939587593,
0.08370699733495712,
-0.07757601141929626,
-0.02250555343925953,
0.015147819183766842,
-0.0649670958518982,
-0.10162654519081116,
0.02054080180823803,
-0.09448757022619247,
-0.06065436452627182,
0.016555245965719223,
-0.0375579372048378,
0.05525916442275047,
0.024733195081353188,
-0.10686629265546799,
-0.05553961545228958,
-0.10282252728939056,
-4.2351059446310775e-33,
0.04381953552365303,
0.01862514764070511,
-0.005881792865693569,
0.0192426647990942,
0.04693346843123436,
-0.012678851373493671,
0.03926536813378334,
0.025217240676283836,
-0.06805814057588577,
-0.05874188244342804,
0.14894291758537292,
0.031031396239995956,
-0.007334387861192226,
-0.06419281661510468,
-0.0029016369953751564,
-0.07642859220504761,
0.006782460026443005,
0.004804741125553846,
0.04801751300692558,
-0.008330080658197403,
0.04309866204857826,
0.05164376646280289,
0.026209944859147072,
-0.018698429688811302,
0.031840745359659195,
-0.039541419595479965,
0.09980391710996628,
0.002555838553234935,
-0.04192347452044487,
0.012906323187053204,
0.016985438764095306,
0.07882287353277206,
-0.03572208061814308,
-0.049630556255578995,
0.0038028236012905836,
-0.06108993664383888,
0.010822064243257046,
0.0239151231944561,
-0.08470338582992554,
-0.03056430257856846,
-0.013896641321480274,
0.07134207338094711,
-0.021272527053952217,
0.00011687073128996417,
0.001393776386976242,
0.010577978566288948,
-0.027313774451613426,
0.09054195880889893,
0.06640707701444626,
-0.08036920428276062,
-0.023816857486963272,
-0.08491910994052887,
0.02352900430560112,
-0.019539207220077515,
0.0814388245344162,
0.000853635894600302,
0.0034740741830319166,
0.03728646785020828,
-0.00274999113753438,
0.08512579649686813,
0.025446727871894836,
-0.0095004728063941,
0.028218954801559448,
-0.003927865531295538,
0.04632152244448662,
0.02589103952050209,
0.05269255116581917,
-0.015611451119184494,
0.05318503454327583,
0.026029085740447044,
0.0760294646024704,
-0.07668688893318176,
-0.05745531618595123,
0.03523438051342964,
0.0656668096780777,
0.0049285367131233215,
-0.06932208687067032,
-0.07006977498531342,
0.018043892458081245,
0.0007103562238626182,
-0.046520717442035675,
-0.012992847710847855,
0.015876969322562218,
0.02193773165345192,
0.12462703138589859,
-0.011469571851193905,
-0.08894836902618408,
-0.018924325704574585,
-0.009949852712452412,
-0.013847609050571918,
-0.01839371956884861,
0.04686234891414642,
-0.034964367747306824,
0.001447129063308239,
0.06538192182779312,
-5.6361088240919344e-8,
0.020104603841900826,
0.03693418204784393,
-0.006936832331120968,
0.031158242374658585,
0.05264807119965553,
-0.01881556399166584,
-0.03330120071768761,
-0.06585553288459778,
0.004415149334818125,
0.04880952090024948,
0.0008550942875444889,
-0.021128663793206215,
0.0007977364002726972,
-0.0795903354883194,
0.012926443479955196,
-0.03914277255535126,
-0.014395314268767834,
-0.10055218636989594,
-0.03374120220541954,
0.07662523537874222,
0.04575634002685547,
-0.011161072179675102,
0.07702124118804932,
-0.04284434765577316,
0.05597328394651413,
-0.043538689613342285,
-0.03116607666015625,
0.07323916256427765,
0.0550948828458786,
-0.04127124696969986,
0.06317370384931564,
-0.0026425430551171303,
0.07150181382894516,
-0.057758837938308716,
-0.028383295983076096,
-0.022082427516579628,
-0.0674583837389946,
0.06590732932090759,
-0.001322559779509902,
0.0011874063638970256,
-0.017674554139375687,
-0.06366954743862152,
0.02820238471031189,
0.026141762733459473,
-0.08804699033498764,
0.05094551295042038,
-0.03075936995446682,
-0.033631857484579086,
-0.10863073915243149,
-0.02111186273396015,
-0.030686840415000916,
-0.029439592733979225,
-0.04132863134145737,
-0.04605083912611008,
-0.11563673615455627,
0.010111269541084766,
-0.006819864735007286,
0.019909963011741638,
-0.028690582141280174,
0.0029311508405953646,
0.14298544824123383,
-0.06976666301488876,
-0.14022013545036316,
-0.05098274350166321
] | 14,362 |
14,365 |
Negative superhumps in the cataclysmic variable KR Aur
|
S. Boeva, G. Latev, R. Zamanov (Institute of Astronomy and NAO, Bulgaria)
|
We report a discovery of negative superhumps in the V light curve of the cataclysmic variable KR Aur with period 3.281 ± 0.005 h (0.13671 d) in January 2021. Our observations are obtained with the 2.0 m RCC telescope and the 50/70 cm Schmidt telescope at the National Astronomical Observatory Rozhen (Bulgaria) in 4 consecutive nights on 18 - 21 January 2021. The star is in a bright photometric state with average V band magnitude of about 14.2. The Lomb-Scargle periodogram and the PDM analysis reveals a well defined period of 3.281 ± 0.005 h. The period found is significantly shorter than the 3.771 h period of negative superhumps reported by Kozhevnikov (2007, MNRAS, 378, 955). Fig. 1 shows a 7 hours light curve obtained on 20 January 2021 in V band. The amplitude of variations is 0.4 magnitudes. On Fig. 2 we plot the phase curve of the all V data (from all 4 nights) folded with the detected superhump period P=3.281 h. Acknowledgment: project KP-6-H28/2 Binary stars with compact object.
|
2021-02-02 21:58:00
|
optical,binary,cataclysmic variable,star,variables
|
2021-02-02
|
21:58:00
| 999 |
[
-0.05646897479891777,
0.026146139949560165,
0.01675029844045639,
0.07121335715055466,
-0.028125328943133354,
-0.0434747152030468,
-0.0813029482960701,
0.08016884326934814,
0.045122817158699036,
0.011301128193736076,
0.0604599192738533,
-0.045502662658691406,
-0.010002722963690758,
0.011036454699933529,
0.0060907648876309395,
-0.02589505910873413,
0.010862622410058975,
-0.12317095696926117,
0.03883969783782959,
0.09003222733736038,
0.030260561034083366,
-0.04798799380660057,
-0.08495444059371948,
-0.01925957016646862,
0.028111109510064125,
-0.016885118559002876,
-0.07675451040267944,
-0.03670445829629898,
0.014981921762228012,
0.008463217876851559,
-0.0256003700196743,
0.02680065855383873,
-0.013460577465593815,
0.023686254397034645,
0.0730249211192131,
-0.02433515153825283,
0.06295356154441833,
-0.04590686038136482,
-0.04123782366514206,
0.01650611311197281,
-0.013936922885477543,
-0.0724518671631813,
-0.053733281791210175,
-0.006472710054367781,
0.03659147024154663,
0.07153572887182236,
-0.005947346333414316,
-0.010826410725712776,
-0.06460583209991455,
0.05623125657439232,
0.03270435333251953,
0.018311575055122375,
0.023105479776859283,
0.042172618210315704,
0.015439191833138466,
0.07271510362625122,
-0.011827011592686176,
-0.05616239085793495,
0.042239535599946976,
-0.045505646616220474,
0.009041234850883484,
0.0207675714045763,
-0.07554494589567184,
-0.057131607085466385,
0.06690908968448639,
0.038974057883024216,
-0.10080276429653168,
0.027023697271943092,
0.02666783519089222,
0.07308637350797653,
0.008297198452055454,
-0.0018774564377963543,
0.012389634735882282,
-0.06820544600486755,
-0.021515237167477608,
0.036376312375068665,
0.029309576377272606,
-0.000469156657345593,
0.11073800921440125,
-0.05469237640500069,
0.06659466028213501,
0.007969540543854237,
-0.017543736845254898,
0.0620427168905735,
-0.008383515290915966,
-0.030246242880821228,
0.052931174635887146,
0.0219111368060112,
-0.013793755322694778,
0.015203907154500484,
-0.032678619027137756,
-0.08977106213569641,
-0.05359572172164917,
-0.042554277926683426,
0.016817307099699974,
0.05075372755527496,
0.03278043866157532,
0.019859513267874718,
0.11360219866037369,
0.024845175445079803,
0.03197899088263512,
-0.07843419164419174,
-0.02923341654241085,
0.0012460772413760424,
-0.00843898020684719,
0.002640173537656665,
0.03525221720337868,
0.05358221381902695,
0.0032773222774267197,
0.09022373706102371,
-0.031311605125665665,
0.03352813795208931,
0.025326848030090332,
-0.053724683821201324,
0.13997918367385864,
-0.020292075350880623,
0.01110331155359745,
0.15029749274253845,
-0.07660308480262756,
-0.02981458604335785,
0.03545919433236122,
0.08436664938926697,
0.02493978664278984,
0.09398262202739716,
0.08105388283729553,
0.07644447684288025,
-0.07535138726234436,
5.504771719291631e-33,
0.06009523943066597,
-0.036959461867809296,
0.04749029129743576,
-0.04909408837556839,
-0.010001868940889835,
0.048113252967596054,
-0.05702976882457733,
0.03452508896589279,
-0.07151126116514206,
0.03152063861489296,
-0.05813116952776909,
-0.05292820930480957,
0.053163908421993256,
-0.014020171947777271,
-0.02760833501815796,
0.0028124589007347822,
0.05046019330620766,
-0.030645057559013367,
-0.021440966054797173,
0.027447132393717766,
-0.002973326714709401,
-0.003834074828773737,
0.0065493714064359665,
-0.06250028312206268,
0.05409959331154823,
0.029713377356529236,
0.005540600977838039,
-0.04010948911309242,
-0.06787607073783875,
-0.008416686207056046,
0.023624006658792496,
-0.010100186802446842,
-0.04966980591416359,
0.087825246155262,
-0.07173319905996323,
-0.0255246851593256,
-0.016186125576496124,
0.021554075181484222,
-0.0949547216296196,
-0.02851281687617302,
0.06431970000267029,
0.04587265104055405,
-0.020460231229662895,
-0.04833829030394554,
0.03805338963866234,
0.04797874763607979,
0.11963287740945816,
0.0059233601205050945,
-0.016274869441986084,
0.04611637815833092,
-0.0010112043237313628,
-0.017300991341471672,
-0.1401200294494629,
-0.02950945310294628,
0.0039055102970451117,
0.0637439712882042,
0.010258020833134651,
-0.015736699104309082,
-0.029173197224736214,
0.018405305221676826,
0.11112450808286667,
-0.028535593301057816,
0.06698574125766754,
-0.03245687112212181,
-0.01748509332537651,
0.008634055964648724,
-0.051247596740722656,
0.04005303233861923,
-0.056864574551582336,
0.0006658630445599556,
-0.0529346764087677,
0.04437347128987312,
0.07251566648483276,
-0.08701891452074051,
0.04766744002699852,
-0.014405873604118824,
0.0518166720867157,
0.007657570764422417,
-0.04031621664762497,
0.08042768388986588,
-0.055037785321474075,
-0.026871494948863983,
0.04673873260617256,
-0.08814061433076859,
-0.048243895173072815,
-0.011263413354754448,
0.02168041467666626,
-0.014916173182427883,
-0.018755396828055382,
-0.08099028468132019,
-0.002548924880102277,
-0.04332175850868225,
-0.003268482629209757,
0.004334064666181803,
-0.15690672397613525,
-6.610712069375764e-33,
0.032962799072265625,
-0.023583825677633286,
-0.001308382605202496,
0.038386404514312744,
0.06190575286746025,
0.06934516876935959,
-0.013654839247465134,
0.10881160199642181,
-0.05747707188129425,
-0.06063894182443619,
0.14298279583454132,
0.05015173181891441,
-0.020854635164141655,
0.0029363117646425962,
0.08010691404342651,
-0.02697092294692993,
0.03212421387434006,
-0.027755007147789,
0.02046576701104641,
-0.031181760132312775,
-0.022703733295202255,
0.01244824007153511,
-0.017727231606841087,
-0.04122726991772652,
0.024199917912483215,
-0.014401715248823166,
0.0771651342511177,
-0.03899431601166725,
-0.024862170219421387,
0.036617666482925415,
-0.07098495960235596,
0.054149080067873,
-0.03567953780293465,
0.010098380967974663,
-0.004575635306537151,
0.04347172752022743,
-0.05387461557984352,
-0.04725824296474457,
-0.04753870889544487,
-0.024331199005246162,
-0.02069300226867199,
0.12998421490192413,
0.036484550684690475,
-0.008291514590382576,
-0.028429308906197548,
0.009600155055522919,
0.02682049572467804,
0.07693901658058167,
0.07226194441318512,
-0.05999606475234032,
-0.04465115815401077,
-0.14905999600887299,
-0.014978662133216858,
0.07287294417619705,
-0.012691905722022057,
0.012924537993967533,
-0.04396333917975426,
0.018115069717168808,
0.03166243061423302,
0.006553977262228727,
-0.027428848668932915,
-0.03768255561590195,
-0.0302124060690403,
-0.07487048953771591,
-0.023333251476287842,
-0.06956157833337784,
0.00020166527247056365,
-0.005642560310661793,
-0.014143174514174461,
-0.048899095505476,
0.05768013373017311,
-0.02966383285820484,
-0.04445735365152359,
0.0003698152140714228,
0.05679786950349808,
0.0010745335603132844,
0.01525113731622696,
0.02925516478717327,
0.021016694605350494,
-0.052702225744724274,
-0.09877323359251022,
-0.0324862040579319,
-0.01700800471007824,
0.009238701313734055,
0.01841650903224945,
0.00672437297180295,
-0.053313255310058594,
0.025679076090455055,
-0.0208874698728323,
0.02112015336751938,
-0.06881431490182877,
0.01420404389500618,
-0.031512025743722916,
0.08420559763908386,
0.09293370693922043,
-5.977972961090927e-8,
0.08104980736970901,
0.036112263798713684,
0.01553826779127121,
-0.0023626030888408422,
0.07941321283578873,
-0.01829729788005352,
-0.022022424265742302,
0.04373675957322121,
-0.029171336442232132,
0.10502608120441437,
0.0913226306438446,
-0.05726411193609238,
-0.03309250250458717,
-0.08463488519191742,
-0.02082541026175022,
0.02339436300098896,
0.007736849132925272,
-0.01675449125468731,
-0.00726493913680315,
0.020708268508315086,
0.001893684035167098,
-0.022318784147500992,
-0.03794928267598152,
-0.072653628885746,
0.023196982219815254,
-0.01987791433930397,
-0.014018625020980835,
-0.007765986956655979,
-0.04169590026140213,
-0.12320009618997574,
0.008900290355086327,
0.0559646412730217,
-0.006652321666479111,
-0.07481997460126877,
-0.06480932980775833,
-0.002082676626741886,
-0.08364272862672806,
0.06484141945838928,
0.07944198697805405,
0.10317327082157135,
0.004806340206414461,
-0.0341375507414341,
-0.002814102917909622,
-0.010370871052145958,
-0.05232764780521393,
0.023479100316762924,
0.05143727734684944,
-0.11287964135408401,
-0.054636161774396896,
0.016459116712212563,
0.007521661464124918,
0.07993211597204208,
0.02691134810447693,
-0.02557157538831234,
-0.01796790398657322,
0.045687105506658554,
-0.030142400413751602,
-0.0445735789835453,
-0.050355974584817886,
0.02460634522140026,
0.05285295471549034,
-0.07625816762447357,
-0.12135543674230576,
-0.001804626197554171
] | 14,363 |
14,366 |
Discovery of 8 ASAS-SN Supernova Candidates
|
J. Brimacombe (Coral Towers Observatory), I. Cruz (Cruz Observatory), P. Vallely, K. Z. Stanek, C. S. Kochanek, Z. Way, D. Desai, S. Bose, T. A. Thompson (Ohio State), B. J. Shappee (IfA-Hawaii), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), Subo Dong, Ping Chen (KIAA-PKU), M. Stritzinger, S. Holmbo (Aarhus), G. Masi (Virtual Telescope Project, Ceccano, Italy), M. R. Kendurkar (Prince George Astronomical Observatory)
|
During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014), using data from the quadruple 14-cm "Brutus" telescope in Haleakala, Hawaii, the quadruple 14-cm "Leavitt" telescope in Fort Davis, Texas, the quadruple 14-cm "Payne-Gaposchkin" telescope in Sutherland, South Africa, and the quadruple 14-cm "Cassius" and "Paczynski" telescopes in Cerro Tololo, Chile, we discovered several new transient sources. Properties of the supernovae, as well as associated finding charts showing the archival imaging (left) and the follow-up confirmation image (right) are included in the table below:
Follow-up observations are encouraged.
While we are participating in the TNS system to minimize potential confusion, ASAS-SN will continue using ASASSN-20xx transient names as our primary nomenclature (including supernovae, but also other classes of transients), and we encourage others to do the same. We prefer merging the names as ASASSN-20xx (AT 2020xyz) to preserve, rather than anonymize, the origin of the transient.
We would like to thank Las Cumbres Observatory and its staff for their continued support of ASAS-SN. ASAS-SN is funded in part by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, NSF grants AST-1515927 and AST-1908570, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics (CCAPP) at OSU, the Chinese Academy of Sciences South America Center for Astronomy (CASSACA), and the Villum Fonden (Denmark). For more information about the ASAS-SN project, see the ASAS-SN Homepage and the list of all ASAS-SN transients.
|
2021-02-04 00:30:00
|
optical,supernovae,transient
|
2021-02-04
|
00:30:00
| 1,635 |
[
-0.0386267825961113,
-0.0875392034649849,
-0.006087773945182562,
0.015694456174969673,
-0.027445167303085327,
-0.07427971810102463,
-0.1271340399980545,
-0.04206094890832901,
-0.054220423102378845,
-0.023574836552143097,
-0.01737392321228981,
-0.09350116550922394,
0.008041460998356342,
-0.05810654163360596,
0.01847331039607525,
0.026493143290281296,
0.07443814724683762,
-0.09254562854766846,
0.015828363597393036,
0.0016849130624905229,
0.001691385405138135,
-0.01903999224305153,
-0.06158823147416115,
0.04045802354812622,
0.04232531413435936,
-0.00028043572092428803,
-0.08520287275314331,
-0.051147155463695526,
0.002158768940716982,
-0.045877110213041306,
-0.043409671634435654,
0.0685088187456131,
-0.043003495782613754,
0.01042395830154419,
0.06019751355051994,
-0.009611894376575947,
-0.005381936207413673,
-0.0737776905298233,
-0.01596015878021717,
-0.010717778466641903,
0.003405885072425008,
-0.0424015037715435,
0.00642193341627717,
0.022761156782507896,
-0.02001885138452053,
-0.05427326261997223,
-0.05884592607617378,
-0.020157255232334137,
-0.004221595823764801,
0.042322978377342224,
-0.03682846575975418,
-0.041079964488744736,
0.017799243330955505,
0.04209499433636665,
0.07466217130422592,
0.03628166392445564,
-0.042628128081560135,
-0.10446582734584808,
0.1367855668067932,
-0.000992251792922616,
0.04153347387909889,
0.007084779441356659,
-0.0811409056186676,
-0.003758462378755212,
-0.02207624725997448,
0.05951666086912155,
-0.07092296332120895,
-0.03412722796201706,
-0.003388837678357959,
-0.018806759268045425,
0.015341204591095448,
0.007945400662720203,
-0.038412414491176605,
0.025959616526961327,
0.013495494611561298,
0.0602681040763855,
0.09266167879104614,
0.0078046321868896484,
0.05773396044969559,
-0.04790749028325081,
0.06939990818500519,
-0.020049164071679115,
0.02530456706881523,
0.010979220271110535,
-0.012226415798068047,
-0.0325012132525444,
-0.07920445501804352,
0.08759894967079163,
0.004864646587520838,
-0.04418205842375755,
0.06936797499656677,
-0.008748668245971203,
-0.10457943379878998,
-0.0707981288433075,
-0.014926688745617867,
0.03793422877788544,
0.043134886771440506,
-0.042254816740751266,
0.03416323661804199,
0.04667191207408905,
0.0618775300681591,
-0.010072405450046062,
-0.038932155817747116,
0.07865816354751587,
-0.021624697372317314,
0.041947633028030396,
0.04426034912467003,
0.013931114226579666,
0.010302307084202766,
0.015264082700014114,
0.006575630512088537,
0.022243887186050415,
0.008240045048296452,
-0.05634507164359093,
-0.0020154640078544617,
0.03076637163758278,
-0.019054962322115898,
0.08308403939008713,
-0.029180612415075302,
-0.06058857962489128,
-0.009841498918831348,
0.07042057067155838,
0.0947883352637291,
0.07936027646064758,
0.11151740700006485,
0.05972127988934517,
-0.13404884934425354,
1.7971804358645708e-33,
0.11626604944467545,
0.031270626932382584,
0.032906047999858856,
0.0014246494974941015,
0.026716431602835655,
-0.05810052156448364,
-0.06127854064106941,
0.06155584007501602,
-0.03365306928753853,
-0.006780543830245733,
-0.05695284530520439,
0.052322328090667725,
0.040644679218530655,
-0.02654927223920822,
0.022125503048300743,
-0.0006359220133163035,
0.033484749495983124,
-0.020593902096152306,
-0.13738605380058289,
0.007813233882188797,
-0.0578535832464695,
0.008621464483439922,
-0.0035478377249091864,
0.026851972565054893,
-0.016442453488707542,
0.03211907297372818,
0.04013894870877266,
0.05112006887793541,
-0.010764297097921371,
0.05375592038035393,
0.007367346901446581,
-0.055009882897138596,
0.007498868741095066,
0.07383159548044205,
-0.01770361326634884,
-0.0877506360411644,
-0.05260109528899193,
-0.03465608134865761,
-0.09074843674898148,
-0.004656190983951092,
0.06429031491279602,
0.07001146674156189,
-0.020174989476799965,
0.014044255018234253,
-0.005045699886977673,
-0.041785016655921936,
0.0586223267018795,
0.03729001805186272,
0.005354968830943108,
0.014251267537474632,
0.000337475590640679,
0.02671165205538273,
-0.12965169548988342,
-0.047310687601566315,
0.038454774767160416,
0.08193586766719818,
0.015456505119800568,
-0.05064728483557701,
0.0012430548667907715,
0.05234510079026222,
0.005327140912413597,
-0.047372035682201385,
-0.014893746934831142,
0.08013860881328583,
-0.050717055797576904,
0.062414634972810745,
-0.04774618521332741,
0.09429895877838135,
-0.015902511775493622,
0.00439621414989233,
-0.01680542342364788,
-0.000152238950249739,
0.10830177366733551,
-0.08406016230583191,
0.070623978972435,
-0.06957240402698517,
0.021636836230754852,
0.015665950253605843,
-0.04158615320920944,
0.07614251226186752,
-0.047719575464725494,
-0.01048995926976204,
0.03748372942209244,
-0.08949233591556549,
-0.020110616460442543,
-0.07932955771684647,
-0.018641287460923195,
-0.032427504658699036,
0.02183184213936329,
-0.0906161218881607,
0.02241245098412037,
-0.023041076958179474,
0.0905613899230957,
-0.03548477217555046,
-0.12558989226818085,
-2.9804778651244105e-33,
-0.017154354602098465,
-0.006769860163331032,
0.0460469089448452,
0.021697020158171654,
-0.013197329826653004,
-0.015232770703732967,
0.06627213209867477,
-0.047608762979507446,
-0.05539929121732712,
-0.08641855418682098,
-0.0038333770353347063,
0.07623052597045898,
-0.02371811680495739,
-0.13842980563640594,
0.054666079580783844,
0.024574486538767815,
0.04778037592768669,
-0.06119358912110329,
-0.0672018975019455,
-0.00535221491008997,
0.05349126085639,
-0.013570067472755909,
-0.03522215411067009,
-0.00886357482522726,
0.03785189241170883,
-0.022792866453528404,
0.04687737673521042,
-0.03223179280757904,
0.014755919575691223,
0.04692519083619118,
-0.07225799560546875,
-0.005994943901896477,
-0.012122131884098053,
0.0676957294344902,
-0.015705982223153114,
0.020844364538788795,
0.041118256747722626,
0.0060613276436924934,
-0.07994788140058517,
0.01264309510588646,
-0.03390391170978546,
0.08624399453401566,
-0.05369484797120094,
0.020093651488423347,
0.00693035451695323,
0.049285996705293655,
0.030336102470755577,
0.08717881143093109,
-0.01400145422667265,
0.01748598739504814,
-0.03734677657485008,
-0.0092205461114645,
-0.027335967868566513,
0.11329156905412674,
-0.0027584978379309177,
0.05475616082549095,
-0.005643957760185003,
0.11973254382610321,
0.00416004890576005,
0.018166372552514076,
0.03691263124346733,
-0.04506254941225052,
0.035211142152547836,
0.03249761089682579,
0.08856086432933807,
0.02151249349117279,
0.013422111049294472,
0.063367560505867,
-0.07810189574956894,
0.10643891990184784,
0.01304797176271677,
-0.08002008497714996,
-0.06214194372296333,
-0.005169628653675318,
0.08372746407985687,
0.06174277886748314,
-0.010369963012635708,
-0.08603215217590332,
-0.04390019550919533,
0.001235854928381741,
-0.0465187206864357,
0.003657587803900242,
0.003958707209676504,
0.03258766606450081,
0.04475066810846329,
0.006136697717010975,
0.012656263075768948,
-0.04185613989830017,
-0.013276214711368084,
0.00554703501984477,
-0.026494933292269707,
0.0038057533092796803,
0.010345336981117725,
0.02646677754819393,
0.05557217076420784,
-6.087552151257114e-8,
-0.0013116705231368542,
0.045250605791807175,
-0.09847468137741089,
0.011211428791284561,
0.03466760367155075,
-0.06081051379442215,
-0.0035199641715735197,
0.08089246600866318,
0.013277565129101276,
-0.013506599701941013,
0.022700689733028412,
-0.0420202873647213,
-0.008970610797405243,
-0.04516466334462166,
0.03824416548013687,
-0.054600540548563004,
0.024578265845775604,
-0.05167042464017868,
-0.044908199459314346,
-0.000718882423825562,
0.02310318499803543,
0.06598696112632751,
0.06399352103471756,
-0.04915871098637581,
-0.04736501723527908,
0.03365752100944519,
-0.019392048940062523,
0.07433808594942093,
0.0077582248486578465,
-0.05884995684027672,
-0.025927869603037834,
-0.02246299758553505,
-0.0533740296959877,
-0.09868674725294113,
0.033929191529750824,
0.031400956213474274,
-0.05713311955332756,
0.04600836709141731,
0.13686740398406982,
0.08431817591190338,
0.003482196480035782,
-0.026839304715394974,
-0.037466179579496384,
0.043939657509326935,
-0.00017342214414384216,
0.08678429573774338,
-0.019463231787085533,
-0.02272910252213478,
0.059421248733997345,
0.017543140798807144,
-0.01839565485715866,
-0.051772620528936386,
0.004346040077507496,
-0.06295347958803177,
0.025428099557757378,
0.05051814764738083,
0.047794558107852936,
-0.08118955790996552,
-0.016509346663951874,
0.02147977612912655,
0.09995824098587036,
-0.03597545623779297,
-0.10766203701496124,
-0.03598763793706894
] | 14,364 |
14,367 |
Detection of softening of X-ray flare from GX 339-4 using MAXI/GSC
|
Manoj Mandal (MCC), Sabyasachi Pal (MCC/ICSP), Debashis Saha (MCC), and Mangal Hazra (MCC)
|
Recently, X-ray flaring activity from GX 339-4 is reported in hard X-ray using Swift/BAT (15-50 keV) (ATel #14351) and Integral (ATel #14354). We report the detection of flaring activity from the source in the soft X-ray band using MAXI/GSC (2-20 keV). The X-ray flux has started to increase significantly in soft energy bands of MAXI/GSC from MJD 59238 (2021-01-24) and reached a maximum value of 36.6±6.4 mCrab (2-4 keV) on MJD 59248 (2021-02-03). Corresponding flux in the 4-10 keV has reached a maximum value of 67±8 mCrab. The hardness ratio HR1 (10-20 keV/4-10 keV) is varied between 0.4-0.9 and the hardness ratio HR2 (10-20 keV/2-4 keV) is varied between 0.5-0.9 respectively during the time-range MJD 59238-59248.
The daily average X-ray flux, as measured by Swift/BAT (15-50 keV) is 0.15±0.015 Crab on 59248 (2021-02-03).
We encourage further multi-wavelength observations.
This research has made use of the MAXI data provided by RIKEN, JAXA, and the MAXI team.
|
2021-02-05 00:16:00
|
x-ray,black hole,transient,request for observations
|
2021-02-05
|
00:16:00
| 974 |
[
-0.07026559859514236,
-0.08568122982978821,
-0.012713729403913021,
0.02203051745891571,
0.037881460040807724,
-0.06733426451683044,
0.06553833931684494,
0.10915970802307129,
-0.10044965147972107,
0.0007860402693040669,
-0.03413893282413483,
-0.055267561227083206,
0.04555642232298851,
0.07814250141382217,
0.017499001696705818,
0.010697177611291409,
0.048697903752326965,
-0.07734838128089905,
-0.058984145522117615,
0.07268685102462769,
0.0920175313949585,
-0.020226361230015755,
-0.006767155136913061,
-0.016893552616238594,
0.0269112940877676,
0.022051092237234116,
-0.030299952253699303,
-0.12596900761127472,
0.013693403452634811,
-0.08220016211271286,
0.01551722176373005,
0.058716434985399246,
0.004234486725181341,
0.012288818135857582,
0.05239250138401985,
-0.015361006371676922,
-0.05750912427902222,
-0.03096342831850052,
-0.05799125134944916,
-0.03515759855508804,
-0.08022917807102203,
-0.03632481396198273,
0.0786660686135292,
-0.016874998807907104,
-0.019280437380075455,
-0.011952118016779423,
0.06091717630624771,
-0.08326426893472672,
0.005975204054266214,
0.07802353799343109,
0.07679267972707748,
-0.0489434152841568,
-0.006393115967512131,
0.029402120038866997,
0.0884728729724884,
0.0149062629789114,
-0.13472728431224823,
-0.009453578852117062,
0.03762032836675644,
0.037172894924879074,
0.04797808825969696,
0.017836647108197212,
0.023690029978752136,
-0.01762288436293602,
0.033173978328704834,
-0.07116211950778961,
0.023944644257426262,
-0.059619974344968796,
0.007546819280833006,
-0.04016944766044617,
0.057891279458999634,
0.016423795372247696,
-0.038142211735248566,
-0.09018439799547195,
-0.023076407611370087,
0.030565451830625534,
0.07948467880487442,
-0.028860343620181084,
0.025748727843165398,
-0.034383222460746765,
-0.07777456939220428,
0.014116673730313778,
0.0005276637384667993,
-0.018682541325688362,
-0.00562346400693059,
0.031196139752864838,
0.019294170662760735,
0.0254201777279377,
-0.0012592058628797531,
0.08328085392713547,
0.09758354723453522,
0.1222958192229271,
-0.07439349591732025,
0.04133898764848709,
0.029342418536543846,
0.0009935665875673294,
0.06163954734802246,
0.048934102058410645,
-0.014293570071458817,
0.004458858165889978,
0.010984111577272415,
0.003957398701459169,
-0.0011263462947681546,
0.08879824727773666,
-0.03563664108514786,
-0.1559038609266281,
0.010099499486386776,
0.07524433732032776,
-0.08646170794963837,
0.01629108376801014,
-0.012631367892026901,
0.024883711710572243,
-0.024239659309387207,
-0.024228587746620178,
-0.014337739907205105,
0.010913481004536152,
0.03605187311768532,
0.03711311146616936,
-0.12334763258695602,
-0.045981265604496,
-0.035455118864774704,
-0.023878229781985283,
0.01825859397649765,
0.06114862114191055,
0.0231351125985384,
-0.057414960116147995,
-0.04611523821949959,
6.493972256027664e-33,
-0.005799050442874432,
0.054594431072473526,
-0.010209981352090836,
-0.09104947000741959,
-0.0973992794752121,
-0.07767600566148758,
0.008587346412241459,
0.0594467893242836,
-0.013897260650992393,
0.038672275841236115,
-0.05374499410390854,
0.12729355692863464,
0.01905585639178753,
-0.06787501275539398,
-0.0436255969107151,
-0.0681234672665596,
0.05229001119732857,
-0.016176830977201462,
-0.08885480463504791,
0.011356855742633343,
-0.06446617096662521,
-0.019916944205760956,
0.01701214537024498,
0.01938612200319767,
-0.01582193560898304,
0.05127660185098648,
0.03807046636939049,
-0.0404280349612236,
-0.06011130288243294,
0.042793624103069305,
0.0003754648205358535,
-0.06312498450279236,
0.017184922471642494,
0.07515548914670944,
-0.026791980490088463,
0.028853921219706535,
-0.07720236480236053,
-0.0037632682360708714,
-0.046882711350917816,
-0.021408168599009514,
-0.06081767380237579,
0.04718194901943207,
-0.0029566483572125435,
-0.02559659257531166,
0.043654557317495346,
0.06302393972873688,
-0.021123617887496948,
0.020656270906329155,
0.004178408067673445,
-0.014334452338516712,
0.0025080854538828135,
-0.02615460939705372,
-0.017125211656093597,
0.03599337860941887,
0.12172109633684158,
0.0941459909081459,
0.052246712148189545,
0.015953397378325462,
-0.0465485043823719,
0.06298884749412537,
0.05966281145811081,
-0.012720146216452122,
0.0007469495176337659,
0.0796150490641594,
-0.015410980209708214,
0.03740387037396431,
-0.05655672028660774,
0.026173453778028488,
-0.044933270663022995,
-0.003466343740001321,
-0.05731220543384552,
-0.0402894988656044,
0.09454221278429031,
-0.0640033707022667,
0.13594231009483337,
-0.02582416869699955,
0.052154652774333954,
0.07717888802289963,
-0.021965941414237022,
-0.006974055431783199,
-0.051079005002975464,
0.014794910326600075,
0.048230331391096115,
-0.07052452117204666,
-0.12425267696380615,
0.055279046297073364,
-0.01923273503780365,
0.022254370152950287,
0.012362788431346416,
0.040398046374320984,
-0.00344931916333735,
-0.10716965049505234,
0.010823564603924751,
-0.057080987840890884,
-0.07789330929517746,
-5.756766116697251e-33,
0.03305211663246155,
-0.020730864256620407,
0.016157429665327072,
0.05278855934739113,
0.045525189489126205,
0.0420331209897995,
0.03261643275618553,
0.039645273238420486,
-0.001267878687940538,
-0.07441139966249466,
0.07260745018720627,
0.09155041724443436,
-0.10704744607210159,
-0.044309720396995544,
0.017261704429984093,
-0.0008864590781740844,
0.008413362316787243,
-0.005465890746563673,
-0.07512470334768295,
0.014852059073746204,
0.03775198012590408,
0.08796118199825287,
0.043850287795066833,
-0.0741189494729042,
-0.006302397698163986,
0.014472114853560925,
0.027752239257097244,
-0.0388680174946785,
0.02420726791024208,
0.011894668452441692,
-0.05793844163417816,
0.030969496816396713,
-0.057209208607673645,
0.015057428739964962,
-0.004302630666643381,
-0.09782897680997849,
0.07576504349708557,
0.07845481485128403,
-0.05756911635398865,
-0.05243856832385063,
0.013857954181730747,
0.11992785334587097,
0.024100258946418762,
0.04321717843413353,
-0.04221904277801514,
0.08510563522577286,
0.02619856595993042,
-0.04666648432612419,
0.027589354664087296,
0.01231642160564661,
0.05995488166809082,
-0.11279234290122986,
-0.0006874454556964338,
0.0464089959859848,
-0.01872984506189823,
0.0324949286878109,
0.020616205409169197,
0.01648498885333538,
-0.04244581237435341,
-0.028202159330248833,
0.046023059636354446,
-0.010744817554950714,
0.006903802044689655,
-0.030124228447675705,
-0.00808609277009964,
-0.025566305965185165,
0.026458417996764183,
0.06256279349327087,
-0.0030064282473176718,
0.015053747221827507,
0.057158369570970535,
-0.06323488801717758,
0.0004193317727185786,
0.019069191068410873,
-0.04261353611946106,
0.03796101734042168,
-0.009284334257245064,
-0.09816818684339523,
0.0019228653982281685,
-0.015910517424345016,
0.02108500711619854,
0.09537412226200104,
0.009588976390659809,
-0.01317340973764658,
0.10572769492864609,
0.01826404221355915,
-0.018296126276254654,
-0.004470359068363905,
0.043193478137254715,
-0.03721977397799492,
-0.06208640709519386,
-0.01151131559163332,
0.06013013795018196,
0.03181270882487297,
0.013540332205593586,
-6.057668855419251e-8,
-0.06613823771476746,
0.017636163160204887,
-0.07579053938388824,
-0.016849199309945107,
0.06499605625867844,
0.01473293174058199,
-0.06086498498916626,
0.029573671519756317,
0.08292808383703232,
-0.01453235000371933,
0.024973727762699127,
-0.020754961296916008,
0.02853807993233204,
-0.03907518833875656,
0.016912216320633888,
-0.08800902962684631,
-0.02445089817047119,
-0.02099498175084591,
-0.004675787873566151,
-0.03731420263648033,
-0.027583066374063492,
-0.03942190483212471,
0.07416456192731857,
-0.02150316908955574,
-0.01255508977919817,
0.012188656255602837,
-0.011750641278922558,
0.012808572500944138,
0.03874902054667473,
0.017708774656057358,
-0.04838917404413223,
0.027916748076677322,
0.07900867611169815,
-0.0032904765103012323,
-0.03678544610738754,
0.039856355637311935,
-0.030686132609844208,
0.008074391633272171,
-0.016853850334882736,
0.13327722251415253,
-0.01400671899318695,
-0.04815936088562012,
0.05868145078420639,
0.02847040630877018,
-0.08314446359872818,
-0.01608464866876602,
-0.008688589558005333,
-0.08170799911022186,
0.00896124355494976,
0.03444184362888336,
0.022074179723858833,
-0.021166928112506866,
-0.03804374113678932,
-0.11547724902629852,
-0.05482552945613861,
0.0455886572599411,
-0.02315628156065941,
-0.02559303306043148,
-0.0024169376119971275,
-0.010846571996808052,
0.019752465188503265,
-0.06162618100643158,
-0.04926567152142525,
-0.0019999444484710693
] | 14,365 |
14,368 |
The discovery of the photometric variability of a new SR-type variable star in the M31 galaxy, while searching for variable red sources using V and I observations from the Galati Astronomical Observatory
|
J. O. Tercu (Galati Astronomical Observatory - C73), G. C. Neagu (Galati Astronomical Observatory - C73)
|
We report the discovery of a new SR-type variable star located in the M31 galaxy. We cross-identify it as 2MASS J00405619+4045461 = Gaia EDR3 381154123908000512 = [M31] Galati V23. Gaia EDR3 381154123908000512 has J2000 coordinates R.A. = 00h40m56.206s Decl. = +40d45m46.173s, r = 19.75 from ZTF DR4. The range is 19.4-20.1 r. The time of maxima is 2458228 HJD. During the RSG search in M31 using the 0.4 m Ritchey-Chretien telescope with SBIG STL-6303E CCD camera using 10 exposures of 120s in V and I filters, we observed a very high V-I difference. Gaia EDR3 BP-RP = 3.08, suggesting a very red star, confirming our observations. We analyzed the ZTF DR4 and PS1 data in search of variability using Peranso 3 (CLEANest algorithm) and identified a 824 +\- 5 d period. J-K = 1.67 (2MASS), W3-W4 = 2.63 (WISE). The data was posted on the NGCA variable star catalog's extragalactic findings page.
|
2021-02-05 07:21:00
|
optical,star,variables
|
2021-02-05
|
07:21:00
| 894 |
[
-0.06208741292357445,
-0.004716036841273308,
-0.02129269950091839,
0.009674767032265663,
0.04669548571109772,
-0.07550733536481857,
-0.05517781153321266,
0.04494781792163849,
0.001263872836716473,
-0.04957934096455574,
-0.01035764068365097,
-0.05859506130218506,
0.013095483183860779,
-0.019670508801937103,
0.061989665031433105,
-0.08817514777183533,
0.03393404185771942,
-0.04352007061243057,
-0.025308724492788315,
0.028153806924819946,
0.0153771648183465,
0.09202588349580765,
-0.04891371726989746,
0.03530731052160263,
0.06372278183698654,
-0.031296998262405396,
-0.019017789512872696,
-0.007894634269177914,
0.012830987572669983,
-0.020171672105789185,
0.04061861336231232,
0.049853235483169556,
-0.04202672466635704,
0.0450560562312603,
-0.005965084303170443,
-0.023531995713710785,
-0.030263446271419525,
-0.07395099848508835,
-0.0056620631366968155,
-0.00647133169695735,
-0.027190348133444786,
-0.006882584188133478,
0.0003863101592287421,
-0.05268488824367523,
-0.006825665943324566,
-0.0035735175479203463,
-0.036187294870615005,
-0.00909016840159893,
-0.039134442806243896,
-0.024260953068733215,
-0.04752673581242561,
-0.001507521141320467,
-0.0037248956505209208,
0.010594762861728668,
0.07919362187385559,
0.03320767730474472,
-0.07252364605665207,
-0.11182522773742676,
0.08764119446277618,
-0.03242728114128113,
0.000469005637569353,
-0.005822186823934317,
-0.022966723889112473,
-0.07656033337116241,
-0.0005923174903728068,
-0.03620441257953644,
-0.04031944274902344,
-0.08685716241598129,
0.08705847710371017,
-0.015971973538398743,
-0.04140894487500191,
0.07997045665979385,
-0.035870131105184555,
-0.023287052288651466,
0.006537729408591986,
0.039445698261260986,
0.08599597215652466,
0.011050435714423656,
0.10748769342899323,
-0.07507219165563583,
0.039834145456552505,
-0.043520864099264145,
-0.05965350568294525,
0.027293620631098747,
-0.04095219075679779,
-0.05864650383591652,
0.006384545471519232,
0.039596930146217346,
0.025492088869214058,
0.005179277155548334,
0.09689169377088547,
-0.018054215237498283,
-0.10679151117801666,
-0.012801671400666237,
-0.02287297323346138,
0.007882406935095787,
0.037666432559490204,
-0.04372994229197502,
0.1208517923951149,
0.05649329349398613,
0.052615463733673096,
-0.000632231414783746,
-0.05027315765619278,
0.11080501228570938,
-0.016227521002292633,
0.06046415865421295,
0.06832990050315857,
0.07554981112480164,
-0.0729527547955513,
0.006873264908790588,
0.041935212910175323,
0.013852503150701523,
-0.007332749664783478,
-0.08867345005273819,
-0.03299396112561226,
0.07615292817354202,
-0.041640568524599075,
0.06195715442299843,
-0.11101432889699936,
-0.05268184840679169,
-0.007223591674119234,
-0.019354239106178284,
-0.027792001143097878,
0.01093341689556837,
0.046306174248456955,
0.053081214427948,
-0.06433101743459702,
1.0986037959670632e-32,
0.05748511478304863,
0.015185394324362278,
-0.013150819577276707,
0.0019625332206487656,
-0.03064870834350586,
0.12056265771389008,
-0.10889998078346252,
0.11616016179323196,
0.03094903565943241,
-0.019034137949347496,
-0.08486472815275192,
-0.0061698295176029205,
-0.012094281613826752,
-0.010421410202980042,
-0.020802447572350502,
0.030456267297267914,
0.06389728933572769,
0.021102096885442734,
-0.12086962163448334,
0.02195752039551735,
0.013685145415365696,
0.006259888410568237,
-0.013606385327875614,
-0.06578217446804047,
0.050075169652700424,
0.09420693665742874,
0.08324543386697769,
-0.05929354950785637,
-0.009731504134833813,
0.01622309908270836,
0.039903610944747925,
-0.03718966618180275,
-0.04439350590109825,
0.03629891946911812,
-0.00714477663859725,
-0.030806168913841248,
-0.03163975104689598,
0.0018818617099896073,
-0.05270453542470932,
-0.019470125436782837,
0.03830783814191818,
0.13946662843227386,
-0.02819884568452835,
0.03172417730093002,
0.0034647216089069843,
-0.018413903191685677,
-0.007678945083171129,
0.05105165019631386,
0.01789221167564392,
0.11030029505491257,
0.01861460879445076,
0.0014767852844670415,
-0.09620450437068939,
-0.00781055074185133,
0.01963174343109131,
0.02758665755391121,
0.03888724371790886,
0.027740387246012688,
-0.011693362146615982,
0.024154996499419212,
0.06132977083325386,
0.0453297458589077,
0.05340081453323364,
0.10027442872524261,
0.03889582306146622,
0.1526900827884674,
-0.06416330486536026,
0.005141157191246748,
0.022087475284934044,
0.04629320278763771,
-0.03724250569939613,
0.0508396215736866,
0.15730759501457214,
-0.047508444637060165,
0.04388158395886421,
-0.04657365009188652,
0.018545228987932205,
0.03480648249387741,
0.05312671884894371,
-0.019910695031285286,
-0.1093047484755516,
0.048085540533065796,
0.02709392085671425,
-0.04968150332570076,
-0.08318936079740524,
-0.06624658405780792,
-0.06963002681732178,
-0.02903689816594124,
0.036375828087329865,
-0.03693179786205292,
0.07792768627405167,
0.03429150953888893,
-0.029196225106716156,
-0.04082559794187546,
-0.12228887528181076,
-9.33330759609388e-33,
0.04836798459291458,
0.0009583530481904745,
0.06160058453679085,
-0.025197284296154976,
0.0035939726512879133,
0.017505859956145287,
0.03342881053686142,
0.007247545290738344,
-0.029652120545506477,
-0.03552040457725525,
0.08246361464262009,
0.0676407739520073,
-0.040770821273326874,
-0.0563637875020504,
0.061164963990449905,
-0.021138399839401245,
0.06572461873292923,
-0.01912185363471508,
-0.05497371777892113,
-0.009122283197939396,
0.05164729803800583,
0.03830711171030998,
0.0183158740401268,
-0.03484279662370682,
-0.01849118433892727,
-0.010546652600169182,
0.03806205093860626,
-0.03661232069134712,
-0.025336943566799164,
-0.016189446672797203,
-0.014313114807009697,
0.022560415789484978,
-0.05821807309985161,
-0.017953138798475266,
0.02432364597916603,
0.007436531595885754,
0.035495344549417496,
0.018007896840572357,
-0.04477846994996071,
-0.00993838906288147,
-0.026761669665575027,
0.11958806216716766,
-0.025260860100388527,
0.05983995646238327,
0.024528412148356438,
0.031195783987641335,
0.04596790298819542,
0.026876632124185562,
0.08701299130916595,
-0.010494964197278023,
-0.017852669581770897,
-0.12695185840129852,
-0.0033275368623435497,
0.035740822553634644,
0.05834345147013664,
0.03375331312417984,
-0.01386795099824667,
0.0039954171516001225,
0.00813762191683054,
0.017038626596331596,
0.1094028577208519,
-0.020663004368543625,
-0.01373139675706625,
-0.03710363432765007,
-0.016225187107920647,
-0.05381900072097778,
0.04403630271553993,
0.040294915437698364,
0.07762385159730911,
-0.016685210168361664,
0.06431159377098083,
-0.02100021205842495,
0.0004786216013599187,
-0.05176837742328644,
0.033157605677843094,
0.05329689010977745,
-0.03143231198191643,
-0.031114814803004265,
0.025725388899445534,
-0.041616927832365036,
0.030932916328310966,
0.026919648051261902,
-0.01315232738852501,
0.016694700345396996,
0.045709818601608276,
0.03573418781161308,
-0.032818954437971115,
0.010866577737033367,
0.013416417874395847,
-0.06513701379299164,
-0.07464203983545303,
0.026618584990501404,
-0.016938239336013794,
0.045759040862321854,
0.07772213220596313,
-6.315298151093884e-8,
0.00590632576495409,
0.008161566220223904,
-0.08035510033369064,
0.053805943578481674,
-0.0003608095576055348,
-0.04096920043230057,
-0.09044560045003891,
0.03464851528406143,
0.01894683949649334,
-0.018337953835725784,
0.031086530536413193,
0.0037607864942401648,
-0.024652551859617233,
-0.06150609999895096,
0.04317766800522804,
-0.011650335974991322,
-0.06920477002859116,
-0.09936081618070602,
-0.05152684822678566,
0.10746091604232788,
0.03135451674461365,
0.016221148893237114,
0.020180661231279373,
-0.041259441524744034,
0.024664608761668205,
-0.021498316898941994,
-0.04196922108530998,
0.05956794321537018,
0.015166421420872211,
-0.09599179774522781,
0.03103843331336975,
0.004538369830697775,
-0.018835166469216347,
-0.0011928705498576164,
-0.013327396474778652,
-0.01404567714780569,
-0.07614368200302124,
0.08692040294408798,
0.08537829667329788,
0.06982212513685226,
-0.0012446659384295344,
-0.08073145151138306,
-0.005661995615810156,
0.01751069165766239,
-0.08839274197816849,
0.027484944090247154,
-0.0023406106047332287,
-0.08407832682132721,
-0.05847783759236336,
-0.01861296407878399,
-0.036183733493089676,
-0.02357875369489193,
-0.009773739613592625,
-0.05091847851872444,
-0.02321096695959568,
-0.012713022530078888,
-0.0035902594681829214,
-0.02740470878779888,
-0.009527143090963364,
0.02401171810925007,
0.09957998991012573,
-0.08319346606731415,
-0.16879227757453918,
0.019376171752810478
] | 14,366 |
14,369 |
Faint Radio Emission from the X-ray Transient, XTE J1748-288
|
S. D. Hyman (Sweet Briar College), N. E. Kassim (NRL), S. Giacintucci (NRL), T. J. W. Lazio (JPL-Caltech), D. A. Frail (NRAO), J. E. Kooi (NRL), E. J. Polisensky (NRL), W. M. Peters (NRL)
|
Our recent radio observations with the VLA L-band (1-2 GHz) of a candidate pulsar in the Galactic center reveal nearby faint emission from the location of the black hole X-ray transient, XTE J1748-288 (Hjellming, R. M. et al. 1998, IAUC # 6934 , # 6937 ). On 2021 January 15 and 25, the measured peak flux densities at the 1.53 GHz central frequency are 0.109 +- 0.016 mJy/bm and 0.080 +- 0.012 mJy/bm (both 6.5 sigma), respectively. An image made from the combined observations yields a flux density of 0.096 +- 0.011 mJy/bm (9 sigma). Archival VLA L-band and GMRT Band 5 (1-1.5 GHz) observations from 2017 January and 2019 December are inconclusive, but a weighted average of the images yields a 3-sigma upper limit of 0.11 mJy/bm. The current detection could therefore be indicative of either an active state or a steady quiescent flux reached sometime after the ~600 mJy (1.5 GHz) outburst in 1998 that declined significantly over a period of months to, e.g., ~100 mJy in 1998 September (Hyman, S. D. et al. 2002, AJ, 123, 1497). Simultaneous 2021 January observations obtained by the commensal P-band system, VLITE (Polisensky, E. et al. 2016, ApJ, 832, 60), yield a 3-sigma upper limit of 7.5 mJy at 335 MHz, far below the ~300 mJy P-band measurement obtained in 1998 September. Further analysis of the 1998 activity revealed a resolved source with a 0.25'' E-W elongation (Rupen, M. P. et al. 1998 IAUC # 6938 ), later determined to be a highly polarized jet (Brocksopp, C. et al. 2007, MNRAS, 378, 3, 1111). The resolution of our images is 2'' x 1'', and the position of the peak pixel of the source is (J2000) RA 17 48 05.06, DEC -28 28 25.9. We note that while we report peak pixel flux densities here, the source does appear marginally resolved in the SE-NW direction, although this could be due to confusion with background noise. We encourage further monitoring, especially at high energy, to determine if XTE J1748-288 is currently in an active state.
|
2021-02-05 11:32:00
|
radio,x-ray,black hole,pulsar,transient
|
2021-02-05
|
11:32:00
| 1,965 |
[
-0.04068820923566818,
-0.00045055398368276656,
-0.05429670959711075,
0.0646161213517189,
-0.0024204840883612633,
-0.010177996009588242,
-0.013566426932811737,
0.028663434088230133,
0.025778623297810555,
-0.055286671966314316,
-0.02130025438964367,
-0.06962229311466217,
0.056452665477991104,
-0.04012119770050049,
0.04775743559002876,
-0.01936129666864872,
0.0166364423930645,
-0.15206807851791382,
0.04840969666838646,
0.003914676606655121,
-0.05714079365134239,
0.12748700380325317,
-0.07523298263549805,
0.06953130662441254,
0.07914362847805023,
-0.057413265109062195,
-0.043604180216789246,
-0.05868755653500557,
-0.012143172323703766,
-0.055051837116479874,
0.0025920493062585592,
0.07234196364879608,
-0.014082514680922031,
0.05124165117740631,
0.07831966131925583,
-0.0028617961797863245,
0.007533589377999306,
-0.009063584730029106,
0.0011358297197148204,
-0.0024936730042099953,
-0.02612796612083912,
-0.02047145366668701,
-0.014969052746891975,
0.032493121922016144,
-0.10037637501955032,
-0.004505498800426722,
0.03211170807480812,
0.027098819613456726,
-0.06440199166536331,
0.026381840929389,
0.11491944640874863,
0.01056476216763258,
0.026245586574077606,
0.050779279321432114,
0.07128220051527023,
0.0183488130569458,
-0.07436982542276382,
-0.07772056013345718,
0.02633388713002205,
-0.01788385957479477,
-0.0015206688549369574,
0.009854673407971859,
-0.056660246104002,
-0.019994786009192467,
-0.029606420546770096,
-0.04335571080446243,
-0.0159488245844841,
-0.04979122430086136,
-0.03415100276470184,
0.008892781101167202,
0.008259435184299946,
0.030671408399939537,
-0.010147137567400932,
-0.0960143655538559,
0.07308216392993927,
0.047760043293237686,
0.1091933473944664,
-0.04017278924584389,
0.05206550285220146,
-0.04537114500999451,
0.026863953098654747,
0.04515134170651436,
-0.05894157290458679,
-0.009273677133023739,
-0.013128667138516903,
-0.011986062861979008,
-0.032461702823638916,
0.01655030995607376,
-0.03882971405982971,
-0.02191425859928131,
0.036192260682582855,
0.012981956824660301,
-0.0961170643568039,
-0.019886154681444168,
0.028258178383111954,
0.01768970862030983,
0.03908267989754677,
-0.03403118625283241,
0.10226626694202423,
0.009244181215763092,
-0.01833699829876423,
-0.03559769317507744,
0.025888169184327126,
0.060265108942985535,
0.005288259591907263,
0.011530988849699497,
0.06334235519170761,
0.08654183894395828,
-0.05812328681349754,
-0.04697196185588837,
0.007955815643072128,
0.003183989552780986,
-0.021667730063199997,
-0.08644777536392212,
0.020117968320846558,
0.05989309772849083,
0.05541281774640083,
0.06614935398101807,
-0.07452547550201416,
0.007895542308688164,
-0.0729140043258667,
0.05310177057981491,
-0.09464804828166962,
0.030461300164461136,
0.009571751579642296,
-0.039049096405506134,
-0.05242404341697693,
3.207066339859907e-33,
-0.005967781879007816,
0.04704173654317856,
-0.045196209102869034,
-0.001816846546716988,
0.019814612343907356,
-0.008611872792243958,
-0.00644069816917181,
0.019029861316084862,
0.0032014965545386076,
0.02431044541299343,
-0.0628919005393982,
0.029286779463291168,
-0.042485132813453674,
-0.03981171175837517,
-0.014670755714178085,
-0.036658499389886856,
0.0203324593603611,
0.03155920282006264,
-0.09337304532527924,
0.0359644889831543,
-0.0135042704641819,
0.009248923510313034,
-0.09606538712978363,
-0.027620485052466393,
0.006250251550227404,
0.09672524034976959,
0.06750667095184326,
-0.008510597050189972,
-0.037272728979587555,
0.02378980815410614,
-0.054743386805057526,
0.03799279034137726,
0.023000141605734825,
-0.04745318740606308,
-0.03221799060702324,
-0.022934040054678917,
0.011670198291540146,
0.06372114270925522,
-0.030423227697610855,
0.0272526778280735,
0.049701180309057236,
0.04370690509676933,
-0.09345781803131104,
0.018705109134316444,
0.02982512302696705,
-0.018674543127417564,
0.019976254552602768,
-0.048095326870679855,
0.07918024063110352,
0.05228373035788536,
-0.001177234691567719,
-0.027990957722067833,
-0.0781480073928833,
0.02217850647866726,
0.0785248726606369,
0.0723547637462616,
0.036738913506269455,
0.012111902236938477,
0.01454036496579647,
0.04733165353536606,
0.07264945656061172,
0.03575432300567627,
-0.009621551260352135,
-0.0017567877657711506,
0.04531954601407051,
-0.05097430199384689,
0.0637488141655922,
-0.01210937462747097,
-0.04258902370929718,
0.043563008308410645,
-0.03647182136774063,
0.038506653159856796,
0.056866783648729324,
-0.07360779494047165,
0.04108209162950516,
-0.02423097938299179,
0.035300541669130325,
0.1142752394080162,
0.09466493129730225,
0.031206529587507248,
0.026552634313702583,
-0.09442969411611557,
0.04449838027358055,
-0.08202331513166428,
-0.0968339815735817,
0.01621323451399803,
-0.04035397991538048,
0.018198715522885323,
0.028121355921030045,
-0.034516580402851105,
-0.004522067029029131,
0.00895213708281517,
0.026540599763393402,
-0.04333272948861122,
-0.1334029734134674,
-4.9068473341962585e-33,
0.04645351693034172,
0.0006397665129043162,
0.062484171241521835,
0.05448117107152939,
-0.055210012942552567,
0.09434585273265839,
0.01671530306339264,
0.05927601456642151,
-0.05492211505770683,
0.006730716209858656,
0.00301537336781621,
0.10122554749250412,
-0.10725992172956467,
-0.020850926637649536,
0.04442247375845909,
-0.018876539543271065,
0.09370779246091843,
0.04084951803088188,
-0.06606724113225937,
-0.0051598637364804745,
0.016474608331918716,
0.010230248793959618,
0.03738405928015709,
-0.05517225340008736,
-0.06169414520263672,
-0.028211573138833046,
-0.0036270981654524803,
0.01209972333163023,
-0.020542189478874207,
0.023126963526010513,
-0.06408773362636566,
-0.03894811496138573,
0.049981456249952316,
-0.036191634833812714,
0.025639314204454422,
-0.05111878737807274,
0.023572182282805443,
0.04573556035757065,
-0.09813052415847778,
-0.006396222859621048,
0.008941041305661201,
0.14536979794502258,
-0.01633409410715103,
0.007246825844049454,
0.01950559951364994,
0.03733440861105919,
0.01995733380317688,
0.005525463260710239,
0.06653138250112534,
-0.031567055732011795,
0.012123391032218933,
-0.07952811568975449,
0.04786287248134613,
0.05032948777079582,
-0.08285931497812271,
0.0767742395401001,
0.029583020135760307,
-0.0280922818928957,
0.046508900821208954,
-0.003354162909090519,
0.00259240809828043,
-0.01315700076520443,
-0.06672987341880798,
-0.09057436883449554,
0.028933154419064522,
-0.11530165374279022,
-0.03616844117641449,
0.05279003828763962,
0.007035569753497839,
0.03743941709399223,
-0.0640534982085228,
-0.08954121917486191,
-0.07051058113574982,
-0.021378152072429657,
-0.012328609824180603,
0.05731845274567604,
0.006123058032244444,
-0.10103987902402878,
0.04430801421403885,
-0.01520654745399952,
-0.00391917210072279,
0.046283215284347534,
0.0016953680897131562,
-0.04221147298812866,
0.10297901183366776,
0.02645045705139637,
-0.024496864527463913,
-0.09235662966966629,
0.014914379455149174,
-0.03245524317026138,
-0.055291078984737396,
0.017059408128261566,
0.01132108923047781,
-0.01099490374326706,
0.031937405467033386,
-6.998745050168509e-8,
-0.012188410386443138,
0.06370421499013901,
-0.06686453521251678,
0.03713575005531311,
0.049264803528785706,
-0.03863721713423729,
-0.04927124083042145,
-0.07271832972764969,
0.1101858839392662,
0.09125397354364395,
-0.05306817591190338,
-0.04344504699110985,
0.038611359894275665,
-0.041118402034044266,
-0.006686100270599127,
0.0713411197066307,
0.002657907549291849,
-0.10168425738811493,
0.04587913677096367,
0.033676642924547195,
0.02272902987897396,
0.0585409514605999,
0.08038414269685745,
-0.041698772460222244,
0.035944774746894836,
0.030527252703905106,
0.038366638123989105,
0.0764903798699379,
0.01241491548717022,
0.04016195610165596,
-0.07218128442764282,
0.03537622466683388,
-0.03602927550673485,
-0.003962864633649588,
-0.02577904425561428,
0.045632071793079376,
0.006679777055978775,
0.005815777461975813,
0.048184946179389954,
0.10687913745641708,
0.00709153525531292,
-0.06168261915445328,
0.07215562462806702,
-0.0004467990074772388,
-0.11632480472326279,
0.015020336955785751,
-0.005995461717247963,
-0.08019508421421051,
-0.015787288546562195,
-0.06746413558721542,
-0.0038891122676432133,
-0.05971469730138779,
-0.025295335799455643,
-0.11378587037324905,
-0.06945440173149109,
0.009053608402609825,
0.024022284895181656,
-0.05584363266825676,
0.022559307515621185,
-0.039758000522851944,
0.05987543985247612,
-0.004474510904401541,
-0.11928264051675797,
0.008449980989098549
] | 14,367 |
14,370 |
Spectroscopic Classification of the Transients PNV J00425220+4116246 = AT 2021bfs and PNV J00434645+4133408 = AT 2021boa as classical novae in M31
|
Kenta Taguchi, Keisuke Isogai, Naoto Kojiguchi, Yusuke Tampo (Kyoto University), Claudio Balcon (ISSP)
|
We report on spectra of the transients PNV J00425220+4116246 (= AT 2021bfs = ZTF21aagkzmc) and PNV J00434645+4133408 (= AT 2021boa = ZTF21aagkzve). We obtained the spectra from 2021-02-04.40 UT to 2021-02-04.44 UT by using a fiber-fed integral field spectrograph (KOOLS-IFU; Matsubayashi et al. 2019) mounted on the 3.8-m telescope Seimei (Kurita et al. 2020) at Okayama Observatory of Kyoto University.
As reported to CBAT, PNV J00425220+4116246 was discovered by the Italian Supernovae Search Project (ISSP) at 17.6 ± 0.5 mag (unfiltered) on 2021-01-26.7209 UT. According to TNS, it was not detected on 2021-01-24.7889 by ISSP (limiting mag = 19) and by orange-ATLAS on 2021-01-25.2360 (limiting mag = 13.81, which is too small to be regarded as the last non-detection). It has brightened and was detected by ZTF at g = 15.960 on 2021-02-03.136 UT, g = 16.07 on 2021-02-05.14 UT, and r = 16.04 on 2021-02-05.16 UT. This object is located nearby (1 arcmin distant from) the center of M31. Our spectrum on 2021-02-04.4 UT shows broad Balmer emission lines and also Fe II emission lines around 5000 Å. So, we conclude this object is a Fe II-type nova in M31.
PNV J00434645+4133408 was discovered by XOSS at 16.8 mag (unfiltered) on 2021-02-03.5801, as reported to CBAT. It was also detected by ZTF at g = 17.274 ± 0.039 on 2021-02-03.136. It was not detected by XOSS on 2021-02-01.5752 (limiting mag = 18.5). Then, ZTF reported that this object was at g = 17.26 on 2021-02-05.14 UT and r = 17.09 on 2021-02-05.16 UT. This object is located about 20 arcmins from the center of M31. Our spectrum on 2021-02-04.4 UT shows broad Balmer emission lines. Moreover, features of Fe II emission lines around 5000 Å are similar to those of the previous one. So, we conclude this object is also a Fe II-type nova in M31.
|
2021-02-05 12:39:00
|
optical,cataclysmic variable,nova,supernovae,transient,variables
|
2021-02-05
|
12:39:00
| 1,809 |
[
-0.14333774149417877,
-0.03293409198522568,
0.0028953824657946825,
0.04461381956934929,
0.02548062801361084,
-0.01138228364288807,
-0.04877425730228424,
0.0560736283659935,
-0.015671905130147934,
-0.061848368495702744,
0.03444015979766846,
0.03191996365785599,
-0.04563964903354645,
0.031092654913663864,
-0.008182428777217865,
-0.0372464694082737,
0.04009595885872841,
-0.06293513625860214,
0.021833386272192,
0.03145582973957062,
0.010581621900200844,
0.06641139090061188,
-0.004703824874013662,
0.019236797466874123,
0.03882773593068123,
0.012295247986912727,
-0.03162260353565216,
0.011241044849157333,
0.03677944839000702,
0.03633279725909233,
0.058251943439245224,
0.07093851268291473,
-0.03990338370203972,
0.028663471341133118,
0.0759497731924057,
-0.010379824787378311,
-0.02280421182513237,
-0.01327583659440279,
0.0762687399983406,
-0.009404998272657394,
0.03650205582380295,
-0.08131173253059387,
0.007810695096850395,
0.03528350964188576,
0.031505782157182693,
-0.0016788503853604198,
-0.03444414958357811,
-0.08540863543748856,
-0.08482763171195984,
0.01249097939580679,
0.039858728647232056,
-0.011131813749670982,
0.1076362207531929,
0.03430885821580887,
0.0671151801943779,
0.006281228270381689,
-0.03279372677206993,
-0.06307336688041687,
0.064417265355587,
0.034854620695114136,
0.0511208139359951,
-0.051474679261446,
-0.016248544678092003,
-0.06851497292518616,
0.04460247978568077,
0.05333183333277702,
-0.006360940169543028,
-0.06468863785266876,
0.09558174759149551,
-0.08877895027399063,
-0.02483048476278782,
0.06332135945558548,
-0.01198807917535305,
-0.041771478950977325,
-0.022744160145521164,
0.0918697938323021,
0.07966483384370804,
0.006680233404040337,
0.01412284281104803,
-0.0977795273065567,
0.08187155425548553,
-0.09605912864208221,
0.006175542250275612,
-0.03189493343234062,
-0.0018609680701047182,
0.041091855615377426,
-0.057738617062568665,
0.06259053200483322,
0.003375788452103734,
0.0034736625384539366,
0.038154486566782,
-0.021706359460949898,
-0.05638842657208443,
0.02107147127389908,
-0.009206069633364677,
0.08476702868938446,
0.00532196369022131,
0.00766698457300663,
0.05616099387407303,
0.03741907700896263,
0.037934668362140656,
-0.011388054117560387,
-0.03409061208367348,
0.044062137603759766,
-0.06412147730588913,
0.05889621749520302,
0.055532198399305344,
0.04862714931368828,
0.010294217616319656,
0.027899878099560738,
0.009119732305407524,
-0.017095442861318588,
-0.04860372468829155,
-0.11285313963890076,
0.019464004784822464,
0.05261168256402016,
-0.01948549412190914,
0.11385007947683334,
-0.06914195418357849,
-0.04979253187775612,
-0.06223597377538681,
0.03743753954768181,
0.018146978691220284,
0.037900812923908234,
-0.04503989219665527,
0.08781956136226654,
-0.11008681356906891,
1.0424038518646311e-32,
0.05038239061832428,
0.057341475039720535,
-0.02616722509264946,
-0.017243310809135437,
-0.028631219640374184,
0.004612053278833628,
-0.0521448589861393,
0.002633302705362439,
-0.0331343375146389,
-0.056770626455545425,
-0.08407806605100632,
-0.018209578469395638,
0.035118285566568375,
-0.08630625903606415,
-0.05911710113286972,
-0.06068473309278488,
0.029323309659957886,
-0.03863251581788063,
-0.051922690123319626,
0.03855404630303383,
0.05509702116250992,
-0.004066510125994682,
0.027660353109240532,
0.009649766609072685,
0.01664123125374317,
0.06594431400299072,
0.025300364941358566,
0.012902233749628067,
0.005238723941147327,
0.01475003082305193,
-0.00898648239672184,
-0.02629760652780533,
-0.031732697039842606,
-0.02857862040400505,
0.020483221858739853,
-0.06918001919984818,
-0.08365383744239807,
-0.017116593196988106,
-0.08448278903961182,
-0.04557841643691063,
0.021323148161172867,
0.025486571714282036,
-0.07129140943288803,
0.025964614003896713,
0.038786880671978,
-0.07839670032262802,
-0.018027879297733307,
0.02951124683022499,
0.05748814716935158,
0.02354617416858673,
-0.01921677216887474,
0.011520416475832462,
-0.1050676554441452,
-0.014920346438884735,
0.024305714294314384,
0.022280706092715263,
0.10362004488706589,
0.023186231032013893,
0.033976517617702484,
-0.0226531233638525,
0.10079371184110641,
0.015678662806749344,
-0.011551395989954472,
-0.028489386662840843,
0.007914806716144085,
0.10801490396261215,
0.006728858686983585,
0.05220974236726761,
-0.011969288811087608,
0.039169538766145706,
-0.00880924891680479,
0.07149658352136612,
0.0703025534749031,
-0.060360558331012726,
0.07324302196502686,
-0.08249755203723907,
-0.061351750046014786,
0.06761076301336288,
0.0019794099498540163,
0.03543253242969513,
-0.06888539344072342,
-0.031489189714193344,
0.10786709934473038,
0.038655444979667664,
-0.012591492384672165,
-0.0015032343799248338,
-0.05873647704720497,
0.005130958277732134,
0.028746364638209343,
-0.02151227556169033,
0.07263745367527008,
0.002202466828748584,
0.011647835373878479,
-0.05691087245941162,
-0.1175837516784668,
-8.290083543045963e-33,
0.028721962124109268,
0.09402890503406525,
-0.02921111322939396,
-0.0015396630624309182,
-0.08239687979221344,
-0.029858354479074478,
-0.01775948517024517,
0.0653030127286911,
-0.06635087728500366,
-0.05542615428566933,
0.06511852890253067,
-0.0023269555531442165,
-0.017162350937724113,
-0.1089092493057251,
0.01071460172533989,
0.021785439923405647,
-0.044786252081394196,
0.00857557076960802,
0.03268824517726898,
0.004325081128627062,
0.07436186820268631,
-0.0016990886069834232,
-0.029483390972018242,
0.04754713177680969,
-0.0004129351582378149,
0.012767205014824867,
0.1126847118139267,
-0.013350017368793488,
-0.04507045820355415,
0.02038811333477497,
-0.07954853028059006,
0.03475166857242584,
-0.05921974405646324,
-0.010366874746978283,
-0.009002958424389362,
0.0008880798704922199,
0.013989920727908611,
-0.01840117573738098,
-0.05499600991606712,
-0.001743954955600202,
-0.07997109740972519,
0.13120633363723755,
-0.042005505412817,
0.040789540857076645,
-0.06832510232925415,
0.051315825432538986,
0.0076200226321816444,
0.05023029446601868,
0.03675933554768562,
-0.04007435590028763,
0.04351351037621498,
0.044031042605638504,
-0.03438638150691986,
0.08263176679611206,
0.025731844827532768,
0.05043511092662811,
0.02932467684149742,
0.0903855413198471,
-0.002463939134031534,
0.007184164132922888,
0.07432112097740173,
-0.08378049731254578,
0.013995962217450142,
0.018254315480589867,
0.07320692390203476,
0.013981220312416553,
0.018522435799241066,
0.04582870379090309,
0.008201836608350277,
-0.027804622426629066,
0.06896094977855682,
-0.03221438080072403,
-0.05690775811672211,
0.0478365495800972,
0.0695275068283081,
-0.014947705902159214,
-0.02977795898914337,
-0.032302580773830414,
0.026388829573988914,
-0.007016206160187721,
0.004887249320745468,
-0.00645289896056056,
-0.038034312427043915,
-0.04371129721403122,
0.11023103445768356,
-0.058820709586143494,
-0.008492671884596348,
-0.026943063363432884,
-0.030190926045179367,
-0.09055417776107788,
-0.014611348509788513,
0.03124525025486946,
-0.050925325602293015,
0.010290635749697685,
0.06599809229373932,
-5.898185051478322e-8,
0.03655465319752693,
0.02834850363433361,
-0.08817782253026962,
-0.04557424783706665,
0.0639096349477768,
-0.055849265307188034,
-0.043200019747018814,
0.06001242250204086,
0.026397619396448135,
-0.009346277453005314,
0.04784549027681351,
-0.058089952915906906,
-0.0020623987074941397,
-0.029119964689016342,
0.05998200550675392,
-0.05531259998679161,
-0.05221389979124069,
-0.01134747639298439,
-0.07459655404090881,
0.06700868904590607,
0.053316835314035416,
0.034465886652469635,
0.010445872321724892,
-0.06467989087104797,
0.02576957456767559,
-0.02797260321676731,
0.016169285401701927,
0.09436444938182831,
0.017437651753425598,
-0.09954822808504105,
-0.02736477181315422,
-0.03757144510746002,
0.008303211070597172,
-0.08681757748126984,
-0.0038754872512072325,
0.1355242282152176,
-0.07110866904258728,
-0.001458947081118822,
0.06666777282953262,
0.08915240317583084,
-0.056612610816955566,
-0.1403275579214096,
0.014685237780213356,
0.05515023693442345,
-0.024189507588744164,
0.027776222676038742,
-0.033419907093048096,
-0.01887350343167782,
-0.017833644524216652,
0.0013461048947647214,
-0.02679090015590191,
-0.034832216799259186,
0.008349562995135784,
-0.06592697650194168,
-0.10741715133190155,
0.02019890770316124,
-0.007037352304905653,
-0.012109333649277687,
-0.01857401244342327,
-0.02181815914809704,
0.0990694984793663,
-0.08478008210659027,
-0.08702437579631805,
-0.03037136048078537
] | 14,368 |
14,371 |
Spectroscopic Classifications of Optical Transients with the SOAR telescope
|
G. Dimitriadis and M. R. Siebert (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the Goodman spectrograph on the Southern Astrophysical Research (SOAR) telescope. Targets were supplied by YSE and ZTF (as reported by ALeRCE). All observations were made on 2021 February 5 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure an Si II 6355 velocity of -11,000 km/s. (2) We measure an Si II 6355 velocity of -10,400 km/s.
|
2021-02-06 03:28:00
|
optical,supernovae,transient
|
2021-02-06
|
03:28:00
| 636 |
[
-0.029336782172322273,
-0.061573974788188934,
-0.011995857581496239,
0.011975524015724659,
0.037852976471185684,
0.012949579395353794,
-0.048699285835027695,
0.03686036169528961,
0.023951811715960503,
-0.04374745860695839,
-0.018886329606175423,
-0.05127345398068428,
-0.04109764099121094,
-0.08110027015209198,
0.03158707171678543,
-0.07416055351495743,
0.056142568588256836,
-0.061035457998514175,
0.005243492312729359,
0.0069056241773068905,
-0.006274473387748003,
0.04678085818886757,
-0.0617830753326416,
0.06817568838596344,
0.06655949354171753,
-0.03727434575557709,
-0.04761863872408867,
-0.08455320447683334,
-0.02384072169661522,
-0.010604649782180786,
0.023319367319345474,
0.060379594564437866,
-0.05369294062256813,
0.07000715285539627,
0.01367995049804449,
-0.06192760169506073,
0.11166700720787048,
-0.057399701327085495,
0.01755369082093239,
-0.005257118493318558,
0.016073958948254585,
-0.05504583567380905,
-0.0074425991624593735,
-0.0056051029823720455,
0.028778420761227608,
0.03942865505814552,
0.017863968387246132,
0.02752147614955902,
-0.10842780023813248,
0.02389664761722088,
-0.021193763241171837,
0.02937709540128708,
0.016128528863191605,
0.026284784078598022,
0.03341221809387207,
0.06603090465068817,
0.01210979837924242,
-0.10996527969837189,
0.11149685084819794,
-0.012084541842341423,
0.03290672227740288,
-0.0358906127512455,
-0.05487389862537384,
-0.0512140654027462,
-0.0192569550126791,
0.0264588575810194,
-0.011641300283372402,
-0.0748600959777832,
0.07744202017784119,
0.006266338750720024,
-0.0438198484480381,
0.043794579803943634,
0.009751396253705025,
0.020014559850096703,
-0.011139311827719212,
-0.04246767237782478,
0.12585505843162537,
0.079826720058918,
0.07029413431882858,
-0.11273115128278732,
0.06562440097332001,
-0.0309128537774086,
-0.08509774506092072,
-0.014469300396740437,
0.0008519302355125546,
-0.0000719890886102803,
-0.08890397846698761,
0.15760605037212372,
-0.014020049944519997,
-0.029666757211089134,
-0.009237529709935188,
-0.07772927731275558,
-0.03445548564195633,
-0.08815722167491913,
0.007312792353332043,
0.004089765716344118,
-0.003422012785449624,
-0.09195984899997711,
0.11105240136384964,
0.015170159749686718,
0.04268393665552139,
-0.030432548373937607,
-0.03452788665890694,
0.09630268067121506,
-0.03788100183010101,
0.0763915553689003,
0.0949615091085434,
0.0277157761156559,
0.0055177598260343075,
0.030904890969395638,
0.07128802686929703,
-0.0005816126940771937,
-0.03559592738747597,
-0.12120338529348373,
-0.023278193548321724,
0.009828958660364151,
-0.05582047998905182,
0.10649320483207703,
-0.0931360274553299,
-0.06023842468857765,
-0.016426514834165573,
0.052663274109363556,
-0.026369348168373108,
0.026026776060461998,
0.016061678528785706,
0.0016365875490009785,
-0.06218170002102852,
3.3526300093741386e-33,
0.0782429575920105,
0.030741645023226738,
-0.0682101771235466,
0.00185654335655272,
-0.026873650029301643,
0.014613661915063858,
-0.020131731405854225,
0.06405794620513916,
0.01867746375501156,
-0.04055138677358627,
-0.04507238045334816,
-0.02827187441289425,
-0.01090315356850624,
-0.021345045417547226,
-0.026562828570604324,
0.01353667676448822,
0.0911044105887413,
-0.004285246133804321,
-0.0921281948685646,
-0.0016832193359732628,
-0.03411893546581268,
0.031163634732365608,
-0.0359509214758873,
-0.001208985922858119,
0.08129403740167618,
0.05093040689826012,
0.007264712825417519,
-0.0022801742888987064,
-0.008409326896071434,
0.033282049000263214,
0.016814352944493294,
0.009377089329063892,
-0.009190219454467297,
-0.013265812769532204,
0.02756928838789463,
-0.04464271292090416,
-0.007820089347660542,
0.025656506419181824,
0.0347195528447628,
-0.037455420941114426,
0.011384367011487484,
0.07128904014825821,
-0.0991133376955986,
0.054116081446409225,
0.0009451357764191926,
0.004264951217919588,
-0.03966454789042473,
0.05777648463845253,
0.08188914507627487,
0.0034537313040345907,
-0.012187873013317585,
-0.026597920805215836,
-0.08111830800771713,
0.005629688035696745,
-0.01811590977013111,
0.01518678106367588,
-0.009850071743130684,
0.03269987180829048,
0.0074009643867611885,
0.05585375055670738,
0.07048650085926056,
-0.020121080800890923,
0.05098285898566246,
-0.00009531496471026912,
-0.0010539466748014092,
0.04993955045938492,
-0.0570448637008667,
0.08831454813480377,
-0.019831247627735138,
0.024429408833384514,
-0.043969716876745224,
0.11682673543691635,
0.06784136593341827,
-0.05901382863521576,
0.05354597419500351,
-0.03420896455645561,
0.03213222697377205,
0.04418341442942619,
-0.02082544006407261,
0.0551021583378315,
-0.06897877156734467,
-0.06613784283399582,
-0.004725910257548094,
0.0016544575337320566,
-0.042807187885046005,
0.009362122043967247,
-0.028212113305926323,
0.023443670943379402,
-0.021404065191745758,
-0.08253629505634308,
0.042558103799819946,
0.004839347675442696,
0.016534650698304176,
-0.05130968615412712,
-0.09622101485729218,
-5.1210022011069245e-33,
0.050967950373888016,
0.03807111456990242,
-0.024553634226322174,
0.07733840495347977,
-0.014461143873631954,
0.040573615580797195,
0.03887462243437767,
0.1173771545290947,
-0.15913604199886322,
-0.0662325769662857,
-0.005247338674962521,
0.00882730819284916,
-0.0996803268790245,
-0.1220044270157814,
-0.021496303379535675,
-0.02392248809337616,
0.0010299558052793145,
0.002764929784461856,
-0.008108488284051418,
-0.020039435476064682,
0.04805055633187294,
-0.03335515409708023,
0.030673718079924583,
-0.07380138337612152,
-0.004773375578224659,
0.02293919213116169,
0.0545986145734787,
-0.007504361681640148,
-0.11772900074720383,
-0.018925229087471962,
0.01035576593130827,
-0.0004559564113151282,
-0.025257183238863945,
-0.06569017469882965,
0.006920101586729288,
0.04681486636400223,
0.007719123270362616,
-0.03607498109340668,
-0.10843093693256378,
-0.03805952146649361,
-0.007563313469290733,
0.10409388691186905,
0.023939775303006172,
-0.00202588620595634,
0.02667032741010189,
-0.01703636161983013,
0.013288021087646484,
0.06479773670434952,
0.0473933219909668,
-0.044855665415525436,
0.06364519894123077,
-0.05501953139901161,
0.00847612228244543,
0.030854977667331696,
0.027278335765004158,
0.0671832337975502,
0.013755938038229942,
0.05856911465525627,
-0.008578506298363209,
0.030083151534199715,
-0.00912703387439251,
0.03489144146442413,
0.0004623105050995946,
0.0241842158138752,
0.05101734399795532,
-0.10085904598236084,
0.019437769427895546,
0.020176082849502563,
0.058156587183475494,
-0.022501753643155098,
0.04297885298728943,
-0.032263219356536865,
-0.06673948466777802,
0.028279775753617287,
0.022278357297182083,
0.029176602140069008,
-0.006941285450011492,
-0.05856626108288765,
0.01641073450446129,
0.07633345574140549,
-0.03085244819521904,
-0.026251906529068947,
0.060089267790317535,
0.031929925084114075,
0.057099923491477966,
0.01438950840383768,
-0.012843544594943523,
-0.039329834282398224,
0.03725224733352661,
-0.0314348079264164,
-0.04240233823657036,
-0.00961522851139307,
-0.021835578605532646,
-0.03975693881511688,
0.031906675547361374,
-5.232834965340771e-8,
0.04022815451025963,
0.029191473498940468,
-0.06721124053001404,
0.029384931549429893,
-0.02630026452243328,
0.03183147683739662,
-0.03325200825929642,
0.02799072489142418,
-0.0013835272984579206,
-0.05129818618297577,
0.045844122767448425,
-0.050059668719768524,
0.0016535317990928888,
-0.030117562040686607,
0.028951209038496017,
-0.07817600667476654,
-0.014299382455646992,
-0.05125489458441734,
-0.028270117938518524,
0.061386775225400925,
0.06307888776063919,
0.07502064108848572,
0.050420429557561874,
-0.03922438994050026,
0.015010443516075611,
0.03008846566081047,
-0.048381682485342026,
0.096466064453125,
0.03707245737314224,
-0.017872579395771027,
0.037546783685684204,
-0.043549664318561554,
-0.010690361261367798,
-0.032712049782276154,
-0.014089581556618214,
-0.006554448511451483,
-0.10728825628757477,
0.07473233342170715,
0.13976919651031494,
0.05501977354288101,
-0.03956903889775276,
-0.006440510507673025,
0.007542404346168041,
0.06049913913011551,
-0.07946079224348068,
-0.011431748047471046,
-0.03210969641804695,
-0.06278020888566971,
-0.03641042113304138,
0.040324386209249496,
-0.05275659263134003,
0.0028626928105950356,
-0.04590018466114998,
-0.01587945967912674,
-0.10571242868900299,
-0.02293318323791027,
-0.011914893053472042,
-0.06087317317724228,
-0.04541892930865288,
-0.04640885815024376,
0.15565960109233856,
-0.042959537357091904,
-0.1173955649137497,
0.01947753317654133
] | 14,369 |
14,372 |
ZTF detects an optical brightening of XTE J1859+226
|
Eric C. Bellm (UW) on behalf of the Zwicky Transient Facility Collaboration
|
We report discovery of an optical brightening of the black hole LMXB XTE J1859+226 with the Zwicky Transient Facility (ZTF; Bellm et. al 2019, Graham et. al 2019). ZTF detected the object (internally designated ZTF21aagyzqr) at m_r ~18.9 on 2021-02-04.6 in five r-band images taken in twilight. No source was detected in five observations taken 24 hours earlier with limiting magnitudes of m_r ~ 19.5-19.8. We identified the outburst using a watchlist of known X-ray binaries hosted by the ANTARES alert broker (Matheson et. al 2020). Public data for this object can be retrieved at https://antares.noirlab.edu/loci/ANT2021dn4jk This optical brightening may presage a later X-ray nova (Russell et. al 2019), although some previous optical re-brightenings of this source have not led to increased X-ray emission (Atel #2845). No X-ray brightening is currently apparent in the Swift-BAT or MAXI one-day lightcurves. Based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grant No. AST-2034437 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, and IN2P3, France. Operations are conducted by COO, IPAC, and UW. We acknowledge further support from the NSF under grants AST- 1812779 and the Heising-Simons Foundation under grant 2018-0908.
|
2021-02-06 23:41:00
|
optical,x-ray,binary,black hole,nova,transient
|
2021-02-06
|
23:41:00
| 1,716 |
[
-0.053703684359788895,
-0.02509245090186596,
0.002851841738447547,
0.11968246847391129,
0.05375232920050621,
-0.051235053688287735,
-0.014715351164340973,
-0.008452209644019604,
-0.011989451944828033,
-0.031694378703832626,
-0.020464802160859108,
0.010977315716445446,
0.04267607629299164,
-0.011647148989140987,
-0.03395981714129448,
0.018407067283988,
0.01946663297712803,
-0.11110178381204605,
0.009159610606729984,
0.04319419339299202,
0.013221376575529575,
0.08473172783851624,
-0.007401594426482916,
0.017843764275312424,
0.024290531873703003,
-0.018203575164079666,
-0.05839109048247337,
-0.05112672969698906,
0.030331537127494812,
0.003035597736015916,
0.008799868635833263,
0.0865950658917427,
-0.07255474478006363,
0.026139331981539726,
0.04083443805575371,
0.008688108995556831,
0.06055857241153717,
-0.010642179287970066,
-0.012500436045229435,
-0.03538684546947479,
0.03328883275389671,
-0.04933015629649162,
-0.01994698867201805,
-0.05071515589952469,
-0.06799617409706116,
0.03437796235084534,
0.03723645955324173,
-0.05338551476597786,
-0.10430523753166199,
0.007723034359514713,
0.04557476192712784,
0.02058662474155426,
0.03917160630226135,
0.028674153611063957,
0.10654287785291672,
0.024064598605036736,
-0.055420953780412674,
-0.06386371701955795,
0.03928953409194946,
-0.015391756780445576,
0.026930976659059525,
-0.009898859076201916,
-0.003181973472237587,
-0.03489883616566658,
0.019270772114396095,
0.005051265005022287,
-0.03599311411380768,
-0.052115440368652344,
0.008749537169933319,
-0.030349671840667725,
0.026379091665148735,
0.06292299926280975,
-0.007386317010968924,
-0.04456280171871185,
-0.007067580707371235,
0.06666982918977737,
0.1328815072774887,
-0.028226347640156746,
0.05532820522785187,
-0.044133685529232025,
0.04623880237340927,
0.03856534883379936,
-0.0035863667726516724,
-0.004713770467787981,
0.02493092231452465,
0.015560426749289036,
-0.013627225533127785,
0.09558424353599548,
-0.038411471992731094,
0.08495442569255829,
0.04322998225688934,
-0.0025889722164720297,
-0.021725792437791824,
0.002694900846108794,
0.06421146541833878,
-0.06977127492427826,
0.02573639340698719,
-0.07005792111158371,
0.03471651300787926,
0.02402707003057003,
0.04624972492456436,
-0.02280840463936329,
-0.0028815579134970903,
0.06191305071115494,
-0.02909170836210251,
0.004854582715779543,
0.015603908337652683,
0.056417737156152725,
-0.03550680726766586,
0.04662848263978958,
0.05245546996593475,
-0.024400215595960617,
0.024819493293762207,
-0.12053356319665909,
-0.011493893340229988,
0.04333285242319107,
-0.05369555950164795,
0.07261261343955994,
-0.11647608876228333,
-0.009200604632496834,
-0.008473584428429604,
-0.02733568847179413,
-0.04059635475277901,
0.05016450956463814,
0.017623206600546837,
0.06281796097755432,
-0.08883398026227951,
6.747411776800826e-33,
0.049064479768276215,
0.08758394420146942,
-0.0795687735080719,
-0.03989844769239426,
0.049714770168066025,
0.0199708491563797,
0.043573588132858276,
0.13820703327655792,
-0.06675083935260773,
0.018551984801888466,
-0.029900308698415756,
0.0267319418489933,
0.025525778532028198,
-0.02944823168218136,
-0.06971891969442368,
-0.04754339158535004,
0.039923761039972305,
0.05027375742793083,
-0.1317676454782486,
0.05375581607222557,
-0.04955253377556801,
-0.035894252359867096,
-0.07542899250984192,
-0.03084469400346279,
-0.01652553863823414,
0.07576173543930054,
0.017071520909667015,
-0.01880793273448944,
-0.006444265134632587,
0.003963689785450697,
-0.03869323804974556,
0.0374637171626091,
-0.000006565764579136157,
0.06142568215727806,
-0.014544053003191948,
-0.02775624208152294,
-0.02401815354824066,
-0.04015249386429787,
-0.034039489924907684,
-0.06908097863197327,
0.06819727271795273,
0.045143287628889084,
-0.08346474915742874,
-0.0016435558209195733,
0.04304257407784462,
0.0009247894049622118,
-0.024634769186377525,
-0.039422813802957535,
0.030695827677845955,
-0.005736241582781076,
0.016231687739491463,
-0.0010184330167248845,
-0.09233606606721878,
-0.0009306701831519604,
-0.003803963540121913,
0.02155066654086113,
-0.03992835059762001,
-0.028283970430493355,
0.03969743102788925,
0.015144363977015018,
0.08018022775650024,
-0.04344389960169792,
0.00116011593490839,
0.021824568510055542,
-0.025336675345897675,
0.04496914893388748,
-0.007755611557513475,
-0.03408205136656761,
-0.08637204766273499,
0.06080837920308113,
-0.041819438338279724,
0.0017265097703784704,
0.08770889788866043,
-0.10353183001279831,
0.10074412077665329,
-0.009891368448734283,
0.004539454355835915,
0.09421158581972122,
0.08783309906721115,
0.018458213657140732,
-0.016047319397330284,
-0.033723536878824234,
0.10125084221363068,
-0.06489407271146774,
-0.10022126883268356,
0.030988143756985664,
-0.0289215836673975,
0.026950044557452202,
-0.039052579551935196,
0.007270145695656538,
0.04957914724946022,
-0.10434343665838242,
-0.04264238476753235,
-0.006548452191054821,
-0.1339772343635559,
-6.578111202923646e-33,
0.028532322496175766,
0.031663671135902405,
-0.019800445064902306,
-0.0230600293725729,
-0.01037538331001997,
0.01107477955520153,
-0.025896137580275536,
0.03569135069847107,
-0.08643784373998642,
-0.11819030344486237,
0.047161441296339035,
0.06786417961120605,
-0.03519986569881439,
-0.04624380171298981,
-0.0012029734207317233,
-0.04480286315083504,
0.04907211661338806,
-0.013616160489618778,
-0.042912501841783524,
0.04757324978709221,
0.03085405007004738,
-0.01338531356304884,
0.004147281404584646,
-0.07899750024080276,
-0.02170083113014698,
0.026031076908111572,
0.15645581483840942,
-0.012620468623936176,
-0.009056909941136837,
-0.034973978996276855,
-0.09307026118040085,
0.018069570884108543,
-0.027085307985544205,
-0.0350811667740345,
-0.003657788271084428,
0.02727188728749752,
0.04197053238749504,
-0.053359564393758774,
-0.12446458637714386,
-0.04742135480046272,
0.04028044268488884,
0.12893423438072205,
-0.056451838463544846,
0.1007368341088295,
0.007203133776783943,
0.03139055147767067,
-0.005353347398340702,
0.055473990738391876,
0.07678084075450897,
0.018716681748628616,
-0.007190950680524111,
-0.040564991533756256,
-0.004962102510035038,
0.09126560389995575,
-0.05822991207242012,
0.06814706325531006,
0.006177654955536127,
0.010180583223700523,
-0.036216504871845245,
0.054657649248838425,
-0.02219049260020256,
0.05159657448530197,
-0.017611991614103317,
-0.02968628518283367,
0.048672426491975784,
-0.08984653651714325,
0.023488279432058334,
0.06106841564178467,
0.023736653849482536,
0.01735016144812107,
0.07385722547769547,
-0.014527452178299427,
-0.05868874117732048,
-0.01775301620364189,
0.040220119059085846,
0.04636089503765106,
-0.0074492464773356915,
-0.09963494539260864,
-0.019418226554989815,
-0.010184979997575283,
-0.01063831988722086,
0.022778794169425964,
0.05703243613243103,
0.056996360421180725,
0.06511099636554718,
0.004638161975890398,
0.06299444288015366,
-0.03295893594622612,
-0.06296709179878235,
-0.07768353074789047,
-0.09070555120706558,
-0.01752590946853161,
-0.056044481694698334,
-0.009830838069319725,
0.053073056042194366,
-5.70424454338081e-8,
0.004510892555117607,
0.05666816234588623,
-0.06743385642766953,
-0.0037698019295930862,
0.08615999668836594,
-0.07189320027828217,
-0.0021825877483934164,
0.05990628898143768,
-0.010787547565996647,
0.02070634812116623,
0.021402811631560326,
-0.06616998463869095,
0.033846959471702576,
-0.0642126053571701,
0.010928081348538399,
-0.01278121117502451,
-0.02387075312435627,
-0.09032212197780609,
-0.048159658908843994,
0.03504965081810951,
0.013751069083809853,
0.018109053373336792,
0.1100015640258789,
-0.0763605609536171,
0.02096593752503395,
-0.028504805639386177,
0.008527176454663277,
0.05714268982410431,
0.05041517689824104,
-0.03872000053524971,
-0.10494211316108704,
0.004568736534565687,
0.02715419977903366,
0.0054010432213544846,
-0.02159162424504757,
0.0648786872625351,
-0.05382553115487099,
0.0027793641202151775,
0.08498164266347885,
0.040882959961891174,
0.011884643696248531,
-0.038721974939107895,
0.06550076603889465,
0.024970436468720436,
-0.06990978121757507,
0.01660306192934513,
-0.03949987143278122,
-0.10877823829650879,
0.02910025604069233,
-0.0027661265339702368,
0.012042219750583172,
0.022959701716899872,
-0.0018393048085272312,
-0.043002281337976456,
-0.031711556017398834,
-0.025106113404035568,
-0.026004526764154434,
-0.022100480273365974,
0.02160329930484295,
0.05569784343242645,
0.08741740882396698,
-0.12533384561538696,
-0.07696456462144852,
0.00020666491764131933
] | 14,370 |
14,373 |
Spectroscopic Classification of AT2021arl with the Lick Shane telescope
|
K. W. Davis (UCLA), G. Dimitriadis, R. J. Foley (UCSC)
|
We report the following classification of AT2021arl from spectroscopic observations with the Kast spectrograph on the Shane telescope. The target was supplied by ZTF (as reported by ALeRCE). All observations were made on 2021 Feb 06 UT. The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure an Si II 6355 velocity of -10,600 km/s.
|
2021-02-07 09:15:00
|
optical,supernovae
|
2021-02-07
|
09:15:00
| 527 |
[
-0.10048985481262207,
-0.07158543914556503,
-0.023386148735880852,
0.0266453567892313,
0.022184016183018684,
0.04332121089100838,
-0.056449323892593384,
-0.009978300891816616,
0.01515490934252739,
-0.024736188352108,
-0.01044878177344799,
-0.07932751625776291,
0.014382949098944664,
-0.04399604722857475,
-0.0047340840101242065,
-0.046777740120887756,
0.017426984384655952,
-0.10105394572019577,
0.00138883909676224,
0.00003924757402273826,
0.017263248562812805,
0.09723205864429474,
-0.010334242135286331,
0.055291663855314255,
0.06852716207504272,
-0.0600394606590271,
-0.059895675629377365,
-0.05159188434481621,
0.00100225699134171,
-0.012658846564590931,
0.1083613708615303,
0.059126246720552444,
-0.03644927591085434,
0.05472005903720856,
0.05530153959989548,
-0.04938919097185135,
-0.0016226146835833788,
-0.006254599895328283,
0.03852258622646332,
-0.032642073929309845,
0.034206923097372055,
-0.09934793412685394,
0.028489939868450165,
0.03843269124627113,
0.0051575214602053165,
0.0410427562892437,
-0.025385884568095207,
-0.05850740522146225,
-0.054653678089380264,
0.03969194367527962,
-0.04493151605129242,
0.018377166241407394,
0.04015733674168587,
0.004140577279031277,
0.05391053855419159,
0.024791257455945015,
-0.02401772327721119,
-0.09062919020652771,
0.08686895668506622,
-0.05798730254173279,
0.05261969938874245,
-0.07988318055868149,
-0.05074147880077362,
-0.039878226816654205,
-0.05011700093746185,
0.018108706921339035,
-0.007713294588029385,
-0.11129999160766602,
0.1169712245464325,
-0.04037847742438316,
-0.03461248427629471,
0.03540068119764328,
0.05337849259376526,
0.050230298191308975,
-0.00016267957107629627,
-0.04662654176354408,
0.11350475996732712,
0.04153650254011154,
0.03193151205778122,
-0.1063152328133583,
0.05790438875555992,
-0.07397229224443436,
-0.04258181154727936,
-0.012841911055147648,
0.02283220924437046,
-0.005469203926622868,
0.0010434853611513972,
0.08999795466661453,
-0.029037993401288986,
-0.0033921198919415474,
-0.031149892136454582,
-0.030573982745409012,
-0.04432787001132965,
-0.08284378796815872,
0.006632630713284016,
0.0032175942324101925,
0.015634404495358467,
-0.028867043554782867,
0.10787118971347809,
0.06491945683956146,
0.09021297097206116,
0.0005812874878756702,
-0.045909807085990906,
0.07508597522974014,
-0.05074849724769592,
0.014072390273213387,
0.01330050639808178,
-0.021443026140332222,
0.014999927021563053,
-0.01480421144515276,
0.12392634153366089,
0.00977636780589819,
-0.014209527522325516,
-0.0565810427069664,
-0.007016786839812994,
0.019939545542001724,
-0.07157176733016968,
0.09058502316474915,
-0.0009616565657779574,
-0.013076934963464737,
-0.04534916579723358,
0.0018020381685346365,
-0.004596719518303871,
0.07892614603042603,
0.03775595873594284,
0.01858251541852951,
-0.09553737193346024,
3.927272626825522e-33,
0.04772931709885597,
0.00652743224054575,
-0.06619233638048172,
0.008018159307539463,
-0.0033916602842509747,
0.004853739403188229,
-0.05998510867357254,
0.05122457817196846,
-0.02123981900513172,
-0.015070764347910881,
-0.0377640537917614,
-0.039149731397628784,
-0.01861695758998394,
-0.046131450682878494,
-0.06536856293678284,
0.02463376708328724,
0.004816630855202675,
0.0004558170330710709,
-0.12238280475139618,
-0.014109664596617222,
-0.038684386759996414,
0.021879566833376884,
-0.030001673847436905,
0.00041479396168142557,
0.06467579305171967,
0.06060706451535225,
0.012431597337126732,
-0.03604772686958313,
-0.02854328788816929,
0.055212199687957764,
0.0003430238284636289,
-0.07387566566467285,
-0.05000126734375954,
0.03557054325938225,
-0.03972010314464569,
-0.05081784725189209,
-0.08126812428236008,
0.0235810074955225,
0.05266652628779411,
-0.019876908510923386,
0.042549651116132736,
0.04074111580848694,
-0.07450417429208755,
0.017884530127048492,
0.0027967060450464487,
-0.005541946738958359,
-0.019281942397356033,
0.06940392404794693,
0.041799258440732956,
0.06659068912267685,
0.011696421541273594,
-0.08704403042793274,
-0.045296985656023026,
0.006515322718769312,
-0.03535356745123863,
-0.01524386927485466,
0.0059350524097681046,
0.0022854094859212637,
0.008650907315313816,
0.07809256762266159,
0.08003021031618118,
0.006267345976084471,
0.01753559149801731,
0.04521694406867027,
-0.0005722188507206738,
0.03693832829594612,
-0.009003707207739353,
0.027049804106354713,
0.00027680108905769885,
0.05905124917626381,
-0.040458306670188904,
0.07943572849035263,
0.09547504037618637,
-0.03686629980802536,
0.029626090079545975,
-0.04776964709162712,
0.01823035255074501,
0.026900947093963623,
-0.005262964870780706,
0.07715567946434021,
-0.07316887378692627,
0.02581406943500042,
0.013927102088928223,
-0.03300675377249718,
-0.12241657823324203,
-0.025907307863235474,
-0.04531291127204895,
-0.0024224738590419292,
0.05589272826910019,
-0.02703273482620716,
0.013068870641291142,
-0.07650356739759445,
-0.05109567940235138,
-0.04071114957332611,
-0.0858331173658371,
-3.6065389932036605e-33,
0.023440716788172722,
0.07587561011314392,
0.0067025236785411835,
0.07740180194377899,
-0.01483759842813015,
0.03849371522665024,
0.10903723537921906,
0.09938107430934906,
-0.10431897640228271,
-0.0344330370426178,
0.12347577512264252,
0.050095900893211365,
-0.06229611113667488,
-0.09144017100334167,
0.026315312832593918,
-0.018838951364159584,
0.0006204249802976847,
-0.019650956615805626,
-0.005413721781224012,
0.0051590800285339355,
0.01966354250907898,
-0.008143321610987186,
0.019032439216971397,
0.0046532172709703445,
-0.026568489149212837,
0.037344563752412796,
0.07084891945123672,
-0.040127597749233246,
-0.0466400571167469,
0.03245135396718979,
-0.02414814569056034,
0.005043237004429102,
0.0019901960622519255,
-0.051815856248140335,
-0.06414950639009476,
0.015913886949419975,
0.0007088385755196214,
0.01734011061489582,
-0.14370043575763702,
-0.028180118650197983,
-0.004857094958424568,
0.10815264284610748,
-0.009709152393043041,
-0.005759464576840401,
-0.03310501575469971,
-0.005722032859921455,
-0.01391956489533186,
0.07079806923866272,
0.06149612367153168,
-0.11658673733472824,
0.06299004703760147,
0.010514156892895699,
0.0824427381157875,
0.014244764111936092,
-0.0027757608331739902,
0.07644682377576828,
-0.0015694012399762869,
0.04579078406095505,
-0.007144829723984003,
0.00022999323846306652,
0.012195831164717674,
-0.02863641269505024,
0.032581012696027756,
0.03138888254761696,
0.05291109159588814,
-0.04013602435588837,
-0.007372530642896891,
0.04532122611999512,
0.012069059535861015,
0.012921593151986599,
0.009733514860272408,
-0.037926044315099716,
-0.0320642851293087,
0.022301651537418365,
0.06524331122636795,
0.028207598254084587,
0.014901912771165371,
-0.02160140685737133,
0.04573456197977066,
0.00727420300245285,
-0.0005383742973208427,
0.005069177132099867,
0.01718342863023281,
0.05991605669260025,
0.06716408580541611,
0.041906874626874924,
-0.018769502639770508,
-0.019302241504192352,
0.05300617963075638,
-0.04934050887823105,
-0.03954102843999863,
0.06031893938779831,
-0.036965273320674896,
-0.040440384298563004,
0.0687679871916771,
-4.9579323757598104e-8,
0.014196989126503468,
0.03383606672286987,
-0.045687250792980194,
0.017419928684830666,
0.008420773781836033,
0.024858828634023666,
0.025702496990561485,
0.0748499408364296,
0.027499662712216377,
-0.008887402713298798,
-0.023113371804356575,
-0.05843888968229294,
0.034682415425777435,
-0.030642520636320114,
0.03840813785791397,
-0.009904005564749241,
-0.0866415798664093,
-0.0013352022506296635,
-0.02605411782860756,
0.07961224764585495,
0.042729515582323074,
0.08487236499786377,
0.03612290322780609,
-0.06422706693410873,
0.02950887568295002,
0.005547829903662205,
-0.038979120552539825,
0.12527725100517273,
0.02072053588926792,
-0.048527155071496964,
-0.004984866362065077,
-0.0574764683842659,
-0.09789813309907913,
0.03586406633257866,
-0.01246269978582859,
-0.00486883707344532,
-0.10304433852434158,
0.055385712534189224,
0.06894774734973907,
0.10526061803102493,
-0.03136633336544037,
0.011791657656431198,
-0.005985479336231947,
0.055462248623371124,
-0.08675295114517212,
0.0044186110608279705,
-0.02257074974477291,
-0.09728328138589859,
-0.007297343108803034,
0.03954441472887993,
-0.05956277623772621,
0.043885696679353714,
-0.044102318584918976,
-0.04484777897596359,
-0.13141876459121704,
-0.005578302312642336,
-0.01684112474322319,
-0.06817775219678879,
-0.08340977877378464,
0.008818715810775757,
0.1595335155725479,
-0.03774970769882202,
-0.11875971406698227,
-0.005914090666919947
] | 14,371 |
14,374 |
Spectroscopic Classification of the Transient TCP J10203579+3103424 = AT 2021bxp = ZTF21aaherhg as a high-amplitude dwarf nova
|
Kenta Taguchi, Kohki Uno, Miho Kawabata, Yusuke Tampo, Naoto Kojiguchi, Keisuke Isogai (Kyoto University)
|
We report on spectra of the transient TCP J10203579+3103424 (= AT 2021bxp = ZTF21aaherhg). We obtained the spectra on 2021-02-06.78 UT by using a fiber-fed integral field spectrograph (KOOLS-IFU; Matsubayashi et al. 2019) mounted on the 3.8-m telescope Seimei (Kurita et al. 2020) at Okayama Observatory of Kyoto University.
As reported to TNS, this transient was discovered by XOSS at R = 13.0 on 2021-02-05.9095 UT. They reported that this object is a possible classical nova or CV based on the large amplitude. Before the discovery report, this object was also detected by ASAS-SN at g = 16.1 on 2021-02-05.21 UT. This object was not detected by ZTF on 2021-02-04.288 (g > 19.1) and on 2021-02-04.351 (r > 19.5). There is a PS1 counterpart of g = 20.8, r = 20.8, i = 20.9, and z = 20.7, meaning that the outburst amplitude is ∼ 8 mag.
A previous outburst was detected in 2007 by CRTS. It was V = 14.3 on 2007-10-15.51. Then the object faded to V = 15.9 on 2007-11-12.45 and to V = 19.0 on 2007-12-16.37. The ASAS-SN Sky Patrol, running from 2012, had not recorded any outbursts.
Our spectra show a blue continuum and Balmer absorption lines. These features suggest that this object is a dwarf nova in outburst, not a classical nova. The large outburst amplitude and the long interval of the outbursts suggest a WZ Sge-type dwarf nova.
|
2021-02-07 09:39:00
|
optical,cataclysmic variable,nova,transient,variables
|
2021-02-07
|
09:39:00
| 1,340 |
[
-0.13243070244789124,
-0.017239905893802643,
0.03693525865674019,
0.046882063150405884,
0.031176593154668808,
-0.056219156831502914,
-0.01861182413995266,
0.024851053953170776,
0.004857683554291725,
0.01150160189718008,
0.013080923818051815,
-0.06367368251085281,
-0.04230253025889397,
0.04064641520380974,
0.012481309473514557,
-0.030079461634159088,
0.08935772627592087,
-0.08504980057477951,
0.012057989835739136,
0.05610966682434082,
-0.021461859345436096,
0.10548064112663269,
-0.047982923686504364,
0.007502186112105846,
0.07087673991918564,
0.02569129317998886,
-0.030958862975239754,
-0.06470479816198349,
0.07150642573833466,
-0.004618944134563208,
-0.0032926087733358145,
0.05094284564256668,
-0.1012367308139801,
0.0422171875834465,
0.07238578796386719,
-0.01639646664261818,
-0.0024781294632703066,
-0.04645518213510513,
0.030077151954174042,
-0.010872023180127144,
0.06928712129592896,
-0.09321285039186478,
-0.005644855555146933,
-0.04829968139529228,
0.021076781675219536,
-0.01954008638858795,
-0.017308099195361137,
-0.10157132893800735,
-0.0413057766854763,
-0.025051850825548172,
0.022969909012317657,
-0.013639550656080246,
0.06089106947183609,
0.0780891627073288,
0.05159046873450279,
-0.032732535153627396,
-0.04455934092402458,
-0.09390658140182495,
0.06229931488633156,
0.006622338201850653,
0.03288920223712921,
-0.044222865253686905,
0.031009342521429062,
-0.05594833940267563,
0.05681202933192253,
0.05282275751233101,
-0.019835714250802994,
-0.04244820028543472,
0.09559322148561478,
-0.048852503299713135,
0.0002883239067159593,
0.020404653623700142,
-0.02099020406603813,
0.023972108960151672,
-0.0035296487621963024,
0.04273180291056633,
0.1256280094385147,
0.034955982118844986,
0.05082130804657936,
-0.04842505231499672,
0.03132224455475807,
-0.012912911362946033,
-0.018812088295817375,
-0.06669255346059799,
-0.020344439893960953,
0.07604951411485672,
-0.045720428228378296,
0.06474760919809341,
-0.06570157408714294,
0.009070946834981441,
-0.0044388845562934875,
-0.009630159474909306,
-0.049984823912382126,
0.018026860430836678,
-0.016762953251600266,
0.0054734088480472565,
0.02821720950305462,
-0.002451030071824789,
0.06012895703315735,
0.037867654114961624,
0.0607919916510582,
0.04781055077910423,
-0.049467381089925766,
0.06943720579147339,
-0.0667358860373497,
0.03381422534584999,
0.0077577498741447926,
0.03392650932073593,
-0.013890206813812256,
0.03446003422141075,
0.013097814284265041,
-0.0080300597473979,
-0.046917207539081573,
-0.10133139044046402,
-0.02203410118818283,
0.043450336903333664,
-0.05639743432402611,
0.09471771866083145,
-0.1347428858280182,
-0.0022277343086898327,
-0.010887691751122475,
-0.032652005553245544,
-0.01830200105905533,
0.0690908432006836,
-0.0009483315516263247,
0.06067816913127899,
-0.07001051306724548,
8.628836035697991e-33,
0.06152111291885376,
0.03837520256638527,
-0.004297641571611166,
-0.04723561555147171,
0.0006366702727973461,
-0.00568761769682169,
-0.05158767104148865,
0.04495253041386604,
-0.03641810640692711,
-0.014296015724539757,
-0.04969148710370064,
0.018970025703310966,
0.02873896062374115,
-0.055450063198804855,
-0.05066933110356331,
-0.05824846774339676,
0.020628243684768677,
-0.03880738094449043,
-0.05000460520386696,
-0.025445539504289627,
0.016168424859642982,
0.006085023749619722,
0.007470195181667805,
-0.02258617803454399,
-0.009576378390192986,
0.06362061947584152,
-0.007285514380782843,
-0.022879743948578835,
-0.0193831454962492,
0.04762153699994087,
0.019189324229955673,
-0.011055146344006062,
-0.04753393679857254,
0.01447808276861906,
0.01990893855690956,
-0.05620008707046509,
-0.004282611887902021,
-0.02930319309234619,
-0.0652209147810936,
-0.040529318153858185,
0.02119404822587967,
-0.005663425661623478,
-0.07433546334505081,
0.03372371941804886,
0.04227471724152565,
-0.08436492830514908,
0.0018950680969282985,
-0.019606338813900948,
0.052807267755270004,
-0.006872361991554499,
-0.027894819155335426,
-0.016389595344662666,
-0.06770113110542297,
-0.020912354812026024,
0.035383712500333786,
0.015412392094731331,
0.06662824004888535,
-0.0239313542842865,
-0.0031798321288079023,
0.021360969170928,
0.06762243062257767,
-0.0350850485265255,
-0.05932419374585152,
0.015114665031433105,
-0.04968259111046791,
0.07453369349241257,
-0.02797367423772812,
0.010272147133946419,
-0.0020030676387250423,
0.06231868639588356,
-0.013463775627315044,
0.0833800733089447,
0.03919033706188202,
-0.03904339298605919,
0.09750434011220932,
-0.08499135822057724,
0.002270742319524288,
0.06818851828575134,
-0.004332277458161116,
0.056122925132513046,
-0.08128144592046738,
-0.04729895666241646,
0.10264578461647034,
0.011079159565269947,
-0.052939269691705704,
0.004677811171859503,
-0.0307269636541605,
0.04363643005490303,
0.004029319155961275,
0.02124439738690853,
0.0828331932425499,
0.046347059309482574,
0.022179506719112396,
-0.06191764026880264,
-0.15383286774158478,
-7.947239595369104e-33,
0.060535553842782974,
0.08644596487283707,
-0.07200073450803757,
-0.005026922561228275,
-0.006094809155911207,
-0.02731240727007389,
-0.0298564825206995,
0.12003149092197418,
-0.10985535383224487,
-0.10035386681556702,
0.1004251018166542,
0.022479012608528137,
-0.014723357744514942,
-0.06426221877336502,
0.03783601522445679,
0.01168248150497675,
-0.04242657870054245,
-0.0491904579102993,
0.007320060394704342,
0.009101307019591331,
0.04941249638795853,
-0.04784930869936943,
0.03133087232708931,
-0.06603211909532547,
-0.011770263314247131,
0.038153745234012604,
0.031002769246697426,
-0.03509465605020523,
-0.06652888655662537,
0.01576528698205948,
-0.07631433755159378,
0.04728689789772034,
-0.03935958817601204,
0.0013339192373678088,
-0.006334037519991398,
0.008261914364993572,
0.037502873688936234,
-0.058904170989990234,
-0.06017395108938217,
-0.022213859483599663,
-0.039874982088804245,
0.15501068532466888,
-0.028716260567307472,
0.03484157845377922,
-0.0673525333404541,
0.025468505918979645,
-0.014653580263257027,
0.08186381310224533,
0.015032737515866756,
-0.032330527901649475,
0.05840703472495079,
0.040111806243658066,
0.026828769594430923,
0.049470141530036926,
-0.008309372700750828,
0.11833357810974121,
0.035753216594457626,
0.02146977372467518,
-0.012903939001262188,
0.0370885469019413,
0.09114246070384979,
-0.029701808467507362,
-0.0005186536582186818,
-0.02732517383992672,
0.12825891375541687,
0.0008266031509265304,
0.028759365901350975,
0.038648128509521484,
-0.010497579351067543,
-0.013020516373217106,
0.09311827272176743,
-0.011610105633735657,
-0.09894654899835587,
-0.04033496975898743,
0.07790074497461319,
-0.01928655616939068,
-0.051427312195301056,
-0.06743546575307846,
0.03800540044903755,
-0.009607878513634205,
0.0024876748211681843,
0.0472002737224102,
0.009125557728111744,
-0.011807922273874283,
0.09770341217517853,
0.017290199175477028,
-0.05060005560517311,
-0.0208858884871006,
-0.02072649635374546,
-0.04779887571930885,
-0.03052431344985962,
0.03317270427942276,
-0.08071359246969223,
0.04479378089308739,
0.06576339155435562,
-6.547539044277073e-8,
-0.005504243075847626,
-0.004158525727689266,
-0.11600112169981003,
-0.03062894381582737,
0.08188803493976593,
-0.020699597895145416,
-0.03386987745761871,
0.018622396513819695,
0.028274647891521454,
-0.012415769509971142,
0.02195058949291706,
-0.03132421523332596,
-0.0027782132383435965,
-0.057091958820819855,
0.08768798410892487,
-0.10461290180683136,
-0.060419462621212006,
-0.007014658767729998,
-0.06887594610452652,
0.027359245344996452,
0.07347176969051361,
0.05808328464627266,
0.053157705813646317,
-0.05997117608785629,
0.007309381850063801,
0.02048083394765854,
0.009445582516491413,
0.13074560463428497,
0.04272244870662689,
-0.042186442762613297,
-0.07791055738925934,
-0.036087632179260254,
0.02391623891890049,
-0.014054047875106335,
-0.024239031597971916,
0.06879086792469025,
-0.09450071305036545,
0.018380245193839073,
0.017602471634745598,
0.0751020610332489,
0.024443600326776505,
-0.057064104825258255,
-0.000004286888270144118,
0.04924602434039116,
0.0055139558389782906,
0.0889543667435646,
-0.004881314001977444,
-0.0628199502825737,
-0.003667989280074835,
-0.022340992465615273,
-0.0489414818584919,
-0.03686144948005676,
0.03190985694527626,
-0.020345216616988182,
-0.11861877143383026,
-0.01790561154484749,
-0.03833068162202835,
-0.07257692515850067,
-0.03931756317615509,
-0.009424733929336071,
0.09899546205997467,
-0.03875153511762619,
-0.08455825597047806,
0.011650804430246353
] | 14,372 |
14,375 |
Swift detects X-rays from XTE J1859+226; continued optical brightening.
|
Eric C. Bellm (UW)
|
We analyzed 1.4 ksec of PC-mode Swift-XRT quicklook data for the black hole LMXB XTE J1859+226, which has brightened in the optical (ATel #14372). We detect a single source at 18h58m41.25s +22d39m35.5s in the 0.3-10 keV band, which we identify as XTE J1859+226. The spectrum is well-fit by an absorbed power law with photon index 1.7+/-0.4 and an observed 0.3-10 keV flux of 7.9 (+2.0, -1.5) x 10-12 erg cm-2 s-1. This represents a substantial brightening relative to the quiescent 0.3-8 keV flux of 1.5 x 10-15 erg cm-2 s-1 reported by Tomsick et al. (2003). Zwicky Transient Facility observations on UTC 2021-02-06.6 indicate that the source continues to brighten in the the optical, with the flux increasing by ~0.4 mag in the past two days (see https://antares.noirlab.edu/loci/ANT2021dn4jk). We conclude that XTE J1859+226 is in the early stages of an outburst; multiwavelength observations are encouraged. Based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grant No. AST-2034437 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, and IN2P3, France. Operations are conducted by COO, IPAC, and UW. We acknowledge further support from the NSF under grants AST-1812779 and the Heising-Simons Foundation under grant 2018-0908.
|
2021-02-07 10:13:00
|
optical,x-ray,binary,black hole,transient
|
2021-02-07
|
10:13:00
| 1,713 |
[
-0.03234710171818733,
-0.02828909642994404,
0.05658625811338425,
0.10357777774333954,
0.047683168202638626,
-0.03856975585222244,
0.07411835342645645,
-0.005530987866222858,
0.0428517647087574,
-0.05815591663122177,
0.0066919787786901,
-0.06702672690153122,
-0.039181023836135864,
-0.0390973761677742,
-0.008207068778574467,
0.059775643050670624,
0.06329372525215149,
-0.03842752426862717,
-0.055850669741630554,
0.03444547951221466,
0.030429106205701828,
-0.0336761437356472,
-0.017777884379029274,
0.02711091749370098,
0.005823199637234211,
-0.06050727516412735,
0.024721981957554817,
-0.019295936450362206,
-0.019727574661374092,
-0.03484879434108734,
0.00527043454349041,
0.07438448071479797,
0.0021374719217419624,
0.07270941138267517,
0.04881994426250458,
0.0346730574965477,
0.05466831102967262,
-0.023897500708699226,
-0.013655900955200195,
-0.005446966737508774,
-0.018528884276747704,
-0.06263991445302963,
0.045825257897377014,
0.0457310676574707,
-0.02359101176261902,
0.06500262022018433,
0.015358964912593365,
-0.017596427351236343,
-0.08642160147428513,
-0.04805381968617439,
0.07012838125228882,
-0.036883965134620667,
0.0022783768363296986,
0.044037315994501114,
0.07631593197584152,
0.07973922044038773,
-0.13494054973125458,
0.025045743212103844,
0.07974661141633987,
-0.008346149697899818,
-0.007517147343605757,
0.02179870568215847,
-0.023254044353961945,
-0.04466567933559418,
0.007119762245565653,
-0.02132294699549675,
0.0010847190860658884,
-0.06732768565416336,
-0.034733906388282776,
-0.03882627189159393,
0.0338054820895195,
0.039569418877363205,
-0.02603636495769024,
-0.08404968678951263,
0.010055754333734512,
0.04123085364699364,
0.08920428901910782,
-0.0016075843013823032,
0.04668639600276947,
-0.10164366662502289,
0.06940767914056778,
0.06899434328079224,
0.011124629527330399,
0.011253832839429379,
0.03889882192015648,
-0.03555555269122124,
-0.0047471895813941956,
0.041330303996801376,
-0.031005583703517914,
0.011794648133218288,
0.03106408379971981,
-0.03125762939453125,
-0.04222164303064346,
-0.07716937363147736,
0.07316689938306808,
0.00022574760077986866,
0.029949700459837914,
-0.05143044888973236,
0.04120105877518654,
0.06231336295604706,
0.009545201435685158,
-0.018970077857375145,
-0.023414824157953262,
0.09414971619844437,
-0.004944953136146069,
0.00876886211335659,
0.07237318903207779,
0.10717668384313583,
-0.0668935626745224,
0.0060628801584243774,
0.07263245433568954,
-0.003987711388617754,
-0.004441327881067991,
-0.08559632301330566,
0.02116483822464943,
0.013554375618696213,
-0.0637924000620842,
0.11041990667581558,
-0.08357754349708557,
0.035368386656045914,
-0.05396927520632744,
0.0653260201215744,
-0.024210046976804733,
0.09464570134878159,
-0.08381883800029755,
0.03074553981423378,
-0.017790092155337334,
5.133471257433272e-33,
0.043400514870882034,
0.022537359967827797,
-0.07042621821165085,
-0.09859277307987213,
-0.0227248165756464,
-0.11268047243356705,
0.0788717269897461,
0.020151561126112938,
-0.12232150882482529,
0.02241184376180172,
-0.012140580452978611,
0.015134657733142376,
-0.039857782423496246,
0.0006805522716604173,
-0.03834594041109085,
-0.030042754486203194,
0.029647523537278175,
0.05140116065740585,
-0.05995766445994377,
0.07034555822610855,
-0.04759444668889046,
-0.010946003720164299,
-0.027189532294869423,
-0.03637999668717384,
-0.01887475699186325,
0.012295990251004696,
-0.0004946578992530704,
0.016334932297468185,
-0.02911490760743618,
0.01962350308895111,
-0.06000124290585518,
0.01605060137808323,
-0.005881620105355978,
0.04373611882328987,
-0.06342624872922897,
-0.0332777164876461,
0.06955860555171967,
0.02641432359814644,
-0.0036643350031226873,
-0.01261088065803051,
-0.056284841150045395,
0.10820116847753525,
-0.04328032210469246,
0.00855929497629404,
0.01426524855196476,
0.028666989877820015,
0.03080293908715248,
-0.041747041046619415,
0.08029536157846451,
0.03458740562200546,
-0.036737021058797836,
-0.10599461942911148,
-0.04307372868061066,
0.024134285748004913,
0.051660388708114624,
0.002662797225639224,
0.05601376295089722,
0.03698677942156792,
0.05366479605436325,
0.027003377676010132,
0.0328415222465992,
0.012509182095527649,
0.04471990093588829,
-0.014381936751306057,
-0.0024733624886721373,
0.02175172045826912,
-0.028055129572749138,
-0.03325408324599266,
-0.1056446060538292,
-0.003076511900871992,
-0.07202275097370148,
0.058982692658901215,
0.10506965219974518,
-0.14486880600452423,
0.06392300128936768,
-0.017823847010731697,
0.016746513545513153,
0.07475785166025162,
0.0030108990613371134,
0.08092647045850754,
-0.0004929897258989513,
-0.04544586315751076,
0.03778551146388054,
-0.050191935151815414,
-0.07793138921260834,
0.06999898701906204,
-0.0765625461935997,
-0.007538890466094017,
-0.017261793836951256,
-0.016147946938872337,
0.06864657998085022,
-0.06748871505260468,
0.000941210484597832,
-0.08128199726343155,
-0.10855503380298615,
-3.353568935486858e-33,
0.07839304953813553,
0.0508781336247921,
-0.043245717883110046,
0.08617343008518219,
-0.0006381281418725848,
0.050067391246557236,
0.04917245730757713,
0.04040057212114334,
-0.06261507421731949,
-0.04962657764554024,
0.054762035608291626,
0.04149390757083893,
-0.05849717929959297,
-0.06563246995210648,
0.031196124851703644,
-0.04795975983142853,
0.05870059132575989,
0.047497186809778214,
-0.010912461206316948,
0.02644030936062336,
0.027777453884482384,
0.006801346782594919,
0.029541252180933952,
-0.05444672331213951,
-0.009656243026256561,
0.03582106903195381,
0.012621811591088772,
0.06848297268152237,
-0.042251184582710266,
-0.025060273706912994,
-0.06032833084464073,
0.02472851425409317,
0.0035823825746774673,
-0.027399668470025063,
-0.0006399566773325205,
-0.029242297634482384,
0.001335282577201724,
-0.03035271354019642,
-0.1040620431303978,
0.00936161633580923,
0.030882110819220543,
0.07599038630723953,
-0.015186766162514687,
0.054564837366342545,
-0.04898933321237564,
0.09188245236873627,
0.000989206018857658,
0.040132809430360794,
0.10578253865242004,
-0.043681513518095016,
-0.0011651464737951756,
-0.05489000305533409,
-0.056442033499479294,
0.10939156264066696,
-0.08270614594221115,
0.018672440201044083,
0.02265758067369461,
0.06402844190597534,
-0.03434984013438225,
0.0474037267267704,
-0.0037911979015916586,
-0.03223562240600586,
0.037665653973817825,
-0.059465959668159485,
0.052754491567611694,
-0.056344252079725266,
-0.012595785781741142,
0.07018165290355682,
0.08015118539333344,
0.0090835215523839,
0.019350523129105568,
-0.11533240973949432,
0.0103912940248847,
-0.02979365363717079,
0.023476876318454742,
0.0248284749686718,
0.03690026327967644,
-0.08847985416650772,
0.08468101173639297,
0.04447908326983452,
0.0019644582644104958,
0.049123261123895645,
0.023372825235128403,
0.013999073766171932,
0.06719055771827698,
-0.04143365100026131,
0.04142019897699356,
-0.018220558762550354,
-0.014993259683251381,
-0.049937449395656586,
-0.04084183648228645,
0.003117949003353715,
0.030459702014923096,
0.026774268597364426,
0.04816603660583496,
-6.50981633043557e-8,
0.04393387958407402,
-0.0013182866387069225,
-0.07750367373228073,
0.024178676307201385,
0.05380944162607193,
-0.07287594676017761,
-0.021030038595199585,
0.02479618228971958,
0.03374182805418968,
0.028966503217816353,
0.027525797486305237,
-0.07249478995800018,
0.005375959444791079,
-0.06996916234493256,
0.07144705951213837,
-0.0414588488638401,
-0.030296247452497482,
-0.0761336162686348,
-0.035885948687791824,
0.003451795084401965,
0.030583737418055534,
0.021312028169631958,
0.0785028263926506,
-0.13420526683330536,
0.020827054977416992,
0.004865687806159258,
-0.02749335579574108,
0.07829489558935165,
0.001195581047795713,
-0.012561855837702751,
-0.04644247144460678,
0.039548929780721664,
-0.04850725084543228,
0.001874502981081605,
0.0060639879666268826,
0.07069401443004608,
-0.10313951224088669,
0.05766299366950989,
0.09724126011133194,
0.07927379012107849,
-0.07419403642416,
-0.060118768364191055,
0.04099099710583687,
0.02115420438349247,
-0.10827048867940903,
0.041281092911958694,
0.01758553273975849,
-0.07602080702781677,
-0.006278190296143293,
0.031428467482328415,
-0.0035884061362594366,
-0.01717333123087883,
-0.023681189864873886,
-0.04263952746987343,
-0.07295132428407669,
-0.00566811254248023,
0.002992859575897455,
-0.006617397535592318,
-0.012721292674541473,
-0.031135786324739456,
0.0388098806142807,
-0.05646294355392456,
-0.08343871682882309,
-0.022365426644682884
] | 14,373 |
14,376 |
New Activity Episode of the Unusual Variable Star DDE 175
|
D. Denisenko (Vorobyovy Gory Education Center, Moscow, Russia; SAI MSU), D. Fernandez Ortiz, A. Kolesnikov, A. Minkovskiy, E. Tokareva (Vorobyovy Gory Education Center)
|
We report on the first observations of the unusual variable star DDE 175 = IPHAS J190356.18+090158.4 after the winter conjunction with the Sun. Observations were obtained remotely with the iTelescope.Net T11 instrument (0.50-m f/6.8 reflector + 0.66 focal reducer + FLI PL11002M CCD) located in Mayhill, New Mexico. The following magnitudes (unfiltered with the Red zero point) were obtained with T11 using 2MASS J19035259+0901228 as a reference star with r=14.66.
2020-04-19.4348 18.39 2020-05-31.4156 18.53 2020-06-21.3600 19.12 2021-02-07.5184 16.82
This is close to the maximum brightness level of this object as observed by Zwicky Transient Facility (Masci et al., 2019), see the Lasair light curve of ZTF18aaywchl. Before entering the solar conjunction DDE 175 was fading by 1.2 magnitude in one month, from 18.3r on 2020-10-01 to 19.7r on 2020-10-28, following the long plato lasting about 200 days from April to October 2020.
The most likely distance to DDE 175 according to Gaia EDR3 is 2.5 kpc, corresponding to distance modulus (m-M)=12.0. Assuming the galactic absorption in the direction of DDE 175 to be A_g=7.4, A_r=5.1, we obtain the absolute magnitude to be around M=-1 at the peak (r=15.9) and M~+4 at quiescence and nearly white colors. The classification of this variable star remain unclear.
The spectroscopy and simultaneous observations in the wide range of wavelengths are strongly needed to identify the nature of this unusual object.
|
2021-02-08 00:16:00
|
optical,cataclysmic variable,nova,star,the sun,transient,variables,request for observations
|
2021-02-08
|
00:16:00
| 1,463 |
[
-0.06735822558403015,
0.06252585351467133,
0.04192131757736206,
0.041176315397024155,
0.018083449453115463,
-0.07529020309448242,
-0.01922662928700447,
0.028740618377923965,
0.031626224517822266,
-0.018285226076841354,
-0.03790438547730446,
-0.02374429814517498,
-0.008905816823244095,
0.0005179210565984249,
0.01206127554178238,
-0.04521593078970909,
0.0235583633184433,
-0.08812326192855835,
0.005376351065933704,
0.002249042736366391,
-0.0032807772513478994,
0.021921658888459206,
-0.0499948114156723,
0.01288768369704485,
0.041807129979133606,
0.006261360831558704,
-0.04220195114612579,
-0.028571348637342453,
0.00223264517262578,
-0.007157235872000456,
0.057064834982156754,
0.10635663568973541,
-0.06840891391038895,
0.03629087656736374,
0.008245889097452164,
-0.034557122737169266,
0.07597244530916214,
-0.012853703461587429,
0.021496353670954704,
-0.007295452989637852,
0.025912031531333923,
-0.02783617563545704,
0.0305816438049078,
-0.04043759033083916,
-0.043029095977544785,
0.0145569434389472,
-0.0675613135099411,
-0.057820845395326614,
-0.009271351620554924,
0.019252974539995193,
0.006369907874614,
0.019936569035053253,
-0.03306256979703903,
0.053556788712739944,
0.051524385809898376,
0.07305192947387695,
0.00635968241840601,
-0.055315032601356506,
0.05642601102590561,
-0.029930733144283295,
0.020497016608715057,
-0.0005466374568641186,
-0.026958223432302475,
-0.028999831527471542,
0.07979574054479599,
-0.03640780970454216,
-0.09687753021717072,
-0.0855492502450943,
-0.003872012021020055,
-0.0746956616640091,
-0.015556140802800655,
0.07475841790437698,
-0.010263851843774319,
-0.06765861809253693,
-0.03419743850827217,
0.02753857709467411,
0.05679416283965111,
-0.045991815626621246,
0.07732590287923813,
-0.03902418911457062,
0.05090174451470375,
-0.0004857978201471269,
-0.008382094092667103,
0.04867902025580406,
-0.033357612788677216,
-0.006664494518190622,
-0.030287623405456543,
0.03073437325656414,
0.07234219461679459,
0.089992955327034,
0.013785920105874538,
-0.007994933985173702,
-0.09724322706460953,
0.03428226709365845,
-0.00006013739402987994,
0.015406543388962746,
0.07013912498950958,
-0.06332376599311829,
0.061382029205560684,
0.05479985475540161,
0.049963682889938354,
-0.05222642421722412,
-0.02035975269973278,
0.08502516895532608,
-0.05934135243296623,
0.02772834151983261,
0.038241688162088394,
-0.06040003523230553,
-0.013673773035407066,
0.04291541874408722,
0.041624635457992554,
0.021593479439616203,
-0.028380421921610832,
-0.03969968855381012,
0.0073937103152275085,
-0.050996340811252594,
-0.03647477924823761,
0.08223296701908112,
-0.10172416269779205,
-0.07907222956418991,
-0.015694214031100273,
0.05068733170628548,
0.006110241170972586,
0.16470648348331451,
0.028322122991085052,
0.031032564118504524,
-0.041694264858961105,
6.33391767990367e-33,
0.1494634598493576,
0.053527917712926865,
0.005348198115825653,
-0.027927912771701813,
-0.06759429723024368,
0.012777968309819698,
-0.07159574329853058,
0.09269247949123383,
-0.03762245178222656,
0.01027972437441349,
-0.08002647012472153,
0.024345627054572105,
0.01570110023021698,
-0.017748543992638588,
0.045184843242168427,
-0.03708416968584061,
0.07162205874919891,
0.05527258664369583,
-0.11056031286716461,
0.027745477855205536,
-0.0007272155489772558,
0.02741285227239132,
-0.036934155970811844,
-0.016369909048080444,
0.030236108228564262,
0.0856926217675209,
0.006104846950620413,
0.016867535188794136,
-0.02254371903836727,
0.011892576701939106,
0.06796881556510925,
-0.046348463743925095,
0.014841967262327671,
0.08282260596752167,
-0.01053813099861145,
-0.0567379966378212,
-0.011656220071017742,
0.0448603481054306,
-0.053042229264974594,
-0.05642795190215111,
0.07808586210012436,
0.02570788376033306,
-0.06785677373409271,
0.024223368614912033,
0.02564423903822899,
-0.025033649057149887,
0.06080460920929909,
-0.03634827956557274,
0.012354059144854546,
0.07361719757318497,
-0.08789926767349243,
-0.02664470672607422,
-0.08211608231067657,
-0.04164821282029152,
-0.012383722700178623,
0.03494303673505783,
0.03419718146324158,
-0.012381698936223984,
-0.011850560083985329,
-0.008420197293162346,
0.01449081301689148,
0.011469164863228798,
0.027425376698374748,
-0.01601080782711506,
0.020523419603705406,
0.04794910177588463,
-0.015764053910970688,
-0.00022687479213345796,
-0.09417632967233658,
0.05133536085486412,
-0.03480120003223419,
0.04167734086513519,
0.07552925497293472,
-0.043215565383434296,
0.07902731746435165,
-0.024230165407061577,
0.07397571206092834,
0.033703163266181946,
0.019549889490008354,
0.050050269812345505,
-0.07995454967021942,
0.04664330556988716,
0.07974624633789062,
-0.11147382110357285,
-0.09200827032327652,
-0.0223640538752079,
-0.030671387910842896,
0.0038353540003299713,
-0.04920576885342598,
-0.05827184394001961,
0.06692308932542801,
-0.01048364769667387,
-0.02334013022482395,
-0.02366068586707115,
-0.10040074586868286,
-7.799754727275247e-33,
-0.01832074113190174,
-0.03704862669110298,
-0.057037603110075,
-0.011245938949286938,
0.0089335385710001,
-0.004567617550492287,
0.047408606857061386,
0.07113977521657944,
-0.033761389553546906,
-0.0640237107872963,
0.02722482942044735,
-0.012881637550890446,
-0.054470933973789215,
-0.07400039583444595,
0.08540059626102448,
-0.020335044711828232,
-0.011021965183317661,
0.14195697009563446,
-0.087153360247612,
0.009035948663949966,
0.02311883307993412,
0.045398954302072525,
0.03469327837228775,
-0.05615789443254471,
-0.036611828953027725,
0.021319949999451637,
0.03795358166098595,
-0.06825404614210129,
-0.07002697885036469,
0.016932042315602303,
-0.04892493411898613,
0.026327135041356087,
0.02054114267230034,
0.04155299812555313,
-0.045983798801898956,
0.03693610802292824,
-0.02260775677859783,
-0.11328441649675369,
-0.0657849833369255,
-0.00012458619312383235,
-0.01977788843214512,
0.06424427032470703,
0.021166229620575905,
0.03480124473571777,
-0.036964621394872665,
-0.059582557529211044,
-0.0055160666815936565,
0.10203033685684204,
0.04931128770112991,
-0.007341153919696808,
0.021165965124964714,
-0.05136360228061676,
0.0064689768478274345,
0.08022161573171616,
0.035727426409721375,
0.000021807192752021365,
0.033736392855644226,
0.03680538758635521,
0.018578337505459785,
0.006653334479779005,
0.06858637928962708,
-0.0363025963306427,
0.005590925458818674,
-0.011984697543084621,
-0.013308894820511341,
-0.04699930548667908,
0.025766931474208832,
0.004766237922012806,
0.04783475399017334,
0.054551731795072556,
0.10140949487686157,
-0.05231182277202606,
-0.03824124112725258,
-0.04366036504507065,
0.06911439448595047,
0.02401258796453476,
-0.04186129942536354,
0.0005509667680598795,
0.0030025357846170664,
0.03055083006620407,
-0.0597301721572876,
0.031107453629374504,
-0.010243117809295654,
0.05440134555101395,
0.09299790859222412,
-0.036073748022317886,
-0.017428677529096603,
-0.061497412621974945,
-0.027044326066970825,
0.0012050546938553452,
-0.05108977109193802,
0.07030794769525528,
-0.01586766727268696,
0.03829214721918106,
0.039027776569128036,
-6.65290684764841e-8,
0.03850647062063217,
-0.009309031069278717,
-0.06988463550806046,
0.08552349358797073,
0.012532571330666542,
-0.010279080830514431,
0.01914014108479023,
-0.02466006577014923,
-0.00498548150062561,
-0.007579103112220764,
0.020673520863056183,
-0.04076215624809265,
0.03888045996427536,
-0.06278865039348602,
0.05270529165863991,
-0.11150966584682465,
-0.055988311767578125,
-0.04594610258936882,
-0.06339646130800247,
0.06821703165769577,
0.03936072438955307,
0.02319265715777874,
0.007208936382085085,
-0.10024399310350418,
0.015669774264097214,
0.03585953265428543,
-0.04490956664085388,
0.06330002099275589,
0.005583955906331539,
-0.050176966935396194,
-0.03017461858689785,
0.015459230169653893,
-0.014449146576225758,
-0.11069498211145401,
-0.048208415508270264,
0.08093974739313126,
-0.006351855583488941,
0.1037457287311554,
0.033396556973457336,
0.12570561468601227,
-0.02629111148416996,
-0.020075488835573196,
-0.020263899117708206,
0.024104464799165726,
-0.052215948700904846,
0.05435359105467796,
-0.04888558015227318,
-0.08492273837327957,
0.011207295581698418,
-0.024905135855078697,
-0.0685909166932106,
0.051884740591049194,
-0.08762237429618835,
-0.03060716949403286,
-0.10755994915962219,
-0.008344162255525589,
-0.03184057027101517,
-0.02322111278772354,
-0.08123116195201874,
-0.0077822827734053135,
0.11877474933862686,
-0.0625864788889885,
-0.15989144146442413,
-0.02735188417136669
] | 14,374 |
14,377 |
Radio detection of Supernova SN2021bhd
|
Itai Sfaradi, Assaf Horesh (Hebrew University of Jerusalem)
|
We report the detection of radio emission from the Type Ib/c supernova in UGC 8737, SN2021bhd (TNS report 97890; TNS AstroNote 2021-31; TNS AstroNote 2021-39). The Jansky Very Large Array (VLA) conducted a 2 hours observation in A configuration, under our approved DDT program (PI Sfaradi), on the 2021-02-07.8. We performed an analysis of the data using the 3C286 as a flux calibrator and J1436+6336 as a gain calibrator. A single point source is detected in the VLA image in X band (a central frequency of 10 GHz) at RA = 13:48:14.754 Dec = +68:05:22.92 (consistent with the position of SN2021bhd) with a flux density of ~0.47 mJy. We plan to perform follow-up observations with the VLA, and encourage further high cadence multi frequency radio observations with other facilities. We thank the VLA and NRAO staff for scheduling and performing this observation.
|
2021-02-08 19:26:00
|
radio,supernovae,transient
|
2021-02-08
|
19:26:00
| 862 |
[
-0.06207650527358055,
0.03249890357255936,
-0.09056952595710754,
0.03756045550107956,
0.007388660218566656,
-0.0051992302760481834,
-0.03269302099943161,
-0.004343515727669001,
0.0008681145263835788,
-0.04935286566615105,
-0.06642500311136246,
-0.055315714329481125,
-0.0013482541544362903,
-0.0291388351470232,
0.07869485020637512,
-0.05203649401664734,
0.027482934296131134,
-0.03896833211183548,
0.007132303435355425,
-0.01101283822208643,
-0.05263512581586838,
0.07233713567256927,
-0.026850977912545204,
0.02020329050719738,
0.07646358758211136,
-0.003912652377039194,
-0.07354703545570374,
-0.07228007912635803,
0.003817847464233637,
-0.008058799430727959,
0.04154980182647705,
0.07460188865661621,
0.014724514447152615,
0.07601191103458405,
-0.006451772525906563,
-0.08346202969551086,
-0.04619608446955681,
-0.013461582362651825,
0.004326448310166597,
0.018046172335743904,
0.005539736710488796,
0.005243395455181599,
0.025231733918190002,
0.05023505166172981,
-0.05710018426179886,
-0.021955415606498718,
-0.07279445230960846,
-0.08425945043563843,
0.008200708776712418,
0.0369642972946167,
0.02103976160287857,
-0.022012807428836823,
0.042410947382450104,
0.08807683736085892,
0.0479893684387207,
0.025629855692386627,
-0.017228929325938225,
-0.08285785466432571,
0.08998805284500122,
0.017653044313192368,
0.02986144833266735,
-0.03519858047366142,
-0.07723228633403778,
-0.05836319178342819,
0.031167002394795418,
-0.02604982629418373,
-0.05714825168251991,
0.001947572804056108,
0.03752865642309189,
-0.04744388163089752,
0.013889744877815247,
0.06434419751167297,
-0.0013409805251285434,
-0.020506471395492554,
0.013906536623835564,
0.008791634812951088,
0.09070173650979996,
0.033234212547540665,
0.12254952639341354,
-0.06324625760316849,
-0.004316521808505058,
0.0008018673397600651,
-0.03357018902897835,
-0.07244683802127838,
-0.03299008682370186,
0.02490082010626793,
-0.06690368056297302,
0.08480382710695267,
0.034003134816884995,
0.01868228055536747,
0.01565087027847767,
0.04148894548416138,
-0.10628373175859451,
-0.021825773641467094,
0.036468375474214554,
0.07489556074142456,
0.06224168464541435,
-0.058559391647577286,
0.0566001832485199,
0.07805709540843964,
0.08226116001605988,
0.05778122320771217,
-0.05899973213672638,
0.07590557634830475,
-0.06209690123796463,
0.006380866281688213,
0.02958063967525959,
0.06963440030813217,
-0.14752550423145294,
0.020154831930994987,
0.05596201494336128,
-0.013431836850941181,
-0.005324884317815304,
-0.06032892316579819,
0.01275961846113205,
0.08292664587497711,
-0.017358524724841118,
0.13611643016338348,
-0.09462659060955048,
-0.03007904812693596,
-0.0979139506816864,
0.0027738292701542377,
0.0326637327671051,
0.07864363491535187,
0.02557143196463585,
0.0014747069217264652,
-0.07865561544895172,
5.808684763437194e-33,
0.02071382664144039,
0.06204218417406082,
-0.08998247981071472,
0.006581575609743595,
-0.05344902724027634,
-0.035196393728256226,
-0.04461979866027832,
0.09792575240135193,
0.002721457276493311,
0.029584785923361778,
-0.007795214653015137,
0.009385284967720509,
-0.03926099091768265,
-0.0350775308907032,
-0.01801416091620922,
-0.017454758286476135,
0.05404365062713623,
-0.016007456928491592,
-0.10665097087621689,
0.02336718887090683,
0.04483385384082794,
-0.06486578285694122,
-0.03180551156401634,
-0.034799061715602875,
-0.033359382301568985,
0.04778170585632324,
0.06348038464784622,
0.055638328194618225,
-0.023171348497271538,
0.05047915130853653,
0.027267146855592728,
-0.02310912124812603,
0.014060810208320618,
0.027932971715927124,
0.0005694630672223866,
-0.09905660152435303,
-0.045714542269706726,
0.020032696425914764,
-0.07161465287208557,
0.05413408204913139,
0.1035379096865654,
0.08025051653385162,
-0.01466225553303957,
0.014453297480940819,
0.035967350006103516,
0.028726717457175255,
0.0329941026866436,
0.05587369576096535,
0.08046475052833557,
0.10277610272169113,
-0.032255612313747406,
-0.01491229422390461,
-0.10939974337816238,
-0.0031471606343984604,
0.043330118060112,
0.0618240088224411,
0.03911687061190605,
0.026084136217832565,
0.02572115696966648,
0.06908898800611496,
0.0045989579521119595,
-0.011891620233654976,
0.022849222645163536,
0.0624658577144146,
-0.07142157852649689,
0.02748975344002247,
-0.03332850709557533,
0.013577228412032127,
0.0068321567960083485,
-0.010274906642735004,
-0.03780917078256607,
0.02869275212287903,
0.1227416917681694,
-0.07277192175388336,
0.057665351778268814,
-0.05335720255970955,
-0.022992447018623352,
0.0572953037917614,
0.021202092990279198,
0.015630684792995453,
0.023568332195281982,
-0.005477125756442547,
0.047575242817401886,
-0.009918422438204288,
-0.013171049766242504,
-0.052203789353370667,
-0.10177207738161087,
-0.010042968206107616,
-0.015224341303110123,
-0.09448882937431335,
0.04337821155786514,
0.026869608089327812,
0.012244509533047676,
-0.01122586615383625,
-0.0779748260974884,
-4.723662702667929e-33,
0.05031614005565643,
0.04737156257033348,
-0.008806216530501842,
-0.0015908615896478295,
0.0020322813652455807,
0.007075783796608448,
0.015917351469397545,
0.0005688100936822593,
-0.0398419164121151,
-0.035822175443172455,
0.01377731654793024,
0.054574765264987946,
-0.011671556159853935,
-0.07124984264373779,
-0.014625041745603085,
-0.06648993492126465,
0.08793839812278748,
-0.009619188494980335,
-0.011005674488842487,
-0.034472838044166565,
-0.00876969750970602,
0.01521690096706152,
0.0033213079441338778,
-0.03347470611333847,
-0.008988821879029274,
-0.028167108073830605,
0.04279843717813492,
0.022071365267038345,
-0.017241178080439568,
0.07199697196483612,
-0.012765134684741497,
0.008153850212693214,
0.009004688821732998,
-0.010184772312641144,
0.019583921879529953,
-0.011288991197943687,
0.09890744835138321,
0.01705321855843067,
-0.06610708683729172,
0.015692589804530144,
-0.017019012942910194,
0.06763723492622375,
-0.04914777725934982,
0.0014494507340714335,
-0.005375795532017946,
0.005434356164187193,
0.029331905767321587,
0.06535807251930237,
0.09211956709623337,
-0.01894552633166313,
0.013833178207278252,
-0.1172492727637291,
-0.027521705254912376,
0.04500265792012215,
0.002525968011468649,
0.037368934601545334,
0.08671053498983383,
0.04421500116586685,
-0.01421921607106924,
-0.014040849171578884,
0.022934379056096077,
-0.03248796984553337,
0.030245887115597725,
-0.019834578037261963,
0.03799201920628548,
-0.04632674157619476,
0.01761646755039692,
0.050359323620796204,
0.06751536577939987,
0.07186640053987503,
-0.009686683304607868,
-0.11323365569114685,
-0.04832086339592934,
-0.008949131704866886,
-0.016952820122241974,
0.001552770845592022,
0.044044408947229385,
-0.05680716410279274,
0.06134496629238129,
0.013174633495509624,
-0.05810665339231491,
0.013321029022336006,
0.002131578978151083,
0.00523735536262393,
0.11042499542236328,
0.017215456813573837,
0.005740760359913111,
-0.06970623880624771,
-0.038226768374443054,
-0.03272240608930588,
-0.029630668461322784,
0.0502464659512043,
-0.01805560663342476,
-0.010041110217571259,
0.07791447639465332,
-5.984690432114803e-8,
-0.021519673988223076,
-0.027063488960266113,
-0.0813390463590622,
0.07158496975898743,
0.03398864343762398,
-0.07718745619058609,
-0.000016473259165650234,
-0.009795733727514744,
0.06472892314195633,
0.026731161400675774,
0.00205220771022141,
-0.06924087554216385,
0.004056971520185471,
-0.020068779587745667,
0.060857441276311874,
-0.0582752488553524,
-0.02432241663336754,
-0.01399801392108202,
-0.07228823006153107,
0.00893326848745346,
0.040857911109924316,
0.03412015363574028,
0.11466366052627563,
-0.13615401089191437,
0.04707610607147217,
-0.04785724729299545,
-0.047587987035512924,
0.10157115012407303,
0.048426106572151184,
-0.07744357734918594,
-0.020267603918910027,
-0.04243030771613121,
-0.08189699053764343,
-0.04830973967909813,
-0.024869095534086227,
0.04800525680184364,
0.019849378615617752,
-0.012059511616826057,
0.12967456877231598,
0.09485220909118652,
-0.060487739741802216,
-0.04138849675655365,
-0.013181188143789768,
0.036772049963474274,
-0.024259312078356743,
0.03527635708451271,
-0.007237653248012066,
-0.02264927513897419,
-0.052380919456481934,
-0.06436989456415176,
0.007242423482239246,
-0.03788892552256584,
-0.037642017006874084,
-0.09174956381320953,
-0.024392874911427498,
0.02529793046414852,
-0.042702969163656235,
-0.042065124958753586,
0.03219778835773468,
0.053745392709970474,
0.02578919008374214,
-0.02678200602531433,
-0.16421626508235931,
-0.06168922781944275
] | 14,375 |
14,378 |
Swift resumes X-ray monitoring observations of the Galactic center after Sun constraints
|
N. Degenaar, R. Wijnands (University of Amsterdam), M. T. Reynolds, J. M. Miller (University of Michigan), J. A. Kennea (Penn State University), on behalf of a larger collaboration
|
Starting on 2021 February 4, Swift resumed its X-ray monitoring campaign of the Galactic center during which daily 1.0-ks exposures are obtained (see Degenaar et al. 2015 for a description of the program). The ~20x20 arcmin region around Sgr A* that is covered by our campaign currently does not contain any active X-ray transients. For a distance of 8 kpc, the sensitivity limit of our daily ~1-ks XRT exposures convert to an approximate luminosity of ~1E34 erg/s.
In the last observation before the Sun-constrained window, performed on 2020 November 2, there was one transient active: the neutron star low-mass X-ray binary (LMXB) AX J1745.6-2901. This source had entered an outburst in 2019 September (ATel #13150) and remained active since (see ATels #13683 and #13839). Its long outburst must have thus ended between November 2 and February 4.
We also report that the transient neutron star LMXB GRS 1741-2853 returned to quiescence just before the Sun-constrained window. It was last detected in the observation performed on 2020 October 26. This outburst had started around 2020 April 25 (ATel #13683) and thus had a duration of 6 months. Since the beginning of our program in 2006, numerous outbursts of this source have been detected (e.g., Degenaar & Wijnands 2009, 2010, 2014; Degenaar et al., 2015; ATels #8881, #10859), but typically these lasted only for 20-40 days. The 2020 outburst is thus by far the longest one that has been observed for this source over the past 15 years.
Quick-look results of our daily Swift/XRT observations of the Galactic center are immediately posted at the Swift Sgr A* Monitoring Campaign Website.
References: Degenaar & Wijnands 2009, A&A 495, 547 Degenaar & Wijnands 2010, A&A 524, 69 Degenaar et al. 2014, IAU conf. proc. 303, 315 Degenaar et al. 2015, JHEA 7, 137
|
2021-02-08 23:06:00
|
x-ray,binary,black hole,neutron star,star,the sun,transient
|
2021-02-08
|
23:06:00
| 1,816 |
[
-0.0003874471876770258,
-0.07482081651687622,
0.060915760695934296,
0.06592654436826706,
0.07833898812532425,
-0.06694117188453674,
-0.005010420456528664,
0.09387428313493729,
-0.05721747502684593,
-0.026941843330860138,
0.02600630186498165,
-0.008510143496096134,
0.06453283131122589,
-0.002192910062149167,
-0.00285202800296247,
-0.03855621814727783,
0.040644679218530655,
-0.11323853582143784,
0.0023537911474704742,
0.06144891306757927,
-0.04509474337100983,
0.050335001200437546,
-0.050942376255989075,
0.01289044413715601,
0.022042129188776016,
-0.0318375900387764,
0.018522704020142555,
-0.11282268911600113,
0.003729102201759815,
-0.01175574492663145,
0.006943294312804937,
0.07638826221227646,
0.0002769703569356352,
0.03209948167204857,
0.05768553912639618,
0.009850047528743744,
0.062246665358543396,
-0.06944731622934341,
-0.013121516443789005,
-0.05218600109219551,
-0.02116822823882103,
-0.0714818462729454,
0.020265894010663033,
0.01650487817823887,
-0.028386222198605537,
-0.006177246570587158,
-0.014447476714849472,
-0.0867699608206749,
-0.03824283182621002,
0.035187169909477234,
0.08262678235769272,
-0.017658395692706108,
0.04695255309343338,
0.013104313984513283,
0.11020511388778687,
0.003362779738381505,
-0.07218050956726074,
-0.09714628756046295,
0.07628266513347626,
0.006812025792896748,
-0.004217968787997961,
-0.015067112632095814,
-0.011814510449767113,
-0.026233961805701256,
0.02608674205839634,
0.013415020890533924,
0.03921836242079735,
-0.0413973443210125,
0.05521591380238533,
0.025234339758753777,
0.019703280180692673,
0.04183413088321686,
-0.03572230413556099,
-0.001652426552027464,
-0.025645148009061813,
0.040213532745838165,
0.0998699888586998,
-0.00019109901040792465,
0.07234478741884232,
-0.076214998960495,
0.012510471977293491,
0.05519619956612587,
-0.0042993538081645966,
-0.02270052395761013,
-0.03605811670422554,
0.004364197142422199,
-0.02622431144118309,
0.10095872730016708,
0.03194442391395569,
0.09922776371240616,
0.07132985442876816,
0.03818817809224129,
-0.015938594937324524,
-0.015392578206956387,
0.03156932070851326,
-0.03209685534238815,
0.03188854455947876,
-0.03218701854348183,
0.04575159400701523,
0.023397982120513916,
0.0073441071435809135,
0.028798457235097885,
-0.024190692231059074,
0.08198519051074982,
-0.0015520089073106647,
-0.06961990147829056,
0.03324076533317566,
0.019002456218004227,
-0.12440423667430878,
0.049372922629117966,
0.07684329897165298,
-0.012360770255327225,
0.023615779355168343,
-0.05356048792600632,
0.027514778077602386,
-0.015931224450469017,
0.051486674696207047,
0.038024961948394775,
-0.07217993587255478,
-0.04613037779927254,
0.009425078518688679,
-0.0021516697015613317,
-0.010705631226301193,
0.04628187045454979,
-0.004852305166423321,
-0.0054763988591730595,
-0.025381652638316154,
4.5208249076198044e-33,
0.025310538709163666,
0.0563710555434227,
-0.06469113379716873,
-0.0654006227850914,
-0.04351300001144409,
0.0006968996021896601,
0.0036813931073993444,
0.09603618830442429,
-0.027886494994163513,
0.004272173158824444,
-0.04951106756925583,
0.054659806191921234,
0.03437495604157448,
-0.06392771750688553,
-0.009770705364644527,
-0.05381111800670624,
0.05417494475841522,
0.06156138330698013,
-0.0988221988081932,
0.03068046271800995,
-0.034547556191682816,
-0.08200785517692566,
-0.03172566369175911,
-0.03672095015645027,
-0.01716247946023941,
0.07759877294301987,
-0.0012727587018162012,
-0.04325257986783981,
-0.0126795107498765,
0.016322165727615356,
-0.047826074063777924,
0.007854973897337914,
0.041245732456445694,
0.09552788734436035,
-0.01944681443274021,
0.001244999933987856,
-0.026055222377181053,
-0.011933455243706703,
-0.018541689962148666,
-0.030797353014349937,
0.00784720852971077,
0.08946479111909866,
-0.023240556940436363,
0.011777455918490887,
0.039406727999448776,
0.024983009323477745,
0.011217238381505013,
-0.05841562896966934,
0.0006647574482485652,
-0.03472064435482025,
-0.014140669256448746,
-0.01675592176616192,
-0.12493149936199188,
-0.06015952676534653,
0.07201727479696274,
0.09456995874643326,
0.015330915339291096,
-0.06008767709136009,
-0.006524958647787571,
0.08405176550149918,
0.04149213805794716,
0.023386910557746887,
-0.013804693706333637,
-0.00154481315985322,
-0.0063177673146128654,
0.07965245842933655,
-0.03614354133605957,
-0.05594949424266815,
-0.09772346913814545,
0.014579025097191334,
-0.05977441743016243,
-0.029906384646892548,
0.07508037984371185,
-0.09355233609676361,
0.06678430736064911,
-0.020380709320306778,
0.017403684556484222,
0.05866088345646858,
-0.01673995889723301,
0.010485436767339706,
-0.05558433756232262,
-0.06935667246580124,
0.07018090784549713,
-0.0028161313384771347,
-0.014079098589718342,
0.03197111561894417,
-0.034906987100839615,
0.05895302817225456,
-0.06516468524932861,
0.032643407583236694,
0.053341906517744064,
-0.10337086021900177,
-0.0066650863736867905,
-0.008693722076714039,
-0.1253986805677414,
-3.872806096080171e-33,
-0.0003551231638994068,
0.015874970704317093,
-0.06898750364780426,
0.025397606194019318,
-0.014756843447685242,
0.023642349988222122,
0.01035403460264206,
0.06774135679006577,
-0.026832427829504013,
-0.0727609172463417,
0.0074714780785143375,
0.058491382747888565,
-0.07549258321523666,
-0.08232488483190536,
0.007204579189419746,
0.01182811800390482,
0.05748157948255539,
0.012663308531045914,
-0.10369887202978134,
0.002436684211716056,
0.03185828775167465,
0.0016346743796020746,
-0.028133263811469078,
-0.01335685234516859,
-0.0312851257622242,
0.055040087550878525,
0.07558485120534897,
0.022117359563708305,
-0.01537703163921833,
-0.013875298202037811,
-0.10932257026433945,
0.014484603889286518,
-0.007556632626801729,
-0.03834543377161026,
0.013545549474656582,
-0.015660418197512627,
0.06056562811136246,
0.015530738048255444,
-0.08752193301916122,
-0.00846397876739502,
0.01984831504523754,
0.1736966073513031,
-0.0538191944360733,
0.04888388514518738,
0.017640048637986183,
0.09784604609012604,
0.013733930885791779,
0.04378744959831238,
0.06191232055425644,
-0.007416249252855778,
-0.010215713642537594,
-0.07743097096681595,
-0.020323658362030983,
0.08254898339509964,
-0.08719874918460846,
0.03966403752565384,
0.026028117164969444,
0.036066435277462006,
-0.023091772571206093,
0.0038573318161070347,
0.008565354160964489,
-0.06329163908958435,
0.02364302985370159,
-0.06342249363660812,
0.0066117215901613235,
-0.060267847031354904,
0.06963787227869034,
0.0671381950378418,
-0.015759311616420746,
-0.0038304270710796118,
0.0731387734413147,
-0.06384368240833282,
-0.06986420601606369,
-0.039725083857774734,
-0.011672137305140495,
0.026552176102995872,
-0.032075610011816025,
-0.10130757838487625,
0.013309191912412643,
-0.00671976525336504,
-0.04181096702814102,
0.12543150782585144,
-0.005296516697853804,
0.024146081879734993,
0.12993662059307098,
0.03520544245839119,
-0.0024515800178050995,
0.00022570118017029017,
0.022411268204450607,
-0.03748951107263565,
-0.09975223243236542,
-0.02982349693775177,
-0.05327272415161133,
-0.011030458845198154,
0.0414772592484951,
-5.3693632651174994e-8,
0.007006219122558832,
0.1108049601316452,
-0.08809176832437515,
0.03747446835041046,
0.06760606914758682,
-0.04726186767220497,
-0.02995208092033863,
0.029616568237543106,
0.038426343351602554,
0.034076761454343796,
0.056022144854068756,
-0.005972061771899462,
0.020735451951622963,
-0.08553667366504669,
0.02750627137720585,
0.001483646221458912,
0.016175003722310066,
-0.05362121760845184,
-0.051407791674137115,
0.004804943222552538,
0.06203291192650795,
-0.003122969763353467,
0.04295874759554863,
-0.044945064932107925,
-0.0012433839729055762,
0.006623358931392431,
0.03507884964346886,
0.06964067369699478,
0.04898274689912796,
-0.0878424122929573,
-0.07698068767786026,
0.0023301003966480494,
-0.018273208290338516,
0.0069971028715372086,
-0.010905035771429539,
0.05600997433066368,
-0.035227399319410324,
-0.01096447091549635,
0.11842197179794312,
0.10997559130191803,
-0.0563238188624382,
-0.04799786955118179,
0.008967331610620022,
0.047741491347551346,
-0.0822601467370987,
0.06624157726764679,
-0.020297668874263763,
-0.05439169704914093,
0.023791583254933357,
-0.00696911197155714,
0.028669599443674088,
-0.019021155312657356,
-0.03922697901725769,
-0.057391390204429626,
-0.04855792224407196,
0.019872145727276802,
0.007050526328384876,
-0.07440359145402908,
-0.022893870249390602,
0.00880456157028675,
0.07006791234016418,
-0.10002440214157104,
-0.124152272939682,
0.01802341639995575
] | 14,376 |
14,379 |
ASASSN-21ay: Discovery of an RGB Star Undergoing an Unusual, Long-Term Variation
|
Z. Way, D. Desai, K. Z. Stanek, C. S. Kochanek, T. Jayasinghe, T. A. Thompson (OSU), B. J. Shappee (Univ. of Hawaii), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU), M. Stritzinger (Aarhus)
|
During the ongoing All-Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014, Kochanek et al. 2017), using data from the quadruple 14-cm ``Brutus'', ``Cassius'', ``Payne-Gaposchkin'', ``Leavitt'', and ``Paczynski'' telescopes, we identified a stellar source undergoing an unusual, long-term dimming event. The source ASASSN-21ay (Gaia DR2: RA=16 50 33.71, DEC=+31 24 59.1, source_id=1313137361141189760, d=1600 pc, L=25.6 L_Sun, T_eff=4940 K) was first observed by ASAS-SN on UT 2013-12-31 at V~12.8 mag. Presently, ASASSN-21ay has ~2450 epochs of ASAS-SN data.
The ASAS-SN light curve shows the source slowly rising, reaching a broad peak of V~12.6 and g~13.0 mag in September 2018. Since then, ASASSN-21ay has steadily faded to g~13.6 on UT 2021-02-05. There are no matches in Vizier or the AAVSO catalogs to a known variable star. The star also showed long-term variability in the CRTS V-band data (Drake et al. 2009, ApJ, 696, 870) where it was initially observed at V~12.6 mag on UT 2005-7-6. It then brightened to have a broad peak in August 2009 and then returned to its original brightness by the time of the final CRTS epoch on UT 2013-10-22. The overall amplitude of ~0.15 mag was significantly smaller than the ~0.6 mag amplitude of the more recent changes.
The ASAS-SN data also show short term variations. After fitting and subtracting a quadratic polynomial to remove the long term trends, there is a strong signal at P~46 days in both the V and g-band data. We see no 46 day period in the CRTS data using the same procedure.
Follow-up observations of this unusual object are strongly encouraged.
We thank Las Cumbres Observatory and its staff for their continued support of ASAS-SN. ASAS-SN is funded in part by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, NSF grants AST-1515927 and AST-1908570, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics (CCAPP) at OSU, and the Chinese Academy of Sciences South America Center for Astronomy (CASSACA).
|
2021-02-09 03:50:00
|
optical,star,supernovae,the sun,variables
|
2021-02-09
|
03:50:00
| 2,060 |
[
-0.05301442742347717,
-0.006267590913921595,
0.044543493539094925,
0.08881905674934387,
0.03755226358771324,
-0.06182239204645157,
-0.04306137561798096,
-0.011239767074584961,
0.05107561871409416,
0.0015676936600357294,
-0.028912469744682312,
-0.0657026395201683,
-0.004342599771916866,
-0.061122018843889236,
0.012549398466944695,
-0.008785214275121689,
-0.019155023619532585,
-0.13129013776779175,
-0.01580413430929184,
0.031554970890283585,
-0.016012709587812424,
0.040491774678230286,
-0.07023978978395462,
0.030432062223553658,
0.09682956337928772,
-0.014067145995795727,
-0.028860893100500107,
-0.03357449546456337,
0.06200684607028961,
-0.025379518046975136,
-0.004083510022610426,
0.13297809660434723,
-0.07171501219272614,
0.09050983935594559,
0.028651008382439613,
-0.0203334279358387,
-0.003295812290161848,
0.016219856217503548,
-0.018544821068644524,
0.02174055390059948,
0.07588715851306915,
-0.06734106689691544,
0.0071797301061451435,
-0.00497519550845027,
-0.04279015585780144,
0.011932582594454288,
-0.09741859138011932,
-0.047893717885017395,
-0.05186633765697479,
0.03814375773072243,
-0.08027765899896622,
-0.03385160490870476,
0.017862845212221146,
0.014725442975759506,
0.08544445037841797,
0.02061975933611393,
-0.03818042203783989,
-0.07941829413175583,
0.11348789185285568,
0.011860456317663193,
0.0040095215663313866,
0.022324848920106888,
-0.051223814487457275,
-0.037695299834012985,
0.024632733315229416,
0.06774558871984482,
-0.04148659110069275,
-0.020312493667006493,
-0.003995535895228386,
-0.0021168943494558334,
0.02077551931142807,
0.021853838115930557,
-0.078217513859272,
0.006521459668874741,
-0.0068764290772378445,
0.048036202788352966,
0.06997567415237427,
-0.0003658435307443142,
0.08449070900678635,
-0.1086076870560646,
0.07452402263879776,
0.02107098326086998,
0.024546319618821144,
-0.02304239571094513,
0.02005470171570778,
-0.05308135598897934,
0.0057089016772806644,
0.040674321353435516,
0.03513237461447716,
0.02174673043191433,
0.003340488765388727,
-0.048171963542699814,
-0.07645272463560104,
-0.011088966391980648,
0.02015138790011406,
0.040979206562042236,
0.01690101809799671,
-0.03732882812619209,
0.09719308465719223,
0.05366858094930649,
0.01785668544471264,
0.007282441947609186,
-0.045447368174791336,
0.08020240068435669,
-0.005500790197402239,
0.061139125376939774,
0.050105441361665726,
0.031384583562612534,
-0.03392891213297844,
0.039147619158029556,
0.07565472275018692,
0.0010876678861677647,
-0.008135925978422165,
-0.09517423808574677,
0.004867872688919306,
0.07169020920991898,
-0.03237023949623108,
0.07993625849485397,
-0.10653942823410034,
-0.04537467285990715,
-0.014042198657989502,
0.07959091663360596,
0.03483561798930168,
0.046745266765356064,
0.009304429404437542,
0.05171526223421097,
-0.06877404451370239,
3.462706973804984e-33,
0.10816797614097595,
0.017025789245963097,
-0.018344009295105934,
-0.0071030305698513985,
-0.000015471785445697606,
0.013153396546840668,
-0.09134518355131149,
0.09987611323595047,
-0.003607305930927396,
-0.05652759596705437,
-0.06138402223587036,
-0.0037205656990408897,
0.02467622421681881,
-0.009997093118727207,
0.0014261244796216488,
-0.03538677096366882,
0.08398337662220001,
0.0571901798248291,
-0.11967165023088455,
-0.014693415723741055,
-0.051933128386735916,
-0.0035076583735644817,
-0.011368830688297749,
-0.03960144519805908,
-0.03293553367257118,
0.06065567582845688,
0.056941963732242584,
0.040521975606679916,
-0.01443546637892723,
0.027624089270830154,
0.01645669899880886,
0.010442422702908516,
0.03890609368681908,
0.039921894669532776,
-0.021802321076393127,
-0.06096368655562401,
-0.05783579498529434,
0.0030428930185735226,
-0.046696390956640244,
-0.0319359116256237,
0.007338009309023619,
0.07249508798122406,
-0.031137866899371147,
-0.005664809141308069,
-0.03126884996891022,
-0.016342710703611374,
0.02714451588690281,
0.00675799697637558,
-0.014716502279043198,
0.05873668193817139,
-0.03020494617521763,
0.00401001051068306,
-0.08582036197185516,
0.006584776099771261,
-0.001860024523921311,
0.07861239463090897,
-0.007314261049032211,
-0.06846419721841812,
0.02552478201687336,
0.042741212993860245,
0.05277794972062111,
-0.015276256948709488,
-0.05486198514699936,
0.05249597504734993,
-0.024612557142972946,
0.08907926827669144,
-0.020599592477083206,
0.03365468606352806,
-0.07920965552330017,
-0.019486192613840103,
0.02279628999531269,
0.05282260850071907,
0.09095975756645203,
-0.0629134476184845,
0.01620275340974331,
-0.06949269771575928,
0.04087414592504501,
0.06308023631572723,
-0.03874776512384415,
0.02831902913749218,
-0.03376896679401398,
-0.005641520489007235,
0.09203121066093445,
-0.07247256487607956,
-0.09788394719362259,
-0.04845396801829338,
-0.03736799955368042,
0.004671863745898008,
-0.07030089944601059,
-0.09972293674945831,
0.022204751148819923,
-0.022250914946198463,
0.06100568547844887,
-0.03556795045733452,
-0.1289813071489334,
-4.048183241067133e-33,
0.02884071134030819,
0.002424403326585889,
-0.001950981211848557,
-0.013272101990878582,
0.04485449567437172,
0.022217895835638046,
0.026180695742368698,
0.029588814824819565,
-0.0778595358133316,
-0.059383146464824677,
0.01209314726293087,
0.02721329778432846,
-0.024194277822971344,
-0.1625913679599762,
0.06046001613140106,
-0.04860376939177513,
0.058219440281391144,
0.01100790686905384,
-0.07589484751224518,
0.0013892535353079438,
0.057102955877780914,
-0.012732112780213356,
-0.06350444257259369,
-0.062297869473695755,
0.015888530761003494,
0.012832244858145714,
0.04278203845024109,
-0.005962582305073738,
-0.09765781462192535,
0.043535612523555756,
-0.07896751165390015,
0.037367142736911774,
-0.06985095888376236,
-0.0341067910194397,
-0.005869857966899872,
0.038733452558517456,
0.0350072868168354,
-0.012289722450077534,
-0.1288478821516037,
-0.004041554871946573,
-0.05607016012072563,
0.09794159978628159,
-0.028894728049635887,
0.029936622828245163,
0.028973402455449104,
0.030534639954566956,
-0.007598631549626589,
0.072285495698452,
0.029670050367712975,
-0.010981500148773193,
-0.010002520866692066,
-0.008561501279473305,
-0.03277386724948883,
0.09829112887382507,
-0.06915856897830963,
0.0780077874660492,
-0.026233531534671783,
0.06141633540391922,
0.01826002076268196,
-0.044687703251838684,
0.04408585652709007,
-0.06840077042579651,
0.0483587384223938,
-0.021647736430168152,
0.09322678297758102,
-0.014977285638451576,
0.04193747788667679,
0.03395598754286766,
-0.010985312983393669,
0.029121898114681244,
0.07624085247516632,
-0.062266044318675995,
-0.11903978139162064,
0.022680820897221565,
0.033448800444602966,
0.0320887565612793,
-0.015651503577828407,
-0.07042942941188812,
-0.016437986865639687,
0.0025307261385023594,
-0.035474348813295364,
-0.0151470135897398,
0.03723254054784775,
0.05163091421127319,
0.02393927425146103,
-0.02012411691248417,
0.02174682728946209,
-0.07000432908535004,
-0.04663240537047386,
0.022365514189004898,
-0.09434256702661514,
-0.02342246100306511,
-0.035744987428188324,
0.04588032141327858,
0.042750824242830276,
-6.234976979158091e-8,
0.04261400178074837,
0.02717340551316738,
-0.08930718153715134,
0.04042055085301399,
0.07053900510072708,
-0.07197227329015732,
-0.0291274581104517,
0.09850337356328964,
0.04850664734840393,
-0.005779470782727003,
-0.005487461108714342,
-0.043554455041885376,
0.004720304626971483,
-0.0857657715678215,
0.04879777505993843,
-0.05455613508820534,
-0.052876297384500504,
-0.026217952370643616,
-0.07057273387908936,
0.023689307272434235,
0.03917587548494339,
0.0638526901602745,
0.05840226262807846,
-0.05107330530881882,
-0.011010132730007172,
0.0017504419665783644,
0.03895979002118111,
0.09824185818433762,
-0.011023090220987797,
-0.08300996571779251,
-0.04518425837159157,
0.05355498194694519,
0.01485779695212841,
-0.07457201182842255,
-0.02778351493179798,
0.07740052044391632,
0.014206166379153728,
0.013653471134603024,
0.08441245555877686,
0.10687342286109924,
-0.054718468338251114,
0.013070930726826191,
-0.0026591457426548004,
0.029306024312973022,
0.006447788327932358,
0.04323151335120201,
0.020533598959445953,
-0.03535828739404678,
0.03400753438472748,
0.017211440950632095,
0.0035578731913119555,
-0.0018124444177374244,
-0.04770751670002937,
-0.03436778485774994,
-0.03387145325541496,
-0.03563356399536133,
-0.04733661189675331,
-0.05943293496966362,
0.002755081979557872,
0.01586342230439186,
0.10788527876138687,
-0.06434983760118484,
-0.07570838183164597,
0.0318780280649662
] | 14,377 |
14,380 |
A new ultraluminous X-ray source in NGC 4945
|
Murray Brightman (Caltech)
|
We report on the detection of a new X-ray source serendipitously discovered in a Swift/XRT observation of NGC4945X-1 (obsID 00013908005) on 2021-02-08. The source has a position of RA=196.23359, Dec=-49.53283 (=13:04:56.06s, -49:31:58.2), with an error radius of 3.1''(90% confidence) and a 0.3--10 keV count rate of 0.017+/-0.004 cts/s. The new source is >3' from the target, and no X-ray source has been reported at or near this position before despite numerous previous Swift, Chandra, XMM-Newton, and NuSTAR observations. The source appears to be associated with NGC 4945.
The XRT spectrum is not well constrained, nevertheless it can be described by an absorbed power-law model with NH<2x10^22 cm^-2 and Gamma=1.9^+2.3_-1.1. The observed 0.3--10 keV flux is 9.4x10^-13 erg/cm^2/s, which corresponds to a luminosity of 1.5x10^39 erg/s assuming a distance of 3.7 Mpc to NGC 4945. The source is therefore likely a new ultraluminous X-ray source. Previous to this detection, NGC 4945 was observed with Swift on 2021-01-25 when the source was not detected, therefore this new ULX only became active in the last 2 weeks. Further monitoring with Swift is recommended, as well as deeper follow up with other X-ray telescopes.
|
2021-02-09 06:25:00
|
x-ray,black hole,neutron star,star,transient,request for observations
|
2021-02-09
|
06:25:00
| 1,223 |
[
-0.06637345999479294,
-0.04457888379693031,
-0.00858374871313572,
0.05038844048976898,
0.1267220377922058,
-0.08316104859113693,
0.021654335781931877,
0.005835686810314655,
-0.0029846474062651396,
0.03160156309604645,
0.02129087783396244,
-0.029302073642611504,
0.03940127044916153,
-0.0004859436594415456,
-0.0026453558821231127,
-0.01348938699811697,
0.014494751580059528,
-0.10310064256191254,
-0.021314134821295738,
0.0873289406299591,
0.01680891215801239,
0.12225595861673355,
0.003278519958257675,
0.006453835405409336,
0.06353278458118439,
-0.047190576791763306,
0.026977593079209328,
-0.10738150775432587,
0.02856619283556938,
-0.04182262346148491,
0.033997632563114166,
0.03751543164253235,
-0.058425866067409515,
0.044450562447309494,
-0.026205863803625107,
0.03521199896931648,
0.04678778722882271,
-0.009882394224405289,
-0.027426254004240036,
-0.014636040665209293,
0.03093625232577324,
-0.0674922838807106,
0.00953073799610138,
-0.029166825115680695,
-0.0810597762465477,
-0.015082242898643017,
-0.006805025972425938,
-0.06374600529670715,
-0.037824973464012146,
0.03967858850955963,
-0.014782987534999847,
-0.031191283836960793,
-0.048631176352500916,
0.030642032623291016,
0.10626117885112762,
-0.04154442623257637,
-0.030124086886644363,
-0.12250915169715881,
0.06195848062634468,
-0.020973246544599533,
0.046012744307518005,
0.044011928141117096,
0.004690385423600674,
-0.030796954408288002,
0.07540392875671387,
0.02046709693968296,
-0.026043275371193886,
-0.07750146090984344,
-0.018568240106105804,
-0.02639908716082573,
0.027424555271863937,
-0.01398799940943718,
0.03671743720769882,
-0.09021256864070892,
-0.02055354230105877,
0.05564189702272415,
0.10426037758588791,
-0.019563861191272736,
0.062202513217926025,
-0.05254112556576729,
-0.015117166563868523,
0.05494450032711029,
-0.01116167102009058,
0.011969497427344322,
-0.006378971040248871,
0.002973414259031415,
-0.029953116551041603,
0.10260703414678574,
0.012420018203556538,
0.004085666034370661,
0.020571552217006683,
0.0416712611913681,
-0.04922018200159073,
0.02973821386694908,
0.06061532720923424,
-0.00877415668219328,
0.06291887164115906,
0.025624291971325874,
0.0024428905453532934,
0.04753539711236954,
0.022640489041805267,
0.03934892266988754,
-0.03867523744702339,
0.07576752454042435,
-0.08105620741844177,
-0.030011961236596107,
0.032295290380716324,
0.056321363896131516,
-0.08557237684726715,
0.0015752381877973676,
0.096256785094738,
-0.028473975136876106,
-0.07115036249160767,
-0.07937349379062653,
-0.003975380212068558,
-0.015330511145293713,
-0.022968938574194908,
0.06153633072972298,
-0.12659354507923126,
-0.05882813036441803,
-0.035689257085323334,
-0.01652233488857746,
0.02448044903576374,
0.04315202683210373,
0.009296935051679611,
0.014282840304076672,
-0.07280616462230682,
3.694032507103302e-33,
-0.005670654587447643,
0.07383359968662262,
-0.06688988953828812,
-0.017760703340172768,
0.00502240052446723,
-0.0326676145195961,
0.02263796515762806,
0.10339444875717163,
-0.024770589545369148,
0.028647979721426964,
-0.03374464064836502,
0.03669244796037674,
0.014843438751995564,
-0.04151126369833946,
-0.05843862146139145,
-0.01814371719956398,
0.03972424194216728,
0.039651766419410706,
-0.1261279135942459,
0.027611425146460533,
0.006623138207942247,
-0.010507446713745594,
-0.05340779945254326,
-0.01601899415254593,
-0.005575923249125481,
0.05624394491314888,
-0.041725851595401764,
-0.04270058870315552,
-0.01798604242503643,
0.026024041697382927,
-0.04348153993487358,
0.023574113845825195,
0.04909997060894966,
0.08880355209112167,
-0.014191314578056335,
0.011453385464847088,
-0.019528765231370926,
0.0060198246501386166,
-0.044713880866765976,
-0.01598101109266281,
0.0017855636542662978,
0.06381222605705261,
-0.016941290348768234,
-0.037808965891599655,
0.02416587434709072,
0.03744581341743469,
-0.008261032402515411,
-0.05214867740869522,
0.006784379947930574,
-0.009861321188509464,
-0.013640951365232468,
-0.001593804801814258,
-0.06782840937376022,
-0.008400608785450459,
0.05057723820209503,
-0.014542669989168644,
-0.03714318200945854,
0.015507441945374012,
0.01977500133216381,
0.057165127247571945,
0.031028926372528076,
-0.012309923768043518,
0.01787753403186798,
0.05216611921787262,
-0.014986727386713028,
0.06353423744440079,
-0.022524463012814522,
-0.0685497298836708,
0.029870884492993355,
0.04091474041342735,
-0.08854931592941284,
0.041687868535518646,
0.05859978124499321,
-0.03842204809188843,
0.11309890449047089,
-0.06043657660484314,
0.01570296473801136,
0.08008171617984772,
0.007093275431543589,
0.021456271409988403,
0.0012450619833543897,
-0.03386096656322479,
0.05312814190983772,
-0.025840209797024727,
-0.048695098608732224,
0.013340527191758156,
-0.06794703751802444,
-0.00795702077448368,
-0.03709486126899719,
-0.003746498143300414,
0.042615100741386414,
-0.045238327234983444,
-0.028660720214247704,
-0.0436745248734951,
-0.07087313383817673,
-3.550872723536502e-33,
-0.0008103948784992099,
-0.007940873503684998,
-0.012573148123919964,
0.037496600300073624,
-0.048355553299188614,
0.017558839172124863,
-0.009182102978229523,
0.03521978482604027,
-0.03941051661968231,
-0.022911187261343002,
0.08021541684865952,
0.07428645342588425,
-0.03617236763238907,
-0.026747046038508415,
0.02638385258615017,
0.014140757732093334,
0.08424743264913559,
-0.02094198949635029,
-0.10728582739830017,
-0.0016109244897961617,
0.06777305155992508,
0.058304958045482635,
0.018281782045960426,
-0.10119501501321793,
-0.0033972910605371,
0.09326652437448502,
0.0797610878944397,
-0.010193395428359509,
0.035254329442977905,
-0.06619314104318619,
-0.15074338018894196,
0.027246257290244102,
-0.03111630491912365,
0.007798988837748766,
-0.01686882972717285,
-0.005466877017170191,
0.06357607990503311,
0.0520862340927124,
-0.0930958092212677,
0.015863729640841484,
0.020232776179909706,
0.17659859359264374,
0.009674989618360996,
0.036254893988370895,
-0.05963359773159027,
0.027518674731254578,
0.06197080388665199,
0.06916315853595734,
0.0662064328789711,
-0.02953806146979332,
0.07808198779821396,
-0.06178153306245804,
0.010535447858273983,
0.11214355379343033,
-0.06377824395895004,
0.06487248837947845,
0.033822331577539444,
0.05428492650389671,
0.03514095023274422,
-0.021966245025396347,
-0.003991988953202963,
0.03020814061164856,
0.021859241649508476,
-0.04973267763853073,
0.046604957431554794,
-0.03783133998513222,
-0.006954526528716087,
0.057568248361349106,
0.03346726670861244,
-0.007628068793565035,
0.00851118192076683,
-0.1004989743232727,
-0.04646333307027817,
-0.03598140925168991,
-0.02010571025311947,
0.10558241605758667,
0.004959295503795147,
-0.14066918194293976,
0.003145288210362196,
-0.03357251361012459,
0.013892746530473232,
0.0332348607480526,
0.04194292798638344,
-0.004699407611042261,
0.100985087454319,
0.04442588612437248,
0.05592061206698418,
0.005972153041511774,
-0.017717955633997917,
-0.07874007523059845,
-0.10252033919095993,
0.011175968684256077,
-0.035287875682115555,
0.00616414612159133,
0.08418412506580353,
-5.7603632086511425e-8,
-0.09400487691164017,
0.07617001980543137,
-0.08456844091415405,
0.009740769863128662,
0.08121856302022934,
0.03679627925157547,
-0.03126610070466995,
-0.024380717426538467,
0.0811479389667511,
0.03374514356255531,
0.0488484762609005,
-0.043939296156167984,
-0.0015645958483219147,
-0.043472155928611755,
0.017710378393530846,
-0.08323169499635696,
-0.058093804866075516,
-0.08335907757282257,
-0.03721597418189049,
-0.01785016432404518,
-0.016420545056462288,
-0.04337093606591225,
0.06776940822601318,
-0.05403595790266991,
0.004351830575615168,
-0.02048458531498909,
0.015034155920147896,
0.030946021899580956,
0.0623139850795269,
-0.006050549913197756,
-0.1462612748146057,
0.039572034031152725,
-0.037626542150974274,
0.001602562959305942,
-0.02879144810140133,
0.04267372563481331,
-0.011843057349324226,
-0.018927879631519318,
0.089146189391613,
0.07574217021465302,
-0.015960676595568657,
-0.04235295578837395,
0.022507334128022194,
0.057457469403743744,
-0.08178761601448059,
0.04259248077869415,
0.02666502445936203,
-0.10591083765029907,
0.0007157085929065943,
-0.004424589686095715,
-0.0010550097795203328,
-0.003238718956708908,
-0.02515009045600891,
-0.10077165812253952,
-0.07746229320764542,
-0.0011876465287059546,
-0.004696312826126814,
-0.046956099569797516,
-0.034130748361349106,
0.013471520505845547,
0.06805990636348724,
-0.061783190816640854,
-0.046362847089767456,
-0.018464479595422745
] | 14,378 |
14,381 |
Erratum to ATel #14366: Discovery of 8 ASAS-SN Supernova Candidates
|
P. Vallely and K. Z. Stanek (Ohio State) for the ASAS-SN Team
|
In ATel #14366 we have inaccurately reported the location of ASASSN-20qk (SN 2020adox). We mistakenly duplicated the coordinates of ASASSN-20qj (SN 2020adow) instead of providing those of ASASSN-20qk. We apologize for any confusion this may have caused and include the corrected information below.
|
2021-02-10 04:15:00
|
optical,supernovae,transient
|
2021-02-10
|
04:15:00
| 297 |
[
-0.14432986080646515,
-0.0019048751564696431,
0.060028135776519775,
0.04807746037840843,
0.04843275249004364,
0.04725291579961777,
-0.04532559961080551,
-0.03933950886130333,
-0.00043012178502976894,
-0.042160727083683014,
0.005375138018280268,
-0.0017782680224627256,
-0.019438667222857475,
-0.025647319853305817,
-0.09292607754468918,
0.013907834887504578,
-0.016560813412070274,
-0.0589657798409462,
0.02679857425391674,
0.02083607204258442,
0.07988660782575607,
-0.01783357746899128,
0.03288431465625763,
0.04523448646068573,
0.08060289174318314,
-0.03668515384197235,
-0.015357532538473606,
0.02207733318209648,
0.019907565787434578,
-0.04925353452563286,
0.056254249066114426,
0.0479728989303112,
-0.01306323241442442,
0.004976634401828051,
0.03589340299367905,
-0.01929399184882641,
-0.0012889232020825148,
-0.004596190061420202,
0.0034979351330548525,
-0.018111983314156532,
0.08891801536083221,
-0.03547219559550285,
0.06136780604720116,
0.009857465513050556,
0.0023099526297301054,
-0.016950486227869987,
-0.0665610060095787,
-0.05441572517156601,
0.06283026188611984,
0.04357798770070076,
-0.02118503488600254,
-0.11630687862634659,
-0.0099657466635108,
-0.037418365478515625,
0.07136114686727524,
0.11369054764509201,
-0.043924711644649506,
-0.061443716287612915,
0.0356934517621994,
0.006083483342081308,
0.11460132151842117,
-0.022130515426397324,
-0.028698155656456947,
-0.011248857714235783,
0.0664062574505806,
0.09307237714529037,
-0.03885940462350845,
-0.0543711893260479,
-0.03585245832800865,
-0.02174842171370983,
0.0898345410823822,
0.0116488141939044,
-0.06596383452415466,
0.09042032063007355,
-0.011727062985301018,
0.0708436369895935,
0.06768932938575745,
0.05158155784010887,
0.046461403369903564,
-0.08609820902347565,
0.0065591405145823956,
-0.07207684963941574,
0.01620125211775303,
-0.03800102323293686,
-0.0379527285695076,
-0.006894330959767103,
-0.09382358193397522,
-0.0034162704832851887,
0.11481305956840515,
-0.025441689416766167,
-0.011948075145483017,
-0.08034929633140564,
0.0037714054342359304,
-0.04999291151762009,
0.06129763275384903,
0.07663507014513016,
0.012058056890964508,
0.0711139366030693,
-0.004043338820338249,
0.03857403248548508,
0.05315885320305824,
0.09783214330673218,
-0.08177794516086578,
0.025791559368371964,
-0.021520307287573814,
0.0636667013168335,
0.008475445210933685,
-0.027309950441122055,
-0.03647225722670555,
0.04574485495686531,
0.06924177706241608,
-0.013311134651303291,
0.022802680730819702,
-0.03710425645112991,
0.020383626222610474,
-0.008367408998310566,
-0.06758043169975281,
0.08264792710542679,
-0.025339970365166664,
-0.0366874560713768,
-0.09306275099515915,
-0.024646881967782974,
-0.01339409314095974,
0.10431914776563644,
0.033811699599027634,
0.0467408187687397,
-0.07162118703126907,
5.1410554000479835e-33,
0.05099479481577873,
0.03807452693581581,
0.007905147969722748,
0.027483049780130386,
0.024041391909122467,
-0.07947180420160294,
0.04886888340115547,
-0.009517118334770203,
-0.018433619290590286,
-0.05040057748556137,
-0.08351943641901016,
-0.026426319032907486,
-0.0024136286228895187,
-0.0637749657034874,
-0.05111299082636833,
-0.08758718520402908,
0.03771933913230896,
-0.02246871404349804,
-0.09328314661979675,
0.03211941570043564,
-0.03975570201873779,
0.005951134487986565,
-0.040494564920663834,
-0.07757369428873062,
-0.04423414543271065,
0.019348498433828354,
-0.0021825931034982204,
0.0384308286011219,
0.02084793895483017,
0.03500748798251152,
0.0000613926604273729,
-0.06332134455442429,
-0.03296252340078354,
0.05030357837677002,
-0.0026543440762907267,
-0.050967685878276825,
0.02327307127416134,
0.0025746135506778955,
-0.022458015009760857,
-0.01675228774547577,
0.11537721753120422,
0.09085792303085327,
-0.07348022609949112,
0.07979890704154968,
0.009842174127697945,
-0.023206789046525955,
-0.0010290094651281834,
0.061401139944791794,
0.13225574791431427,
-0.010853813029825687,
-0.09498818218708038,
0.04016704484820366,
-0.0783115029335022,
-0.05235309526324272,
0.029883326962590218,
-0.013214323669672012,
0.01607968471944332,
-0.010660097934305668,
0.03167344257235527,
0.048014331609010696,
0.06285828351974487,
0.02823551557958126,
-0.010831929743289948,
0.006999888923019171,
-0.03558804467320442,
0.013052569702267647,
0.023128923028707504,
-0.015445190481841564,
0.03361346945166588,
-0.04492154344916344,
0.030094416812062263,
0.0677621141076088,
0.09609579294919968,
0.07384438812732697,
0.016458313912153244,
-0.06800573319196701,
0.014641291461884975,
0.05396830663084984,
0.016239671036601067,
0.03245057165622711,
-0.053327977657318115,
-0.01486888900399208,
-0.005618457216769457,
0.026629285886883736,
-0.05920764058828354,
-0.07075861841440201,
-0.005239797756075859,
0.0006190435960888863,
-0.003939445596188307,
0.006213690619915724,
0.007179249078035355,
-0.05214040353894234,
0.008491752669215202,
0.014618279412388802,
-0.1271648406982422,
-5.134539487924582e-33,
-0.018780888989567757,
-0.014952356927096844,
-0.01782948523759842,
-0.03923754766583443,
-0.08574000000953674,
0.02519902028143406,
0.046145353466272354,
0.042647622525691986,
-0.07794708013534546,
-0.009446116164326668,
0.06811102479696274,
0.04738784208893776,
0.04564998298883438,
-0.160544753074646,
0.01702701300382614,
-0.000054646050557494164,
0.048372142016887665,
0.05406561121344566,
-0.04033122956752777,
-0.03701336681842804,
0.015892574563622475,
0.00232447381131351,
-0.06962407380342484,
0.054568056017160416,
0.06110510975122452,
0.031836990267038345,
0.09117605537176132,
0.0014378185151144862,
-0.07332275062799454,
0.046319589018821716,
-0.002588766859844327,
-0.06448068469762802,
-0.06498618423938751,
0.01592331752181053,
-0.062485188245773315,
0.007335179951041937,
0.05818401649594307,
0.023446233943104744,
-0.09495741128921509,
-0.04959190636873245,
-0.009537884034216404,
0.044214989989995956,
-0.0666697695851326,
0.07091859728097916,
0.0027094888500869274,
0.08163674920797348,
-0.019221728667616844,
0.05479985103011131,
0.024731718003749847,
-0.05077902972698212,
0.02554127760231495,
-0.038884978741407394,
-0.01836361549794674,
0.06863822042942047,
-0.04442840442061424,
0.09435512125492096,
-0.0003723497793544084,
0.06736587733030319,
0.03430270031094551,
-0.04949067533016205,
0.0334816500544548,
-0.07088251411914825,
0.03558209165930748,
-0.031950224190950394,
0.03828923776745796,
0.011416428722441196,
-0.014415943995118141,
0.0283114742487669,
-0.052211470901966095,
-0.008513382636010647,
-0.017424311488866806,
-0.043034669011831284,
-0.07053729146718979,
-0.008644656278192997,
0.02316044084727764,
0.05719619616866112,
0.026768231764435768,
0.001149513991549611,
-0.031338974833488464,
-0.0909828469157219,
-0.05467226728796959,
0.012533225119113922,
-0.06633943319320679,
-0.003949211910367012,
0.05029020458459854,
0.09274937212467194,
0.09934215992689133,
-0.018814411014318466,
-0.022016843780875206,
0.006552537903189659,
-0.07572797685861588,
-0.021606320515275,
-0.08517304062843323,
-0.0029282700270414352,
-0.006807392463088036,
-4.6116138463503376e-8,
0.009590393863618374,
0.04783337190747261,
-0.058758024126291275,
0.012352964840829372,
-0.005762257147580385,
-0.04135271906852722,
-0.023347923532128334,
0.039431676268577576,
0.035859379917383194,
0.008159629069268703,
-0.05162680894136429,
-0.058541297912597656,
-0.00833873264491558,
-0.0207678135484457,
0.047205496579408646,
-0.08203316479921341,
-0.0503636971116066,
0.09785979241132736,
-0.05805709585547447,
-0.05105217173695564,
0.023400776088237762,
0.06448264420032501,
0.06814984977245331,
-0.06328365951776505,
0.010089210234582424,
0.006153716705739498,
-0.002778104040771723,
0.1174420565366745,
0.04204219579696655,
-0.06383544206619263,
-0.023050343617796898,
-0.03337584063410759,
-0.025115735828876495,
-0.014986779540777206,
0.020844189450144768,
0.03239656612277031,
-0.046296726912260056,
-0.007910802029073238,
0.04618490859866142,
0.027098581194877625,
-0.07315140217542648,
-0.07617650926113129,
0.02445652335882187,
0.09437476843595505,
0.01826038397848606,
-0.006751286797225475,
0.06793605536222458,
-0.03077976405620575,
0.007559748832136393,
-0.04288473725318909,
-0.0167026836425066,
-0.07564080506563187,
-0.06043275445699692,
-0.046565040946006775,
-0.024240214377641678,
0.007403596304357052,
-0.014003374613821507,
-0.10427609086036682,
0.012637305073440075,
0.06033444032073021,
0.08589500933885574,
-0.01747080869972706,
-0.10720318555831909,
0.043764740228652954
] | 14,379 |
14,382 |
Upper limits on the radio fluence of the most recent X-ray bursts from SGR1935+2154
|
Franz Kirsten (Chalmers/OSO, Sweden), Jakob van den Eijnden (U. of Oxford, England), Mark Snelders (U. of Amsterdam, The Netherlands), Kenzie Nimmo (ASTRON, U. of Amsterdam, The Netherlands), Jason Hessels (ASTRON, U. of Amsterdam, The Netherlands), Marcin Gawronski (NCU, Torun, Poland), Jun Yang (Chalmers/OSO, Sweden), Roman Feiler (NCU, Torun, Poland)
|
All of Fermi GBM, Konus Wind, GECAM, and Swift-BAT reported several bright bursts during the recent X-ray activity of SGR1935+2154 (GCN circulars GCN #29363, #29365, #29373, #29374, #29388 and ATel #14359). We were observing the source at multiple radio frequencies during the following bursts: 29 Jan 2021 07:00:00.99 UTC (ATel #14359, GCN #29373) 29 Jan 2021 10:35:39.94 UTC (ATel #14359) 29 Jan 2021 15:23:29.92 UTC (ATel #14359) 02 Feb 2021 12:54:27.00 UTC (GCN #29388) During the three bursts on 29 Jan 2021 we observed with the Westerbork (Wb) single 25-m dish RT1 (P-band, 300.0-364.0 MHz) and the Onsala (O8) 25-m telescope (L-band, 1360-1488 MHz). On 2 Feb 2021 we observed also with the Torun 32-m telescope (C-band, 4550-4806 MHz) in addition to Wb and O8. We used a custom built pipeline to search the baseband recordings. This pipeline first creates channelised filterbank files (Stokes I) which are then searched for bursts with Heimdall (using the DM-range 332.7 +/- 50 pc/cm^3). Potential candidates are classified with FETCH (Agarwal et al. 2020). Neither the automated pipeline nor a manual search around -10/+30 seconds of the reported X-ray burst times lead to a detection. Thus we can constrain the fluence of any potential bursts coincident with the X-ray bursts to be lower than 78 Jy ms, 8 Jy ms and 3 Jy ms at P-, L-, and C-band, respectively (7-sigma detection threshold for the automated pipeline). We also performed a preliminary analysis of the overlapping Fermi/GBM bursts on 29 Jan 2021. We find that the spectral parameters, when fitting each burst with a double blackbody model, are consistent with typical X-ray bursts seen from SGR 1935+2154 (Lin et al. 2020). They are, on the contrary, not consistent with the spectrum seen during the anomalous, hard X-ray burst with contemporaneous radio burst emission (Mereghetti et al. 2020). The same holds for the spectral parameters reported for the 02 Feb 2021 Fermi/GBM bursts (GCN #29388). The fluences of all four X-ray bursts are similar to that of the anomalous, hard X-ray burst; if a contemporaneous radio burst of similar fluence (1.5 MJy ms; Bochenek et al. 2020) had occurred, it would have been detected given our sensitivity. We also observed the source during the following times 30 Jan 2021 0530-1245 UTC 31 Jan 2021 0530-1045 UTC 01 Feb 2021 0515-1345 UTC 02 Feb 2021 0430-1800 UTC 03 Feb 2021 0430-1800 UTC No radio bursts have been found as of yet. We will continue to monitor the source regularly.
|
2021-02-10 04:50:00
|
radio,x-ray,fast radio burst,magnetar,transient
|
2021-02-10
|
04:50:00
| 2,494 |
[
-0.054770514369010925,
-0.024737855419516563,
-0.04564909264445305,
0.053710922598838806,
0.11058059334754944,
-0.06091422960162163,
0.021258078515529633,
0.03153495863080025,
-0.01775312051177025,
-0.013814074918627739,
0.038591280579566956,
-0.027536790817975998,
-0.007134638726711273,
0.038215138018131256,
0.027116309851408005,
-0.04621483385562897,
-0.0184383075684309,
-0.14505934715270996,
-0.02958599664270878,
0.009876071475446224,
-0.05528298765420914,
0.06017458438873291,
0.010221286676824093,
0.00668518990278244,
0.05962443724274635,
-0.017982885241508484,
0.029018428176641464,
-0.09263242781162262,
0.013915399089455605,
0.01250053197145462,
0.09245669841766357,
0.10640724003314972,
-0.05674175173044205,
0.05771155655384064,
0.05337672680616379,
-0.03471831977367401,
0.028574660420417786,
0.023723801597952843,
0.021790355443954468,
-0.0565183199942112,
0.003418009728193283,
-0.0732496827840805,
0.05856733024120331,
-0.03912748768925667,
-0.08833082765340805,
0.023227283731102943,
-0.024998512119054794,
-0.07871044427156448,
-0.07453517615795135,
0.030961081385612488,
0.03292457014322281,
-0.042085498571395874,
0.04334472119808197,
0.009215166792273521,
0.09380090981721878,
-0.011063514277338982,
-0.1263761818408966,
-0.10173109918832779,
0.10022993385791779,
-0.027474697679281235,
0.017395833507180214,
-0.01597766950726509,
-0.036649830639362335,
-0.04608551412820816,
0.04482968896627426,
-0.0014729208778589964,
0.01371566392481327,
-0.049472298473119736,
0.06824027001857758,
-0.00038711813976988196,
0.09710153192281723,
0.04276501014828682,
-0.010720063000917435,
-0.03468187898397446,
-0.04698948934674263,
0.0675656646490097,
0.0942191630601883,
-0.015582721680402756,
0.048398345708847046,
-0.05139464512467384,
0.027722282335162163,
0.019222524017095566,
0.005798840895295143,
0.0013804682530462742,
0.06424693763256073,
0.01887095347046852,
0.03409580513834953,
0.07419043779373169,
-0.011373095214366913,
0.08583366125822067,
0.016787709668278694,
0.011400123126804829,
-0.02153504453599453,
0.040664296597242355,
-0.02556023560464382,
0.020333783701062202,
0.05679702013731003,
-0.02178811840713024,
0.04646753892302513,
0.01955880969762802,
0.061518315225839615,
0.0031439410522580147,
-0.0007216023514047265,
0.06668099761009216,
-0.04606527462601662,
-0.01568431966006756,
0.006550070829689503,
0.0700499638915062,
-0.02896934561431408,
0.03321939706802368,
0.05061626434326172,
0.06680090725421906,
0.020471515133976936,
-0.04424877464771271,
0.022396549582481384,
-0.014671758748590946,
-0.018196558579802513,
0.0630512535572052,
-0.06309608370065689,
0.0393514446914196,
-0.027917925268411636,
0.009586303494870663,
-0.06864019483327866,
0.040568962693214417,
0.04927760735154152,
0.04232846945524216,
-0.01993435062468052,
5.094775452772141e-33,
0.028774866834282875,
0.029536310583353043,
-0.04522274062037468,
-0.040112949907779694,
0.005849302746355534,
0.019902560859918594,
-0.08402634412050247,
0.09005425870418549,
-0.02522701770067215,
-0.0123373381793499,
-0.07082493603229523,
-0.0010196618968620896,
0.020277172327041626,
-0.0356137715280056,
-0.025083491578698158,
-0.031877484172582626,
0.023130113258957863,
0.006971927359700203,
-0.09459710121154785,
0.010712466202676296,
-0.027325337752699852,
-0.024943768978118896,
-0.04884548857808113,
-0.04785307124257088,
0.011999094858765602,
0.10657145082950592,
0.010899967513978481,
-0.014087068848311901,
0.03857533633708954,
0.03091531991958618,
0.016217229887843132,
0.04020693153142929,
0.026164909824728966,
0.06369329988956451,
0.004058973863720894,
0.021321602165699005,
-0.0026757381856441498,
-0.04366522654891014,
-0.02914980612695217,
-0.01738198660314083,
0.015303453430533409,
0.07316065579652786,
-0.08616351336240768,
-0.020573077723383904,
0.05724327266216278,
-0.03338276222348213,
-0.04450307786464691,
0.00967873353511095,
-0.0033393234480172396,
0.0005506584420800209,
-0.05712170526385307,
-0.012678814120590687,
-0.11194229871034622,
-0.0030562477186322212,
0.09554321318864822,
0.09151298552751541,
0.03766370564699173,
-0.04486289992928505,
-0.013311661779880524,
0.012850157916545868,
0.03023633360862732,
0.02941357158124447,
-0.0156535767018795,
0.0074679492972791195,
0.06731244176626205,
-0.04463677480816841,
-0.03631111979484558,
-0.034461382776498795,
-0.10218233615159988,
0.04951111227273941,
-0.008595363236963749,
-0.011602931655943394,
0.07513857632875443,
-0.10005263984203339,
0.010031982325017452,
-0.010196471586823463,
0.018552958965301514,
0.07312233000993729,
0.01427033543586731,
0.0316755436360836,
-0.051577016711235046,
0.0045203897170722485,
0.041178781539201736,
-0.04208986833691597,
-0.08681496977806091,
-0.00045392473111860454,
-0.09509118646383286,
-0.04027710482478142,
-0.049400508403778076,
0.00418890081346035,
0.024165330454707146,
-0.05597091466188431,
-0.017993398010730743,
-0.0577048696577549,
-0.19024208188056946,
-6.287762628902602e-33,
-0.010288593359291553,
0.028398338705301285,
0.010789381340146065,
-0.017205605283379555,
0.01755554974079132,
0.022741394117474556,
-0.012743448838591576,
0.06565403938293457,
-0.07363961637020111,
-0.07135187834501266,
0.03771097958087921,
-0.0028726859018206596,
-0.046444740146398544,
-0.04713325574994087,
0.04240129515528679,
-0.033090487122535706,
0.1119663417339325,
0.029476970434188843,
-0.03169853240251541,
-0.004643866792321205,
0.025934824720025063,
-0.0004995029303245246,
0.010381089523434639,
0.0023665314074605703,
-0.02181069925427437,
0.0453675240278244,
0.10928016155958176,
0.010080180130898952,
-0.0037638891953974962,
-0.01786010153591633,
-0.10886212438344955,
0.06189630925655365,
0.009735467843711376,
-0.013991611078381538,
0.061547767370939255,
0.031952355057001114,
0.06713148206472397,
0.04682663828134537,
-0.08064931631088257,
-0.09755077213048935,
0.030767077580094337,
0.172720804810524,
-0.04180920496582985,
0.05831488221883774,
-0.05051001161336899,
0.04617858678102493,
-0.004490365739911795,
0.07947318255901337,
0.0017843073001131415,
-0.025184903293848038,
-0.01651574671268463,
-0.0552523136138916,
-0.06433489173650742,
0.04748442769050598,
-0.05884596332907677,
0.007211047690361738,
0.048360686749219894,
-0.05692383646965027,
0.005666801240295172,
-0.06332311779260635,
0.005830836482346058,
-0.013429995626211166,
-0.03257270157337189,
-0.07266750931739807,
0.03462813422083855,
-0.0930175706744194,
0.010925870388746262,
0.08452606201171875,
0.040798258036375046,
-0.029742462560534477,
0.09264965355396271,
-0.0879562571644783,
-0.08168616890907288,
-0.018333135172724724,
-0.03505026549100876,
0.029012907296419144,
-0.05380517989397049,
-0.06005990132689476,
-0.023406028747558594,
-0.034998055547475815,
0.009545150212943554,
0.05910700187087059,
-0.010389943607151508,
-0.015313253737986088,
0.06832190603017807,
0.051551368087530136,
-0.03461117669939995,
-0.023125367239117622,
-0.007777613587677479,
-0.08178006857633591,
-0.04147173464298248,
0.028234783560037613,
-0.052191320806741714,
0.030388977378606796,
0.027118613943457603,
-5.815697434741196e-8,
-0.01139876339584589,
0.03302906081080437,
-0.062225718051195145,
0.00984390638768673,
0.03699599206447601,
-0.06208772584795952,
0.03477972373366356,
0.03977196663618088,
0.03279022127389908,
0.022522028535604477,
0.031498391181230545,
-0.028893789276480675,
0.027136363089084625,
-0.0524059534072876,
0.08366531133651733,
-0.02290475182235241,
-0.0630832090973854,
-0.07191745936870575,
-0.033223092555999756,
0.012157127261161804,
0.01886141672730446,
0.02158515341579914,
0.07179073989391327,
-0.029827268794178963,
-0.04291490837931633,
0.04637080430984497,
0.010813509114086628,
0.06279756128787994,
0.04304390773177147,
-0.08919990062713623,
-0.09129144251346588,
0.017403852194547653,
0.05383927375078201,
-0.0158774983137846,
-0.013489819131791592,
0.04249555245041847,
-0.0025017596781253815,
-0.027709580957889557,
0.07831061631441116,
0.06798965483903885,
-0.04041273891925812,
-0.02554815076291561,
-0.0016523278318345547,
0.04541948065161705,
-0.07982198148965836,
-0.0458281934261322,
0.008109134621918201,
-0.049110569059848785,
-0.004242732189595699,
-0.02628212235867977,
-0.03856451436877251,
-0.020553018897771835,
-0.016933565959334373,
-0.06762421131134033,
-0.11456946283578873,
-0.014245234429836273,
-0.048857431858778,
-0.0439022071659565,
-0.04964447394013405,
-0.04465486854314804,
0.10079609602689743,
-0.09492301195859909,
-0.15684503316879272,
0.04569607228040695
] | 14,380 |
14,383 |
Fermi-LAT detection of a new gamma-ray source associated with the quasar 3C 395
|
M. Giroletti (INAF/IRA), R. Angioni (SSDC/INFN), C. C. Cheung (NRL), on behalf of the Fermi Large Area Telescope Collaboration
|
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed gamma-ray emission from a source positionally consistent with the radio quasar 3C 395, also known as 4C +31.52 and B2 1901+31, with coordinates R.A. = 285.733079 deg, Decl. = 31.994917 deg (J2000; Johnston et al. 1995, AJ, 110, 880). 3C 395 is a known radio source showing superluminal motion (Lister et al. 2019, ApJ, 874, 43) and asymmetries between the parsec and kiloparsec scales (Lara et al. 1997, A&A, 319, 405). The redshift is 0.634 (Gelderman & Whittle 1994, ApJS, 91, 491). The source is not in any published LAT catalog and was not detected by AGILE or EGRET.
Preliminary analysis indicates that this source was significantly detected (>5 sigma) in a high gamma-ray state on 8 February 2021, with a daily averaged gamma-ray flux (E>100MeV) of (5.2+/-1.4) x 10^-7 photons cm^-2 s^-1 and a single power-law photon index of 2.7+/-0.3 (statistical uncertainties only). This corresponds to a flux increase of a factor of 60 relative to the preliminary flux based on an internal Fermi-LAT team 12-year catalog. An even higher flux of (1.2+/-0.3) x 10^-6 photons cm^-2 s^-1 was obtained for the 6-hr interval between 00-06 UT.
Because Fermi normally operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. We encourage multifrequency observations of this source. For this source, the Fermi-LAT contact person is Marcello Giroletti ([email protected]).
The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
|
2021-02-10 07:07:00
|
radio,gamma ray,agn,blazar,quasar
|
2021-02-10
|
07:07:00
| 1,795 |
[
-0.05836013704538345,
-0.10847599059343338,
-0.09701115638017654,
0.020153017714619637,
-0.016010327264666557,
-0.021448789164423943,
-0.002719075419008732,
0.07099498808383942,
0.019473789259791374,
-0.025316348299384117,
-0.000604312343057245,
-0.08776367455720901,
0.0057851034216582775,
-0.02432153932750225,
0.021452488377690315,
-0.036851827055215836,
0.0667896643280983,
-0.09301984310150146,
0.0075584109872579575,
-0.016323428601026535,
-0.041731465607881546,
0.05826888978481293,
0.045261822640895844,
0.01856842264533043,
0.06405344605445862,
-0.03770751506090164,
-0.029089434072375298,
-0.06867067515850067,
0.010208300314843655,
-0.010574491694569588,
0.014576652087271214,
0.056692659854888916,
-0.04075749218463898,
0.026904333382844925,
0.06183265894651413,
-0.002292478457093239,
0.014822056517004967,
-0.08584627509117126,
0.06208282336592674,
-0.018755335360765457,
0.02180158905684948,
0.01753779500722885,
-0.010634972713887691,
-0.03545038402080536,
-0.06373721361160278,
0.012149298563599586,
-0.030382875353097916,
0.007147503551095724,
-0.07624181360006332,
0.02003469131886959,
0.027602724730968475,
0.03613923490047455,
-0.03016030229628086,
0.10293302685022354,
0.0197894386947155,
0.0008315959712490439,
-0.030490316450595856,
-0.06376369297504425,
0.09268955886363983,
0.04467175528407097,
-0.008530516177415848,
0.04361017420887947,
-0.059332240372896194,
-0.04093409329652786,
0.018801579251885414,
0.010669557377696037,
-0.08955065906047821,
-0.12934516370296478,
0.014370451681315899,
-0.04235738143324852,
-0.012344286777079105,
0.030348746106028557,
-0.019317900761961937,
-0.02204068936407566,
0.02075621299445629,
-0.030604055151343346,
0.10055036842823029,
0.018024597316980362,
0.014642016962170601,
-0.07770253717899323,
0.041672032326459885,
-0.003500421531498432,
0.011157099157571793,
0.04195893555879593,
0.03326201066374779,
0.0004481996002141386,
-0.0322381891310215,
0.08752470463514328,
0.06756066530942917,
0.00574133126065135,
0.010276028886437416,
0.005612946581095457,
-0.08479122817516327,
-0.01857992261648178,
0.0289457980543375,
0.0018330425955355167,
0.026181824505329132,
0.025045698508620262,
0.09889236837625504,
0.06170664355158806,
0.07284782081842422,
-0.02758857049047947,
-0.05249921232461929,
0.06857996433973312,
-0.042326219379901886,
0.010368049144744873,
0.01958048902451992,
0.10423513501882553,
-0.017751211300492287,
0.02586476132273674,
0.04222705215215683,
-0.021241502836346626,
-0.029693711549043655,
-0.06303993612527847,
-0.051741670817136765,
0.015293209813535213,
-0.011687024496495724,
0.0325009860098362,
-0.14756985008716583,
-0.05943220481276512,
-0.017339879646897316,
0.04065374657511711,
-0.010503699071705341,
0.04992646723985672,
0.040520720183849335,
-0.011516736820340157,
-0.07515816390514374,
6.046479556426866e-33,
0.05321997404098511,
0.046506982296705246,
0.031471021473407745,
0.010364910587668419,
-0.011849910952150822,
0.11896903812885284,
-0.086545929312706,
0.043628714978694916,
0.020802227780222893,
-0.022111859172582626,
-0.037101201713085175,
0.04826517403125763,
0.009425448253750801,
-0.0976220965385437,
-0.0015015503158792853,
-0.016078859567642212,
-0.01915176771581173,
0.05395197868347168,
-0.07138152420520782,
0.016468973830342293,
-0.0014287868980318308,
0.02235654555261135,
-0.04453705623745918,
-0.011867218650877476,
0.10006775707006454,
0.0654614046216011,
-0.04734387993812561,
0.05306665226817131,
0.015029084868729115,
0.049590736627578735,
-0.03936370089650154,
0.027854537591338158,
0.007881908677518368,
-0.003914991393685341,
0.00015877488476689905,
-0.0667172521352768,
-0.08681827038526535,
-0.025244086980819702,
-0.030256792902946472,
0.0466645173728466,
0.052513450384140015,
0.0801062360405922,
-0.10886161774396896,
-0.04543061554431915,
-0.005393822677433491,
-0.0032163721043616533,
0.020749881863594055,
0.05643858760595322,
0.09362352639436722,
0.04500193148851395,
-0.018762540072202682,
-0.022246822714805603,
-0.018793916329741478,
-0.0015510055236518383,
0.07145952433347702,
0.025450503453612328,
0.03278201073408127,
-0.0069540622644126415,
0.016046222299337387,
0.043505650013685226,
0.05580985173583031,
0.020349331200122833,
0.08096784353256226,
0.06947706639766693,
0.03153509646654129,
-0.00038980867248028517,
-0.02151678130030632,
0.04901661351323128,
0.0030302833765745163,
0.012066377326846123,
-0.06698653101921082,
0.05275827273726463,
0.10740800946950912,
-0.04142621532082558,
0.0787862241268158,
-0.13322025537490845,
-0.022965509444475174,
0.06600622087717056,
-0.02709980495274067,
0.01599220372736454,
-0.0601380355656147,
-0.07137017697095871,
0.013911708258092403,
-0.04397137835621834,
-0.04637196660041809,
0.020822102203965187,
-0.04523959755897522,
0.026005446910858154,
0.0134601891040802,
-0.07386978715658188,
0.08035541325807571,
-0.019052108749747276,
-0.03482227027416229,
-0.014799443073570728,
-0.08916042000055313,
-4.4901955655992065e-33,
-0.021069839596748352,
-0.007001726422458887,
-0.017458584159612656,
-0.0034803561866283417,
-0.03408336266875267,
-0.030706854537129402,
0.04717219993472099,
0.03954901546239853,
-0.011011331342160702,
0.03447270393371582,
0.09020188450813293,
0.046885062009096146,
-0.054989904165267944,
-0.025729099288582802,
0.004924730397760868,
-0.03374948725104332,
0.06863684207201004,
0.008333966135978699,
-0.03665565326809883,
-0.0025428819935768843,
0.059669867157936096,
-0.07034792006015778,
-0.012846361845731735,
-0.03034716285765171,
-0.005910101812332869,
0.045313287526369095,
0.05340709909796715,
-0.03272545337677002,
0.0006800398114137352,
-0.011646226048469543,
-0.13930389285087585,
0.011846358887851238,
-0.0051565999165177345,
-0.06020005792379379,
0.02868219092488289,
-0.03095635585486889,
0.030980275943875313,
0.010973058640956879,
-0.0749933272600174,
-0.04880565032362938,
-0.008414951153099537,
0.1722017377614975,
0.018372545018792152,
0.015212107449769974,
-0.02194819413125515,
0.05622883513569832,
0.046914633363485336,
0.08469590544700623,
0.015104792080819607,
-0.015263850800693035,
0.017603611573576927,
-0.08698516339063644,
0.013962008990347385,
0.09469182044267654,
-0.04254336655139923,
0.04270271956920624,
0.012092087417840958,
0.03721393272280693,
-0.03830167278647423,
-0.032024066895246506,
0.01415183488279581,
0.008062032051384449,
0.02453753352165222,
-0.00033960992004722357,
0.08163945376873016,
-0.048708368092775345,
0.036003924906253815,
0.11917340010404587,
0.021071363240480423,
-0.003416044870391488,
0.056619323790073395,
-0.14487722516059875,
-0.051460303366184235,
0.04407401382923126,
-0.0037882637698203325,
0.03857005760073662,
0.0658482015132904,
-0.030247477814555168,
0.0369563065469265,
-0.008279817178845406,
-0.004728777799755335,
0.025106048211455345,
0.04059850797057152,
-0.023167936131358147,
0.07122548669576645,
0.03818917274475098,
-0.04955006018280983,
-0.0022880416363477707,
-0.014853096567094326,
-0.006208788603544235,
-0.048753052949905396,
0.03439086303114891,
0.035033538937568665,
0.026293769478797913,
0.07925600558519363,
-6.13083486200594e-8,
-0.009685218334197998,
0.05594763532280922,
-0.10875098407268524,
0.055561553686857224,
0.024578090757131577,
-0.04870825260877609,
0.007327693980187178,
0.038502324372529984,
0.007553056348115206,
0.03471644967794418,
0.04545046389102936,
0.011844664812088013,
0.052108265459537506,
-0.06308793276548386,
0.012970102950930595,
-0.024693023413419724,
-0.04608883708715439,
-0.08599584549665451,
-0.00938361044973135,
0.028126277029514313,
0.012283150106668472,
0.016133803874254227,
0.10199136286973953,
-0.04054166376590729,
-0.03059273026883602,
0.027112361043691635,
-0.052105553448200226,
0.0687699168920517,
-0.003753565950319171,
-0.08997230231761932,
-0.036277394741773605,
-0.00645161047577858,
0.03900187090039253,
-0.0897664800286293,
-0.0657137781381607,
-0.029151134192943573,
-0.09755228459835052,
0.06528770178556442,
0.08257543295621872,
0.09682974964380264,
0.02794577181339264,
-0.04363016039133072,
0.019023559987545013,
0.04364578053355217,
-0.08760768920183182,
0.049050137400627136,
-0.05117371305823326,
-0.07405851036310196,
0.05241577327251434,
0.016261782497167587,
-0.06277383118867874,
0.012872647494077682,
0.029409006237983704,
-0.14531922340393066,
-0.07346341758966446,
0.00804872065782547,
-0.033049121499061584,
-0.029233770444989204,
-0.05318313091993332,
-0.025288142263889313,
0.05214066430926323,
-0.03762228786945343,
-0.12425751984119415,
0.04287511110305786
] | 14,381 |
14,384 |
NICER X-ray activity indicates GX 339-4 rising in hard state
|
Jingyi Wang (MIT), James F. Steiner (SAO, CfA), Erin Kara (MIT), Andy Fabian (University of Cambridge), Keith Gendreau, Zaven Arzoumanian (NASA/GSFC), Jeroen Homan (Eureka Scientific/SRON), Javier Garcia (Caltech), for the NICER team
|
GX 339-4 is a low-mass X-ray binary that goes into outburst cycles typically every 2-3 years. X-ray observations with Swift/BAT, MAXI/GSC (ATel #14351, #14367), NuSTAR (ATel #14352) and INTEGRAL (ATel #14354) suggested that the source entered a new outburst during the last week of January 2021 and is brightening.
We triggered NICER Target of Opportunity observations with a near-daily cadence starting on 2021-01-20 (MJD 59234). By 2021-02-07 (MJD 59252) we had obtained a total exposure of ~35 ks. During this period the source brightened rapidly, with the total NICER mean count rate increasing from ~40 counts/s/52FPM to ~520 counts/s/52FPM. The energy spectra in the 0.5-10 keV band can be well approximated by a disk blackbody with Compton up-scattering into a continuum power-law (modeled by simplcut*diskbb; Steiner et al. 2017) and a weak Fe K line feature (modeled by the laor model), absorbed by a moderate Galactic column density. The fitted column density, using Wilms et al. 2000 abundances, is (6.46+/-0.03)E21 cm-2, which agrees well with previous X-ray spectroscopy results (e.g., Tomsick et al. 2009). The modeled flux increases from 2.2E-10 to 2.2E-9 erg cm-2 s-1, corresponding to 7 and 73 mCrab, respectively. Our preliminary fit suggests the disk temperature increased from kT~0.1 to ~0.25 keV, with the disk emission flux increasing from 2.3E-13 to 1.6E-10 erg cm-2 s-1. The fraction of the disk blackbody flux to the total flux increases from 0.1% to 8%. The source slightly softened as the hardness ratio ([4-12]/[2-4] keV) steadily dropped from 0.4 to 0.36, and the photon index Gamma increased from 1.54±0.03 to 1.66±0.01.
The light curve and hardness ratio show extreme variability, with large amplitude flaring on timescales of tens of seconds. The power spectra show an integrated 0.1-64 Hz fractional rms of ~40%, dropping from 43% to 35%. Combined with spectral features including the detection of relatively cool thermal disk emission of growing prominence and the hard power-law spectrum with a Gamma ~1.6, the X-ray activity indicates that GX 339-4 is rising in the canonical hard state, and is already twice as bright as it was in the previous two hard-only outbursts (Wang et al. 2020).
NICER will keep monitoring the source on a near-daily cadence. We encourage further multi-wavelength observations as a brightening hard state and possible state transition are in the offing.
NICER is a 0.2-12 keV X-ray telescope operating on the International Space Station. The NICER mission and portions of the NICER science team activities are funded by NASA.
|
2021-02-11 05:04:00
|
x-ray,binary,black hole,transient
|
2021-02-11
|
05:04:00
| 2,591 |
[
-0.03036459907889366,
-0.023212598636746407,
0.08908211439847946,
0.1008581817150116,
0.025479154661297798,
-0.07675804197788239,
-0.003981285262852907,
0.05421942472457886,
0.009002752602100372,
0.00030210838303901255,
-0.019455643370747566,
-0.025058533996343613,
0.07263057678937912,
0.006194215267896652,
0.023060103878378868,
0.04734201356768608,
0.03197230398654938,
-0.09105674922466278,
-0.03700044006109238,
0.043663058429956436,
-0.0016911178827285767,
0.04034993797540665,
-0.06257116794586182,
0.0008440774399787188,
0.023290257900953293,
0.010145594365894794,
-0.023213567212224007,
-0.04783736914396286,
0.056035157293081284,
-0.022080080583691597,
0.03189529851078987,
0.11533740162849426,
0.014447527006268501,
0.023009900003671646,
0.04563930258154869,
0.0042764549143612385,
0.01037788949906826,
-0.03812358155846596,
-0.0336589440703392,
0.0176070723682642,
-0.020913338288664818,
-0.03144243359565735,
0.016335701569914818,
0.013302657753229141,
-0.07452524453401566,
0.002711052307859063,
0.027772020548582077,
-0.08709147572517395,
-0.05322945490479469,
0.017483511939644814,
-0.00489176856353879,
-0.035929422825574875,
-0.0028166428674012423,
-0.0031531748827546835,
0.0638170838356018,
0.049468833953142166,
-0.0894843339920044,
-0.0365804098546505,
0.09617752581834793,
-0.044293828308582306,
-0.015184212476015091,
-0.019464341923594475,
-0.052280355244874954,
-0.03312410041689873,
0.07167662680149078,
0.014687529765069485,
-0.0012228763662278652,
-0.025307949632406235,
0.018366126343607903,
-0.004905827343463898,
0.06129630282521248,
0.04023873433470726,
-0.014699508436024189,
-0.09264549612998962,
-0.01461703609675169,
0.06047948822379112,
0.047671739012002945,
-0.02109266072511673,
0.06153430417180061,
-0.08475951850414276,
0.01930229552090168,
0.0330904982984066,
-0.009932959452271461,
-0.03988414257764816,
-0.014436722733080387,
0.011505483649671078,
0.027986323460936546,
0.10277843475341797,
0.02721180021762848,
0.08009395748376846,
0.038577836006879807,
0.04164780303835869,
-0.058823250234127045,
0.027042267844080925,
0.06506794691085815,
0.026034945622086525,
0.024435749277472496,
-0.058884259313344955,
0.07059002667665482,
0.04112651199102402,
0.05799061059951782,
0.005129302851855755,
-0.07343823462724686,
0.0629253089427948,
-0.048010144382715225,
-0.035866230726242065,
0.03947346657514572,
0.10544277727603912,
-0.13532289862632751,
0.007493662182241678,
0.044914327561855316,
0.050800587981939316,
0.00463428208604455,
-0.0929374247789383,
-0.0075414543971419334,
0.008348479866981506,
0.014112066477537155,
0.029764298349618912,
-0.13485819101333618,
-0.04111263528466225,
0.03090403415262699,
-0.01679273508489132,
-0.01580973155796528,
0.08547592163085938,
-0.004385126288980246,
0.005902186036109924,
-0.06551894545555115,
6.382797673746738e-33,
0.06466798484325409,
0.032513272017240524,
-0.027707433328032494,
-0.027019618079066277,
-0.004225408658385277,
-0.007196648977696896,
-0.0186917781829834,
0.05190937966108322,
-0.05768308416008949,
-0.011200329288840294,
-0.05517059192061424,
0.06331625580787659,
0.011898755095899105,
0.0030444038566201925,
-0.015978805720806122,
-0.08880121260881424,
0.053345054388046265,
0.09382100403308868,
-0.1115298643708229,
0.04365267604589462,
-0.031070584431290627,
-0.049965836107730865,
-0.02768971025943756,
-0.030193159356713295,
-0.02406344935297966,
0.10379153490066528,
0.04559832811355591,
-0.04613932967185974,
-0.024867044761776924,
0.005772474221885204,
0.02855934016406536,
0.014947934076189995,
0.011688646860420704,
0.027700766921043396,
-0.015204907394945621,
-0.02428724244236946,
-0.06923366338014603,
-0.000020546514861052856,
-0.03146190196275711,
-0.019559334963560104,
-0.017207063734531403,
0.11849503964185715,
-0.028603246435523033,
-0.04783809557557106,
0.05284298211336136,
0.02737198956310749,
0.00530177541077137,
-0.02602754533290863,
0.0029132759664207697,
0.01854126527905464,
0.01660894602537155,
-0.025766735896468163,
-0.060824859887361526,
0.025288037955760956,
0.024983152747154236,
0.08266592770814896,
0.031142408028244972,
-0.03406738117337227,
-0.00976642593741417,
0.09416702389717102,
0.03481206297874451,
0.04114138334989548,
-0.030857529491186142,
0.012869210913777351,
-0.02490481361746788,
0.08086661994457245,
-0.005386225879192352,
0.02063876949250698,
-0.06985027343034744,
0.11527115851640701,
-0.015843210741877556,
0.02316131256520748,
0.023858852684497833,
-0.09463381767272949,
0.06786248832941055,
-0.059659868478775024,
0.016228606924414635,
0.08134571462869644,
-0.002190433209761977,
0.00008838791109155864,
-0.05267980322241783,
-0.05274813994765282,
0.0124562568962574,
-0.03917916491627693,
-0.0821046233177185,
0.013522934168577194,
-0.04988753795623779,
0.007607806008309126,
-0.06868527084589005,
0.03870132938027382,
0.04460436478257179,
-0.09372542053461075,
0.008988035842776299,
0.00039881275733932853,
-0.133358895778656,
-6.0296086410986736e-33,
0.008956546895205975,
0.02068168669939041,
-0.004605045076459646,
0.04639294743537903,
0.00003357187597430311,
0.02051299437880516,
0.01236011553555727,
0.06691330671310425,
-0.03173357993364334,
-0.034199584275484085,
0.05688309296965599,
0.09341176599264145,
-0.030451171100139618,
-0.019554603844881058,
-0.014268029481172562,
-0.07609929144382477,
0.0953800156712532,
-0.03738739341497421,
-0.08498069643974304,
-0.026299521327018738,
0.037927526980638504,
0.01713935099542141,
-0.0044968146830797195,
-0.11102139949798584,
0.026340316981077194,
0.04984987527132034,
0.0682385265827179,
0.04233555868268013,
-0.008885437622666359,
-0.028090868145227432,
-0.12686289846897125,
0.08488829433917999,
-0.04900442436337471,
-0.02176591567695141,
0.027245521545410156,
0.042475081980228424,
0.06468325853347778,
0.009771049953997135,
-0.09089704602956772,
0.0022502834908664227,
-0.022831832990050316,
0.12098805606365204,
0.01689026691019535,
0.06749404221773148,
-0.025087034329771996,
0.0661582201719284,
0.03983806073665619,
0.058690208941698074,
0.10975445061922073,
-0.0007048739353194833,
0.008892359212040901,
-0.0568678192794323,
-0.04825834557414055,
0.10101621598005295,
-0.045769061893224716,
-0.039144862443208694,
0.024503767490386963,
-0.043063949793577194,
-0.07059129327535629,
-0.023992514237761497,
-0.029246283695101738,
-0.017701270058751106,
-0.025882858783006668,
-0.06455226987600327,
0.019123069941997528,
-0.06351830810308456,
0.01837262324988842,
0.007462268695235252,
-0.01697472110390663,
0.029245607554912567,
0.08236809074878693,
-0.08238682150840759,
-0.05562734603881836,
-0.015595017932355404,
-0.038592737168073654,
0.00804456789046526,
-0.028185728937387466,
-0.1128583550453186,
0.00341130793094635,
0.0016707484610378742,
-0.06059013307094574,
0.05162077024579048,
0.0022814872208982706,
0.018466534093022346,
0.05520928278565407,
-0.01541057974100113,
-0.02868364006280899,
-0.03574481979012489,
0.0016212937189266086,
-0.018527068197727203,
-0.11460431665182114,
-0.005030051805078983,
-0.049982473254203796,
0.04582934454083443,
0.032262738794088364,
-6.005152641819222e-8,
-0.05505996197462082,
0.04585692286491394,
-0.08221485465765,
0.04201178252696991,
0.0783996507525444,
-0.038111597299575806,
-0.026137154549360275,
0.0732262134552002,
0.06608665734529495,
-0.012235179543495178,
0.08119724690914154,
-0.034026410430669785,
0.036294206976890564,
-0.09428515285253525,
0.04975961521267891,
-0.04747781157493591,
-0.028388429433107376,
-0.1312723308801651,
-0.03906707838177681,
-0.03094649687409401,
-0.009116503410041332,
-0.01344794500619173,
0.10403305292129517,
-0.038531623780727386,
0.0006274316692724824,
-0.011182619258761406,
0.04889056086540222,
0.0734555721282959,
0.018424153327941895,
-0.06671250611543655,
0.012721444480121136,
0.013364560902118683,
0.023066896945238113,
-0.060681987553834915,
-0.03926202654838562,
0.03924427554011345,
-0.06874212622642517,
0.052724774926900864,
0.09368554502725601,
0.03977787494659424,
-0.03784278780221939,
-0.02951749414205551,
0.02766355872154236,
0.03316357731819153,
-0.07612894475460052,
0.0219588503241539,
-0.051488980650901794,
-0.09348877519369125,
0.04952867701649666,
-0.0124514726921916,
0.007546407636255026,
-0.031243858858942986,
-0.025761399418115616,
-0.015690460801124573,
-0.043019864708185196,
-0.027291422709822655,
-0.026309199631214142,
-0.047232650220394135,
0.04486290365457535,
-0.01604706607758999,
0.09550999104976654,
-0.08797979354858398,
-0.11805927753448486,
-0.009242074564099312
] | 14,382 |
14,385 |
3C 279: ALMA detection of polarization flare with an EVPA jump
|
Seiji Kameno, Paulo Cortes, Edward Fomalont, Ruediger Kneissl, Antonio Hales, Celia Verdugo, Matias Radiszcz, Kurt Plarre, Cristian Lopez, Satoko Takahashi, Jose Fernandez, Jorge Garcia, Charles Hull, Pei-Ying Hsieh, Hugo Messias, David Rebolledo, Gabriel Marinello, Brenda Matthews, Enrique Macias, Juan Cortes, Sergio Martin, William Dent, Tsuyoshi Sawada, Akihiko Hirota, Stuartt Corder (Joint ALMA Observatory), Claudia Agliozzo, Marie-Lou Gendron-Marsolais, Alvaro Ribas, Alejandro Santamaria, Chentao Yang, Eric Villard (European Southern Observatory), Gerald Schieven (National Research Council Canada)
|
The blazar J1256-0547 (3C 279) showed a flare in polarized flux together with a ~90º jump in the electric vector position angle (EVPA) of linear polarization at the frequencies of 97.5, 233.0, and 343.4 GHz between 2020 Mar 19 and 2021 Jan 21. This change in EVPA is the biggest event since ALMA started monitoring in 2012. Control sources (J1229+0203, J1337-1257, J1331+3030, and J1058+0133), observed together with 3C 279, have not shown such a jump in EVPA (see the text file). The array had been shutdown for 10 months due to COVID-19 pandemic and the jump was identified in the recovery process. The light curve with polarized flux density and EVPA is presented in the external link (http://www.alma.cl/~skameno/AMAPOLA/J1256-0547.flux.html). 97.5 GHz | Date | Freq. | I (err) | Q (err) | U (err) | P (err) | EVPA (err) | | | GHz | Jy | Jy | Jy | % | deg. | |:-----------+-------+--------------+---------------+---------------+---------------+---------------:| |2020-03-04 | 97.5 | 12.80 (0.05) | -0.05 (0.02) | 0.54 (0.03) | 4.24 (0.34) | 47.54 ( 1.15) | |2020-03-15 | 97.5 | 14.19 (0.13) | -0.09 (0.20) | 0.72 (0.06) | 5.13 (0.83) | 48.45 ( 7.88) | |2020-03-16 | 97.5 | 14.43 (0.07) | 0.07 (0.03) | 0.79 (0.03) | 5.50 (0.34) | 42.46 ( 1.14) | |2020-03-17 | 97.5 | 14.03 (0.07) | 0.03 (0.04) | 0.81 (0.09) | 5.36 (0.49) | 43.99 ( 1.48) | |2020-03-19 | 97.5 | 13.70 (0.12) | -0.03 (0.03) | 0.65 (0.04) | 4.73 (0.42) | 46.25 ( 1.53) | |2021-01-21 | 97.5 | 13.77 (0.15) | -0.55 (0.03) | -0.46 (0.12) | 5.23 (0.50) | -69.90 ( 3.88) | |2021-01-28 | 97.5 | 14.18 (0.07) | -0.61 (0.03) | -0.11 (0.02) | 4.34 (0.36) | -84.81 ( 1.07) | |2021-02-06 | 97.5 | 14.47 (0.02) | -0.79 (0.01) | -0.78 (0.01) | 7.88 (0.09) | -67.54 ( 0.05) | |2021-02-08 | 97.5 | 14.68 (0.08) | -0.81 (0.01) | -0.78 (0.01) | 7.64 (0.32) | -68.09 ( 0.29) | 233.0 GHz | Date | Freq. | I (err) | Q (err) | U (err) | P (err) | EVPA (err) | | | GHz | Jy | Jy | Jy | % | deg. | |:-----------+-------+--------------+---------------+---------------+---------------+---------------:| |2020-03-16 | 233.0 | 9.00 (0.10) | 0.07 (0.18) | 0.52 (0.05) | 5.83 (1.08) | 41.33 ( 9.51) | |2020-03-18 | 233.0 | 8.70 (0.03) | -0.11 (0.01) | 0.56 (0.01) | 6.47 (0.26) | 50.45 ( 0.68) | |2021-01-21 | 233.0 | 9.10 (0.05) | -0.83 (0.08) | -0.47 (0.01) | 10.55 (0.38) | -75.29 ( 1.19) | |2021-02-07 | 233.0 | 8.96 (0.03) | -0.78 (0.01) | -0.78 (0.01) | 11.95 (0.16) | -67.42 ( 0.08) | 343.4 GHz | Date | Freq. | I (err) | Q (err) | U (err) | P (err) | EVPA (err) | | | GHz | Jy | Jy | Jy | % | deg. | |:-----------+-------+--------------+---------------+---------------+---------------+---------------:| |2020-02-27 | 343.4 | 5.81 (0.06) | -0.16 (0.02) | 0.11 (0.01) | 3.22 (0.35) | 72.99 ( 1.64) | |2020-02-28 | 343.4 | 5.81 (0.09) | -0.13 (0.05) | 0.19 (0.01) | 3.93 (0.26) | 62.36 ( 4.83) | |2021-01-28 | 343.4 | 6.48 (0.05) | -0.47 (0.01) | -0.32 (0.01) | 8.83 (0.33) | -72.95 ( 0.38) | |2021-02-07 | 343.4 | 6.65 (0.04) | -0.64 (0.01) | -0.70 (0.01) | 13.95 (0.21) | -66.24 ( 0.17) | |2021-02-08 | 343.4 | 6.69 (0.05) | -0.57 (0.01) | -0.69 (0.01) | 13.40 (0.23) | -64.65 ( 0.12) |
|
2021-02-11 05:32:00
|
radio,millimeter,sub-millimeter,agn,blazar,quasar
|
2021-02-11
|
05:32:00
| 3,133 |
[
-0.05378587171435356,
-0.03886442258954048,
0.0009535502758808434,
0.0753072053194046,
0.05933975428342819,
-0.011407202109694481,
-0.04926545172929764,
0.011254384182393551,
0.00973665714263916,
0.02439280040562153,
-0.03353854641318321,
0.04134286940097809,
-0.026961490511894226,
0.015631239861249924,
0.05486145243048668,
0.0216287299990654,
0.008562877774238586,
-0.09318461269140244,
-0.01817682944238186,
0.004704073071479797,
-0.036079615354537964,
-0.04218699410557747,
-0.10010766983032227,
0.02601533755660057,
0.035520680248737335,
0.014083211310207844,
-0.022207099944353104,
-0.04946611076593399,
-0.04943671077489853,
0.02789417654275894,
-0.05110005661845207,
0.053316425532102585,
-0.10328233987092972,
0.032304443418979645,
-0.020688606426119804,
-0.03467240557074547,
0.012433328665792942,
-0.0678386390209198,
-0.00790611281991005,
0.05813569948077202,
0.02171470783650875,
-0.06308788806200027,
-0.011178127489984035,
-0.06824038177728653,
0.06482744961977005,
-0.04080707207322121,
0.031053844839334488,
-0.05366941913962364,
0.00201604375615716,
-0.010357793420553207,
-0.0030015569645911455,
-0.011305684223771095,
-0.003976238891482353,
0.04526448994874954,
0.03185702860355377,
-0.012252670712769032,
-0.016009150072932243,
-0.0603177435696125,
0.09807561337947845,
0.027518978342413902,
-0.00942306499928236,
-0.03205355629324913,
-0.06858784705400467,
-0.04077121615409851,
-0.017059747129678726,
-0.044965825974941254,
-0.028855139389634132,
-0.03277458995580673,
0.030304815620183945,
-0.017489366233348846,
-0.033734701573848724,
0.04646190255880356,
-0.009104417636990547,
-0.07990168035030365,
0.056151147931814194,
0.05785232409834862,
0.07949719578027725,
0.049010150134563446,
0.06485303491353989,
-0.0789220929145813,
0.06520240008831024,
-0.0038470060098916292,
-0.05597257241606712,
-0.03163178637623787,
0.021664435043931007,
0.05298891291022301,
-0.009861172176897526,
0.027083400636911392,
-0.02699265070259571,
0.024393923580646515,
0.051167599856853485,
0.007902844808995724,
-0.07558867335319519,
0.03229368478059769,
0.018289361149072647,
0.05780869349837303,
0.06952209025621414,
-0.00008948666072683409,
0.03697948902845383,
0.024954618886113167,
0.03335878252983093,
-0.00005401392627391033,
-0.10916291922330856,
0.09084982424974442,
-0.08630944788455963,
0.0037463800981640816,
0.06816771626472473,
0.04102596640586853,
-0.021014941856265068,
-0.0020570922642946243,
0.001627650111913681,
0.025110097602009773,
-0.05895190313458443,
-0.08378202468156815,
-0.0391884371638298,
0.045184433460235596,
0.00031664545531384647,
0.10209842026233673,
-0.01835343800485134,
0.07722055912017822,
0.03303729370236397,
0.05929574370384216,
0.031168513000011444,
0.15009412169456482,
0.0921410620212555,
0.07143782079219818,
-0.05075404420495033,
9.278161482676961e-33,
0.11467340588569641,
0.07545922696590424,
-0.02698338031768799,
0.00476645166054368,
-0.034073252230882645,
0.0502910278737545,
-0.08344068378210068,
0.0593494214117527,
0.026354506611824036,
-0.02197282575070858,
0.0004660810809582472,
0.07845380157232285,
0.056094467639923096,
-0.019142765551805496,
-0.013448209501802921,
-0.037402428686618805,
0.011385503225028515,
0.006274990271776915,
-0.11194735765457153,
0.0016589561710134149,
-0.012210678309202194,
-0.043722476810216904,
-0.047533463686704636,
0.004938984289765358,
-0.04464711248874664,
0.06231387332081795,
0.033423054963350296,
0.04193320497870445,
-0.0717625841498375,
0.0621408186852932,
-0.005505434237420559,
-0.0028065184596925974,
0.01693868450820446,
0.07577092945575714,
0.014394136145710945,
-0.024572793394327164,
-0.03748278692364693,
-0.021663594990968704,
-0.04884334281086922,
0.0005979266134090722,
0.013417134992778301,
0.05352076515555382,
-0.037057776004076004,
0.03430359065532684,
0.06615039706230164,
-0.049177370965480804,
0.05320259556174278,
-0.023008108139038086,
0.06633597612380981,
0.005709060467779636,
-0.04971752688288689,
0.011647073552012444,
-0.050202708691358566,
0.02568899095058441,
0.10660779476165771,
0.07871043682098389,
0.020295413210988045,
0.00010310480138286948,
-0.0038473864551633596,
0.01436411589384079,
-0.036902766674757004,
0.020316027104854584,
-0.018991446122527122,
-0.03289806470274925,
0.020081156864762306,
0.03513052314519882,
0.035368937999010086,
0.022835025563836098,
-0.10390777885913849,
0.0002805725671350956,
0.02890261448919773,
0.019983625039458275,
0.015017486177384853,
-0.0016697890823706985,
0.004695232026278973,
-0.01789136230945587,
0.03879168629646301,
0.18328319489955902,
0.01680537685751915,
-0.027182212099432945,
-0.10300242900848389,
-0.05362856388092041,
0.10778128355741501,
-0.05103825777769089,
-0.08085516095161438,
-0.05494483932852745,
-0.0209786519408226,
0.06338272988796234,
-0.027268942445516586,
-0.06947065144777298,
0.05886529013514519,
0.08516541123390198,
0.05319751054048538,
-0.014408647082746029,
-0.10199626535177231,
-9.011961970725623e-33,
-0.0678391233086586,
0.018445957452058792,
-0.08186361938714981,
-0.028438763692975044,
-0.06533064693212509,
-0.03734155371785164,
0.08581103384494781,
0.06602669507265091,
-0.012528029270470142,
-0.053015947341918945,
0.07531160861253738,
-0.007579304743558168,
-0.0016822329489514232,
-0.02526041306555271,
0.013199633918702602,
0.003822886850684881,
-0.011651218868792057,
0.01273574959486723,
0.011845536530017853,
0.023657217621803284,
0.026235105469822884,
0.008256821893155575,
0.05350566282868385,
0.029183996841311455,
0.04880952462553978,
-0.0059288800694048405,
0.07052314281463623,
-0.02294541336596012,
-0.04146399721503258,
-0.00042116755503229797,
-0.083199143409729,
0.053558021783828735,
-0.038331981748342514,
0.029516534879803658,
0.01696714758872986,
0.06882725656032562,
0.0037876747082918882,
-0.07179117202758789,
-0.017726941034197807,
0.02596559189260006,
-0.009899387136101723,
0.147336944937706,
0.009965500794351101,
-0.04226643592119217,
-0.021859468892216682,
0.005030428059399128,
-0.007297450676560402,
0.09304589778184891,
0.06688486039638519,
-0.006119146477431059,
-0.03400697186589241,
-0.017881587147712708,
0.01712978258728981,
0.0967191755771637,
-0.05168494954705238,
-0.03426092118024826,
0.06795737147331238,
0.039936672896146774,
0.012628832831978798,
-0.0245838463306427,
0.032569095492362976,
0.013150754384696484,
-0.033801283687353134,
-0.04464082047343254,
0.059666458517313004,
-0.05412748456001282,
0.060956522822380066,
-0.03559652715921402,
0.08471141010522842,
0.03451895713806152,
0.08895353972911835,
-0.02422693558037281,
-0.11335348337888718,
-0.017632288858294487,
-0.04378001019358635,
0.01698882132768631,
0.04358143359422684,
-0.0895821675658226,
-0.07826680690050125,
-0.006841791793704033,
-0.006377277430146933,
0.05624603107571602,
-0.03462039306759834,
-0.04827558621764183,
0.05925819277763367,
0.019850946962833405,
-0.07168767601251602,
-0.07102320343255997,
-0.044529762119054794,
-0.04379863664507866,
-0.04490913823246956,
0.0016977110644802451,
-0.07839509844779968,
0.010806484147906303,
0.05324282869696617,
-6.60963479504062e-8,
0.004117617383599281,
0.0701083242893219,
-0.0719185397028923,
0.03743342310190201,
0.09586963057518005,
-0.09766118973493576,
-0.0320306234061718,
-0.03631828725337982,
-0.005766535643488169,
0.012215051800012589,
-0.02269769459962845,
0.025238733738660812,
0.08076231926679611,
-0.047701600939035416,
0.034828297793865204,
-0.04092247039079666,
0.004374535754323006,
-0.07440675050020218,
-0.010127170011401176,
0.05964863300323486,
0.07124943286180496,
0.02380005270242691,
-0.023094991222023964,
-0.04663064703345299,
0.04178205132484436,
-0.006444843485951424,
0.06105528771877289,
0.08377829939126968,
0.007303335703909397,
-0.07237120717763901,
-0.08269766718149185,
-0.047637369483709335,
0.04127443581819534,
-0.07189249992370605,
-0.09812962263822556,
0.04859202355146408,
-0.05841440334916115,
0.061356790363788605,
0.027047572657465935,
0.03704794868826866,
-0.051140643656253815,
-0.056650035083293915,
-0.025768974795937538,
0.00526972534134984,
-0.09318909049034119,
-0.01671784743666649,
-0.031791288405656815,
-0.08286561816930771,
0.003056422807276249,
-0.05800541117787361,
-0.008955362252891064,
-0.09769516438245773,
0.029072539880871773,
-0.061844754964113235,
-0.03742948919534683,
-0.013096966780722141,
-0.011414255015552044,
-0.041051458567380905,
0.029700297862291336,
-0.03645668178796768,
0.04223182797431946,
-0.02078571543097496,
-0.14299416542053223,
-0.020200980827212334
] | 14,383 |
14,386 |
Search for counterpart to IceCube-201209A with ANTARES
|
Alexis Coleiro (APC/Universite de Paris) and Damien Dornic (CPPM/CNRS) on behalf of the ANTARES Collaboration
|
Using data from the ANTARES detector, we have performed a follow-up analysis of the recently reported single track-like event IceCube-210210A (GCN #29454). The reconstructed origin was -18 degrees below the horizon for ANTARES. No up-going muon neutrino candidate events were recorded within 90% error box of the IceCube event during a +/- 1h time-window centered on the IceCube event time, and over which the potential source remained visible all time. This leads to a preliminary 90% confidence level upper limit on the muon-neutrino fluence from a point source of 16 GeV.cm^-2 over the energy range 3.5 TeV - 3.7 PeV (the range corresponding to 5-95% of the detectable flux) for an E^-2 power-law spectrum, and 40 GeV.cm^-2 (680 GeV - 355 TeV) for an E^-2.5 spectrum. A search over an extended time window of +/- 1 day has also yielded no detection (50% visibility). ANTARES [http://antares.in2p3.fr/] is the largest undersea neutrino detector (Mediterranean Sea) and it is primarily sensitive to astrophysical neutrinos in the TeV-PeV energy range. At 10 TeV, the median angular resolution for muon neutrinos is about 0.5 degrees. In the range 1-100 TeV ANTARES has a competitive sensitivity to this position in the sky.
|
2021-02-11 20:53:00
|
tev,neutrinos,transient
|
2021-02-11
|
20:53:00
| 1,224 |
[
-0.1283811628818512,
0.028843017295002937,
0.005351789761334658,
0.06835191696882248,
0.09577446430921555,
-0.07387319207191467,
-0.027594175189733505,
0.06989588588476181,
0.06927385181188583,
-0.04655883088707924,
-0.044705551117658615,
-0.07103802263736725,
-0.04951141029596329,
-0.03767174482345581,
0.033412300050258636,
-0.018052441999316216,
0.04259786009788513,
-0.040000755339860916,
-0.026374351233243942,
0.01848936825990677,
0.02128705568611622,
-0.038413312286138535,
0.00904536247253418,
0.015319437719881535,
-0.03548125550150871,
-0.05884407460689545,
0.008296956308186054,
-0.016746075823903084,
0.0016295973910018802,
0.03258173167705536,
0.05452188476920128,
0.0012798383831977844,
0.003846041625365615,
0.015166004188358784,
0.029861686751246452,
-0.060413017868995667,
0.024284647777676582,
-0.048787713050842285,
0.03861212730407715,
-0.006517305970191956,
0.09174025803804398,
0.07877643406391144,
-0.01170150563120842,
-0.013530315831303596,
-0.05065816640853882,
-0.0016939134802669287,
0.026639850810170174,
-0.07699846476316452,
-0.09844022244215012,
0.010544119402766228,
0.0001784955820767209,
0.05417073518037796,
-0.006605732720345259,
-0.0002791427541524172,
-0.007193193305283785,
0.05275207757949829,
-0.036743782460689545,
-0.11207783222198486,
0.0639231950044632,
0.014928866177797318,
-0.008323484100401402,
0.007992289029061794,
-0.015486241318285465,
-0.0424625463783741,
0.03214201331138611,
-0.02359563298523426,
-0.057104259729385376,
0.003374794963747263,
0.0487695150077343,
0.006020908709615469,
-0.000767467834521085,
0.04618396610021591,
-0.08019471913576126,
-0.10280962288379669,
-0.008347769267857075,
0.11395283043384552,
0.03455691412091255,
0.03816642612218857,
0.020686516538262367,
-0.020067814737558365,
0.006156177259981632,
-0.07130341976881027,
0.023854510858654976,
-0.05881265178322792,
0.028272701427340508,
-0.026108425110578537,
0.013070317916572094,
0.12752807140350342,
0.017872348427772522,
0.021932635456323624,
0.0011630221270024776,
-0.06294617801904678,
-0.008345662616193295,
0.06760123372077942,
0.055649396032094955,
0.08032172918319702,
0.03972373530268669,
0.012454336509108543,
0.05734286829829216,
0.038816992193460464,
0.06503502279520035,
0.02244565449655056,
0.013186678290367126,
0.0449734702706337,
-0.05510539934039116,
0.007026351056993008,
0.06187077611684799,
0.0188760869204998,
0.04094809293746948,
0.06291457265615463,
0.04376228526234627,
-0.00988646037876606,
-0.0032370570115745068,
-0.025890924036502838,
0.06358389556407928,
0.013620990328490734,
-0.11867561936378479,
0.14524920284748077,
-0.005376202054321766,
-0.022901343181729317,
-0.006577312480658293,
0.04759599268436432,
-0.01675971783697605,
0.03216055780649185,
0.02423352375626564,
0.04358593747019768,
-0.035475704818964005,
6.650756019120494e-33,
0.02656613104045391,
-0.012602537870407104,
-0.06624522060155869,
-0.04137313738465309,
0.007249173242598772,
0.07255586981773376,
-0.03895388916134834,
-0.022680236026644707,
-0.056863632053136826,
0.04868650063872337,
-0.010847697965800762,
-0.0196748785674572,
-0.016575992107391357,
0.0005240064929239452,
-0.0884624496102333,
0.019813932478427887,
0.0009168683900497854,
-0.043615587055683136,
-0.06153149902820587,
0.07702644169330597,
0.01860146038234234,
-0.030062023550271988,
-0.03284640237689018,
0.015310406684875488,
0.04703933373093605,
0.08772789686918259,
-0.08236635476350784,
0.0324380099773407,
-0.020264815539121628,
-0.018321167677640915,
0.0017207622295245528,
-0.03418014198541641,
-0.01883353479206562,
0.07218178361654282,
-0.03266661986708641,
-0.00040412729140371084,
0.02574526146054268,
-0.00473821721971035,
-0.03660149499773979,
-0.029830021783709526,
0.0542503222823143,
0.0608992800116539,
-0.013812584802508354,
-0.05587080866098404,
-0.0037983881775289774,
-0.012486865743994713,
0.049877602607011795,
0.013500500470399857,
0.03484948351979256,
0.052583739161491394,
-0.09719345718622208,
-0.01791357807815075,
-0.05154019221663475,
-0.030810631811618805,
0.03498944640159607,
-0.03926350548863411,
-0.007666249293833971,
0.05228520557284355,
0.09911505877971649,
-0.0448116734623909,
0.04703996330499649,
-0.020553622394800186,
0.03412046283483505,
-0.04073430225253105,
-0.015725621953606606,
0.10746888816356659,
-0.12448985129594803,
-0.024611035361886024,
0.028176844120025635,
0.08815421164035797,
0.03937770798802376,
0.07950867712497711,
0.004992113448679447,
-0.061748187988996506,
0.030158519744873047,
-0.042211584746837616,
0.01468232274055481,
0.009877380914986134,
0.012783007696270943,
0.07328639924526215,
-0.09742102771997452,
-0.02529396489262581,
0.035770390182733536,
0.009080620482563972,
-0.08442871272563934,
-0.008824765682220459,
-0.09969530254602432,
0.059828341007232666,
-0.027037769556045532,
0.0006004133028909564,
0.03938545659184456,
-0.016266586259007454,
-0.0021496869157999754,
0.0001995298225665465,
-0.09742164611816406,
-4.9384056840959906e-33,
0.036535948514938354,
0.04458988830447197,
0.030579663813114166,
0.03903353959321976,
-0.05303255841135979,
0.06578072160482407,
0.029136450961232185,
0.0036345990374684334,
0.009690620936453342,
-0.07876304537057877,
-0.02079922705888748,
0.004336829762905836,
0.012839894741773605,
-0.11296249181032181,
0.05096324533224106,
0.023786580190062523,
0.022672215476632118,
0.0494392104446888,
0.0796685591340065,
0.016446691006422043,
0.012254566885530949,
-0.02403346449136734,
-0.0850854218006134,
-0.027090514078736305,
0.05507177114486694,
0.04674070328474045,
0.10113788396120071,
-0.07014761865139008,
-0.01747162826359272,
-0.12785764038562775,
-0.11393600702285767,
0.08540309220552444,
-0.016514917835593224,
0.0020518479868769646,
-0.03769815340638161,
-0.009946735575795174,
0.01923518441617489,
0.024078533053398132,
-0.09825140982866287,
-0.0766068547964096,
0.033621203154325485,
0.15338651835918427,
0.012055007740855217,
0.07790055125951767,
-0.01682361774146557,
0.042156558483839035,
0.005433918908238411,
0.06379080563783646,
0.07476954907178879,
0.03720296919345856,
-0.07358793914318085,
-0.09294295310974121,
-0.029119566082954407,
0.03689898923039436,
0.027651149779558182,
0.0202567670494318,
-0.013597668148577213,
-0.00086288305465132,
-0.08588945120573044,
-0.08206413686275482,
-0.014868116937577724,
-0.021991757676005363,
-0.021829117089509964,
-0.031234564259648323,
0.06230466812849045,
0.09564923495054245,
-0.025870347395539284,
0.09511766582727432,
0.0026275827549397945,
0.03550180420279503,
0.11185002326965332,
-0.0017994970548897982,
-0.058694370090961456,
-0.07573391497135162,
-0.0061605824157595634,
0.06619491428136826,
-0.020919207483530045,
-0.1101968064904213,
0.018543053418397903,
-0.04193148389458656,
-0.058439575135707855,
0.03337353840470314,
-0.018864691257476807,
-0.05100677162408829,
0.11252651363611221,
0.05991264060139656,
-0.06532459706068039,
-0.01340295746922493,
-0.0025477437302470207,
0.020998911932110786,
-0.04409506916999817,
-0.02196078933775425,
-0.008705584332346916,
0.024782301858067513,
0.012234361842274666,
-5.5033535062420924e-8,
-0.0037783049046993256,
0.06260213255882263,
-0.03518272936344147,
0.025980334728956223,
0.052144356071949005,
-0.004678279627114534,
0.0030911900103092194,
0.005309607367962599,
-0.05419447645545006,
0.03261994943022728,
0.05612514540553093,
-0.0780756026506424,
0.021610615774989128,
-0.018580123782157898,
0.06933682411909103,
-0.0040204813703894615,
0.0305409524589777,
-0.02193671092391014,
-0.02445400319993496,
-0.005166845396161079,
0.01098177582025528,
0.02603018656373024,
0.010185359977185726,
-0.026587096974253654,
-0.0308754313737154,
0.05168766528367996,
0.00991334393620491,
0.07843323796987534,
0.05436844751238823,
-0.07854858785867691,
-0.09382011741399765,
-0.07320897281169891,
0.052787549793720245,
-0.02817716635763645,
0.048152368515729904,
-0.03612946718931198,
-0.05049516260623932,
0.0165546927601099,
0.0669444277882576,
0.009733044542372227,
0.00667728902772069,
-0.03365207090973854,
0.040337271988391876,
0.022844498977065086,
-0.0664898157119751,
0.0025720219127833843,
-0.06799782812595367,
-0.08734473586082458,
0.004399572033435106,
0.052872367203235626,
-0.013530152849853039,
0.044991135597229004,
-0.046132057905197144,
0.01572040468454361,
-0.03321264311671257,
0.09057652205228806,
-0.012461488135159016,
-0.011902425438165665,
-0.07086780667304993,
-0.02380818873643875,
0.08339821547269821,
-0.0738854929804802,
-0.14803647994995117,
-0.02375069260597229
] | 14,384 |
14,387 |
Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
|
G. Dimitriadis, R. J. Foley (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. Targets were supplied by ATLAS and ZTF (as reported by ALeRCE). All observations were made on 2021 Feb 11 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) Good fits with SNe Ia 91bg-like spectra ~2 weeks after maximum light. (2) The spectrum is red, with no indication of dust extinction, based on the absence of a strong NaID doublet. Some good matches with 91bg-like SNe Ia. (3) We measure an H alpha velocity of -8,300 km/s. (4) We measure an Si II 6355 velocity of -10,600 km/s.
|
2021-02-12 07:21:00
|
optical,supernovae,transient
|
2021-02-12
|
07:21:00
| 820 |
[
-0.089632548391819,
-0.01964835822582245,
0.032960373908281326,
0.029360657557845116,
0.020525269210338593,
0.03858743980526924,
-0.02831779606640339,
0.03303590416908264,
-0.00027775525813922286,
0.01120101846754551,
-0.006511181127279997,
-0.07728482037782669,
0.02125714346766472,
-0.030978981405496597,
0.04526157304644585,
-0.02853972278535366,
0.05156781151890755,
-0.05104110762476921,
0.00103121274150908,
0.007479168940335512,
0.011536159552633762,
0.05296644940972328,
-0.04091509431600571,
-0.018831199035048485,
0.06306706368923187,
-0.050885435193777084,
-0.020570581778883934,
-0.08233585953712463,
-0.020788751542568207,
-0.029734313488006592,
0.02955903299152851,
0.012324181385338306,
-0.07818498462438583,
0.08179429173469543,
0.06240732967853546,
-0.034423165023326874,
0.030504215508699417,
-0.04041397571563721,
0.029289623722434044,
0.0176402535289526,
0.01525798812508583,
-0.05946967750787735,
-0.01609986461699009,
-0.022219151258468628,
0.03442353382706642,
0.018290279433131218,
-0.00338320666924119,
-0.02559359185397625,
-0.10634775459766388,
0.004884240683168173,
-0.014034224674105644,
0.004299623426049948,
0.04616950452327728,
0.03205464407801628,
0.07968661189079285,
0.06308817863464355,
-0.03447490930557251,
-0.0888882726430893,
0.10280304402112961,
-0.10109386593103409,
0.05653062090277672,
-0.06452544033527374,
-0.024894407019019127,
-0.08556884527206421,
0.02890729159116745,
0.04990122467279434,
-0.016733825206756592,
-0.10510923713445663,
0.12916232645511627,
-0.008376061916351318,
-0.02891189604997635,
0.03503449633717537,
0.013826839625835419,
0.020791953429579735,
-0.0012618834152817726,
-0.038305893540382385,
0.11041542142629623,
0.042856767773628235,
-0.011961882002651691,
-0.094368577003479,
0.0867893397808075,
-0.0394139364361763,
-0.04847759008407593,
-0.011972300708293915,
0.04502111300826073,
0.008226634003221989,
-0.03643936291337013,
0.096650630235672,
-0.06481537967920303,
-0.011374536901712418,
-0.021360114216804504,
-0.02804032526910305,
-0.037830110639333725,
-0.061607636511325836,
0.0194575022906065,
-0.000009188169315166306,
-0.009134817868471146,
-0.03561211749911308,
0.07753835618495941,
0.04439760744571686,
0.10687566548585892,
0.006876051425933838,
-0.07098798453807831,
0.060456614941358566,
-0.04825498163700104,
0.017054615542292595,
0.05153254419565201,
-0.00899376068264246,
-0.027209585532546043,
0.017712509259581566,
0.12296898663043976,
0.004223056137561798,
-0.02056317776441574,
-0.10446314513683319,
-0.000012631372555915732,
0.06207126006484032,
-0.064341701567173,
0.08534714579582214,
-0.06111876666545868,
-0.009653267450630665,
0.00909640733152628,
0.039068032056093216,
0.015377837233245373,
0.03540235385298729,
0.07375940680503845,
0.026691844686865807,
-0.03363800793886185,
5.7402816451368915e-33,
0.0680319219827652,
0.051415786147117615,
-0.08185829222202301,
-0.0021734146866947412,
-0.007993721403181553,
-0.014225492253899574,
-0.10182620584964752,
0.026770850643515587,
-0.011083265766501427,
-0.03063749335706234,
-0.06132674962282181,
0.009030899032950401,
-0.02880399115383625,
-0.07054495066404343,
-0.05668066442012787,
0.027230750769376755,
0.04487229138612747,
0.004787180107086897,
-0.09093015640974045,
0.02509443275630474,
-0.05749926716089249,
0.020044835284352303,
-0.018195776268839836,
0.0249813012778759,
0.06071404740214348,
0.031867615878582,
0.04405491054058075,
-0.025248227640986443,
-0.0011299856705591083,
0.03001480922102928,
-0.012585916556417942,
0.041954003274440765,
-0.01750052720308304,
0.03197633847594261,
-0.05507965385913849,
-0.014147670939564705,
-0.0757899284362793,
0.03300317004323006,
0.04979780316352844,
-0.053052641451358795,
0.007963145151734352,
0.0659455880522728,
-0.07150072604417801,
0.019030123949050903,
0.00785770919173956,
-0.056001435965299606,
-0.05516993626952171,
0.04050002247095108,
0.061508987098932266,
0.02610325999557972,
0.004779542796313763,
-0.08328785002231598,
-0.026280056685209274,
0.026187514886260033,
-0.019504418596625328,
0.012113015167415142,
0.048990216106176376,
-0.017858386039733887,
0.023764798417687416,
0.08094271272420883,
0.09716261178255081,
-0.04302920773625374,
0.05395219847559929,
0.016235457733273506,
-0.002473335014656186,
0.07097428292036057,
-0.053473569452762604,
0.04614858701825142,
-0.03592405095696449,
0.006428362336009741,
0.011193260550498962,
0.07764684408903122,
0.10324917733669281,
-0.07749602198600769,
0.06768112629652023,
-0.07039077579975128,
0.03920097276568413,
0.042888205498456955,
-0.0441315732896328,
0.06129081919789314,
-0.042757198214530945,
-0.06319886445999146,
0.0007189485477283597,
-0.029036635532975197,
-0.06584323942661285,
-0.03819645941257477,
-0.022036593407392502,
0.008133815601468086,
0.004688538145273924,
-0.06323542445898056,
0.07791677117347717,
0.003853415371850133,
-0.0033449383918195963,
-0.06881850957870483,
-0.08762894570827484,
-4.37054309765496e-33,
0.07611553370952606,
0.07459225505590439,
-0.06854409724473953,
0.09711767733097076,
-0.0038879294879734516,
0.017521904781460762,
0.07650010287761688,
0.13804137706756592,
-0.1156873106956482,
-0.05407332256436348,
0.07806827127933502,
0.00685151806101203,
-0.09647740423679352,
-0.0822901502251625,
0.013687671162188053,
-0.022933902218937874,
0.03605301305651665,
-0.011692901141941547,
0.03508006036281586,
0.021099591627717018,
-0.010532590560615063,
-0.06541299819946289,
0.013800333254039288,
-0.03614127263426781,
0.01550724171102047,
0.06918754428625107,
0.02996313013136387,
0.005191104020923376,
-0.07581152766942978,
-0.03802112117409706,
-0.011491548269987106,
0.02260996401309967,
-0.025442998856306076,
0.01106687169522047,
-0.005318674258887768,
0.048653654754161835,
0.006448127329349518,
0.013053533621132374,
-0.11523418128490448,
0.0025797365233302116,
0.03987811133265495,
0.0990985855460167,
-0.027065007016062737,
0.016941145062446594,
0.0039483834989368916,
-0.007702699396759272,
0.01634650118649006,
0.0747491866350174,
0.01378556340932846,
-0.09455130249261856,
0.08288112282752991,
-0.018432417884469032,
0.02902221493422985,
0.03557834401726723,
-0.019679460674524307,
0.09979769587516785,
0.010195320472121239,
0.05373203381896019,
0.009096276015043259,
0.05697057396173477,
-0.015030433423817158,
0.017115771770477295,
-0.010053194127976894,
0.030114028602838516,
0.02190958522260189,
-0.0643504187464714,
-0.014346164651215076,
0.048223502933979034,
0.028002003207802773,
0.004470285959541798,
0.0513923279941082,
-0.01493681501597166,
-0.03215482085943222,
0.0073884460143744946,
0.07687433063983917,
0.05701524391770363,
-0.021607687696814537,
-0.03442380949854851,
0.037869714200496674,
-0.0035482277162373066,
-0.055916182696819305,
-0.022154202684760094,
0.03207790106534958,
0.039274029433727264,
0.07187805324792862,
0.030248774215579033,
-0.05238388478755951,
-0.04704361781477928,
0.025566237047314644,
-0.06286146491765976,
-0.041324906051158905,
0.005161051172763109,
-0.04707859456539154,
-0.01078763883560896,
0.06213834881782532,
-5.4816247541111807e-8,
0.03556248918175697,
-0.008926794864237309,
-0.0467546284198761,
0.03988594189286232,
0.03544604405760765,
-0.015407823957502842,
0.021294010803103447,
0.051355991512537,
0.008570804260671139,
-0.03895774483680725,
0.015593628399074078,
-0.04850948229432106,
-0.0004194067441858351,
-0.07107096165418625,
0.0456426627933979,
-0.02530609257519245,
-0.04128620773553848,
-0.025888459756970406,
-0.036145906895399094,
0.06816403567790985,
0.00934402085840702,
0.08623822033405304,
0.02792264334857464,
-0.052940718829631805,
-0.005712224170565605,
0.0736132264137268,
-0.053739339113235474,
0.08877178281545639,
0.041974086314439774,
-0.052375778555870056,
0.058937590569257736,
-0.04983013868331909,
-0.01947603188455105,
-0.03576735779643059,
-0.0640723928809166,
-0.026116084307432175,
-0.09029137343168259,
0.07632893323898315,
0.11828447133302689,
0.05986505001783371,
-0.05741322413086891,
-0.009822726249694824,
-0.021744858473539352,
0.02784913033246994,
-0.0819031223654747,
-0.008587396703660488,
-0.05486638471484184,
-0.11453894525766373,
-0.008336176164448261,
0.047922439873218536,
-0.05912885442376137,
0.007836165837943554,
-0.03874937444925308,
-0.03732527047395706,
-0.1167389452457428,
-0.035968393087387085,
0.0026903667021542788,
-0.03134731948375702,
-0.06351202726364136,
-0.009480190463364124,
0.14583712816238403,
-0.06872956454753876,
-0.10451705753803253,
0.02945232018828392
] | 14,385 |
14,388 |
Swift observation of the magnetar SGR 1935+2154 following the detection of several bursts
|
A. Borghese, F. Coti Zelati, N. Rea (ICE-CSIC, IEEC), P. Esposito (IUSS), G. L. Israel (INAF), on behalf of a larger collaboration
|
The magnetar SGR 1935+2154 emitted several hard X-ray bursts between 2021 January 27 and February 7 (GCN #29363, #29373, #29374, #29381, #29425, Atel #14359). These bursts represent the first flaring activity detected in the X-ray band since the last outburst, which started on 2020 April 27 (Borghese et al. 2020, ApJL, 902, L2; Younes et al. 2020, ApJL, 904, L21).
Here, we report the results of a Swift/XRT observation of SGR 1935+2154 performed on 2021 February 11, as soon as the source became visible again.
We measured a slight enhancement of the persistent X-ray flux. The observed flux was about 1 x 10-12 erg cm-2 s-1 (0.3-10 keV), a factor of about 2 higher than the quiescent level and a factor of about 5 lower than the flux measured at the peak of the 2020 outburst.
|
2021-02-12 20:00:00
|
x-ray,gamma ray,magnetar,soft gamma-ray repeater,transient
|
2021-02-12
|
20:00:00
| 782 |
[
-0.06483709067106247,
-0.052235789597034454,
-0.027765020728111267,
0.004546335432678461,
0.11115865409374237,
-0.03845638409256935,
-0.013200020417571068,
0.0620439387857914,
-0.024749692529439926,
-0.00921937171369791,
0.011392254382371902,
0.02744792401790619,
0.06876001507043839,
0.013998146168887615,
0.00042055780068039894,
-0.022597160190343857,
-0.03961022570729256,
-0.15190903842449188,
0.02107623592019081,
0.07642992585897446,
0.007100062910467386,
0.04190830886363983,
-0.046866171061992645,
0.011652544140815735,
0.03686784207820892,
0.019595908001065254,
-0.0215106513351202,
-0.13178546726703644,
0.002645929343998432,
-0.040401335805654526,
0.05607978254556656,
0.059837762266397476,
-0.04289090260863304,
0.02307155542075634,
0.017452968284487724,
0.025563234463334084,
0.03532511368393898,
-0.006845478899776936,
-0.010709594935178757,
-0.02305612526834011,
-0.010931667871773243,
-0.09436394274234772,
0.0403614304959774,
-0.036776140332221985,
-0.045525796711444855,
0.030293352901935577,
0.05270843952894211,
-0.06799928843975067,
-0.04927009344100952,
0.06846754252910614,
0.023666132241487503,
0.004792099818587303,
0.016643952578306198,
0.0031734807416796684,
0.12375614047050476,
-0.008112850598990917,
-0.07827574759721756,
-0.09207364916801453,
0.014768329448997974,
0.0006095775170251727,
0.014469672925770283,
0.017277054488658905,
0.013922631740570068,
-0.004839684814214706,
0.03418315574526787,
0.021306542679667473,
0.06414671987295151,
-0.013212943449616432,
0.054144036024808884,
0.004028105176985264,
0.07728385180234909,
0.06541670858860016,
-0.080134317278862,
-0.05601710081100464,
-0.04899211972951889,
0.040919315069913864,
0.09402666985988617,
-0.007752902805805206,
0.010929645970463753,
-0.05594024434685707,
0.010097617283463478,
0.033256806433200836,
-0.01606905832886696,
-0.03287486732006073,
0.0028588464483618736,
0.0036078530829399824,
0.02874789386987686,
0.04838002845644951,
0.006735396105796099,
0.10212380439043045,
0.06186724081635475,
0.030430719256401062,
-0.05772080272436142,
0.024977296590805054,
0.07405443489551544,
-0.018004953861236572,
0.06597290188074112,
-0.02891981601715088,
0.08382632583379745,
-0.0021685499232262373,
0.052243392914533615,
-0.007114911451935768,
-0.028506595641374588,
0.06323844939470291,
-0.0512910820543766,
-0.09454984217882156,
0.005074684973806143,
0.06558142602443695,
-0.09426168352365494,
0.06679009646177292,
0.03008825145661831,
-0.021677451208233833,
0.015203281305730343,
-0.07852672040462494,
0.03742604702711105,
0.0037832274101674557,
0.043504778295755386,
0.06225943565368652,
-0.08645248413085938,
-0.017731286585330963,
0.01771285943686962,
0.039662349969148636,
-0.02828504517674446,
0.03769947588443756,
0.014623521827161312,
0.012536534108221531,
-0.054624225944280624,
5.5045406611832973e-33,
0.015554521232843399,
0.040711287409067154,
-0.06668798625469208,
-0.027968522161245346,
-0.015308690257370472,
0.00800810195505619,
0.02446397952735424,
0.1265455037355423,
0.00011108440958196297,
0.027785658836364746,
-0.050700485706329346,
0.06023522838950157,
0.021371711045503616,
-0.05734815075993538,
-0.03943769261240959,
-0.0686928927898407,
0.02535809576511383,
0.0034274812787771225,
-0.1292756050825119,
-0.035513415932655334,
-0.07248526066541672,
-0.045407071709632874,
-0.059740468859672546,
0.007956153713166714,
-0.021675482392311096,
0.08456078171730042,
0.03438400849699974,
-0.03613785281777382,
-0.04820222407579422,
0.015141972340643406,
-0.02296464331448078,
-0.011216357350349426,
-0.013315388932824135,
0.0918353721499443,
0.01181484293192625,
-0.010767088271677494,
-0.016806764528155327,
-0.04082450643181801,
-0.0398879311978817,
-0.02181427925825119,
0.04394374415278435,
0.0393049418926239,
-0.054768532514572144,
-0.026870671659708023,
0.044114530086517334,
0.015550942160189152,
-0.01051914133131504,
-0.04245210438966751,
0.04306415840983391,
-0.08461768180131912,
0.01681450568139553,
0.009248761460185051,
-0.06804239004850388,
0.020751046016812325,
0.10649890452623367,
0.07861672341823578,
-0.054573237895965576,
-0.04673090577125549,
-0.018982840701937675,
0.04371530935168266,
0.029658230021595955,
0.028996054083108902,
0.018406430259346962,
0.04863118380308151,
-0.02594424970448017,
0.035433329641819,
-0.0051730601117014885,
-0.022769112139940262,
-0.03797942027449608,
0.06781160086393356,
-0.01642751507461071,
0.003090411424636841,
0.06492073088884354,
-0.11816275864839554,
0.11112777888774872,
-0.011109738610684872,
-0.01893804594874382,
0.049058638513088226,
0.03765271231532097,
0.011973734945058823,
-0.014654603786766529,
-0.052939578890800476,
0.09400522708892822,
-0.00046746880980208516,
-0.11431871354579926,
0.07243809849023819,
-0.0163068026304245,
-0.006693590432405472,
-0.01706383377313614,
0.041130635887384415,
-0.0030038899276405573,
-0.07650934904813766,
0.02068786323070526,
-0.03229302540421486,
-0.13264553248882294,
-5.854178966207909e-33,
-0.008646013215184212,
0.017475133761763573,
0.01072990708053112,
0.011832489632070065,
-0.022030672058463097,
0.02453242428600788,
0.023640327155590057,
0.10233518481254578,
-0.04217882454395294,
-0.0674077719449997,
0.04850909113883972,
0.05161387845873833,
-0.024707157164812088,
-0.050713468343019485,
0.001175388810224831,
-0.025952797383069992,
0.09450101852416992,
0.0007009850232861936,
-0.07489635050296783,
0.005398216657340527,
0.04521095007658005,
-0.015445727854967117,
0.05138091370463371,
-0.08551546931266785,
0.005833534523844719,
0.04601995274424553,
0.09885799139738083,
-0.028993986546993256,
0.025834975764155388,
-0.02030097134411335,
-0.04993448406457901,
0.010226469486951828,
-0.02973787672817707,
-0.01866988092660904,
0.007759724743664265,
-0.027101384475827217,
0.03808995336294174,
0.018782252445816994,
-0.08365467190742493,
-0.09444203227758408,
0.016363300383090973,
0.14302250742912292,
0.0171476062387228,
0.07574533671140671,
-0.02947056107223034,
0.029156317934393883,
0.02001543901860714,
0.0690944492816925,
0.0802164077758789,
0.02215217985212803,
-0.01930016279220581,
-0.0646427795290947,
-0.03458327800035477,
0.06734852492809296,
-0.05819663405418396,
-0.0017166587058454752,
0.015131138265132904,
-0.03387371078133583,
-0.02641811966896057,
0.029836194589734077,
0.016219738870859146,
-0.02241189032793045,
-0.034137338399887085,
-0.10460678488016129,
0.047839343547821045,
-0.1342206746339798,
0.030168788507580757,
0.05225254222750664,
-0.0049187722615897655,
0.041850969195365906,
0.12139678746461868,
-0.05919414758682251,
-0.07054873555898666,
-0.01041453331708908,
-0.016402557492256165,
0.06254348903894424,
-0.028815841302275658,
-0.12065450847148895,
0.0003027032653335482,
-0.04806489124894142,
0.016092762351036072,
0.07809709757566452,
0.00614292873069644,
-0.020583640784025192,
0.0720047876238823,
0.023032862693071365,
-0.024382458999753,
-0.010493962094187737,
-0.0001080660949810408,
-0.052383314818143845,
-0.06848078966140747,
-0.024793649092316628,
-0.027430027723312378,
0.013190357945859432,
0.024254310876131058,
-5.710608874665013e-8,
-0.009391509927809238,
0.10999122262001038,
-0.0700644925236702,
0.012629549019038677,
0.06885281950235367,
-0.007391579449176788,
0.0015327694127336144,
0.03376784920692444,
0.04989379271864891,
-0.022102858871221542,
0.03379350155591965,
-0.04422888532280922,
0.02528005838394165,
-0.03466925770044327,
0.032978154718875885,
-0.048578668385744095,
-0.008313959464430809,
-0.049994971603155136,
-0.037749625742435455,
-0.03733007609844208,
0.0455327183008194,
-0.024188721552491188,
0.04990469291806221,
-0.09702817350625992,
-0.039669763296842575,
0.00986839272081852,
-0.003044590586796403,
0.03014860302209854,
0.06025688722729683,
-0.06843242049217224,
-0.1204633116722107,
0.004127298016101122,
0.04926667362451553,
-0.018434107303619385,
-0.033269546926021576,
0.09594348073005676,
-0.024162624031305313,
-0.0232536680996418,
0.09142604470252991,
0.04904898628592491,
-0.006190585903823376,
-0.048176705837249756,
0.049838293343782425,
0.04936590418219566,
-0.08937351405620575,
-0.02842266485095024,
-0.044580090790987015,
-0.10113413631916046,
-0.01943420059978962,
0.00352713605388999,
0.04187309369444847,
-0.032886989414691925,
0.044424086809158325,
-0.034800488501787186,
0.0013917384203523397,
0.020981868728995323,
-0.0399298220872879,
-0.06498893350362778,
-0.00818448793143034,
0.014166667126119137,
0.0640142634510994,
-0.07967009395360947,
-0.1320640593767166,
0.032448701560497284
] | 14,386 |
14,389 |
Spectroscopic Classifications of Optical Transients with the Keck I telescope
|
M. R. Siebert, K. Taggart, R. J. Foley (UCSC)
|
We report the following classifications of optical transients from spectroscopic observations with the LRIS spectrograph on the Keck I telescope. Targets were supplied by YSE and ALeRCE (selected from the ZTF data stream). All observations were made on 2021 Feb 12 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) The spectrum has relatively weak H-beta emission with a Lorentzian profile and a FWZI of ~3000 km/s. Classified using LRIS blue side (3200-5600A). (2) We measure an Si II 6355 velocity of -7600 km/s.
|
2021-02-13 02:31:00
|
optical,supernovae,transient
|
2021-02-13
|
02:31:00
| 706 |
[
-0.024352384731173515,
-0.06690111756324768,
0.007564346771687269,
0.023462707176804543,
0.039257731288671494,
-0.003029727376997471,
0.008273936808109283,
0.05419299751520157,
0.018232403323054314,
-0.0399598553776741,
-0.01765400916337967,
-0.0570419542491436,
-0.044845063239336014,
-0.04562177136540413,
0.018984312191605568,
-0.025791103020310402,
0.04619373753666878,
-0.04818551987409592,
0.019464368000626564,
0.02903173677623272,
-0.008175247348845005,
0.042923424392938614,
-0.04762229695916176,
0.07989872992038727,
0.0508326031267643,
-0.03332290053367615,
-0.03183979168534279,
-0.03492293879389763,
-0.02553548477590084,
-0.03366885334253311,
0.0009201894863508642,
0.032323215156793594,
-0.04660561680793762,
0.08769615739583969,
0.05823468044400215,
-0.04999057576060295,
0.11439806967973709,
-0.08623399585485458,
0.025945771485567093,
-0.004875853192061186,
0.028782539069652557,
-0.0789509192109108,
-0.015142438933253288,
-0.0003081655886489898,
0.020779361948370934,
0.04170753061771393,
-0.00045850849710404873,
-0.004094317089766264,
-0.11082438379526138,
-0.0037905042991042137,
-0.007383300457149744,
0.037365347146987915,
0.034428808838129044,
0.0636214166879654,
0.023553092032670975,
0.08185770362615585,
-0.01813746802508831,
-0.10964278876781464,
0.1266622096300125,
-0.029518159106373787,
-0.01273419614881277,
-0.027929024770855904,
-0.04438015818595886,
-0.04736115038394928,
-0.02399996481835842,
0.020046982914209366,
-0.027225833386182785,
-0.07673784345388412,
0.10416563600301743,
-0.0047968667931854725,
-0.045471493154764175,
0.03779628500342369,
0.021980753168463707,
-0.018548598513007164,
0.0070969657972455025,
-0.01310059055685997,
0.13274620473384857,
0.04676232114434242,
0.04852529987692833,
-0.1331307291984558,
0.08483894169330597,
-0.01455123070627451,
-0.08170104026794434,
-0.02108730748295784,
0.026011696085333824,
-0.0037878500297665596,
-0.07459353655576706,
0.11156485974788666,
-0.04468117281794548,
-0.015568282455205917,
0.0005302993813529611,
-0.0628056675195694,
-0.06366810202598572,
-0.08283080905675888,
-0.01450700219720602,
-0.016130009666085243,
0.03654942288994789,
-0.030515819787979126,
0.10177293419837952,
0.04272152855992317,
0.04478598013520241,
-0.058762967586517334,
-0.031608883291482925,
0.08044920116662979,
-0.053036272525787354,
0.04598327726125717,
0.095286525785923,
0.014313706196844578,
0.0058785113506019115,
-0.016853254288434982,
0.062234342098236084,
-0.002387291518971324,
-0.017757080495357513,
-0.09636855870485306,
-0.01213033776730299,
0.0239087026566267,
-0.048428311944007874,
0.08427543193101883,
-0.08797889202833176,
-0.046782806515693665,
-0.0006521752802655101,
0.027378277853131294,
-0.005820151884108782,
-0.008936627767980099,
-0.0009066869970411062,
-0.0008013457409106195,
-0.08632881194353104,
4.347055251157592e-33,
0.08385980129241943,
0.07557115703821182,
-0.0710003450512886,
-0.013015955686569214,
-0.008010130375623703,
-0.012908626347780228,
-0.06306373327970505,
0.03029627911746502,
-0.02122194692492485,
-0.038670048117637634,
-0.03131648525595665,
-0.0054761734791100025,
-0.010782033205032349,
-0.06371847540140152,
-0.018215034157037735,
0.033016521483659744,
0.05747561156749725,
0.046748820692300797,
-0.11718562990427017,
0.03713911026716232,
-0.041963864117860794,
0.022109605371952057,
-0.05591553449630737,
-0.005557912867516279,
0.08040203154087067,
0.041725218296051025,
0.018061639741063118,
-0.003145878203213215,
-0.018564624711871147,
0.051648568361997604,
-0.0026167912874370813,
0.027493013069033623,
0.012727833352982998,
-0.004304428119212389,
0.0051789963617920876,
-0.034961868077516556,
-0.03634662181138992,
0.010830957442522049,
0.03206468001008034,
-0.07540342956781387,
0.002813059836626053,
0.0739772617816925,
-0.0972042977809906,
0.04530631750822067,
-0.0031171967275440693,
-0.013044833205640316,
-0.015048174187541008,
0.05140862241387367,
0.07626426219940186,
0.03344322368502617,
0.014532133005559444,
-0.0828484371304512,
-0.07586685568094254,
-0.020865904167294502,
0.0023619187995791435,
0.05315765365958214,
0.006555470172315836,
0.0012249834835529327,
0.03727110102772713,
0.06722525507211685,
0.04663196951150894,
-0.011210289783775806,
0.027066461741924286,
0.00628478592261672,
0.00990342441946268,
0.06538091599941254,
-0.04556301236152649,
0.07493601739406586,
-0.024305565282702446,
0.041886404156684875,
-0.04015602916479111,
0.09661606699228287,
0.1011529192328453,
-0.053575299680233,
0.06404097378253937,
-0.02958105131983757,
0.01102564949542284,
0.03151604160666466,
-0.06739410758018494,
0.04060601443052292,
-0.04442426562309265,
-0.06628280133008957,
0.027926279231905937,
-0.005460330285131931,
-0.05267534777522087,
0.007185041438788176,
-0.03486720100045204,
0.02814536541700363,
-0.012278981506824493,
-0.07241303473711014,
0.07790850847959518,
-0.025680748745799065,
0.01426000613719225,
-0.08346885442733765,
-0.1241106316447258,
-4.6217936275417e-33,
0.08957549929618835,
0.05538589879870415,
-0.04400283470749855,
0.04261846840381622,
-0.021518373861908913,
0.032753944396972656,
0.04450501129031181,
0.1083945482969284,
-0.10051298886537552,
-0.05072757974267006,
0.03637568652629852,
0.020778827369213104,
-0.11068502813577652,
-0.08822213113307953,
-0.005586931016296148,
-0.03680028021335602,
-0.010058156214654446,
-0.001303647761233151,
0.017148761078715324,
0.00004398313467390835,
0.018275076523423195,
-0.054191164672374725,
0.020534494891762733,
-0.043282728642225266,
-0.026243943721055984,
0.048989277333021164,
0.021681267768144608,
0.04896000772714615,
-0.06223642826080322,
-0.0518617182970047,
-0.01971176452934742,
-0.019489236176013947,
-0.022142348811030388,
-0.0782720148563385,
0.052344437688589096,
0.057140614837408066,
-0.02623223513364792,
-0.027043433859944344,
-0.0846664160490036,
-0.013757482171058655,
0.010642885230481625,
0.10039371252059937,
-0.001834621885791421,
-0.03610822558403015,
0.008938259445130825,
0.02229878678917885,
0.012122438289225101,
0.05348134785890579,
0.06984414160251617,
-0.08027733117341995,
0.05179321765899658,
-0.03181721642613411,
-0.03455766662955284,
0.062159642577171326,
-0.019620805978775024,
0.06632599234580994,
-0.0010882896604016423,
0.08443733304738998,
-0.0015976825961843133,
0.03463394567370415,
-0.02221912145614624,
0.015151657164096832,
0.0021094537805765867,
0.031898725777864456,
0.06497135013341904,
-0.09615866094827652,
-0.0051027019508183,
0.0410192646086216,
0.052821509540081024,
0.002239996800199151,
0.05690545216202736,
-0.018453311175107956,
-0.02508477494120598,
0.048322759568691254,
0.0444885790348053,
0.03285219147801399,
-0.03000696562230587,
-0.09881830960512161,
0.03412065654993057,
0.05130007490515709,
-0.009081374853849411,
-0.01477266475558281,
0.04132677987217903,
0.0531512051820755,
0.058855749666690826,
0.006458894349634647,
-0.04484664276242256,
-0.02609313279390335,
0.0232386514544487,
-0.07690443843603134,
0.0017428611172363162,
-0.0015934284310787916,
-0.029923370108008385,
-0.00821756012737751,
0.06698330491781235,
-5.580274020644538e-8,
0.06365982443094254,
0.02839311584830284,
-0.0425330214202404,
0.04073392227292061,
-0.0031800062861293554,
-0.0067265573889017105,
-0.021842947229743004,
0.028617307543754578,
0.01813029684126377,
-0.020927071571350098,
0.03135516121983528,
-0.05259394273161888,
0.029286479577422142,
-0.05996701866388321,
0.024118633940815926,
-0.04281812906265259,
-0.02536819875240326,
-0.04593062773346901,
-0.036171674728393555,
0.06921818107366562,
0.039715591818094254,
0.07727757841348648,
0.061385899782180786,
-0.04235672578215599,
0.008660241961479187,
0.028353994712233543,
-0.019365360960364342,
0.09360931813716888,
0.05123899132013321,
-0.02372126840054989,
0.038077328354120255,
-0.014066099189221859,
-0.00949675403535366,
-0.015314364805817604,
-0.05233294516801834,
0.000015567839000141248,
-0.1575326919555664,
0.08384458720684052,
0.10200800001621246,
0.07817886024713516,
-0.004248178564012051,
-0.026793822646141052,
-0.010880929417908192,
0.05160650983452797,
-0.10556528717279434,
0.000784239440690726,
-0.049663495272397995,
-0.08716005086898804,
-0.0047304509207606316,
0.024584190919995308,
-0.043419238179922104,
-0.011381104588508606,
-0.04145503044128418,
-0.06632537394762039,
-0.11835848540067673,
-0.034422360360622406,
0.006264983210712671,
-0.014649597927927971,
-0.04772327467799187,
-0.06272821873426437,
0.14501583576202393,
-0.047299034893512726,
-0.09698040783405304,
0.04150911793112755
] | 14,387 |
14,390 |
Spectroscopic and photometric confirmation of ASASSN-21au = ZTF20acyxwzf as the best candidate for a long-orbital period AM CVn star
|
Keisuke Isogai, Yusuke Tampo, Naoto Kojiguchi, Kenta Taguchi, Junpei Itoh, Masaaki Shibata, Taichi Kato (Kyoto University), Hiroshi Itoh, Katsuaki Kubotera (VSOLJ)
|
We report on spectral features seen in the transient ASASSN-21au = ZTF20acyxwzf on 2021-02-10.85 UT and 2021-02-12.85 UT obtained by using a fiber-fed integral field spectrograph (KOOLS-IFU; Matsubayashi et al. 2019) attached to one of the Nasmyth focuses of the 3.8-m telescope Seimei (Kurita et al. 2020) at Okayama Observatory of Kyoto University. Firstly, the ASAS-SN team reported that this object brightened to g = 13.3 mag on 2021-02-05.422 and that this object is a large amplitude CV. The ASAS-SN Sky Patrol has not detected any past outbursts. There is an optical counterpart of g=20.96(6), r=21.04(9), i=21.35(4), and z=20.72(17) in Pan-STARRS1. Thus, the outburst amplitude is about 8 mag, and hence this object was a good candidate for a WZ Sge-type dwarf nova. However, the outburst profile looks like a precursor + main superoutburst, which is not seen in WZ Sge stars (see ZTF). As already reported to vsnet-alert 25342 and 25369, we detected optical variations with a period of 0.04 d. This period suggests that this object is not an ordinary hydrogen-rich CV. In other words, this object can be an AM CVn star or EI Psc one. We secured an optical spectrum at V ~ 16 mag on 2021-02-10.85 UT. The spectrum (left panels) shows only a blue continuum and no clear lines. For convenience, we indicate the position of Balmer lines and He I ones as pink dashed lines and blue dotted ones, respectively. Two days later, we obtained another optical spectrum at V ~ 13.7 mag on 2021-02-12.85 UT. The spectrum (right panels) shows a blue continuum with He I absorption lines. We indicate the position of Balmer lines as pink dashed lines, but there are no clear signals. Although the chemical composition should be estimated by using a spectrum in quiescence, considering our photometric and spectroscopic results, this object is the best candidate for an AM CVn star. If this object is certainly an AM CVn star, this object has the longest orbital period in outbursting AM CVn stars. Continuous time-series photometry is very important.
|
2021-02-13 06:58:00
|
optical,cataclysmic variable,nova,star,transient,variables
|
2021-02-13
|
06:58:00
| 2,043 |
[
-0.04805639013648033,
-0.015546908602118492,
0.06379086524248123,
0.07691449671983719,
0.046331748366355896,
-0.0847366526722908,
-0.031209558248519897,
0.01834096573293209,
0.007223188877105713,
-0.037321869283914566,
-0.01886424422264099,
-0.07110965251922607,
-0.01304269302636385,
-0.031012913212180138,
0.061936330050230026,
0.025064848363399506,
0.09530231356620789,
-0.0762939602136612,
-0.03274499252438545,
-0.002141770673915744,
0.01878342591226101,
0.059397194534540176,
-0.03780427202582359,
0.020911507308483124,
0.07312560081481934,
-0.01726091466844082,
-0.03905053809285164,
-0.05281412973999977,
0.05313947796821594,
-0.02979107014834881,
-0.0011693069245666265,
0.05676216632127762,
-0.07522749155759811,
0.036916572600603104,
0.05872627720236778,
-0.020401090383529663,
0.04612088203430176,
-0.0890374705195427,
-0.0187547504901886,
0.018730666488409042,
0.06181376054883003,
-0.04564255103468895,
-0.01602979749441147,
-0.06013234332203865,
0.005720979068428278,
-0.04441732540726662,
0.018731985241174698,
-0.0829400047659874,
-0.020939014852046967,
-0.007927058264613152,
-0.008887878619134426,
-0.025075264275074005,
-0.00006427359767258167,
0.03358949348330498,
0.04433208703994751,
0.07503557205200195,
-0.04710899665951729,
-0.039455596357584,
0.07479210942983627,
0.003046127501875162,
0.00368219125084579,
-0.008545770309865475,
0.011876589618623257,
-0.060295045375823975,
0.06498017907142639,
0.037035029381513596,
-0.027968773618340492,
-0.10527126491069794,
0.03517967090010643,
-0.045488391071558,
-0.02771870233118534,
-0.017319973558187485,
-0.007024194113910198,
-0.011551732197403908,
-0.023351924493908882,
0.058451052755117416,
0.09566099941730499,
0.02817569673061371,
0.061441294848918915,
-0.054663050919771194,
0.053422048687934875,
-0.03309804946184158,
0.004938406404107809,
-0.025058675557374954,
0.02879706397652626,
0.022886032238602638,
-0.03567652404308319,
0.06292508542537689,
-0.03759970888495445,
0.0025092733558267355,
0.002169853774830699,
-0.04914049059152603,
-0.09501884877681732,
-0.0190097838640213,
-0.03337661921977997,
-0.03562232479453087,
0.025869207456707954,
-0.0008406501729041338,
0.02626136504113674,
0.10193890333175659,
0.07518550753593445,
0.004557203035801649,
-0.07207012176513672,
0.07497867941856384,
-0.07249987870454788,
0.04170452430844307,
0.06995999068021774,
0.04124694690108299,
-0.04009484127163887,
0.02587233856320381,
0.034393493086099625,
0.010319674387574196,
-0.03969551995396614,
-0.10146377980709076,
-0.022779172286391258,
0.08326953649520874,
-0.05591341853141785,
0.10912974178791046,
-0.10466311872005463,
-0.006490208208560944,
0.011303837411105633,
-0.011203211732208729,
0.017482254654169083,
0.12124083191156387,
0.03409653902053833,
0.028504613786935806,
-0.07471159845590591,
7.523829468938793e-33,
0.06897833198308945,
0.035832617431879044,
-0.019865944981575012,
-0.04901064932346344,
-0.002870528493076563,
0.008971644565463066,
-0.04310843348503113,
0.08737310767173767,
-0.012782770209014416,
-0.03592133894562721,
-0.027739224955439568,
0.057192303240299225,
0.04192686825990677,
-0.004820318892598152,
0.020438915118575096,
-0.12140574306249619,
0.052822500467300415,
0.014419753104448318,
-0.09224629402160645,
0.0069418055936694145,
-0.02525283396244049,
0.017210476100444794,
-0.023596642538905144,
-0.009744352661073208,
0.001621625036932528,
0.047522082924842834,
0.037170324474573135,
0.05970510095357895,
-0.01412609126418829,
0.03466736152768135,
0.04093055799603462,
-0.011501803994178772,
-0.03757532685995102,
-0.01440670806914568,
-0.011746232397854328,
-0.0900794118642807,
-0.039506945759058,
-0.008037223480641842,
-0.0575256422162056,
-0.0746099054813385,
-0.022768983617424965,
0.08438488095998764,
-0.07022831588983536,
-0.0007998293731361628,
-0.0016421113396063447,
-0.025113161653280258,
0.03250546008348465,
0.01168376300483942,
0.062045272439718246,
-0.005725523456931114,
-0.020358430221676826,
-0.03237016871571541,
-0.09731501340866089,
-0.026840291917324066,
0.05397588759660721,
0.04045550897717476,
0.05657092109322548,
-0.029086966067552567,
0.01705137826502323,
-0.007628858555108309,
0.03811352327466011,
-0.05628712847828865,
-0.009345349855720997,
-0.02661973424255848,
-0.03983880579471588,
0.12378748506307602,
-0.04644264280796051,
0.04037469998002052,
-0.025767918676137924,
0.015348657965660095,
-0.02022293396294117,
0.11443598568439484,
0.003416910767555237,
-0.01997968554496765,
0.06750499457120895,
-0.07313408702611923,
0.007777033839374781,
0.06604243069887161,
-0.008392578922212124,
0.04366762563586235,
-0.06905224174261093,
-0.048946041613817215,
0.06129661202430725,
-0.03913590684533119,
-0.06766464561223984,
-0.019956078380346298,
-0.027204962447285652,
0.02613445185124874,
-0.04571740701794624,
-0.07027719169855118,
0.06974944472312927,
0.0056262025609612465,
0.01127620693296194,
-0.04986202344298363,
-0.15665805339813232,
-6.895386679102182e-33,
0.042279068380594254,
0.04314061254262924,
-0.07255052775144577,
-0.013797229155898094,
-0.022069917991757393,
-0.004776395857334137,
0.04254484921693802,
0.12879414856433868,
-0.09053968638181686,
-0.07383064925670624,
0.05901002883911133,
0.03320467472076416,
-0.03166865184903145,
-0.07910183072090149,
0.015862975269556046,
-0.023372573778033257,
-0.02996431663632393,
-0.0242316834628582,
-0.01068919152021408,
0.010234559886157513,
0.0538896806538105,
-0.010921661742031574,
0.03753887489438057,
-0.05869002640247345,
-0.03448696807026863,
0.06492455303668976,
0.031105907633900642,
-0.061158306896686554,
-0.07314776629209518,
0.02260434813797474,
-0.08547067642211914,
0.0002025024004979059,
-0.048302799463272095,
0.0024489194620400667,
0.006102589424699545,
0.058672141283750534,
0.043724216520786285,
-0.11301812529563904,
-0.10758353769779205,
-0.04051206260919571,
-0.046259310096502304,
0.14696764945983887,
0.0442904457449913,
0.04550090804696083,
-0.0661613866686821,
0.019517315551638603,
-0.014712182804942131,
0.0998225212097168,
-0.008444243110716343,
-0.029473187401890755,
0.03393658623099327,
-0.0054899295791983604,
0.03108801692724228,
0.03120778501033783,
-0.03764347359538078,
0.06541544944047928,
0.052189212292432785,
-0.00624088803306222,
-0.03944411501288414,
0.026282643899321556,
0.034296825528144836,
-0.017985068261623383,
-0.002202021423727274,
-0.015463653951883316,
0.08039229363203049,
0.018273992463946342,
0.0375276654958725,
0.0058664483949542046,
0.05874363332986832,
0.034737784415483475,
0.12492181360721588,
-0.04664316028356552,
-0.10299277305603027,
-0.007313265465199947,
0.06703799962997437,
0.02949579432606697,
0.007118436973541975,
-0.022255167365074158,
-0.017811927944421768,
0.0006496926653198898,
-0.02656513825058937,
-0.005725360009819269,
-0.012105860747396946,
0.03774930536746979,
0.0783970057964325,
-0.011121039278805256,
-0.03977365046739578,
-0.08595076948404312,
-0.0029059366788715124,
-0.0009017456904985011,
-0.03602847456932068,
0.006284489296376705,
-0.056336309760808945,
0.08850914984941483,
0.08604425191879272,
-6.379745798312797e-8,
-0.03719133138656616,
-0.001588264130987227,
-0.07811881601810455,
0.014492305926978588,
0.06832876801490784,
-0.06696442514657974,
-0.008774896152317524,
-0.00416075112298131,
-0.005571543704718351,
-0.009277873672544956,
0.032166413962841034,
-0.01725715585052967,
-0.027716487646102905,
-0.04433942958712578,
0.0662381500005722,
-0.09079466015100479,
-0.02443001978099346,
-0.03186804801225662,
-0.023388853296637535,
0.06778392195701599,
0.060027264058589935,
0.03224195912480354,
0.04818600043654442,
-0.024628791958093643,
0.06498128175735474,
0.05823669955134392,
-0.054873138666152954,
0.12943442165851593,
0.042757462710142136,
0.022740302607417107,
0.010918961837887764,
-0.011587285436689854,
0.04656265303492546,
-0.028936242684721947,
-0.05508072301745415,
0.02596612460911274,
-0.13376547396183014,
0.04330860450863838,
0.035852573812007904,
0.08097904175519943,
0.008755455724895,
-0.03175872936844826,
0.033721331506967545,
0.048734139651060104,
0.02572817914187908,
0.04052023962140083,
0.030691005289554596,
-0.09819220006465912,
-0.005341898184269667,
-0.0061591146513819695,
-0.02755194529891014,
-0.04765995591878891,
-0.01597917079925537,
0.0014549673069268465,
-0.10776862502098083,
-0.0702260285615921,
0.007138778455555439,
-0.05515608191490173,
-0.022338079288601875,
0.0205040592700243,
0.11858245730400085,
-0.04127681255340576,
-0.07132155448198318,
0.020468316972255707
] | 14,388 |
14,391 |
Strong increase in the brightness of the radio quasar Ton 0599
|
Lukas Waller, Niels Bader, Erik Heidemann, Felix Hemrich, Johannes Knoett, Alexander Lessing, Jonas Ludwig, Dario Rapisardi, David Reinhart, Lukas Schneider, Kilian Schoch, Remco Steineke, Dirk Seifert, Jonas Seufert, Nils Zottmann, Martin Feige, Christian Lorey (all Friedrich-Koenig-Gymnasium / Hans-Haffner-Sternwarte), Lukas Kunkel, Adrian Scherbantin, Karl Mannheim (all Universitaet Wuerzburg), Dominik Elsaesser (TU Dortmund)
|
We report an increase in the brightness of the flat-spectrum radio quasar Ton 0599 (PKS 1156+295; 4C 29.45; z=0.72 - RA: +11:59:31.83 DEC: +29:14:43.83, J2000) since December 2020, observed at the Hans-Haffner-Observatory. During this period, the brightness in the R band increased from 16.55 (25.12.20 23:11 - JD 2459209.5080) to 14.32 (14.02.21 03:16 - JD 2459259.6783). This quasar last reached such brightness levels in the period from November 2017 to May 2018 (ATel#10938; ATel#10948; ATel#11624). The measurements during the last 2 nights show a relatively fast increase of brightness by 0.5 mag (R-band). Due to the wintry weather during the last weeks, we could not monitor this quasar even more closely R - band magnitudes: JD 2459147.6505: 16.94 ± 0.04 JD 2459160.6648: 16.40 ± 0.04 JD 2459209.5080: 16.55 ± 0.03 JD 2459225.5863: 15.08 ± 0.01 JD 2459227.5581: 15.05 ± 0.01 JD 2459234.5585: 14.68 ± 0.02 JD 2459258.5468: 14.87 ± 0.01 JD 2459259.6110: 14.45 ± 0.01 JD 2459259.6783: 14.32 ± 0.01 V - band magnitudes: JD 2459147.6552: 17.30 ± 0.05 JD 2459160.6693: 16.78 ± 0.04 JD 2459209.5126: 16.90 ± 0.04 JD 2459225.5909: 15.43 ± 0.01 JD 2459227.5627: 15.43 ± 0.01 JD 2459234.5631: 15.00 ± 0.02 JD 2459258.5514: 15.23 ± 0.01 JD 2459259.6155: 14.82 ± 0.01 JD 2459259.6829: 14.71 ± 0.01 B - band magnitudes: JD 2459147.6599: 18.31 ± 0.06 JD 2459160.6739: 17.38 ± 0.06 JD 2459209.5172: 17.46 ± 0.06 JD 2459225.5955: 15.938 ± 0.01 JD 2459227.5673: 15.90 ± 0.01 JD 2459234.5677: 15.52 ± 0.02 JD 2459258.5560: 15.71 ± 0.01 JD 2459259.6201: 15.30 ± 0.01 JD 2459259.6874: 15.22 ± 0.01 These measurements are carried out as part of the long-term AGN monitoring program of the Naturwissenschaftliches Labor fuer Schueler am Friedrich-Koenig-Gymnasium (FKG), the Universitaet Wuerzburg, and TU Dortmund with the 0.5 m telescope at the school and university observatory Hans-Haffner-Sternwarte in Hettstadt (Germany). As the weather outlook for the next nights will probably not allow further measurements at the Hans-Haffner-Observatory, we encourage further monitoring of this source.
|
2021-02-15 02:12:00
|
radio,optical,agn,black hole,blazar,quasar
|
2021-02-15
|
02:12:00
| 2,084 |
[
-0.049735479056835175,
-0.02468160167336464,
-0.039279088377952576,
0.07137806713581085,
0.028044015169143677,
-0.05405934527516365,
-0.053241465240716934,
0.11421844363212585,
-0.00991279911249876,
0.032991841435432434,
-0.09620543569326401,
-0.06079951673746109,
0.005647557787597179,
-0.003514269832521677,
0.09228985011577606,
-0.015400879085063934,
0.08509988337755203,
-0.13264532387256622,
-0.0295924823731184,
-0.06015883386135101,
-0.06568318605422974,
0.050138432532548904,
-0.034519072622060776,
0.010803068988025188,
0.13518358767032623,
-0.055771391838788986,
-0.04262620583176613,
-0.07021702080965042,
0.00993064884096384,
0.019790032878518105,
0.01203216053545475,
0.05954473838210106,
0.05298550799489021,
0.023740271106362343,
-0.06852324306964874,
-0.04314613342285156,
0.018021250143647194,
-0.025944581255316734,
0.019449690356850624,
0.038226399570703506,
-0.01330568827688694,
-0.009447736665606499,
0.029757672920823097,
-0.035450443625450134,
-0.11032366752624512,
-0.04179501533508301,
-0.05120893940329552,
0.025757256895303726,
-0.09881927073001862,
0.0003954996936954558,
0.09723113477230072,
0.03578660264611244,
-0.034676384180784225,
0.07778789103031158,
-0.006444672588258982,
0.027965271845459938,
-0.06949540227651596,
-0.06990738958120346,
0.08966302126646042,
-0.014228181913495064,
-0.040013764053583145,
0.019942352548241615,
-0.03426801785826683,
-0.048016440123319626,
0.023358112201094627,
0.00630167918279767,
-0.06467200070619583,
-0.06825608015060425,
0.02970772795379162,
-0.013192901387810707,
0.03583800420165062,
-0.01275310106575489,
-0.007426650729030371,
-0.05927718058228493,
0.0038032159209251404,
0.04560637101531029,
0.1053270623087883,
-0.005208004266023636,
-0.0013610210735350847,
-0.0533415861427784,
0.039868731051683426,
0.028631551191210747,
-0.04747927933931351,
-0.04150741919875145,
0.027732672169804573,
-0.018460245802998543,
0.0023637667763978243,
0.03669540584087372,
-0.06852391362190247,
-0.0010845676297321916,
0.05703216791152954,
-0.02197721228003502,
-0.10850740969181061,
0.01667807437479496,
-0.055213481187820435,
0.015540986321866512,
0.008491442538797855,
-0.04150819778442383,
0.01567486859858036,
0.03853669390082359,
0.06710094958543777,
-0.07150320708751678,
-0.03560338914394379,
0.014647354371845722,
-0.05552072823047638,
0.0368216373026371,
0.04089095816016197,
0.07915478944778442,
-0.07841426879167557,
-0.0003004429745487869,
0.04549321532249451,
0.003566894680261612,
-0.016390161588788033,
-0.03856338933110237,
0.013408022932708263,
0.02789599634706974,
0.010415025055408478,
0.11551420390605927,
-0.14865311980247498,
0.04568852484226227,
-0.010795539245009422,
0.011536243371665478,
0.011184745468199253,
0.037368226796388626,
0.05320192128419876,
-0.014788771979510784,
-0.009172194637358189,
1.1228207428355285e-32,
0.018910354003310204,
0.0028324739541858435,
-0.04324781522154808,
-0.036805108189582825,
0.05929676443338394,
0.014834619127213955,
-0.09236469864845276,
0.07633490115404129,
-0.011424272321164608,
0.004479445517063141,
-0.03327813372015953,
0.06416400521993637,
-0.0187987070530653,
-0.06697315722703934,
-0.007505625952035189,
-0.022968821227550507,
-0.016391588374972343,
-0.0025266159791499376,
-0.09238500148057938,
0.01144755445420742,
-0.0748228058218956,
0.06505655497312546,
-0.029568903148174286,
0.05347766727209091,
0.06661321967840195,
0.10911715775728226,
0.042545005679130554,
-0.004538022913038731,
-0.011717253364622593,
0.006716562435030937,
0.008662236854434013,
0.020651735365390778,
0.007671019062399864,
-0.00870116800069809,
-0.03529832139611244,
-0.024800900369882584,
0.006643061991780996,
0.0056077162735164165,
-0.05630716681480408,
-0.023005569353699684,
0.04318322613835335,
0.0653710663318634,
-0.03568679839372635,
0.04600737988948822,
0.017417024821043015,
0.010694908909499645,
0.035336319357156754,
0.04154224693775177,
0.03331689164042473,
0.07229752838611603,
-0.06781179457902908,
-0.05896099656820297,
-0.04143171384930611,
0.03745701164007187,
0.04984979331493378,
0.028393562883138657,
0.02405625954270363,
-0.00681262044236064,
0.03904234990477562,
-0.03385908156633377,
0.02577858231961727,
0.03294641897082329,
0.031643737107515335,
-0.04595012217760086,
-0.018955079838633537,
0.01183218415826559,
0.0460277758538723,
0.0037395369727164507,
-0.053012359887361526,
0.03824546933174133,
0.03963479399681091,
0.006464013829827309,
0.054237864911556244,
-0.029199419543147087,
0.07926636934280396,
-0.012437609024345875,
0.0529891662299633,
0.06843503564596176,
0.022942613810300827,
0.008081747218966484,
-0.04774334281682968,
0.005720128305256367,
0.08501163870096207,
-0.03762960806488991,
-0.00744421174749732,
-0.028696972876787186,
-0.04073112830519676,
0.013653531670570374,
-0.04509066045284271,
-0.041278526186943054,
0.032287389039993286,
0.049521688371896744,
0.012127183377742767,
-0.02497337944805622,
-0.11412094533443451,
-9.715573950877473e-33,
0.06149134784936905,
0.008766818791627884,
-0.04357478767633438,
0.05562247708439827,
0.02581816539168358,
-0.03323400393128395,
-0.0032852119766175747,
0.10272234678268433,
-0.05465792492032051,
-0.06066018342971802,
0.09948081523180008,
0.007324654143303633,
-0.05847165361046791,
-0.030148595571517944,
0.060298774391412735,
-0.12879016995429993,
0.04761924967169762,
0.08951807022094727,
-0.0991571843624115,
0.030833914875984192,
0.012610125355422497,
-0.04320497065782547,
0.011281252838671207,
-0.06355297565460205,
0.0024613752029836178,
-0.013779259286820889,
0.054331012070178986,
0.019898511469364166,
-0.03579118102788925,
-0.005221231374889612,
-0.10687606036663055,
0.050709981471300125,
-0.04617757722735405,
-0.06985887140035629,
0.0789487361907959,
0.02789578214287758,
0.1215420737862587,
0.012748446315526962,
-0.15283408761024475,
-0.03272518143057823,
0.02515478804707527,
0.18128599226474762,
0.00535614276304841,
0.0064188893884420395,
-0.06707705557346344,
-0.015083969570696354,
-0.006700129248201847,
0.043700508773326874,
-0.03069872409105301,
-0.041493020951747894,
0.09420498460531235,
-0.05022662878036499,
0.025324059650301933,
0.0959092527627945,
-0.04083646461367607,
0.051552802324295044,
0.06888461858034134,
0.030651889741420746,
0.014816034585237503,
-0.0006598349427804351,
-0.05688318610191345,
-0.0045295413583517075,
-0.05813789367675781,
-0.03518861159682274,
0.06099434942007065,
-0.04578712582588196,
0.05596484616398811,
0.041480902582407,
0.02881590463221073,
0.01960624009370804,
0.037594638764858246,
-0.1507597416639328,
-0.03797696530818939,
-0.000055219497880898416,
0.021983427926898003,
0.02330474555492401,
0.005967614706605673,
-0.07047907263040543,
0.008283150382339954,
-0.0042350441217422485,
-0.034890856593847275,
-0.01682836189866066,
0.017988065257668495,
-0.028005631640553474,
0.0208868570625782,
0.008171269670128822,
-0.02600976638495922,
-0.06687762588262558,
-0.05076266825199127,
0.05820116400718689,
-0.03282534331083298,
0.024268576875329018,
-0.03712188079953194,
-0.005851922556757927,
0.053516194224357605,
-6.798917695505224e-8,
-0.018220998346805573,
-0.004490724299103022,
-0.06304442137479782,
0.0280697550624609,
0.0891399011015892,
-0.026143163442611694,
0.037197545170784,
-0.040045786648988724,
-0.056809864938259125,
0.08118189126253128,
0.060527898371219635,
-0.011691351421177387,
0.026859154924750328,
-0.04140312597155571,
0.05429375544190407,
0.022548703476786613,
-0.04066997393965721,
-0.023319536820054054,
0.011121576651930809,
0.033131193369627,
0.024391721934080124,
0.05294811353087425,
0.046249743551015854,
-0.07198614627122879,
0.0636650025844574,
0.07985297590494156,
0.012337771244347095,
0.051908399909734726,
0.03440558910369873,
-0.031055720522999763,
0.03502267971634865,
0.008378146216273308,
0.02814069390296936,
-0.02471330761909485,
-0.03381466493010521,
-0.016597993671894073,
-0.06817174702882767,
0.02403620444238186,
0.02675062045454979,
0.09520334750413895,
-0.04853196069598198,
0.006526704411953688,
-0.005148752126842737,
0.03115103952586651,
-0.058140046894550323,
-0.02484693005681038,
-0.013445504009723663,
-0.005237984005361795,
-0.030067458748817444,
-0.03728404641151428,
-0.005028333514928818,
-0.0075499010272324085,
-0.027995232492685318,
-0.13026519119739532,
-0.06930337101221085,
-0.10457851737737656,
0.0550658218562603,
0.016124622896313667,
-0.08692577481269836,
-0.004873298574239016,
0.062883660197258,
-0.08012457191944122,
-0.08914385735988617,
0.02030058763921261
] | 14,389 |
14,392 |
Renewed activity of X-ray binary pulsar A 0535+262 detected by Swift/BAT, MAXI/GSC, and Fermi/GBM
|
Manoj Mandal (MCC), Sabyasachi Pal (ICSP/MCC), Mangal Hazra (MCC), Bikram Bhunia (MCC)
|
We report renewed activity from the accreting transient X-ray pulsar A 0535+262 (V725 Tau) using Swift/BAT (15-50 keV) and MAXI/GSC (2-20 keV). The source was earlier reported to be in X-ray outburst several times (viz. ATel #504, #2142, #2161, #2324, #2541, #2970, #6043, #6569, #7015, #14157). Recently the source went through a giant outburst in November-December, 2020 and reached a record high value of ~12 Crab (ATel #14157, #14170). The observed spin period of the X-ray pulsar during the giant outburst was ~103.58 s (Mandal & Pal, 2020, arXiv:2012.15839).
The X-ray flux from the source started to increase from MJD 59249 (4th February 2021) and it is still increasing as detected in hard X-ray by Swift/BAT (15-50 keV) and reached a value of 70±6.3 mCrab on MJD 59259. The enhanced X-ray activity is also detected by MAXI/GSC (2-20 keV) from MJD 59248.5 and continues to rise. On MJD 59257.5, the Flux in MAXI/GSC in 2-20 keV is 44.4±8.2 mCrab and in 4-10 keV is 56.10±11.6 mCrab. The hardness ratio (4-10 keV/2-4 keV) varies between 0.6-1.5 during time-range MJD 59247-59257.
The enhanced X-ray activity from the source was also detected by Fermi/GBM (12-50 keV). The pulsed flux has started to increase from MJD 59252 and reached a maximum value of ~0.23 keV/cm2/s on MJD 59256. The spin period is ~103.507 s on MJD 59256 as measured by Fermi/GBM.
We encourage further multi-wavelength observations.
This research has made use of the MAXI data provided by RIKEN, JAXA, and the MAXI team.
|
2021-02-15 20:07:00
|
x-ray,binary,pulsar,transient,request for observations
|
2021-02-15
|
20:07:00
| 1,503 |
[
-0.09583009034395218,
-0.017734330147504807,
-0.020249612629413605,
0.002360078040510416,
0.03610285371541977,
-0.049407750368118286,
-0.020977212116122246,
0.05834219232201576,
-0.03622167184948921,
0.025173725560307503,
0.010281027294695377,
-0.027698753401637077,
0.061965461820364,
-0.026042047888040543,
-0.03070550411939621,
0.014978214167058468,
-0.04052237048745155,
-0.10933171957731247,
0.055071063339710236,
0.050820671021938324,
-0.02307840622961521,
0.0509638674557209,
-0.13278761506080627,
0.029379863291978836,
-0.005598270334303379,
0.008807267993688583,
-0.054981671273708344,
-0.12951481342315674,
0.005487796850502491,
-0.08536016941070557,
0.0017597370315343142,
0.06407295167446136,
-0.01329952385276556,
0.012455505318939686,
0.011102399788796902,
0.05577808991074562,
-0.030508067458868027,
-0.03448464348912239,
-0.026430753991007805,
-0.041297636926174164,
-0.04443339630961418,
-0.011133368127048016,
0.03607137128710747,
-0.01642775349318981,
-0.06117110699415207,
-0.008978104218840599,
0.04790929704904556,
-0.06057751551270485,
-0.0038948135916143656,
0.04959492385387421,
0.025128671899437904,
-0.004620259627699852,
-0.003923170268535614,
-0.032878972589969635,
0.07791486382484436,
-0.07776342332363129,
-0.09490630030632019,
-0.11887753754854202,
0.041424524039030075,
-0.04395321011543274,
0.026559526100754738,
0.04873999208211899,
0.006303711328655481,
-0.005071753170341253,
0.025043116882443428,
-0.02091871201992035,
0.03479867801070213,
-0.05144263431429863,
0.035553187131881714,
0.05818214267492294,
0.07337051630020142,
0.05791480839252472,
-0.015801740810275078,
-0.07434996217489243,
-0.029480846598744392,
0.017687810584902763,
0.054040905088186264,
-0.0575716532766819,
0.026962988078594208,
-0.07871569693088531,
-0.04299870878458023,
0.07007715106010437,
0.014242692850530148,
-0.06438372284173965,
-0.0068266200833022594,
0.06269364804029465,
-0.023896418511867523,
0.06929885596036911,
-0.013703915290534496,
0.11975599825382233,
0.11844508349895477,
0.06928145885467529,
-0.0316329263150692,
0.014368286356329918,
0.08860775828361511,
-0.016778022050857544,
0.04939548671245575,
0.006440838798880577,
0.0592636801302433,
-0.014058861881494522,
0.045954976230859756,
0.04229288548231125,
-0.03150196000933647,
-0.00551207410171628,
-0.02338200807571411,
-0.10080253332853317,
0.029227983206510544,
0.03479539975523949,
-0.06314276903867722,
0.0622687004506588,
-0.01929311826825142,
0.07059300690889359,
-0.021253885701298714,
-0.06977155059576035,
0.04323720559477806,
0.050138093531131744,
0.00024188304087147117,
-0.022770186886191368,
-0.08702614158391953,
-0.04173557087779045,
-0.02861318737268448,
0.012006139382719994,
-0.06994334608316422,
0.058261431753635406,
-0.004759784322232008,
-0.03598684445023537,
-0.048629701137542725,
5.6268905213206966e-33,
0.02100527100265026,
0.03942640498280525,
0.021091053262352943,
-0.03338359668850899,
-0.042867761105298996,
-0.00330274342559278,
-0.0304995346814394,
0.029457993805408478,
0.03692026436328888,
0.023948531597852707,
-0.08339798450469971,
0.03773995488882065,
0.0197464469820261,
-0.07862520962953568,
-0.0029715474229305983,
-0.09337641298770905,
0.010665163397789001,
0.054510585963726044,
-0.1122865155339241,
-0.005414052866399288,
-0.029925432056188583,
-0.056729335337877274,
-0.0779135599732399,
-0.004062903579324484,
-0.00975704938173294,
0.11369451135396957,
0.03639960661530495,
-0.033980440348386765,
-0.09071331471204758,
0.03408736735582352,
-0.017442094162106514,
-0.0225397776812315,
-0.011797686107456684,
0.08599108457565308,
-0.027178514748811722,
-0.017564117908477783,
-0.037048932164907455,
0.00339346076361835,
-0.04492665082216263,
0.018017200753092766,
0.08754418045282364,
0.011449373327195644,
-0.08909318596124649,
0.010941329412162304,
0.04190293699502945,
0.009250295348465443,
-0.038827601820230484,
0.02656101994216442,
-0.050893768668174744,
-0.03930187597870827,
0.027149077504873276,
0.020548934116959572,
-0.043712325394153595,
-0.0012049551587551832,
0.06453727185726166,
0.08678068965673447,
0.04467670992016792,
-0.05176946148276329,
-0.042593929916620255,
0.11009209603071213,
0.10188819468021393,
0.012799487449228764,
0.014610418118536472,
0.06245473399758339,
-0.018198182806372643,
0.04237944260239601,
-0.018810786306858063,
-0.010531465522944927,
-0.038983672857284546,
0.05881476402282715,
-0.04044700786471367,
-0.032812658697366714,
0.04725885018706322,
-0.08003769814968109,
0.08272478729486465,
-0.03150879964232445,
-0.049681950360536575,
0.07617553323507309,
-0.04043670743703842,
0.08101891726255417,
-0.0629819929599762,
-0.0395733118057251,
0.07667005062103271,
-0.08293876051902771,
-0.05138098821043968,
0.04972910135984421,
0.05052950605750084,
0.026285452768206596,
0.009301635436713696,
0.06981728225946426,
0.010304016061127186,
-0.0860244408249855,
0.04274093732237816,
-0.04816165938973427,
-0.08071254193782806,
-5.81053543235577e-33,
-0.014274154789745808,
-0.05337625369429588,
0.032827507704496384,
0.023721490055322647,
-0.018797660246491432,
0.04704676568508148,
0.013970714993774891,
0.11820625513792038,
-0.062476735562086105,
-0.10236716270446777,
0.007665916346013546,
0.09819559752941132,
-0.050646647810935974,
-0.044986266642808914,
0.06161969155073166,
0.04233735054731369,
0.07167129218578339,
0.008956286124885082,
-0.06902813911437988,
-0.008561347611248493,
0.01446885708719492,
-0.017969554290175438,
0.057157717645168304,
-0.04609784856438637,
0.0001260907738469541,
0.05587471276521683,
0.05991026386618614,
-0.02607540972530842,
0.06550499051809311,
0.027544420212507248,
-0.03790857270359993,
0.013622323051095009,
0.0015683185774832964,
0.059448957443237305,
-0.041847992688417435,
-0.032561808824539185,
0.02350531332194805,
0.03449946269392967,
-0.07416993379592896,
-0.04929874464869499,
0.02144448459148407,
0.12617717683315277,
-0.007819153368473053,
0.06290179491043091,
-0.031961336731910706,
0.06656882911920547,
0.04908660054206848,
0.03871901333332062,
0.05531994253396988,
-0.03290099650621414,
0.030103635042905807,
-0.06776759028434753,
0.067184217274189,
0.05290879309177399,
-0.010602379217743874,
0.04253320023417473,
-0.03296631574630737,
-0.030778417363762856,
0.005631595384329557,
-0.058348312973976135,
-0.0004046224639751017,
-0.011067246086895466,
-0.0406947061419487,
-0.06900463998317719,
0.02930850349366665,
-0.08855967968702316,
0.045814987272024155,
-0.0019035969162359834,
-0.014304679818451405,
-0.021712621673941612,
0.027791278436779976,
-0.04517577588558197,
-0.07540979236364365,
0.027137985453009605,
-0.04135308414697647,
0.06408784538507462,
0.014451545663177967,
-0.07690725475549698,
0.04029114544391632,
-0.05160870775580406,
-0.08935133367776871,
0.08512749522924423,
0.004663118626922369,
-0.014216730371117592,
0.06858367472887039,
0.04500528797507286,
-0.03063715621829033,
-0.01085023581981659,
0.03280407935380936,
-0.05099032074213028,
-0.06141387298703194,
0.01256945077329874,
-0.04506457597017288,
-0.01131451316177845,
0.05527458339929581,
-5.4172790697748496e-8,
-0.020367778837680817,
0.0357353538274765,
-0.04954782873392105,
0.047828976064920425,
0.08344084769487381,
0.009908984415233135,
-0.04082217440009117,
0.01618346758186817,
0.07424705475568771,
0.014063465408980846,
0.014000884257256985,
0.013173412531614304,
0.08597127348184586,
-0.07030155509710312,
-0.017232125625014305,
-0.0065883551724255085,
0.021445490419864655,
-0.07227136939764023,
0.009484647773206234,
-0.01894025132060051,
-0.03346950560808182,
-0.004097066819667816,
0.0406283400952816,
-0.027305252850055695,
-0.04307474195957184,
0.060958683490753174,
0.03677333518862724,
0.03284355625510216,
0.043268103152513504,
-0.027609599754214287,
-0.06057598814368248,
-0.008699239231646061,
-0.02419518493115902,
-0.04539499059319496,
0.027260370552539825,
0.0886281281709671,
-0.02319817990064621,
-0.013616712763905525,
0.10701067000627518,
0.06906992197036743,
-0.020193016156554222,
-0.04381624236702919,
0.055138856172561646,
0.04222588241100311,
-0.09690764546394348,
0.006446478888392448,
-0.07740245759487152,
-0.053159940987825394,
0.012525411322712898,
-0.053911201655864716,
-0.002232835628092289,
0.015227195806801319,
0.040735870599746704,
-0.0895526260137558,
-0.017348770052194595,
0.07869964838027954,
-0.02200598083436489,
-0.08052178472280502,
0.012750312685966492,
0.03302011638879776,
0.08712118119001389,
-0.08592106401920319,
-0.08839210867881775,
0.05751222372055054
] | 14,390 |
14,393 |
Radio detection of the hydrogen-poor super-luminous supernova SN 2017ens at 3.6 years post explosion
|
Deanne L. Coppejans (Northwestern U.), David Matthews (Northwestern U.), Raffaella Margutti (Northwestern U.), Giacomo Terreran (Northwestern U.), Edo Berger (Harvard U.), Tarraneh Eftetkhari (Harvard U.), Tanmoy Laskar (U. Bath), Matt Nicholl (U. Birmingham), Michael Bietenholz (SARAO/Hartrao and York U.), Kate D. Alexander (Northwestern U.), Wynn Jacobson-Galan (Northwestern U.), Peter K. Blanchard (Northwestern U.)
|
We report the first radio detection of the supernova (SN) 2017ens. The object was initially spectroscopically classified as a hydrogen-poor, broad-line Ic SN. Unusually for this class though, the transient quickly reached a peak luminosity of -21.1 mag in g-band (Chen et al. 2018), more typical of super-luminous supernovae (SLSNe). This is the second hydrogen-poor SLSN detected at radio wavelengths (the first was iPTF10hgi, see Eftekhari et al. 2019). We observed SN 2017ens on 28 January 2021 with the NSF's Karl G. Jansky Very Large Array (VLA) with program VLA/20B-144 (PI: Matthews). We detected an unresolved radio source within one synthesized beamwidth of the optical position. The emission is optically thin at 6 GHz. Here we report the preliminary flux density:
We note that SN 2017ens was not detected in our earlier 6 GHz observations taken at ~2 months and ~5 months post explosion (VLA/17A-480, PI: Coppejans and VLA/17B-225, PI: Margutti). At these epochs we obtained 3-sigma upper-limits of 36 and 20 uJy/beam respectively. The brightening at radio wavelengths at 3.6 years post explosion may be produced by the interaction of the blastwave with a dense circumstellar environment. This is in agreement with optical observations of SN 2017ens that indicate that there is interaction with a dense hydrogen-rich circumstellar environment at this phase (Chen et al. 2018).
We are conducting further multi-band observations. We thank the VLA for scheduling these observations.
|
2021-02-16 04:21:00
|
radio,optical,supernovae,transient
|
2021-02-16
|
04:21:00
| 1,492 |
[
-0.08814769983291626,
-0.059945691376924515,
-0.0316147580742836,
0.0646689236164093,
0.0543302446603775,
0.008968906477093697,
-0.02999257855117321,
0.05470834672451019,
-0.04425390437245369,
-0.053983718156814575,
-0.029462004080414772,
0.017783721908926964,
-0.0006663580425083637,
0.0044748177751898766,
-0.032440077513456345,
-0.06826148182153702,
0.1097181960940361,
-0.15431402623653412,
-0.026650557294487953,
0.04678031802177429,
0.018260108307003975,
0.0069576711393892765,
-0.020243128761649132,
0.033835362643003464,
0.06486975401639938,
0.005544528365135193,
-0.024801380932331085,
-0.05248221382498741,
-0.01598939672112465,
0.029718691483139992,
0.08313917368650436,
0.08736258745193481,
0.04661756381392479,
0.07131327688694,
0.013815697282552719,
-0.029891328886151314,
0.060154445469379425,
-0.03171871230006218,
0.00208302796818316,
-0.030976861715316772,
0.02709566056728363,
-0.08790957182645798,
-0.03476256504654884,
-0.010776874609291553,
-0.08307240158319473,
-0.03865262120962143,
-0.04726366698741913,
-0.0935547798871994,
-0.09218749403953552,
-0.02374737337231636,
0.048305924981832504,
-0.06836538016796112,
0.04620307311415672,
0.049720603972673416,
0.06390544027090073,
0.03308805078268051,
-0.038805361837148666,
-0.0801101103425026,
0.09466946870088577,
-0.027443375438451767,
-0.01620233617722988,
-0.06032194197177887,
-0.010939699597656727,
-0.07501745969057083,
0.07099060714244843,
0.04158348962664604,
-0.008387967012822628,
-0.044728998094797134,
0.03555823117494583,
0.024068735539913177,
0.03445605933666229,
0.06391512602567673,
-0.047219548374414444,
0.0316619798541069,
-0.0034627087879925966,
0.04206103831529617,
0.12246115505695343,
0.04509038105607033,
0.06627301126718521,
-0.07542289793491364,
0.049995481967926025,
-0.0030827841255813837,
0.0027196938171982765,
-0.05167868360877037,
0.02460121363401413,
0.025167671963572502,
-0.029593458399176598,
0.08737190067768097,
-0.041054584085941315,
-0.01229502446949482,
-0.03279440104961395,
-0.00830941740423441,
-0.06281193345785141,
-0.006397598423063755,
-0.010199886746704578,
0.08813208341598511,
0.045233022421598434,
-0.06452436745166779,
0.0426909476518631,
0.030551403760910034,
0.10456978529691696,
0.020029226318001747,
-0.04920018091797829,
0.012735122814774513,
-0.02586113102734089,
-0.017115937545895576,
0.045025743544101715,
0.07394828647375107,
-0.03234264627099037,
0.032794587314128876,
0.07208507508039474,
-0.017298800870776176,
-0.01673668436706066,
-0.07094676047563553,
-0.004575452301651239,
0.011880407109856606,
0.013433355838060379,
0.15979474782943726,
-0.10406454652547836,
-0.0027198027819395065,
-0.033327337354421616,
0.07650086283683777,
-0.016854867339134216,
0.0307844839990139,
0.07018207758665085,
0.071109838783741,
-0.10667581111192703,
4.3471683924888586e-33,
0.08505719155073166,
0.046033747494220734,
-0.039901819080114365,
0.008971195667982101,
-0.02313908375799656,
-0.025574343279004097,
-0.0827954038977623,
0.0790344700217247,
-0.037379827350378036,
0.014313357882201672,
-0.041016627103090286,
0.037732549011707306,
0.014940552413463593,
-0.039630476385354996,
-0.04707083851099014,
0.023109594359993935,
-0.0030488227494060993,
-0.031010983511805534,
-0.09782452881336212,
-0.001638284302316606,
-0.09107240289449692,
0.008946135640144348,
0.03463790565729141,
-0.0491703636944294,
0.012833786197006702,
-0.024874314665794373,
0.040313925594091415,
-0.009521222673356533,
0.08085186034440994,
0.01812250167131424,
-0.05156685411930084,
-0.044036805629730225,
0.01163104735314846,
0.06929012387990952,
-0.011994445696473122,
-0.029216472059488297,
-0.041335541754961014,
0.01735829934477806,
-0.06799143552780151,
-0.051297497004270554,
0.08519728481769562,
0.05157111585140228,
-0.05187273770570755,
0.06593205034732819,
0.07962434738874435,
-0.010823266580700874,
0.019542574882507324,
-0.002642314648255706,
0.0039435760118067265,
0.028264205902814865,
-0.05142950639128685,
-0.0018443787703290582,
-0.08615978062152863,
-0.013054830953478813,
0.03140081837773323,
0.07068478316068649,
0.06165008991956711,
0.0409390963613987,
0.05765953287482262,
-0.006824132055044174,
0.04816093295812607,
0.025025956332683563,
0.002908974187448621,
0.06355983018875122,
-7.875240157773078e-7,
0.0347290001809597,
-0.0749339684844017,
0.03508424013853073,
-0.02281760796904564,
0.006830116733908653,
0.0064977300353348255,
0.04343431442975998,
0.14196597039699554,
-0.023066138848662376,
0.08216814696788788,
-0.029857276007533073,
0.07248147577047348,
-0.003834982169792056,
0.03102058358490467,
0.04099785163998604,
-0.0632457360625267,
-0.04158460348844528,
0.07534309476613998,
-0.06062272563576698,
-0.10995649546384811,
-0.04493474215269089,
-0.09336882829666138,
-0.03332759812474251,
-0.016736814752221107,
-0.0330018475651741,
-0.001715079415589571,
-0.0019202110124751925,
0.01954732835292816,
-0.04579505696892738,
-0.09608470648527145,
-4.351085727412974e-33,
0.03665490821003914,
0.04230938479304314,
-0.002675636438652873,
0.013027781620621681,
0.012449806556105614,
0.03423559293150902,
-0.02747436985373497,
0.0006941786268725991,
-0.08262888342142105,
-0.05577710643410683,
0.1134876012802124,
0.03363126143813133,
-0.04054278880357742,
-0.11529213935136795,
0.03385624662041664,
-0.02274833247065544,
0.016318470239639282,
0.005174162331968546,
0.030773911625146866,
-0.039144366979599,
0.03915955498814583,
0.017526058480143547,
-0.010201155208051205,
0.07018820196390152,
-0.01131528802216053,
-0.033038023859262466,
0.08170820772647858,
0.014998259022831917,
-0.009426317177712917,
0.021270163357257843,
-0.03168066218495369,
0.018554765731096268,
-0.021910419687628746,
0.00914693996310234,
0.007511729374527931,
0.03825387731194496,
0.06437373906373978,
0.033002208918333054,
-0.13345342874526978,
0.0009950277162715793,
-0.035760536789894104,
0.05979286879301071,
-0.02167203277349472,
0.04440419748425484,
-0.008224311284720898,
-0.004382546525448561,
-0.01585954613983631,
0.03663422167301178,
0.030542414635419846,
0.0064394595101475716,
-0.01670541614294052,
-0.08881006389856339,
-0.07933582365512848,
0.0585758276283741,
-0.027770033106207848,
0.024710098281502724,
0.02611456625163555,
0.05460072308778763,
-0.025290850549936295,
-0.004728198051452637,
0.05285552144050598,
-0.0437856987118721,
-0.027442065998911858,
-0.017874253913760185,
0.024717826396226883,
-0.0544184073805809,
0.02496793307363987,
0.028525101020932198,
0.034163907170295715,
-0.001569364801980555,
0.021039504557847977,
-0.09207469969987869,
-0.07182016223669052,
-0.004979300312697887,
0.04593316465616226,
0.04213079437613487,
-0.0016432638512924314,
-0.0604417584836483,
-0.013173267245292664,
-0.058318108320236206,
0.035932090133428574,
0.02059689350426197,
-0.04394277185201645,
-0.005535695236176252,
0.13101448118686676,
0.023295452818274498,
0.013601752929389477,
-0.017578918486833572,
-0.08421193808317184,
-0.06184128299355507,
-0.010885738767683506,
0.017812103033065796,
-0.06621574610471725,
-0.01856265775859356,
0.05758599564433098,
-6.146294140307873e-8,
0.022511744871735573,
0.02264520339667797,
-0.03512153401970863,
0.0004866016679443419,
0.034302547574043274,
-0.0347946435213089,
0.025213824585080147,
0.03399667143821716,
0.046455398201942444,
0.02065974846482277,
-0.07346922159194946,
-0.08638159185647964,
-0.0030094729736447334,
-0.06926882266998291,
0.06915340572595596,
-0.02794579602777958,
-0.06575684249401093,
-0.014712754637002945,
-0.0472293421626091,
0.046768855303525925,
0.06782972067594528,
0.030634265393018723,
0.027477717027068138,
-0.04007808864116669,
-0.017637314274907112,
-0.05139293149113655,
0.05806709825992584,
0.06768310815095901,
0.021844686940312386,
-0.11103671789169312,
-0.03334525227546692,
0.0015297809150069952,
0.01614518091082573,
-0.03332178667187691,
0.00443931482732296,
0.06473980844020844,
0.0020666152704507113,
0.031406957656145096,
0.08923891186714172,
0.10267899185419083,
-0.009642613120377064,
-0.01831955648958683,
-0.010637548752129078,
-0.019087890163064003,
-0.0839921087026596,
0.0029311857651919127,
0.021685434505343437,
0.0025669862516224384,
0.02952653169631958,
0.033081308007240295,
0.012692820280790329,
-0.014198430813848972,
-0.03483456000685692,
-0.12400490790605545,
-0.06156224012374878,
0.036910440772771835,
-0.011612250469624996,
-0.04205155372619629,
-0.04468051344156265,
0.006148065440356731,
0.14152564108371735,
-0.05121007561683655,
-0.1086471900343895,
0.040365975350141525
] | 14,391 |
14,394 |
The flux of 2S1417-624 is still rising
|
J. Knies, S. Saeedi (ECAP/FAU), V. Doroshenko (IAAT), A. Semena, A. Lutovinov, I. Mereminskiy, S. Molkov (IKI), I. Kreykenbohm, P. Weber, J. Wilms (ECAP/FAU), A. Santangelo (IAAT)
|
On 2021-02-09 (MJD 59254.92) during the third consecutive all-sky survey, the eROSITA and Mikhail Pavlinsky ART-XC instruments on board the SRG observatory detected renewed activity from the X-ray pulsar 2S 1417-624 (RA: 215.303 deg, Dec: -62.699 deg), as also already reported based on Swift, MAXI, and GBM data (ATel #14349). The source started to brighten in the second week of January 2021. BAT, GBM, and MAXI lightcurves suggest that this trend continues (http://integral.esac.esa.int/bexrbmonitor/Plots/sim_plot_2S1417-624.html), which explains the relatively high flux observed by SRG.
In particular, the source was detected in eight consequent eROSITA scans with a stable count rate of 6.87(+/-0.15) counts/s. Assuming an absorbed powerlaw, we obtain an absorbed flux of 4.11(+/-0.2)E-10 (erg/s/cm^2) and unabsorbed flux of 3.66(+/-0.14)E-10 (erg/s/cm^2) in the 0.5-10.0 keV energy band. The source was also detected with high significance up to 20keV with ART-XC, with a 4-12keV flux of 7.46(+/-0.37)e-10 cgs and an indication of steepening above 10keV.
The SRG-measured flux is comparable to the estimate based on the current (MJD 59256) SWIFT/BAT count rate of ~0.02cps which implies broadband flux of ~2e-9 cgs (assuming the count-rate to flux conversion factor of 1.13E-7 cgs reported by Ji et al, 2019, MNRAS, 491, 1851). Assuming same spectral model as the above paper, the flux observed by SRG implies a broadband flux of ~2e-9 cgs in the 0.5-100keV band. For an assumed distance of 10kpc (Ji et al, 2019, MNRAS, 491, 1851), this corresponds to a luminosity of 2.4e37 erg/s.
We note that current flux is by a factor of three lower than the expected peak flux, and thus the outburst is still in its rising phase. Based on the observed flux evolution in previous outbursts it is expected to peak some time mid-March 2021, although we note that the three earlier outbursts showed rather different light curves and there is a large uncertainty in the expected outburst peak time, rate, duration of the outburst, and possibly other parameters.
Further multi-wavelength monitoring is encouraged.
|
2021-02-16 23:17:00
|
x-ray,binary,neutron star,pulsar,star
|
2021-02-16
|
23:17:00
| 2,109 |
[
-0.015915829688310623,
-0.029825881123542786,
-0.0018493117531761527,
0.1051306426525116,
0.08776643872261047,
-0.05501016229391098,
0.009558700025081635,
0.02802269347012043,
0.0007106861448846757,
0.07155173271894455,
0.009025895968079567,
-0.02120305225253105,
0.030587512999773026,
0.013459397479891777,
0.03752846643328667,
0.07131104916334152,
-0.06438776850700378,
-0.16603761911392212,
-0.011639728210866451,
0.01795252598822117,
0.015220731496810913,
-0.013041351921856403,
-0.04265401512384415,
0.011222041212022305,
-0.025526609271764755,
-0.009589198045432568,
-0.035344190895557404,
-0.05527498945593834,
0.02298162505030632,
0.0007197531522251666,
0.00582364434376359,
0.09425060451030731,
0.0536888912320137,
0.01799812726676464,
0.02607436664402485,
0.015118591487407684,
0.05172191560268402,
-0.04500899091362953,
-0.05637352913618088,
0.03194417059421539,
-0.015787510201334953,
-0.08787373453378677,
-0.04873829334974289,
-0.024944482371211052,
-0.07426992058753967,
0.03868819400668144,
0.022366411983966827,
-0.06013305112719536,
-0.09777547419071198,
0.03516334295272827,
0.06480152904987335,
-0.010369904339313507,
0.0038349973037838936,
0.013864661566913128,
0.08978194743394852,
-0.033848755061626434,
-0.0955737978219986,
-0.018665079027414322,
0.11002597957849503,
-0.03389357775449753,
-0.015010562725365162,
0.05716854706406593,
-0.0600179061293602,
-0.03115931712090969,
0.04425649344921112,
-0.009825360029935837,
-0.03989170119166374,
-0.02130848728120327,
0.04278989136219025,
0.00527821434661746,
0.07205380499362946,
0.004509398248046637,
-0.020176837220788002,
-0.0476490780711174,
-0.07311277836561203,
0.05834319815039635,
0.09933841973543167,
-0.024499641731381416,
0.05036250874400139,
-0.1315431445837021,
0.005119715817272663,
-0.006330918055027723,
-0.0012790488544851542,
0.022429702803492546,
0.06581085175275803,
0.017458969727158546,
-0.016238192096352577,
0.06417611241340637,
-0.05344269052147865,
0.08454611897468567,
0.08791401982307434,
0.01997891254723072,
-0.0601358488202095,
0.07356573641300201,
-0.009196757338941097,
0.0332869254052639,
0.04079202935099602,
-0.008456948213279247,
0.04677300900220871,
-0.008491518907248974,
0.031439829617738724,
-0.044182516634464264,
-0.03166944161057472,
0.039837222546339035,
-0.0010739064309746027,
-0.058061543852090836,
0.029994312673807144,
0.06903368979692459,
-0.055975623428821564,
0.0015231885481625795,
0.02366340346634388,
0.007014627102762461,
0.014398365281522274,
-0.02750549465417862,
-0.013135482557117939,
0.0417088083922863,
0.01813286915421486,
0.03321562707424164,
-0.08004209399223328,
0.0025126461405307055,
0.024019666016101837,
0.04105200991034508,
-0.0038697149138897657,
0.11761322617530823,
0.07315085083246231,
-0.002343544038012624,
-0.02500353381037712,
5.218984063351778e-33,
0.05540391430258751,
-0.002063572173938155,
-0.026758883148431778,
-0.034487053751945496,
-0.01231211144477129,
0.02773750014603138,
-0.005105080548673868,
0.03659924119710922,
0.002337113255634904,
-0.01457162480801344,
-0.01788884960114956,
0.09260685741901398,
0.016841884702444077,
-0.05728335678577423,
0.010734050534665585,
-0.08731403201818466,
0.04981238767504692,
0.024425528943538666,
-0.12110643088817596,
0.03725994750857353,
-0.07442936301231384,
-0.027905812487006187,
-0.0648808628320694,
0.00933650229126215,
-0.011144071817398071,
0.10410453379154205,
0.02763325907289982,
-0.0333651639521122,
-0.033424608409404755,
0.023863956332206726,
0.04679229483008385,
0.05041207745671272,
-0.006505691912025213,
0.06814614683389664,
-0.06004069745540619,
0.002325459849089384,
-0.008036315441131592,
0.020602067932486534,
-0.06415735930204391,
-0.05479157716035843,
-0.020610006526112556,
0.05428764224052429,
-0.0374617874622345,
-0.033689841628074646,
0.03548875451087952,
-0.011722210794687271,
-0.037747301161289215,
-0.0006799967959523201,
-0.004196475259959698,
0.012425389140844345,
-0.04046734422445297,
0.006187849212437868,
-0.0824974998831749,
-0.017961082980036736,
0.014643032103776932,
0.11445125192403793,
0.030068574473261833,
-0.02535303309559822,
0.02845741994678974,
0.017625806853175163,
0.059481799602508545,
0.006588278338313103,
-0.009253359399735928,
0.03165751323103905,
0.02475857175886631,
0.023007601499557495,
-0.012461921200156212,
0.00620786938816309,
-0.14018356800079346,
0.06883999705314636,
0.004890867508947849,
0.013438278809189796,
0.040728598833084106,
-0.07861015945672989,
0.0483846589922905,
-0.04923513904213905,
0.0015249148709699512,
0.09086407721042633,
-0.0155927250161767,
0.03761361166834831,
-0.04055977612733841,
0.0028894871938973665,
0.05165036395192146,
-0.07847316563129425,
-0.0709482952952385,
-0.00031296047382056713,
-0.0044488622806966305,
0.032224833965301514,
-0.08604687452316284,
0.04208992049098015,
0.07047752290964127,
-0.0662824809551239,
0.02231372334063053,
-0.037009384483098984,
-0.12227769196033478,
-5.1612672907264035e-33,
0.023586397990584373,
0.013940980657935143,
-0.026752088218927383,
0.0377529114484787,
0.03586467728018761,
0.045893244445323944,
0.0010585547424852848,
0.06758935004472733,
-0.05850420519709587,
-0.05285577476024628,
0.12593750655651093,
0.05233709514141083,
-0.09128347039222717,
-0.018544098362326622,
0.024170629680156708,
-0.006536886561661959,
0.06639113277196884,
0.0710160955786705,
-0.10424532741308212,
-0.024120409041643143,
-0.024256384000182152,
0.031024066731333733,
0.04494286701083183,
-0.054716773331165314,
-0.042467810213565826,
0.028041908517479897,
0.06979194283485413,
0.018692005425691605,
-0.008179528638720512,
-0.009548483416438103,
-0.12418097257614136,
0.07712209224700928,
-0.045642755925655365,
-0.003915253560990095,
-0.009473340585827827,
0.0041384147480130196,
0.04610670730471611,
-0.004332296084612608,
-0.09411024302244186,
0.018818510696291924,
0.020302671939134598,
0.10650883615016937,
0.04474543035030365,
0.03767520561814308,
-0.04444143921136856,
0.07374534010887146,
-0.0006504637422040105,
0.0604722835123539,
-0.00940374843776226,
-0.01887120120227337,
0.02474135346710682,
-0.06628682464361191,
-0.07848633825778961,
0.08156193792819977,
-0.0588422529399395,
-0.003125736489892006,
-0.011817491613328457,
0.003585036611184478,
-0.09510713815689087,
-0.03306996449828148,
0.020179428160190582,
0.01673504337668419,
-0.06822074949741364,
-0.05541999265551567,
0.037907734513282776,
-0.05019742250442505,
0.018381578847765923,
0.03381620720028877,
0.06924135237932205,
-0.015196169726550579,
0.10457056760787964,
-0.11387954652309418,
-0.11220002919435501,
-0.02530495636165142,
-0.06080380082130432,
0.0010906526586040854,
-0.06316298246383667,
-0.07937512546777725,
0.013551710173487663,
-0.06023816764354706,
-0.057674508541822433,
0.032635584473609924,
0.043305784463882446,
0.029288925230503082,
0.013245861977338791,
-0.021423961967229843,
-0.036287859082221985,
-0.0084244254976511,
-0.052062563598155975,
-0.026961276307702065,
-0.08258635550737381,
-0.003925969358533621,
-0.05762390047311783,
0.020673776045441628,
0.037559978663921356,
-6.541134922599667e-8,
-0.08868283778429031,
0.015583910048007965,
-0.09984057396650314,
0.03218936175107956,
0.0913119688630104,
-0.08558154106140137,
0.03454182296991348,
0.0696801245212555,
0.05608070641756058,
0.01694435067474842,
0.03175210952758789,
-0.013281059451401234,
0.07695232331752777,
-0.09287374466657639,
0.058759286999702454,
0.01504009123891592,
0.04289015009999275,
-0.09435082226991653,
-0.021834472194314003,
-0.013923116028308868,
-0.017268523573875427,
-0.012313233688473701,
0.03082120604813099,
0.00033033464569598436,
-0.012446565553545952,
0.06939078867435455,
-0.013916981406509876,
0.05321216583251953,
0.07412625104188919,
-0.032555289566516876,
0.014478935860097408,
-0.012672845274209976,
0.05706237629055977,
-0.042832668870687485,
0.008704178035259247,
0.04321994632482529,
-0.022275079041719437,
-0.012479652650654316,
0.04858602583408356,
0.08954025059938431,
-0.03017750196158886,
-0.07243876904249191,
0.01035065297037363,
0.049787018448114395,
-0.05519096180796623,
-0.010658234357833862,
-0.02403763122856617,
-0.07396811246871948,
0.025918427854776382,
-0.014658873900771141,
-0.013415195047855377,
-0.009964292868971825,
0.015274319797754288,
-0.0788746252655983,
-0.05586627498269081,
-0.026748226955533028,
0.021238287910819054,
-0.01253567636013031,
0.003855674061924219,
-0.01605478674173355,
0.11324310302734375,
-0.09293155372142792,
-0.10714191198348999,
0.038709912449121475
] | 14,392 |
14,395 |
Upper limits on the continuum radio emission of SGR J1935+2154 from uGMRT observations
|
Mayuresh Surnis (JBCA, University of Manchester), Benjamin Stappers (JBCA, University of Manchester), Fabian Jankowski (JBCA, University of Manchester), Kaustubh Rajwade (JBCA, University of Manchester), Manisha Caleb (JBCA, University of Manchester), Bhal Chandra Joshi (NCRA-TIFR), Manjari Bagchi (IMSc)
|
Following a series of recent X-ray bursts (GCN #29363, #29373, #29374, #29381, #29425 and ATEL #14359), we observed SGR J1935+2154 with the upgraded Giant Metrewave Radio Telescope (uGMRT) at two epochs. Here we report on the results from the analysis of the interferometric data. These observations were carried out in band-3 (300-500 MHz) on 2020 February 5, 07:00 UT and band-4 (550-750 MHz) on 2020 February 6, 08:15 UT for an on-source time of about 90 minutes. We observed the nearby millisecond pulsar PSR B1937+21 as a test pulsar.
We made radio images of the associated supernova remnant (SNR) G57.2+00.8 at both bands. The synthesized beam size of the band-3 image is about 7.5" x 5.3" with a beam position angle of -84.5 degree while that of the band-4 image is about 5.8" x 3.6" with a beam position angle of 82.2 degree. The SNR images at both the bands are available at the link below. We do not detect any continuum emission at the position of the magnetar with 3-sigma flux density upper limits of 315 microJy and 105 microJy at 400 and 650 MHz, respectively. These limits are more stringent than what we reported during the May 2020 outburst (ATEL #13769, #13777, #13799). An ultra-bright burst like the one detected by The CHIME/FRB Collaboration et al. 2020 (700 kJy ms fluence) would have been detectable in our images, even after averaging over the total observing duration. A recent search for such ultra-bright bursts contemporaneous with X-ray bursts also resulted in a non-detection (ATEL#14382). We are currently analyzing the beamformed, high time-resolution data to search for any periodic emission or relatively fainter single pulses.
We thank the staff of the GMRT who have made these observations possible. GMRT is run by the National Centre for Radio Astrophysics of the Tata Institute of Fundamental Research.
|
2021-02-17 02:00:00
|
radio,x-ray,fast radio burst,magnetar,neutron star,pulsar,star,supernova remnant,supernovae,transient
|
2021-02-17
|
02:00:00
| 1,844 |
[
-0.028228528797626495,
-0.0569256953895092,
-0.030119258910417557,
-0.009769612923264503,
0.04295893386006355,
-0.06458155065774918,
-0.06186814233660698,
0.034930355846881866,
-0.06433691084384918,
-0.02244126796722412,
-0.017022114247083664,
-0.022721828892827034,
0.04108322784304619,
-0.026917574927210808,
0.043795716017484665,
-0.053599875420331955,
-0.00009711232996778563,
-0.15454551577568054,
0.00396756874397397,
-0.025391636416316032,
-0.0546875,
0.016483474522829056,
-0.0655682235956192,
-0.03725310042500496,
0.08077099919319153,
-0.033974599093198776,
-0.03220437094569206,
-0.07315744459629059,
0.009291384369134903,
0.0016971159493550658,
0.04310468211770058,
0.06534767150878906,
-0.004166013095527887,
0.012653411366045475,
-0.011343236081302166,
0.02845904231071472,
0.05985657870769501,
-0.04227437824010849,
-0.021128417924046516,
-0.03859283775091171,
-0.02265501581132412,
-0.08250820636749268,
0.014213237911462784,
-0.026760127395391464,
-0.02217896096408367,
-0.009417717345058918,
-0.011303475126624107,
-0.033567942678928375,
-0.10423310846090317,
0.052360475063323975,
0.017864614725112915,
0.0005219834274612367,
0.02892114408314228,
0.04785705730319023,
0.07618838548660278,
-0.0480182021856308,
-0.11719296127557755,
-0.02895732782781124,
0.07064372301101685,
0.023222483694553375,
-0.014301029033958912,
-0.0035373864229768515,
-0.06888571381568909,
-0.06282394379377365,
0.04093508794903755,
0.008899692445993423,
0.025431538000702858,
-0.001330232829786837,
0.11271200329065323,
-0.013658066280186176,
0.06287063658237457,
0.04327894374728203,
-0.017347367480397224,
-0.023046981543302536,
-0.04275449737906456,
0.06477269530296326,
0.08161677420139313,
0.030682021751999855,
0.035110898315906525,
-0.019274242222309113,
0.024220915511250496,
0.0001161706677521579,
-0.015667391940951347,
-0.07618902623653412,
-0.006728198379278183,
-0.029339276254177094,
-0.013083991594612598,
0.09604740142822266,
-0.03310249745845795,
0.014911516569554806,
0.07110697031021118,
0.01628449372947216,
-0.1284230351448059,
0.08027634769678116,
0.006094462238252163,
0.01653142459690571,
0.015283509157598019,
-0.021245844662189484,
0.05227155610918999,
0.0284036323428154,
0.03708280250430107,
0.008136999793350697,
-0.02209458313882351,
0.07758563756942749,
-0.0499909333884716,
-0.05259692668914795,
-0.0020043333061039448,
0.07884640991687775,
-0.02847292646765709,
0.05008081719279289,
0.0222725048661232,
0.06047188118100166,
-0.026285571977496147,
-0.04406582564115524,
-0.00812735129147768,
0.023430349305272102,
0.02523704804480076,
0.08485507220029831,
-0.03336111083626747,
-0.006867863237857819,
-0.04864104837179184,
0.05156446620821953,
-0.06417693942785263,
0.043897997587919235,
0.0379159152507782,
0.036644674837589264,
-0.03836609050631523,
7.448280447011445e-33,
-0.0003398636181373149,
0.07637329399585724,
-0.01573917642235756,
-0.0430312305688858,
-0.030401332303881645,
0.01276941504329443,
-0.09620289504528046,
0.10136949270963669,
-0.016132380813360214,
0.00471141654998064,
-0.07272818684577942,
0.03524039313197136,
0.03470302373170853,
-0.03837019205093384,
0.0018285739934071898,
-0.03845587372779846,
0.08361523598432541,
-0.02592206560075283,
-0.08924594521522522,
0.029435627162456512,
-0.06603687256574631,
-0.009015120565891266,
-0.03839236497879028,
-0.021835006773471832,
0.0655597448348999,
0.10372152179479599,
0.037693772464990616,
-0.004381916020065546,
0.05712195113301277,
0.03440726920962334,
0.011860698461532593,
-0.00894857756793499,
-0.030629007145762444,
0.03614616394042969,
-0.0018179493490606546,
0.003100114641711116,
-0.022793978452682495,
-0.03230210766196251,
-0.03611290827393532,
-0.01954825595021248,
0.052822113037109375,
0.02075609378516674,
-0.05564894527196884,
-0.01978565752506256,
0.07545579224824905,
-0.06235511973500252,
-0.0022576709743589163,
-0.01780623383820057,
0.020403707399964333,
-0.02379647083580494,
-0.03775034844875336,
0.01599944569170475,
-0.12761367857456207,
0.005033618304878473,
0.10572201758623123,
0.05136141926050186,
0.04555952176451683,
-0.011651329696178436,
-0.05941206216812134,
0.06335930526256561,
0.04399082809686661,
-0.030177155509591103,
0.048610955476760864,
0.08139137923717499,
0.03538685664534569,
-0.04524039104580879,
-0.04795069992542267,
0.005765044596046209,
-0.02433299645781517,
0.040500707924366,
-0.05005708709359169,
-0.0032622937578707933,
0.13185392320156097,
-0.09537190943956375,
0.054960887879133224,
-0.030661340802907944,
-0.01885933056473732,
0.07538311928510666,
0.016785141080617905,
0.06902917474508286,
0.0029167025350034237,
-0.06463680416345596,
0.017742471769452095,
-0.11321250349283218,
-0.04720515385270119,
0.03179484233260155,
-0.01043807901442051,
-0.03317096829414368,
0.02957155555486679,
-0.041725099086761475,
0.0014293520944193006,
0.0276084765791893,
-0.01720556803047657,
-0.007271906826645136,
-0.14598926901817322,
-9.089965571794282e-33,
0.028599126264452934,
0.009448707103729248,
0.05635518580675125,
0.03422087803483009,
-0.013044503517448902,
0.02565762773156166,
0.026916511356830597,
0.07019388675689697,
-0.08646378666162491,
-0.04434015229344368,
0.04198304936289787,
-0.032512445002794266,
-0.0030902691651135683,
-0.07476290315389633,
-0.0045370077714324,
-0.04192589223384857,
0.10839658975601196,
0.014012829400599003,
-0.04187026992440224,
-0.010275906883180141,
0.04853605851531029,
-0.011838321574032307,
0.0624101497232914,
-0.05139422416687012,
-0.03198114037513733,
-0.02156333439052105,
0.1142602264881134,
-0.024227168411016464,
-0.017758887261152267,
0.013426732271909714,
-0.04327845200896263,
-0.027553871273994446,
-0.010482707992196083,
-0.028443124145269394,
0.06264611333608627,
0.049644630402326584,
0.09396236389875412,
0.009626966901123524,
-0.025705993175506592,
-0.03943706303834915,
-0.013701124116778374,
0.15087701380252838,
-0.020053952932357788,
0.009522011503577232,
-0.028248563408851624,
0.02753782831132412,
-0.0041168127208948135,
0.12098097056150436,
0.009510044008493423,
-0.08098642528057098,
0.02606705203652382,
-0.06436964869499207,
0.015271632932126522,
0.036633383482694626,
0.0066677480936050415,
0.047268208116292953,
0.008108866401016712,
-0.02855786681175232,
-0.04486281797289848,
0.0022048817481845617,
0.015311251394450665,
-0.045402221381664276,
-0.03412038832902908,
-0.0753142237663269,
0.055136777460575104,
-0.07292550802230835,
0.04908515512943268,
0.004602552391588688,
0.034976739436388016,
0.05127134546637535,
0.0021171127445995808,
-0.10272059589624405,
-0.08278844505548477,
0.003156722290441394,
0.0011641024611890316,
0.0757751390337944,
-0.019373929128050804,
-0.049877043813467026,
-0.033890631049871445,
-0.07673992216587067,
-0.004278686363250017,
0.04575352370738983,
0.018577802926301956,
0.008747311308979988,
0.09275614470243454,
0.05350842699408531,
-0.01410596538335085,
-0.04262060299515724,
-0.012153645046055317,
-0.0746779665350914,
-0.03493759036064148,
0.054602377116680145,
-0.06652062386274338,
-0.008132167160511017,
0.052416183054447174,
-6.491855941703761e-8,
0.02504989691078663,
0.013368908315896988,
-0.1040513813495636,
0.0131121426820755,
0.038811828941106796,
-0.029887057840824127,
-0.007354849949479103,
-0.01180132944136858,
0.028058186173439026,
0.06838127225637436,
0.04490328207612038,
-0.05412673577666283,
-0.03538232296705246,
-0.06310207396745682,
0.059352412819862366,
-0.08017776161432266,
0.0059447637759149075,
-0.08519379794597626,
-0.0035024997778236866,
0.06716135889291763,
0.028678972274065018,
0.01653447188436985,
0.0873071625828743,
-0.03517892584204674,
0.02675965242087841,
0.03102569654583931,
0.021289147436618805,
0.09138669818639755,
0.030128493905067444,
-0.01543505396693945,
-0.07252388447523117,
-0.029367145150899887,
-0.0026990878395736217,
-0.010804829187691212,
-0.06524405628442764,
0.0189735759049654,
-0.002760852687060833,
0.043664030730724335,
0.12240111082792282,
0.06329213827848434,
0.03638920560479164,
-0.05405693128705025,
-0.002259976463392377,
0.07128467410802841,
-0.06423240900039673,
-0.03507348895072937,
-0.0036261582281440496,
-0.036217838525772095,
-0.034016504883766174,
-0.006801035720854998,
-0.033219389617443085,
-0.005991851910948753,
0.017004435881972313,
-0.12521637976169586,
-0.02415080927312374,
0.037819910794496536,
-0.03956403583288193,
-0.07293542474508286,
-0.01170214544981718,
0.02345765382051468,
0.05674457550048828,
-0.09430798143148422,
-0.20777983963489532,
-0.011466898024082184
] | 14,393 |
14,396 |
Erratum to ATEL 14395
|
Mayuresh Surnis (JBCA, University of Manchester), Benjamin Stappers (JBCA, University of Manchester), Fabian Jankowski (JBCA, University of Manchester), Kaustubh Rajwade (JBCA, University of Manchester), Manisha Caleb (JBCA, University of Manchester), Bhal Chandra Joshi (NCRA-TIFR), Manjari Bagchi (IMSc), Yogesh Maan (API, University of Amsterdam)
|
In ATEL #14395, Yogesh Maan was left out from the authors' list by mistake.
|
2021-02-17 02:08:00
|
radio,fast radio burst,magnetar,neutron star,star,supernova remnant,supernovae,transient
|
2021-02-17
|
02:08:00
| 75 |
[
-0.06893876940011978,
0.04940236359834671,
0.015746718272566795,
-0.04938628897070885,
0.06145159527659416,
-0.038107071071863174,
-0.02029707282781601,
0.034874528646469116,
-0.0030580658931285143,
0.02442966401576996,
0.0406503789126873,
-0.058718450367450714,
-0.021193813532590866,
0.0015333474148064852,
-0.051115356385707855,
0.02989533543586731,
-0.03257196396589279,
0.06676323711872101,
0.014214828610420227,
-0.06371886283159256,
0.04220207408070564,
0.041688237339258194,
0.02639826573431492,
-0.04088763892650604,
0.06377561390399933,
-0.03845958039164543,
0.0058152577839791775,
-0.001062709023244679,
-0.055734649300575256,
-0.09965634346008301,
0.008333769626915455,
0.0503247007727623,
0.05761633813381195,
-0.019556500017642975,
-0.014764550141990185,
0.03414812311530113,
0.035189222544431686,
0.012926535680890083,
-0.08429659157991409,
-0.03683260828256607,
0.00787562970072031,
-0.01895107887685299,
0.08214715868234634,
-0.006466401740908623,
0.007505216635763645,
-0.024486443027853966,
-0.07469316571950912,
-0.05087843909859657,
-0.06063658744096756,
0.1216680034995079,
-0.03335654363036156,
0.002902077976614237,
0.010798471979796886,
-0.015527093783020973,
0.052036236971616745,
-0.0480378232896328,
-0.06423991173505783,
0.008436648175120354,
-0.060906194150447845,
0.00795375369489193,
0.03292778134346008,
0.0654987245798111,
-0.08665429800748825,
-0.06292036175727844,
0.05861051008105278,
-0.025662429630756378,
0.012322759255766869,
-0.05301586911082268,
0.021895743906497955,
-0.016430482268333435,
-0.00527587253600359,
-0.07682355493307114,
0.03640595078468323,
0.06935431808233261,
-0.018124744296073914,
0.088313989341259,
-0.010171297937631607,
0.0010926014510914683,
0.022300807759165764,
-0.04003702849149704,
0.011378464289009571,
0.012900574132800102,
0.002861020155251026,
-0.02860649675130844,
-0.02680329978466034,
0.06653403490781784,
-0.06738093495368958,
-0.0037520737387239933,
0.04062511399388313,
-0.005930383689701557,
0.126155287027359,
-0.0504683293402195,
-0.04194103181362152,
0.11314527690410614,
0.07956673204898834,
0.006226212717592716,
-0.038793765008449554,
0.03920305147767067,
0.006292643025517464,
0.018234970048069954,
-0.051468878984451294,
0.1334906816482544,
-0.07386435568332672,
0.0028889188542962074,
-0.1383211314678192,
-0.09075087308883667,
0.028065552935004234,
-0.03392613306641579,
0.003446006216108799,
-0.007532143499702215,
0.018665850162506104,
-0.05102642998099327,
0.06789380311965942,
0.03218000754714012,
0.018961990252137184,
-0.02023748680949211,
-0.00482153007760644,
-0.009842032566666603,
-0.00021412032947409898,
-0.08504657447338104,
-0.047029513865709305,
0.018959641456604004,
0.025173917412757874,
0.06542696803808212,
-0.01983928307890892,
0.010104133747518063,
-0.03548208251595497,
7.462805883767762e-33,
0.021417779847979546,
0.03342790901660919,
0.06775037199258804,
0.09029466658830643,
-0.055578213185071945,
-0.08205641806125641,
-0.02713198773562908,
-0.02012542076408863,
0.025174729526042938,
-0.08736605197191238,
-0.10016313940286636,
-0.017200591042637825,
-0.0002766642428468913,
0.00022389605874195695,
-0.036485493183135986,
-0.04079744592308998,
0.07452015578746796,
0.023045947775244713,
0.006033412180840969,
-0.0009607337415218353,
-0.017456041648983955,
0.06704579293727875,
0.027883654460310936,
-0.046147506684064865,
-0.02819313481450081,
0.11358340829610825,
0.015671083703637123,
-0.023045819252729416,
0.1561884731054306,
0.04994833841919899,
0.050794567912817,
-0.005950063467025757,
-0.050744667649269104,
-0.00836157612502575,
-0.003844592021778226,
0.10797316581010818,
-0.016742564737796783,
-0.02745715156197548,
-0.02800074592232704,
-0.02243579737842083,
0.0018215811578556895,
0.10263404995203018,
0.07505132257938385,
0.019788218662142754,
-0.008003411814570427,
-0.04009096696972847,
-0.07812728732824326,
0.08894625306129456,
0.12339287251234055,
-0.011390306986868382,
-0.08314681798219681,
-0.002777501940727234,
-0.05543839558959007,
-0.10005448013544083,
0.01091862004250288,
-0.03121046908199787,
-0.0148067781701684,
0.05571487545967102,
-0.042869988828897476,
0.08084183931350708,
-0.05253221467137337,
0.08391716331243515,
-0.003856288967654109,
0.03668210655450821,
0.0396275594830513,
0.048244692385196686,
-0.07162370532751083,
-0.07569152116775513,
-0.018320657312870026,
0.04854055494070053,
-0.03862110152840614,
0.03231901675462723,
0.05313429981470108,
0.01307541225105524,
-0.004905435722321272,
-0.046355098485946655,
0.04270954430103302,
0.02579655312001705,
-0.026611121371388435,
-0.0030957020353525877,
-0.016703981906175613,
0.04861776903271675,
-0.10377863794565201,
-0.010823868215084076,
-0.07197880744934082,
-0.015921104699373245,
0.03169431537389755,
0.017746612429618835,
0.05074113979935646,
0.07232042402029037,
0.03712647780776024,
-0.05929255858063698,
-0.005586669314652681,
0.017978250980377197,
-0.1373651623725891,
-7.820317796890975e-33,
-0.058353278785943985,
-0.0637456476688385,
-0.05467701330780983,
0.026113618165254593,
0.03795623034238815,
-0.010135992430150509,
-0.00504709966480732,
0.09226582944393158,
0.0014780382625758648,
-0.08158215880393982,
0.0578688308596611,
-0.05348239466547966,
0.07972250133752823,
-0.04117494821548462,
0.04094835743308067,
-0.020084861665964127,
0.006157931871712208,
0.029688717797398567,
-0.05709376931190491,
0.043681833893060684,
0.04360359534621239,
0.031323663890361786,
-0.025749528780579567,
0.00598314730450511,
0.04610201716423035,
0.10145529359579086,
0.03089894726872444,
-0.09297886490821838,
-0.08697272837162018,
-0.022893089801073074,
0.030726587399840355,
-0.020473672077059746,
-0.12907086312770844,
-0.03527604788541794,
-0.030281275510787964,
0.06419551372528076,
0.004660600330680609,
0.050461553037166595,
-0.05678221583366394,
-0.04916394129395485,
-0.02953258343040943,
0.07764700055122375,
-0.08714086562395096,
-0.023959435522556305,
0.03594369813799858,
0.03577090799808502,
-0.05518389493227005,
0.13226927816867828,
0.01385804358869791,
-0.020017698407173157,
0.011812157928943634,
0.020927302539348602,
0.03461999073624611,
-0.10343080013990402,
0.06195450574159622,
0.08000186830759048,
0.025740263983607292,
-0.05659962445497513,
-0.02482520043849945,
0.013119172304868698,
-0.024780429899692535,
-0.03438662737607956,
-0.025955526158213615,
-0.01839560642838478,
-0.023221762850880623,
-0.02847522497177124,
-0.008437607437372208,
0.0020508309826254845,
0.014037675224244595,
-0.046096231788396835,
0.06679593026638031,
-0.030601195991039276,
0.007887395098805428,
-0.021790912374854088,
0.005682401359081268,
-0.08518516272306442,
-0.08634468168020248,
-0.030870914459228516,
-0.06346864998340607,
-0.027357719838619232,
-0.029345836490392685,
0.050180092453956604,
0.003842580132186413,
0.051177218556404114,
0.08572368323802948,
0.04024215042591095,
0.013645297847688198,
-0.03605242818593979,
0.028760261833667755,
0.012206108309328556,
0.022489245980978012,
-0.021365050226449966,
-0.0277995727956295,
0.018484018743038177,
0.055286165326833725,
-6.939836083574846e-8,
0.03630291298031807,
-0.058798860758543015,
0.018346106633543968,
-0.04503728821873665,
-0.06542147696018219,
0.04862223565578461,
-0.03016180731356144,
0.06374066323041916,
0.007648346945643425,
0.054990869015455246,
0.013681596145033836,
0.08899985998868942,
-0.05767560005187988,
-0.03642705827951431,
0.014147321693599224,
-0.04441189020872116,
0.08293240517377853,
0.08078505843877792,
-0.07717353105545044,
-0.010848872363567352,
0.008527331054210663,
0.04334656894207001,
-0.034633852541446686,
-0.10820389539003372,
0.00863048154860735,
0.04886413738131523,
-0.003038393333554268,
0.004965838044881821,
-0.07293867319822311,
-0.001848178100772202,
-0.0005225836648605764,
0.013066744431853294,
0.06620049476623535,
-0.03650602698326111,
0.015127292834222317,
0.04743592068552971,
0.04089890047907829,
0.04140015318989754,
-0.030304590240120888,
0.004718940705060959,
-0.04720073565840721,
-0.019814928993582726,
0.015492740087211132,
0.10846786946058273,
0.04754745960235596,
-0.0745299831032753,
-0.020659862086176872,
-0.006744794547557831,
-0.0024612038396298885,
-0.030811958014965057,
-0.045906003564596176,
-0.040438730269670486,
0.016158249229192734,
-0.0470442920923233,
-0.04462667554616928,
-0.029393764212727547,
-0.04247713461518288,
-0.05886049196124077,
0.009340982884168625,
-0.05829819664359093,
0.14316466450691223,
-0.023845404386520386,
-0.01521887257695198,
0.053795017302036285
] | 14,394 |
14,397 |
Detection of flaring activity from Cygnus X-3 in soft X-ray bands by MAXI/GSC
|
Mangal Hazra (MCC), Sabyasachi Pal (MCC/ICSP), Debasish Saha (MCC)
|
Cygnus X-3 is a high mass X-ray binary that often shows flaring activity (eg., ATEL #727, #809, #952, #1092, #1100, #1483, #1486, #1881, #9444 etc). Recently it went through another outburst in the hard energy bands (15-50 keV) as observed by Swift/BAT (ATEL #14298).
We report a renewed flaring activity towards Cygnus X-3 as detected by MAXI/GSC. The flare is detectable only in the lower energy bands (2-4 keV, 4-10 keV and 2-20 keV) but no significant activity is observed by Swift/BAT and Fermi/LAT in the higher energy bands. The source flux started to increase from MJD ~59251.5 (2021-02-06) and reached 171.07±5.23 mCrab on MJD 59260.5 (2021-02-15) in the energy range 2-20 keV as observed by MAXI/GSC. The Hardness Ratio (10-20 keV/2-4 keV) varies from ~0.84 (MJD 59257.5) to ~0.24 (MJD 59260.5).
Since the flare is continuously increasing, further observations in all wavelengths are encouraged.
This research has made use of MAXI data provided by RIKEN, JAXA and the MAXI team.
|
2021-02-17 03:45:00
|
x-ray,binary,black hole,transient,request for observations
|
2021-02-17
|
03:45:00
| 991 |
[
-0.09388142824172974,
-0.07193885743618011,
0.005448389332741499,
0.0666545182466507,
0.08358345925807953,
-0.02118045836687088,
0.008652019314467907,
0.05043966695666313,
-0.03516361489892006,
0.023912549018859863,
-0.04526965692639351,
-0.03701837360858917,
0.037288304418325424,
-0.015412833541631699,
0.06918822228908539,
0.041081350296735764,
0.03753276169300079,
-0.07559198886156082,
-0.014472086913883686,
0.029460271820425987,
0.06247129291296005,
0.014394142664968967,
-0.006290470249950886,
0.037916552275419235,
0.046424202620983124,
0.016879543662071228,
-0.014734111726284027,
-0.06208442524075508,
-0.034834932535886765,
-0.0488748736679554,
0.06850467622280121,
0.07723797857761383,
-0.049816932529211044,
-0.002312298398464918,
0.07094594836235046,
-0.012769609689712524,
-0.03029940463602543,
-0.026304934173822403,
0.02005532570183277,
0.014362184330821037,
-0.025512002408504486,
-0.012478385120630264,
0.06192486733198166,
-0.01695246249437332,
-0.0177773367613554,
0.00078264792682603,
0.030973102897405624,
-0.07232615351676941,
-0.005157145671546459,
-0.02611035294830799,
0.07324657589197159,
-0.05071084946393967,
0.014813141897320747,
0.06801867485046387,
0.025214694440364838,
0.009315787814557552,
-0.10268201678991318,
-0.060706086456775665,
0.10001210123300552,
-0.00046029945951886475,
-0.005631705746054649,
0.040116894990205765,
-0.0279065128415823,
0.006345846690237522,
0.008991135284304619,
-0.05438445508480072,
-0.036086007952690125,
-0.02555200271308422,
0.04490772262215614,
0.0140426279976964,
0.048649948090314865,
0.015130758285522461,
-0.025502528995275497,
-0.11096061021089554,
0.009174283593893051,
0.03364754468202591,
0.12730617821216583,
-0.024765195325016975,
0.04747580736875534,
-0.08801662921905518,
-0.049334652721881866,
0.0010196126531809568,
0.028881501406431198,
-0.04287737235426903,
0.016757063567638397,
0.03218124061822891,
-0.002056669909507036,
0.04660438373684883,
0.010906660929322243,
0.12452703714370728,
0.07486171275377274,
0.08168606460094452,
-0.03900082781910896,
0.07715371251106262,
0.03734739497303963,
0.020130515098571777,
0.09509729593992233,
-0.0008745777304284275,
0.010139424353837967,
0.027199890464544296,
0.04817524924874306,
0.0006330739706754684,
0.0026579026598483324,
0.1015874594449997,
-0.005529734306037426,
-0.05916286259889603,
0.023519499227404594,
0.03291410952806473,
-0.08894916623830795,
0.020923009142279625,
-0.004789040889590979,
-0.0101228142157197,
-0.05710634961724281,
-0.08391453325748444,
-0.014098919928073883,
0.006131397094577551,
0.025597332045435905,
0.028603866696357727,
-0.13210973143577576,
-0.04322074353694916,
-0.012814209796488285,
0.0012489460641518235,
0.02000938355922699,
0.08453482389450073,
0.004346122965216637,
0.026147890836000443,
-0.11801628023386002,
5.9098577255025455e-33,
0.036632392555475235,
0.020522404462099075,
-0.025119228288531303,
-0.04697757959365845,
-0.09872200340032578,
-0.04122590646147728,
-0.021532000973820686,
0.04614580422639847,
-0.01912313885986805,
0.029426807537674904,
-0.05446479097008705,
0.08575756847858429,
0.029990335926413536,
-0.05458006262779236,
-0.08217812329530716,
-0.09334670752286911,
-0.0016602593241259456,
-0.002523227361962199,
-0.11506319046020508,
-0.0022073208820074797,
-0.03950072452425957,
-0.05337156727910042,
-0.05666056647896767,
-0.045818231999874115,
-0.0032823248766362667,
0.09510761499404907,
0.0497078076004982,
0.019360516220331192,
-0.05167170241475105,
0.05579141899943352,
0.022747540846467018,
-0.048737794160842896,
0.02957434207201004,
0.04007905721664429,
-0.024739639833569527,
-0.027975374832749367,
-0.053232792764902115,
-0.05904584750533104,
-0.048117995262145996,
-0.02287241816520691,
-0.06333578377962112,
0.010196700692176819,
-0.076594278216362,
-0.005246240179985762,
0.06187087297439575,
0.028038417920470238,
-0.010516048409044743,
-0.03628408536314964,
0.004401484038680792,
-0.04560105502605438,
0.01468703430145979,
-0.027023881673812866,
-0.004578613676130772,
0.10956370830535889,
0.09184321761131287,
0.051889996975660324,
0.04938933625817299,
-0.024837298318743706,
0.025148143991827965,
0.05151614919304848,
0.027095744386315346,
-0.009453073143959045,
-0.016924181953072548,
0.045113056898117065,
0.010229925625026226,
0.0661202147603035,
-0.04349292814731598,
0.008691021241247654,
-0.08037751168012619,
0.07542082667350769,
-0.013054292649030685,
0.005329473409801722,
0.039113741368055344,
-0.005020278040319681,
0.0977083146572113,
-0.03862622007727623,
0.030141104012727737,
0.09557633101940155,
-0.06028524041175842,
0.05564646050333977,
-0.038869958370923996,
-0.09418367594480515,
0.05387982726097107,
-0.03073010966181755,
-0.05896695703268051,
-0.020535631105303764,
-0.05146357789635658,
-0.021403241902589798,
0.0017600306309759617,
0.06131621077656746,
0.042156774550676346,
-0.06564481556415558,
0.09381890296936035,
-0.018966173753142357,
-0.12008678913116455,
-5.701701920542904e-33,
-0.05743033066391945,
0.053979579359292984,
-0.04312443360686302,
-0.007870262488722801,
-0.011948170140385628,
0.05793881416320801,
0.022314855828881264,
0.05659116059541702,
-0.06768356263637543,
-0.09557968378067017,
0.0034050429239869118,
0.026060914620757103,
-0.09263533353805542,
-0.05292541906237602,
0.02352779358625412,
-0.04906272888183594,
0.06924363225698471,
0.0034975316375494003,
-0.03193886950612068,
0.039221737533807755,
0.014637180604040623,
0.008841258473694324,
0.0304467361420393,
-0.06580834835767746,
0.03212548792362213,
0.028097601607441902,
0.028792686760425568,
-0.008774983696639538,
-0.03475644811987877,
0.03869384899735451,
-0.06759436428546906,
0.08896027505397797,
-0.00198513176292181,
0.020992562174797058,
-0.006820296868681908,
0.009174308739602566,
0.02364156022667885,
0.023510025814175606,
-0.05467621609568596,
-0.037826091051101685,
0.017910052090883255,
0.11908344179391861,
0.04553541541099548,
0.07992986589670181,
-0.0056958068162202835,
0.08750469237565994,
-0.03119768761098385,
0.028508909046649933,
0.05367184802889824,
0.028553543612360954,
0.006861752364784479,
-0.07153967767953873,
-0.031506385654211044,
0.08709856867790222,
-0.003700954606756568,
-0.006330625154078007,
0.0606517530977726,
-0.022174878045916557,
-0.03479741886258125,
-0.0708351880311966,
0.05365713685750961,
-0.05111776664853096,
0.010884641669690609,
-0.07375267893075943,
0.0880841612815857,
-0.06288499385118484,
0.014949760399758816,
0.08015727251768112,
0.042539332062006,
0.03480111062526703,
0.07706568390130997,
-0.05622497946023941,
-0.04863887280225754,
0.01080009713768959,
-0.02830137312412262,
0.06308691948652267,
-0.003849875181913376,
-0.06866709887981415,
0.0055747851729393005,
0.0028248236048966646,
0.016942229121923447,
0.08166021853685379,
0.03387942537665367,
-0.048470884561538696,
0.049534112215042114,
-0.0072721089236438274,
-0.02290329895913601,
-0.02653675526380539,
0.041694965213537216,
-0.02666529081761837,
-0.0883711576461792,
0.02486271969974041,
-0.0034576363395899534,
0.08391904830932617,
0.009382626973092556,
-5.8184536300132095e-8,
-0.030995456501841545,
0.013401647098362446,
-0.05923682078719139,
0.008137269876897335,
0.08036206662654877,
0.041107624769210815,
-0.05632580816745758,
-0.02462395280599594,
0.08043303340673447,
-0.01105709932744503,
0.034270234405994415,
-0.0050647263415157795,
0.11840962618589401,
-0.05027702823281288,
0.04543903470039368,
-0.07922358065843582,
-0.029235022142529488,
-0.04740768298506737,
-0.007585034240037203,
-0.03493749350309372,
-0.013146975077688694,
0.04132187366485596,
0.023207789286971092,
-0.03408319130539894,
0.05085465684533119,
0.026864206418395042,
0.012577664107084274,
0.08191167563199997,
-0.003247234271839261,
-0.057754915207624435,
-0.05256495997309685,
-0.0033547640778124332,
0.019362328574061394,
-0.007859340868890285,
-0.07987650483846664,
0.08523537963628769,
-0.07501097023487091,
0.003781429026275873,
0.03963344171643257,
0.09544803947210312,
-0.06854208558797836,
-0.015641404315829277,
0.04447634890675545,
0.030046386644244194,
-0.12966303527355194,
-0.007205175701528788,
-0.03722148761153221,
-0.09276971220970154,
0.010200267657637596,
-0.027698446065187454,
-0.033599603921175,
-0.0655665472149849,
-0.019289784133434296,
-0.07785125076770782,
-0.06745307147502899,
0.0001387789670843631,
-0.0772467628121376,
-0.012969193048775196,
0.0023041940294206142,
-0.05182269588112831,
0.004930594470351934,
-0.10269797593355179,
-0.09801335632801056,
0.046435002237558365
] | 14,395 |
14,398 |
LJT Spectroscopic Classification of AT 2021dbg (ATLAS21gfy) as a Young Type II Supernova with flash features
|
Jujia Zhang, Qian Zhai (YNAO); Xiaofeng Wang(THU)
|
We obtained an optical spectrum (range 350-860 nm) of AT 2021dbg (ATLAS21gfy) on UT Feb.16.7, 2021, with the LiJiang 2.4 m telescope (LJT + YFOSC) of Yunnan Observatories (YNAO). The spectrum shows blue continuum and flash features (e.g., NV, He II, and Halpha) consistent with a young type II supernova. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024) shows that it matches with SN 1998S at t = -13 days from the maximum light. The spectrum is available at TNS (https://www.wis-tns.org/object/2021dbg).
|
2021-02-17 10:14:00
|
optical,supernovae
|
2021-02-17
|
10:14:00
| 598 |
[
-0.0847337618470192,
-0.08974801003932953,
0.012963414192199707,
0.0249886903911829,
0.031201282516121864,
0.04792086407542229,
-0.05432189628481865,
0.024065235629677773,
-0.06803584843873978,
-0.05758289247751236,
0.03256230801343918,
-0.002305859699845314,
-0.03964298963546753,
0.013612312264740467,
0.03284746780991554,
0.03632461279630661,
0.10580312460660934,
-0.13673102855682373,
0.03535029664635658,
0.01762518845498562,
0.0907054916024208,
-0.01946731097996235,
-0.02512248046696186,
-0.0031762337312102318,
0.01900002360343933,
-0.049873314797878265,
-0.04982447251677513,
-0.035169027745723724,
0.04145047441124916,
0.053515784442424774,
0.0536346510052681,
0.08382588624954224,
-0.03851377218961716,
0.04999849572777748,
0.02702896110713482,
-0.0915721207857132,
0.07048869132995605,
-0.01960192434489727,
0.025119202211499214,
-0.000889357237610966,
0.007201430853456259,
-0.03537025302648544,
0.0007609173189848661,
-0.020946893841028214,
0.01974770799279213,
0.014820050448179245,
-0.07335694879293442,
-0.0735742449760437,
-0.09148324280977249,
0.008024808950722218,
-0.04093596711754799,
0.003837050637230277,
0.014625241979956627,
0.07359381020069122,
0.06829282641410828,
0.07875999808311462,
-0.013666137121617794,
-0.06355175375938416,
0.10913737863302231,
0.04396669566631317,
0.006685073021799326,
-0.021891266107559204,
-0.03554430603981018,
-0.05395466461777687,
0.06273816525936127,
0.09533657878637314,
-0.053148165345191956,
-0.00378061062656343,
0.03054502233862877,
-0.024332676082849503,
-0.009495791979134083,
0.031078509986400604,
-0.038991451263427734,
0.08722101897001266,
-0.021538803353905678,
0.026729771867394447,
0.09433671087026596,
0.018217895179986954,
-0.003987289033830166,
-0.13310080766677856,
0.044221408665180206,
-0.01722560077905655,
0.06937704980373383,
-0.024747073650360107,
0.016197530552744865,
-0.02935468778014183,
-0.08353529125452042,
0.12527821958065033,
-0.00930944737046957,
0.03485650569200516,
0.03886112943291664,
0.023876942694187164,
-0.05958499386906624,
-0.04186447709798813,
0.0034010238014161587,
0.08098775893449783,
0.03921765834093094,
-0.03295690566301346,
0.07725204527378082,
-0.014559231698513031,
0.07700882107019424,
-0.03239843621850014,
-0.03621537610888481,
0.037677325308322906,
0.007175676990300417,
-0.026027485728263855,
0.057046763598918915,
0.018043022602796555,
-0.02006954699754715,
0.03679843619465828,
0.11479634791612625,
-0.0022678941022604704,
-0.04166555777192116,
-0.08441068232059479,
-0.028581909835338593,
0.002901467029005289,
-0.03313710168004036,
0.15412433445453644,
-0.06417844444513321,
-0.034216828644275665,
0.005545369815081358,
0.1467871069908142,
0.01462104357779026,
0.02395191229879856,
0.01667642779648304,
0.05601703003048897,
-0.10502788424491882,
5.882430870903969e-33,
0.05621233955025673,
-0.005970245227217674,
-0.044030554592609406,
0.009629772044718266,
-0.021853717043995857,
-0.03433511406183243,
0.017169363796710968,
0.025140544399619102,
-0.051670752465724945,
0.01612122356891632,
-0.060489945113658905,
0.04056953266263008,
-0.014239128679037094,
-0.07193201780319214,
0.003685937263071537,
0.011814543046057224,
0.0030271033756434917,
-0.025017349049448967,
-0.0358058400452137,
-0.010611525736749172,
0.007366003934293985,
0.017249492928385735,
0.03705741465091705,
-0.004726877436041832,
-0.012658488936722279,
-0.03845315799117088,
0.11254332214593887,
-0.033733587712049484,
0.014924252405762672,
0.03239387273788452,
-0.014664200134575367,
-0.029560325667262077,
0.02447633445262909,
0.02332606166601181,
0.021116819232702255,
-0.07930509001016617,
-0.009866170585155487,
-0.007781354710459709,
-0.051412180066108704,
-0.03994188830256462,
0.07582883536815643,
0.06568441540002823,
-0.09981255233287811,
0.033797264099121094,
0.030619943514466286,
-0.01610185205936432,
0.04916814714670181,
0.02392379380762577,
0.021481210365891457,
0.030115043744444847,
-0.06866373866796494,
-0.04173053056001663,
-0.09818493574857712,
0.017007993534207344,
-0.02642342634499073,
0.06363759189844131,
0.06630559265613556,
0.004350970033556223,
0.04973524436354637,
0.02797369658946991,
0.04328271001577377,
-0.037461910396814346,
0.006831188686192036,
0.025863146409392357,
-0.04818541556596756,
0.003295107511803508,
-0.044731996953487396,
0.031886279582977295,
-0.02284122072160244,
-0.018208416178822517,
0.018944744020700455,
0.01288269367069006,
0.14364996552467346,
-0.09465059638023376,
0.10385016351938248,
-0.09508342295885086,
0.04910259693861008,
0.0031603402458131313,
-0.06647879630327225,
0.07991261780261993,
-0.104302778840065,
0.0178925022482872,
0.06499091535806656,
-0.016088079661130905,
-0.04849148914217949,
-0.02439688891172409,
-0.02612638659775257,
0.05761204659938812,
0.014822691679000854,
-0.06053716689348221,
0.014191213063895702,
-0.018835807219147682,
0.019269010052084923,
-0.02413988672196865,
-0.0312931053340435,
-4.953007895327096e-33,
0.04226800799369812,
0.04614230617880821,
0.0183156356215477,
0.01508315373212099,
0.013724124059081078,
-0.03994205966591835,
0.028495706617832184,
0.07362326234579086,
-0.08935241401195526,
-0.05599687620997429,
0.09016863256692886,
0.027081867679953575,
-0.028561240062117577,
-0.10219564288854599,
-0.013146922923624516,
-0.05862710252404213,
-0.007002107333391905,
0.009207434020936489,
0.021307719871401787,
0.000048340058128815144,
-0.03863329440355301,
-0.020354537293314934,
0.0037232646718621254,
0.04712892696261406,
0.026432065293192863,
0.008099978789687157,
0.07746371626853943,
-0.013123046606779099,
-0.04340444132685661,
0.022587494924664497,
-0.034867413341999054,
0.03685738891363144,
-0.0027725708205252886,
0.05090087652206421,
-0.029772941023111343,
-0.02732091397047043,
0.013197136111557484,
-0.0414462573826313,
-0.08776304125785828,
0.04122796282172203,
-0.0023055567871779203,
0.06940128654241562,
-0.01990974321961403,
-0.012479920871555805,
-0.04930626228451729,
0.003998770844191313,
-0.021743791177868843,
0.02424788475036621,
0.054829999804496765,
-0.051677752286195755,
0.02548701874911785,
-0.059334561228752136,
-0.03166735917329788,
0.046364884823560715,
-0.013216027058660984,
-0.05338146165013313,
-0.013395327143371105,
0.052346885204315186,
-0.02053815871477127,
0.022221356630325317,
0.0752941220998764,
-0.059923477470874786,
0.005261280573904514,
0.02110062539577484,
0.08201702684164047,
0.0249105766415596,
0.04868783801794052,
0.03019140288233757,
-0.030707618221640587,
0.00014376631588675082,
0.04006659984588623,
-0.07691703736782074,
-0.07464081048965454,
0.027732176706194878,
0.0651453286409378,
0.012561260722577572,
-0.03273911029100418,
-0.054602235555648804,
-0.0035331635735929012,
0.002492941915988922,
-0.01863217167556286,
0.009495167061686516,
0.013759550638496876,
0.024818124249577522,
0.04908590018749237,
-0.04785503074526787,
-0.032501816749572754,
0.005538168828934431,
-0.037838444113731384,
-0.08458147197961807,
-0.028984099626541138,
0.0050450474955141544,
-0.10409051179885864,
-0.023530475795269012,
0.09576673805713654,
-5.346625897573176e-8,
0.03507092595100403,
0.013986269943416119,
-0.021754354238510132,
0.007114923559129238,
0.02189990133047104,
-0.06264165788888931,
-0.04267837479710579,
0.060729097574949265,
0.09709717333316803,
0.018392717465758324,
0.02431967668235302,
-0.11471615731716156,
0.002117763040587306,
0.0015486724441871047,
0.040787868201732635,
-0.08949346840381622,
-0.05900888890028,
-0.03192475810647011,
-0.03134353458881378,
0.01583256945014,
0.004942452535033226,
0.014660203829407692,
0.08983893692493439,
-0.09726905822753906,
-0.028677422553300858,
-0.011237937025725842,
-0.08075041323900223,
0.08817373216152191,
0.07201504707336426,
-0.06842457503080368,
0.03362802416086197,
-0.04653415083885193,
-0.0382445752620697,
-0.08064232766628265,
-0.02336307428777218,
0.042517490684986115,
-0.026908960193395615,
0.025962872430682182,
0.09071183204650879,
0.11666305363178253,
-0.002947155386209488,
-0.08666013926267624,
-0.033476024866104126,
0.04488106071949005,
-0.008785274811089039,
-0.012070044875144958,
0.00465168384835124,
-0.02765553817152977,
0.03418083116412163,
0.07742497324943542,
-0.01490294560790062,
-0.06369321793317795,
0.0074237799271941185,
-0.08726874738931656,
-0.06490204483270645,
0.01993458718061447,
-0.016467245295643806,
0.031888287514448166,
-0.027365488931536674,
0.022331243380904198,
0.15424393117427826,
-0.07169163972139359,
-0.06366702169179916,
0.009521739557385445
] | 14,396 |
14,399 |
Fermi LAT Detection of Emission from the PSR B1259-63/LS 2883 Binary Just After Periastron
|
T. J. Johnson (GMU, resident at NRL), K. S. Wood (TSC, resident at NRL), C. C. Cheung (NRL), and M. Kerr (NRL) , on behalf of the Fermi Large Area Telescope Collaboration
|
Using data from the Large Area Telescope (LAT), one of the two instruments on board the Fermi Gamma-ray Space Telescope, we detect significant emission consistent with the position of the PSR B1259-63/LS 2883 system following its periastron on 2021-02-09.87, MJD 59254.87 (using the timing solution of Shannon et al. 2014, MNRAS, 437, 3255).
Analyzing LAT data in the region of PSR B1259-63 over the time interval 2021-02-07 06:12:21 UTC to 2021-02-17 05:32:31 UTC, two days before periastron to eight days after, we detect emission above 100 MeV from a point source at the position of PSR B1259-63 with a significance of approximately 5 sigma. Our likelihood analysis yields a preliminary photon flux (from 100 MeV to 300 GeV) of (2.6 +/- 1.1) x 10^-7 ph/cm^2/s and a power-law photon index of 2.4 +/- 0.2. All quoted uncertainties are statistical only.
Analyzing this data set on a daily basis yields low-significance detections (2-3 sigma) on only three days, approximately 2021-02-10, 2021-02-13, and 2021-02-16. Using a fixed photon index of 2.4, our likelihood analysis yields flux levels on these days of (2.4 +/- 1.5), (5.8 +/- 2.1), and (4.0 +/- 2.8) x 10^-7 ph/cm^2/s, respectively.
These results suggests that the system may display similar behavior to that observed during the 2017 periastron passage (Johnson et al. 2018, ApJ, 863, 27), which was followed by dramatically increased gamma-ray flux levels of a few x 10^-6 ph/cm^2/s in a three-day period approximately 10 days after periastron. The only other periastron passages observed by the LAT, in 2010 and 2014, did not display significant GeV emission so soon after periastron.
Because Fermi normally operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. In consideration of the expected ongoing activity of this source we strongly encourage multi-wavelength observations. For this source the Fermi LAT contacts are Tyrel Johnson ([email protected]) and Kent Wood ([email protected]).
The Fermi LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
|
2021-02-18 13:14:00
|
gamma ray,binary,pulsar
|
2021-02-18
|
13:14:00
| 2,297 |
[
-0.015425599180161953,
-0.06209327653050423,
-0.010766260325908661,
0.004009557887911797,
0.05710317939519882,
-0.04545651748776436,
-0.0017201014561578631,
0.03926534578204155,
0.056188493967056274,
0.036700669676065445,
-0.023806177079677582,
-0.01924719288945198,
0.015403483994305134,
0.019903108477592468,
0.029895834624767303,
0.01854393444955349,
0.045229222625494,
-0.12184622883796692,
0.007661737035959959,
0.003313017776235938,
-0.052953917533159256,
0.08649621158838272,
-0.03303352743387222,
0.006025734357535839,
0.023635197430849075,
-0.027492903172969818,
-0.04261619225144386,
-0.01815991848707199,
0.030263027176260948,
-0.014180079102516174,
-0.0066485838033258915,
0.02793804369866848,
-0.0679345354437828,
0.05740823969244957,
0.03694640100002289,
-0.004339753650128841,
0.04941563680768013,
-0.08846855908632278,
0.017704522237181664,
0.021012568846344948,
-0.01427449844777584,
-0.03540194034576416,
-0.007707403507083654,
-0.008616702631115913,
-0.0252736397087574,
0.005803769454360008,
0.002508833771571517,
-0.07314424216747284,
-0.06036704406142235,
-0.015059085562825203,
0.03430614620447159,
0.010745396837592125,
0.015287321992218494,
0.015164428390562534,
-0.04333548992872238,
-0.007204481400549412,
0.00952590350061655,
-0.10342581570148468,
0.03198731318116188,
-0.016426293179392815,
-0.059159960597753525,
-0.029769180342555046,
-0.06513486802577972,
-0.0428568571805954,
0.005675083491951227,
0.04439203813672066,
-0.05906262248754501,
-0.09762803465127945,
0.07716572284698486,
-0.07990134507417679,
0.02592502534389496,
0.061825431883335114,
-0.10125278681516647,
-0.02940581552684307,
-0.005678084678947926,
0.029950954020023346,
0.08197791874408722,
0.045362457633018494,
0.07004963606595993,
-0.11670874059200287,
0.02872469834983349,
0.008162885904312134,
-0.00969486404210329,
0.04954211413860321,
0.04474465548992157,
0.009008456952869892,
-0.04481659084558487,
0.1094568595290184,
0.04355138912796974,
0.009152601473033428,
-0.0133815323933959,
-0.05928024277091026,
-0.09380274266004562,
0.02237051911652088,
-0.011355412192642689,
0.03592969477176666,
0.03790139779448509,
-0.030261514708399773,
0.0974687859416008,
0.05528442561626434,
0.025904497131705284,
0.03400891646742821,
-0.06006891652941704,
0.10243289172649384,
-0.04993544891476631,
0.02190500497817993,
0.041804853826761246,
0.07059360295534134,
-0.023869168013334274,
-0.048817310482263565,
0.05989562347531319,
0.030195726081728935,
-0.03619527444243431,
-0.0502045564353466,
0.00644212681800127,
0.01152912899851799,
0.012282151728868484,
0.11065994203090668,
-0.02605370059609413,
-0.06740652769804001,
-0.02992205321788788,
0.09541861712932587,
-0.01606105826795101,
0.02748275175690651,
0.0454796627163887,
-0.006045299116522074,
-0.07644005864858627,
5.3347070740864164e-33,
0.005780669394880533,
0.0317031592130661,
0.025268374010920525,
-0.00008714521391084418,
-0.060218531638383865,
0.11719749122858047,
-0.08616330474615097,
0.02481071464717388,
0.004738681949675083,
0.006115223281085491,
-0.056151460856199265,
-0.009485726244747639,
-0.03292464837431908,
-0.09022411704063416,
0.051026664674282074,
0.0027445692103356123,
0.09608162939548492,
0.005608886480331421,
-0.08526566624641418,
0.007252665236592293,
0.03497898951172829,
0.017619352787733078,
-0.04144257679581642,
-0.03265252336859703,
0.04908153414726257,
0.0899270623922348,
0.03950925171375275,
0.033485498279333115,
-0.10955878347158432,
0.019339488819241524,
-0.024819903075695038,
0.11891086399555206,
-0.012393458746373653,
0.03816354274749756,
-0.0016384500777348876,
-0.08868260681629181,
-0.03731539845466614,
0.018492570146918297,
0.002973316004499793,
0.009814525954425335,
0.06516849249601364,
0.11276741325855255,
-0.07768016308546066,
-0.04637226462364197,
0.02337983064353466,
-0.02188083343207836,
0.01989823766052723,
0.05835561826825142,
0.07187088578939438,
0.047289952635765076,
-0.04719472676515579,
0.0066059003584086895,
-0.05096858739852905,
-0.0073219179175794125,
0.008158422075212002,
0.017463335767388344,
0.04528780281543732,
-0.021016336977481842,
0.030975667759776115,
0.0453820675611496,
0.07517613470554352,
-0.006245768629014492,
0.0558597594499588,
0.08560753613710403,
0.00225778017193079,
0.015794865787029266,
0.035242076963186264,
0.044397156685590744,
-0.0001921869843499735,
0.056999415159225464,
-0.060860149562358856,
0.06721707433462143,
0.0934959277510643,
-0.08918439596891403,
0.042153168469667435,
-0.10822932422161102,
0.025159334763884544,
0.060904111713171005,
0.04258235543966293,
0.03449194133281708,
-0.031718723475933075,
-0.1062803640961647,
-0.0017819370841607451,
-0.056894492357969284,
-0.03262666240334511,
0.01717256009578705,
-0.048026442527770996,
-0.024992384016513824,
0.015744710341095924,
-0.04013274237513542,
0.06353569775819778,
-0.02239849977195263,
-0.020410427823662758,
0.02963525615632534,
-0.18929146230220795,
-5.339550110811804e-33,
-0.004305223934352398,
0.0029287892393767834,
0.03465801477432251,
0.0029282737523317337,
-0.03998732194304466,
-0.03172377869486809,
0.044892508536577225,
0.05032650753855705,
-0.003231153590604663,
0.016546297818422318,
0.02039121836423874,
0.0821811631321907,
-0.056183651089668274,
-0.06161218881607056,
-0.010053512640297413,
0.021183781325817108,
0.07503703981637955,
0.006568585056811571,
-0.002155562862753868,
0.008118459023535252,
-0.048971161246299744,
0.00949838012456894,
-0.006034402642399073,
-0.05619056895375252,
-0.0010070082498714328,
0.022082114592194557,
0.07417244464159012,
-0.009336424060165882,
-0.030269522219896317,
-0.041482869535684586,
-0.06425322592258453,
0.026063069701194763,
0.04182632267475128,
-0.056619804352521896,
-0.009513896889984608,
-0.02935999073088169,
0.08625717461109161,
0.010871616192162037,
0.007025988772511482,
-0.04021229222416878,
-0.0019514360465109348,
0.14406616985797882,
-0.03158849850296974,
0.0063591813668608665,
-0.028034299612045288,
0.028333833441138268,
0.015279051847755909,
0.03897068277001381,
0.02661984972655773,
-0.005485272966325283,
-0.040741145610809326,
-0.05619613081216812,
0.012724879197776318,
0.05793871730566025,
-0.015793243423104286,
0.008095898665487766,
0.02536137029528618,
0.025347288697957993,
-0.015629133209586143,
-0.0032418386545032263,
0.016770455986261368,
-0.007960673421621323,
0.03691539168357849,
-0.01930196024477482,
0.032860856503248215,
-0.03822057694196701,
0.06797006726264954,
0.0539337694644928,
0.08083374798297882,
0.03547303378582001,
0.014900852926075459,
-0.0532342903316021,
-0.07073470950126648,
0.0017719994066283107,
0.04137357696890831,
0.09146866947412491,
0.004271959885954857,
-0.08614879846572876,
0.05562451481819153,
-0.017870495095849037,
-0.07844220101833344,
-0.0065547265112400055,
-0.052553482353687286,
-0.03997045010328293,
0.055173762142658234,
-0.005144080147147179,
-0.04072537645697594,
0.009053333662450314,
-0.0081586092710495,
-0.06906365603208542,
-0.044285066425800323,
0.03194154426455498,
0.025982925668358803,
0.0007605139981023967,
0.045649267733097076,
-5.893590326877529e-8,
0.0049189054407179356,
-0.0019088018452748656,
-0.08373784273862839,
0.07546494901180267,
0.03388996049761772,
-0.05767304450273514,
0.010668504983186722,
0.032581642270088196,
-0.001250589033588767,
0.04149440675973892,
0.08417156338691711,
0.009866381995379925,
0.024328265339136124,
-0.12841610610485077,
0.04019348323345184,
0.006002490408718586,
0.025224734097719193,
-0.10383569449186325,
-0.044441379606723785,
0.001829944085329771,
0.013358840718865395,
0.003180842846632004,
0.12582184374332428,
-0.05080164596438408,
-0.02303115464746952,
0.0003732760960701853,
-0.0481100007891655,
0.1334500014781952,
-0.016083871945738792,
-0.07692740112543106,
-0.03917843475937843,
-0.06163190305233002,
-0.02375483140349388,
-0.08487334102392197,
-0.06548450887203217,
-0.016006343066692352,
-0.04934825375676155,
0.005214369390159845,
0.1343894898891449,
0.02675361931324005,
0.017378101125359535,
-0.08165288716554642,
0.0018603448988869786,
0.08065511286258698,
-0.05960296839475632,
0.029842179268598557,
-0.05788083374500275,
-0.0940600112080574,
-0.012426434084773064,
0.0021567775402218103,
-0.01124629471451044,
-0.029799100011587143,
0.0011340982746332884,
-0.05403468757867813,
-0.09008468687534332,
0.044640135020017624,
-0.008240142837166786,
-0.05399107560515404,
-0.029458073899149895,
-0.024543503299355507,
0.08927067369222641,
-0.053960639983415604,
-0.12852931022644043,
-0.06997630000114441
] | 14,397 |
14,400 |
Follow up observations of GX 339-4 with AstroSat
|
Nazma Husain(Jamia Millia Islamia), Sneha Prakash Mudambi(CHRIST (Deemed to be University)), Akash Garg(Jamia Millia Islamia), Ranjeev Misra(IUCAA), Somasri Sen(Jamia Millia Islamia), Bari Maqbool (Islamic University of Science and Technology)
|
A ToO observation was undertaken of the low mass black hole X-ray binary GX 339-4 with AstroSat on 2021-02-13(MJD59258) starting from 00:54:22 to 20:06:01 for about 30 ksecs. This was a follow up to the reports by NICER(Atel#14384), SWIFT(ATel #14351, #14352), MAXI(ATel #14351,#14367), NuSTAR(ATel #14352), INTEGRAL(ATel #14354) and MeerKAT(ATel #14336) indicating an onset of an outburst. The spectra were modeled with disk and Comptonization components along with Gaussian Iron line emission in the energy range 0.5-50.0 keV. The unabsorbed flux was found to vary within 5.64e-9 to 6.52e-9 erg s-1cm-2, while the power-law index changed from 1.53 to 1.59. The inner disc temperature was found to be around KTin ~ 0.25 keV and the absorption column density was estimated to be ~ 0.46e22cm-2. We carried out timing analysis in the energy range 3.0-80.0 keV. The power spectrum showed the presence of a low frequency QPO with r.m.s ~ 6.4% and having a centroid frequency 0.11+0.01-0.01 Hz with width 0.063+0.022-0.033 Hz. Further follow up observations are encouraged. We thank the AstroSat Time Allocation team and operations team for the quick response to the ToO proposal.
|
2021-02-18 18:12:00
|
x-ray,binary,black hole,transient
|
2021-02-18
|
18:12:00
| 1,175 |
[
-0.023336360231041908,
-0.0000625715110800229,
-0.0055788429453969,
0.13320130109786987,
0.012491200119256973,
-0.051079973578453064,
-0.03230234980583191,
0.04014480859041214,
0.039908893406391144,
-0.08251629024744034,
-0.048840153962373734,
-0.06778166443109512,
0.0165859404951334,
-0.061482932418584824,
-0.029245438054203987,
-0.029438715428113937,
0.048649389296770096,
-0.05578238144516945,
-0.06024051457643509,
0.01827787421643734,
-0.007088905666023493,
0.06073521077632904,
-0.061635538935661316,
0.028502564877271652,
-0.01604199968278408,
-0.0011007159482687712,
-0.0013590565649792552,
-0.04455981403589249,
-0.04170176014304161,
-0.005992784630507231,
0.015136667527258396,
0.04065467789769173,
-0.015825869515538216,
0.032511819154024124,
0.08410149067640305,
0.0675555169582367,
0.010104557499289513,
-0.003401554422453046,
-0.05390114709734917,
-0.04582247883081436,
-0.02687377668917179,
-0.03318459168076515,
0.008794945664703846,
0.032959312200546265,
-0.04271957278251648,
-0.0042977300472557545,
-0.019358141347765923,
-0.09553132951259613,
-0.05774681270122528,
0.04429903253912926,
-0.015519356355071068,
0.007625102065503597,
0.015166325494647026,
0.0329345166683197,
0.09452687203884125,
-0.0857144221663475,
-0.07851246744394302,
-0.07462511211633682,
0.05639152228832245,
-0.005596934352070093,
0.01723913848400116,
-0.0038801911287009716,
-0.04404063895344734,
-0.0005743377842009068,
0.021771378815174103,
0.0054734982550144196,
0.009083089418709278,
-0.09926192462444305,
-0.008108838461339474,
0.017240194603800774,
0.02289019152522087,
0.04299977421760559,
-0.052704233676195145,
-0.06569910794496536,
0.010771392844617367,
0.06842570751905441,
0.052856314927339554,
-0.04055150970816612,
0.048282425850629807,
-0.025621306151151657,
0.0033465814776718616,
0.06831371784210205,
-0.029936760663986206,
-0.06077215075492859,
-0.016738591715693474,
0.019893279299139977,
-0.00040932215051725507,
0.07623568922281265,
-0.010149512439966202,
0.09366979449987411,
0.09166385233402252,
0.08862967044115067,
-0.030489565804600716,
0.010880199261009693,
0.06875564903020859,
-0.06983872503042221,
0.010412681847810745,
-0.045470964163541794,
0.04129277542233467,
0.03110501542687416,
0.01630845107138157,
0.01791657879948616,
-0.021189438179135323,
0.09491506963968277,
-0.032374218106269836,
0.039379630237817764,
0.0015809128526598215,
0.07057540863752365,
-0.11712877452373505,
0.024600861594080925,
0.03535432368516922,
-0.03473315387964249,
-0.032360274344682693,
-0.156915083527565,
0.0008011332829482853,
0.0794123038649559,
0.020263761281967163,
0.036663718521595,
-0.12379316985607147,
0.018042974174022675,
-0.051773421466350555,
-0.032300423830747604,
-0.029210589826107025,
0.046511322259902954,
-0.004863165784627199,
0.03644457459449768,
-0.10026562958955765,
7.580079812361517e-33,
0.04200234264135361,
0.010852559469640255,
-0.03988403081893921,
-0.043555110692977905,
-0.027684077620506287,
0.02664726786315441,
-0.0805998146533966,
0.0312991701066494,
-0.06001477316021919,
0.02746417373418808,
-0.04991535842418671,
0.016955126076936722,
0.023615172132849693,
-0.029134344309568405,
-0.0528026707470417,
-0.04805976152420044,
0.05976356193423271,
0.013833113014698029,
-0.08615569770336151,
0.054897602647542953,
-0.038021646440029144,
-0.030441049486398697,
-0.01834038645029068,
-0.041943904012441635,
-0.0066380929201841354,
0.12049441039562225,
0.04310046136379242,
-0.04972044378519058,
-0.042049590498209,
0.021144164726138115,
-0.02550523914396763,
-0.0042583756148815155,
-0.03369903191924095,
0.004574441350996494,
-0.04977398365736008,
-0.024112572893500328,
0.007530520670115948,
0.002117208670824766,
-0.08507172763347626,
-0.07756531238555908,
-0.02095704711973667,
0.027158288285136223,
-0.0079796789214015,
-0.03695360943675041,
0.06713687628507614,
-0.009030906483530998,
0.019808320328593254,
-0.03898939490318298,
0.013087638653814793,
0.04379933327436447,
0.03559191897511482,
-0.010486699640750885,
-0.053794488310813904,
0.047134220600128174,
0.0393378920853138,
0.04549827054142952,
0.08083536475896835,
-0.013680150732398033,
-0.01107617374509573,
0.06580142676830292,
0.0252582598477602,
0.00305382558144629,
0.007067125756293535,
0.005988257005810738,
-0.0005508302128873765,
0.05238274857401848,
-0.006655758246779442,
0.022350724786520004,
-0.062406834214925766,
0.06984895467758179,
-0.030873427167534828,
0.031830865889787674,
0.13510489463806152,
-0.006509562488645315,
0.034398362040519714,
-0.021135400980710983,
0.03356084227561951,
0.0287949051707983,
0.0338970310986042,
0.08229782432317734,
0.013315713964402676,
-0.03620811924338341,
0.10196651518344879,
-0.07578056305646896,
-0.1498250514268875,
0.02424628660082817,
-0.06389491260051727,
0.06406047940254211,
-0.002070370828732848,
-0.0629505068063736,
0.032616954296827316,
0.003732618410140276,
-0.06655798107385635,
0.0035152386408299208,
-0.1399383246898651,
-9.77404597862325e-33,
0.0003452574019320309,
0.02674473263323307,
0.002189059741795063,
0.01254838053137064,
-0.03207005187869072,
0.06338755786418915,
-0.01571134477853775,
-0.011063708923757076,
-0.044003795832395554,
-0.03797369450330734,
0.0783633217215538,
0.010477804578840733,
-0.04341495782136917,
-0.04330351576209068,
0.08585786819458008,
-0.08423370122909546,
0.03392628952860832,
0.013556082732975483,
-0.026731060817837715,
0.028240427374839783,
0.027464212849736214,
0.04589931666851044,
-0.013792433775961399,
-0.07205026596784592,
0.025362631306052208,
-0.030073266476392746,
0.057603612542152405,
0.01927780918776989,
0.0040677329525351524,
0.03518175333738327,
-0.01762537658214569,
0.02230541594326496,
-0.07281593233346939,
0.009081006050109863,
0.0612371452152729,
0.00859361607581377,
0.014988550916314125,
0.07762852311134338,
-0.08825917541980743,
-0.019045231863856316,
0.027381442487239838,
0.18895438313484192,
-0.021331781521439552,
0.06837179511785507,
0.0018525465857237577,
0.1066511869430542,
0.03868355229496956,
0.0898725762963295,
0.10195104032754898,
-0.019614407792687416,
-0.05870192125439644,
-0.07360274344682693,
-0.0020892333704978228,
0.10169696807861328,
-0.008372199721634388,
0.07639691978693008,
0.036368679255247116,
-0.028804266825318336,
-0.04573977738618851,
0.0036332709714770317,
-0.0251004621386528,
-0.03397181257605553,
0.05889448896050453,
-0.07302180677652359,
0.03159094974398613,
-0.06600727885961533,
-0.009244886226952076,
0.06803332269191742,
-0.00031964140362106264,
0.03548212721943855,
-0.027576560154557228,
-0.08726876229047775,
-0.06525656580924988,
0.01888735219836235,
0.023406147956848145,
0.026297690346837044,
-0.01984454318881035,
-0.06636182218790054,
0.022487230598926544,
-0.0007949660648591816,
0.03367675840854645,
0.051189497113227844,
0.05691065639257431,
0.014173015020787716,
0.1294253021478653,
0.0034499189350754023,
-0.057403985410928726,
-0.05437927320599556,
0.01417555008083582,
-0.04890492185950279,
-0.10346949845552444,
0.05260657146573067,
-0.010454772971570492,
0.011610172688961029,
-0.022638831287622452,
-6.814087072370967e-8,
0.02296733297407627,
0.02694263868033886,
-0.0020125247538089752,
-0.016309045255184174,
0.08450548350811005,
-0.044417254626750946,
-0.05919237807393074,
0.009567510336637497,
0.05036793276667595,
0.041062235832214355,
0.012555756606161594,
-0.04226687178015709,
-0.04558556526899338,
-0.07667134702205658,
-0.01457925420254469,
0.02997792512178421,
0.0010167888831347227,
-0.1042623445391655,
0.034419044852256775,
0.027760406956076622,
0.020355798304080963,
-0.05068322271108627,
0.039523571729660034,
-0.06705264747142792,
-0.01384967565536499,
-0.016521280631422997,
-0.016905292868614197,
0.09967364370822906,
-0.024335067719221115,
-0.028626061975955963,
-0.04253409802913666,
0.03519828990101814,
-0.007323293946683407,
-0.05682206153869629,
-0.05211607366800308,
0.050915803760290146,
-0.05965365469455719,
0.06099369004368782,
0.04564131051301956,
0.06545504182577133,
-0.03301868960261345,
-0.04714205488562584,
0.020413905382156372,
-0.007600671146064997,
-0.0911162719130516,
0.06095408648252487,
-0.07512939721345901,
-0.10968221724033356,
0.01244900282472372,
0.04223029688000679,
-0.004054814111441374,
0.0033768387511372566,
-0.009411981329321861,
-0.05604854226112366,
-0.052653420716524124,
-0.023778673261404037,
-0.005308761727064848,
-0.02245284803211689,
0.028847351670265198,
-0.029155734926462173,
0.061676088720560074,
-0.108575239777565,
-0.10464786738157272,
-0.009809598326683044
] | 14,398 |
14,401 |
INTEGRAL detects renewed activity of the Be/X-ray binary pulsar 1A 0535+262
|
I. Caballero (ESA/ESAC), C. Ferrigno (ISDC), E. Kuulkers (ESA/ESTEC), P. Kretschmar (ESA/ESAC), J. Wilms (Remeis Observatory, ECAP), F. Fuerst (ESA/ESAC), J. B. Coley (Howard Univ., NASA GSFC/CRESST), K. Pottschmidt (UMBC, NASA-GSFC/CRESST), R. Rothschild (UCSD), V. Savchenko, E. Bozzo (ISDC), L. Ducci (ISDC; IAAT), I. Kreykenbohm (Remeis Observatory, ECAP)
|
INTEGRAL has detected the Be/X-ray binary pulsar 1A 0535+262 at a flux of about 60mCrab in the 28-40 keV range during public Crab calibration observations from 2021-02-13 17:34 to 2021-02-14 06:54. X-ray activity has also been detected by other X-ray instruments (ATel #14392). The neutron star is in a binary orbit of 111.1 days (Finger et al.2006, BAAS, 38, 359), and the current detection takes place around 20 days before periastron. A giant outburst took place during the previous periastron passage in November/December 2020 (ATel #14227), which could not be observed by INTEGRAL because of visibility constraints. We performed a preliminary spectral analysis of JEMX-1 and ISGRI data. The data can be fit with a cutoff powerlaw with photon index =1.7+0.3/-0.4 and Ecut=32+18/-9 keV (90% significance), with chi2/d.o.f=27/29. A cyclotron line is not statistically required, but a model including a cyclotron line with E=46.1keV (line parameters fixed to values from Caballero et al. 2007 A&A, 465L, 21C) also describes the data well. Recurrent normal outbursts at periastron are typically observed after giant ones for this source, therefore additional X-ray activity can be expected during the upcoming periastron passages of the source, during which we encourage multi-wavelength observations.
|
2021-02-18 19:39:00
|
x-ray,binary,neutron star,pulsar,star,transient
|
2021-02-18
|
19:39:00
| 1,301 |
[
-0.025293849408626556,
-0.027104709297418594,
-0.05189816281199455,
-0.01573830097913742,
0.04999655857682228,
-0.037353985011577606,
0.004081922583281994,
0.033905986696481705,
-0.0011608090717345476,
0.03722364455461502,
-0.03833034262061119,
-0.05633667856454849,
0.06313376873731613,
0.02256827987730503,
-0.06449294835329056,
-0.04024555906653404,
-0.01161241065710783,
-0.11213704943656921,
0.07126767933368683,
0.06367158889770508,
-0.0229644738137722,
0.08524663746356964,
-0.0663762018084526,
0.041683975607156754,
-0.036928243935108185,
-0.03985904902219772,
-0.02921224571764469,
-0.1158519759774208,
-0.04335581511259079,
-0.06947417557239532,
-0.051517553627491,
0.017072828486561775,
-0.005243139341473579,
0.03334733098745346,
0.03800923377275467,
0.08270525187253952,
0.025260524824261665,
-0.07903970777988434,
-0.010851639322936535,
0.011888991110026836,
-0.02316897362470627,
-0.03813772648572922,
0.008709399960935116,
0.08437923341989517,
-0.024649448692798615,
0.020169779658317566,
0.03538365662097931,
-0.04176736995577812,
-0.013185257092118263,
0.009827245026826859,
0.06468898057937622,
0.002077213255688548,
0.018089579418301582,
0.037033017724752426,
0.11557605117559433,
-0.04416778311133385,
-0.09534190595149994,
-0.08200211077928543,
0.04193218797445297,
-0.013632670044898987,
-0.0027735154144465923,
0.05568180978298187,
0.031548872590065,
-0.019386934116482735,
0.013110884465277195,
0.025581754744052887,
-0.034957900643348694,
-0.06281900405883789,
-0.00830818247050047,
-0.02657175436615944,
0.02280157059431076,
0.0213788915425539,
-0.07644082605838776,
-0.025013430044054985,
-0.02325955219566822,
-0.0011119574774056673,
0.11869818717241287,
0.014967763796448708,
0.022785523906350136,
-0.06870147585868835,
-0.04908815771341324,
0.032369568943977356,
-0.06822465360164642,
-0.04124885052442551,
0.0019714804366230965,
0.05990533158183098,
-0.04279373958706856,
0.08531198650598526,
-0.043949615210294724,
0.09679413586854935,
0.11528260260820389,
0.020832600072026253,
-0.06881950050592422,
-0.05242634564638138,
0.08755222707986832,
-0.013878951780498028,
0.043819859623909,
0.0006787517922930419,
0.05947702005505562,
-0.02454252913594246,
0.03666768968105316,
-0.003117156447842717,
-0.06446262449026108,
0.039024535566568375,
-0.02446506917476654,
-0.07649042457342148,
0.09851464629173279,
0.06289025396108627,
-0.006875869818031788,
0.05554533377289772,
-0.04354415088891983,
-0.04352753236889839,
0.0009222375229001045,
-0.05256035923957825,
0.028385205194354057,
0.08138838410377502,
0.013643049634993076,
0.037699103355407715,
-0.04304581880569458,
-0.06902340799570084,
-0.02365138940513134,
0.03439263626933098,
-0.01874253712594509,
0.1158144623041153,
-0.00325210765004158,
0.0015973806148394942,
-0.0823221206665039,
5.709250063643122e-33,
0.0049474104307591915,
0.03793024271726608,
0.03367943316698074,
0.01301815640181303,
-0.08361746370792389,
0.022210251539945602,
-0.013195817358791828,
0.02020212635397911,
-0.014164707623422146,
0.005137034226208925,
-0.07096028327941895,
0.08041410148143768,
-0.0021611882839351892,
-0.05600208044052124,
-0.02027561515569687,
-0.02625841461122036,
-0.017495455220341682,
0.06370062381029129,
-0.10915391147136688,
-0.015631550922989845,
-0.03813201189041138,
-0.026260854676365852,
-0.05382588878273964,
0.010823393240571022,
0.02806045114994049,
0.05364968627691269,
-0.02638402208685875,
-0.04265385866165161,
0.01864880695939064,
0.01749034970998764,
-0.016299275681376457,
-0.013590872287750244,
-0.008524204604327679,
0.06922323256731033,
-0.03761446475982666,
-0.06034986674785614,
-0.05294903740286827,
0.04679165780544281,
-0.10588386654853821,
-0.008710500784218311,
0.1072784960269928,
0.010409915819764137,
-0.030233100056648254,
-0.008206341415643692,
0.07089349627494812,
-0.04698663204908371,
0.03285318985581398,
0.007017551455646753,
0.015687374398112297,
-0.03439336642622948,
0.038375016301870346,
0.04098288342356682,
-0.05840707942843437,
-0.04659300670027733,
0.043747395277023315,
0.10738398879766464,
0.039275873452425,
-0.011148516088724136,
-0.04086257144808769,
0.06711931526660919,
0.05636350437998772,
0.0640963464975357,
0.006708692759275436,
0.020102424547076225,
-0.030826350674033165,
0.06051396206021309,
-0.047998588532209396,
0.023949913680553436,
-0.021046457812190056,
0.0002496352244634181,
-0.1076512485742569,
0.004108124878257513,
0.062223274260759354,
-0.09882356971502304,
0.03006230853497982,
-0.021926216781139374,
-0.06940837949514389,
0.03564693406224251,
0.029881993308663368,
0.02071993798017502,
-0.038479823619127274,
-0.07983647286891937,
0.07478760182857513,
-0.08591430634260178,
-0.038895562291145325,
0.018420899286866188,
0.05567342787981033,
0.044021815061569214,
-0.0020207485649734735,
0.05418151244521141,
0.03641354665160179,
-0.08087222278118134,
-0.042568497359752655,
-0.054019950330257416,
-0.09923882782459259,
-7.601544339207532e-33,
-0.04030866548418999,
-0.05527633801102638,
0.042747609317302704,
0.01250099390745163,
-0.03387659788131714,
0.0472375713288784,
0.04911928251385689,
-0.009826308116316795,
0.01194375567138195,
-0.07378995418548584,
0.03808361664414406,
0.0637395903468132,
-0.026491893455386162,
-0.08259762078523636,
0.032784055918455124,
0.050516825169324875,
-0.009408455342054367,
0.049938954412937164,
-0.09055721759796143,
-0.015950733795762062,
-0.008965863846242428,
0.04325100779533386,
0.06347529590129852,
-0.0267596784979105,
-0.06545326113700867,
0.056537266820669174,
0.034402452409267426,
0.017849920317530632,
0.041650015860795975,
0.010128151625394821,
-0.05292171984910965,
0.026302983984351158,
-0.002620157552883029,
0.0006406201282516122,
-0.07283957302570343,
-0.09036638587713242,
0.01104546245187521,
0.02340444177389145,
-0.03584976866841316,
-0.017139283940196037,
-0.01413298211991787,
0.14613628387451172,
-0.07083000242710114,
0.022717123851180077,
-0.04674233868718147,
0.1281343698501587,
0.07353819161653519,
0.03232158347964287,
0.06134215369820595,
0.008822797797620296,
-0.022379877045750618,
-0.03574207052588463,
0.02742060273885727,
0.09949168562889099,
-0.011340754106640816,
0.05416954308748245,
-0.09000786393880844,
0.05295378342270851,
0.057513147592544556,
-0.02641192451119423,
0.027858946472406387,
-0.029891585931181908,
0.018419736996293068,
-0.05891232565045357,
0.04662003740668297,
-0.1265684813261032,
0.007164262235164642,
0.044559091329574585,
-0.0093001089990139,
0.012707214802503586,
0.05514118820428848,
-0.06670335680246353,
-0.0755678191781044,
-0.016159743070602417,
0.019770830869674683,
0.011520164087414742,
-0.0014063771814107895,
-0.07957063615322113,
0.021987134590744972,
0.0006967984954826534,
-0.07379075139760971,
0.1209506243467331,
-0.018338453024625778,
-0.04096188396215439,
0.11007429659366608,
0.028605785220861435,
0.006978820078074932,
0.01698065549135208,
-0.0015114223351702094,
-0.07263676077127457,
-0.062377333641052246,
0.0469738207757473,
-0.035293422639369965,
0.0028434095438569784,
0.04213796928524971,
-5.863194019184448e-8,
0.012937556952238083,
0.01870713382959366,
-0.06855595111846924,
-0.03160049766302109,
0.03986095264554024,
-0.012905159033834934,
-0.06135663017630577,
0.027247285470366478,
0.03978157415986061,
0.006045139394700527,
0.019960684701800346,
-0.04972260445356369,
0.045172352343797684,
-0.10891402512788773,
0.042947664856910706,
-0.053883738815784454,
-0.00034938150201924145,
-0.07371383160352707,
-0.006410934962332249,
-0.012479321099817753,
-0.01675734668970108,
-0.015157995745539665,
0.007370504084974527,
-0.026907026767730713,
-0.02730727382004261,
0.022099314257502556,
0.012552749365568161,
0.004478450398892164,
0.0244198776781559,
-0.005671132355928421,
-0.06482960283756256,
-0.0043708886951208115,
-0.027408814057707787,
-0.036549344658851624,
0.00787197146564722,
0.0927097424864769,
-0.039179228246212006,
0.06127899885177612,
0.07846303284168243,
0.14762122929096222,
0.017268938943743706,
-0.09475310146808624,
0.004340324550867081,
0.03436729684472084,
-0.0798904076218605,
0.0477600172162056,
-0.050103235989809036,
0.0018827697494998574,
-0.010232914239168167,
-0.0076395124197006226,
-0.003621673211455345,
0.01533461082726717,
-0.024264464154839516,
-0.10817425698041916,
-0.008801529183983803,
0.09149574488401413,
-0.012042973190546036,
-0.08853159844875336,
-0.03888123854994774,
0.03774246945977211,
0.07250811904668808,
-0.05594531074166298,
-0.05024268478155136,
-0.007278799545019865
] | 14,399 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.