2023Natur.623..927H

Query : 2023Natur.623..927H

2023Natur.623..927H - Nature, 623, 927-931 (2023/November-0)

Minutes-duration optical flares with supernova luminosities.

HO A.Y.Q., PERLEY D.A., CHEN P., SCHULZE S., DHILLON V., KUMAR H., SURESH A., SWAIN V., BREMER M., SMARTT S.J., ANDERSON J.P., ANUPAMA G.C., AWIPHAN S., BARWAY S., BELLM E.C., BEN-AMI S., BHALERAO V., DE BOER T., BRINK T.G., BURRUSS R., CHANDRA P., CHEN T.-W., CHEN W.-P., COOKE J., COUGHLIN M.W., DAS K.K., DRAKE A.J., FILIPPENKO A.V., FREEBURN J., FREMLING C., FULTON M.D., GAL-YAM A., GALBANY L., GAO H., GRAHAM M.J., GROMADZKI M., GUTIERREZ C.P., HINDS K.-R., INSERRA C., NAYANA A.J., KARAMBELKAR V., KASLIWAL M.M., KULKARNI S., MULLER-BRAVO T.E., MAGNIER E.A., MAHABAL A.A., MOORE T., NGEOW C.-C., NICHOLL M., OFEK E.O., OMAND C.M.B., ONORI F., PAN Y.-C., PESSI P.J., PETITPAS G., POLISHOOK D., POSHYACHINDA S., PURSIAINEN M., RIDDLE R., RODRIGUEZ A.C., RUSHOLME B., SEGRE E., SHARMA Y., SMITH K.W., SOLLERMAN J., SRIVASTAV S., STROTJOHANN N.L., SUHR M., SVINKIN D., WANG Y., WISEMAN P., WOLD A., YANG S., YANG Y., YAO Y., YOUNG D.R. and ZHENG W.

Abstract (from CDS):

In recent years, certain luminous extragalactic optical transients have been observed to last only a few days. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae), whose timescale is weeks. Some short-duration transients, most notably AT2018cow (ref. ), show blue optical colours and bright radio and X-ray emission. Several AT2018cow-like transients have shown hints of a long-lived embedded energy source, such as X-ray variability, prolonged ultraviolet emission, a tentative X-ray quasiperiodic oscillation and large energies coupled to fast (but subrelativistic) radio-emitting ejecta. Here we report observations of minutes-duration optical flares in the aftermath of an AT2018cow-like transient, AT2022tsd (the 'Tasmanian Devil'). The flares occur over a period of months, are highly energetic and are probably nonthermal, implying that they arise from a near-relativistic outflow or jet. Our observations confirm that, in some AT2018cow-like transients, the embedded energy source is a compact object, either a magnetar or an accreting black hole.


Abstract Copyright: 2023 The Author(s), under exclusive licence to Springer Nature Limited

Journal keyword(s):

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 AT 2018lug ev 02 00 15.19 +16 47 57.3           ~ 54 0
2 DES16X1eho ev 02 21 22.870 -04 31 32.64           ~ 6 0
3 AT 2020afay ev 02 36 10.52 -03 10 59.0           ~ 5 0
4 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
5 AT 2020abfi ev 02 51 10.201 +48 39 28.71           ~ 2 0
6 QSO B0256+075 Bla 02 59 27.07662321 +07 47 39.6429924   18 18 16.9   ~ 210 1
7 QSO B0306+101 Bla 03 09 03.62349423 +10 29 16.3409179   18.45   19.91   ~ 214 1
8 PSO J050.0451+08.7492 G 03 20 10.8 +08 44 57           ~ 1 0
9 AT 2022tsd ev 03 20 10.863 +08 44 55.63           ~ 18 0
10 QSO B0319+12 QSO 03 21 53.10350560 +12 21 13.9537765   19 19     ~ 137 1
11 4C 05.14 rG 03 23 20.2607119272 +05 34 11.891999568     19     ~ 82 1
12 QSO B0420-0127 Bla 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1263 3
13 EM* LkHA 101 Em* 04 30 14.4355820328 +35 16 23.983198932   17.91 15.71 13.33   F 376 1
14 AT 2022abfc ev 04 51 19.197 -26 58 41.60           ~ 1 0
15 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
16 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1573 1
17 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
18 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 2683 0
19 AT 2022cmc ev 13 34 43.207 +33 13 00.54           ~ 79 0
20 SN 2020mrf SN* 15 47 54.163 +44 39 07.41           SNII 37 0
21 SN 2018cow SN* 16 16 00.254 +22 16 05.10           SNIb 305 0
22 SWIFT J164449.3+573451 G 16 44 47.81184000 +57 35 00.7113480           ~ 533 0
23 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
24 AT 2019aagq ev 19 05 43.693 +25 17 04.02           ~ 1 0
25 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1928 2
26 GRB 070610 X 19 55 09.60 +26 14 06.7           ~ 59 0
27 AT 2018mbi ev 19 57 23.554 +13 12 20.12           ~ 1 0
28 AT 2017hfo CV* 20 14 29.500 +19 07 13.08           ~ 1 0
29 AT 2021ahuo ev 20 28 21.089 -09 04 23.62           ~ 1 0
30 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 837 0
31 AT 2019qcm ev 21 40 28.071 +37 24 29.97           ~ 1 0
32 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
33 SNLS 04D4ec SN* 22 16 29.286 -18 11 04.13           ~ 14 1
34 AT 2020xnd ev 22 20 02.030 -02 50 25.30           ~ 66 0
35 AT 2018gvq ev 23 38 34.36 +70 01 48.9           ~ 2 0

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