2023NatAs...7...88P

Query : 2023NatAs...7...88P

2023NatAs...7...88P - Nature Astronomy, 7, 88-104 (2023/January-0)

The Birth of a Relativistic Jet Following the Disruption of a Star by a Cosmological Black Hole.

PASHAM D.R., LUCCHINI M., LASKAR T., GOMPERTZ B.P., SRIVASTAV S., NICHOLL M., SMARTT S.J., MILLER-JONES J.C.A., ALEXANDER K.D., FENDER R., SMITH G.P., FULTON M., DEWANGAN G., GENDREAU K., COUGHLIN E.R., RHODES L., HORESH A., VAN VELZEN S., SFARADI I., GUOLO M., CASTRO SEGURA N., AAMER A., ANDERSON J.P., ARCAVI I., BRENNAN S.J., CHAMBERS K., CHARALAMPOPOULOS P., CHEN T.-W., CLOCCHIATTI A., DE BOER T., DENNEFELD M., FERRARA E., GALBANY L., GAO H., GILLANDERS J.H., GOODWIN A., GROMADZKI M., HUBER M., JONKER P.G., JOSHI M., KARA E., KILLESTEIN T.L., KOSEC P., KOCEVSKI D., LELOUDAS G., LIN C.-C., MARGUTTI R., MATTILA S., MOORE T., MULLER-BRAVO T., NGEOW C.-C., OATES S., ONORI F., PAN Y.-C., PEREZ-TORRES M., RANI P., REMILLARD R., RIDLEY E.J., SCHULZE S., SHENG X., SHINGLES L., SMITH K.W., STEINER J.F., WAINSCOAT R., WEVERS T. and YANG S.

Abstract (from CDS):

A black hole can launch a powerful relativistic jet after it tidally disrupts a star. If this jet fortuitously aligns with our line of sight, the overall brightness is Doppler boosted by several orders of magnitude. Consequently, such on-axis relativistic tidal disruption events have the potential to unveil cosmological (redshift z > 1) quiescent black holes and are ideal test beds for understanding the radiative mechanisms operating in super-Eddington jets. Here we present multiwavelength (X-ray, UV, optical and radio) observations of the optically discovered transient AT 2022cmc at z = 1.193. Its unusual X-ray properties, including a peak observed luminosity of >= 1048 erg s-1, systematic variability on timescales as short as 1000 s and overall duration lasting more than 30 days in the rest frame, are traits associated with relativistic tidal disruption events. The X-ray to radio spectral energy distributions spanning 5-50 days after discovery can be explained as synchrotron emission from a relativistic jet (radio), synchrotron self-Compton (X-rays) and thermal emission similar to that seen in low-redshift tidal disruption events (UV/optical). Our modelling implies a beamed, highly relativistic jet akin to blazars but requires extreme matter domination (that is, a high ratio of electron-to-magnetic-field energy densities in the jet) and challenges our theoretical understanding of jets.

Abstract Copyright: ©

Journal keyword(s): Astrophysics - High Energy Astrophysical Phenomena

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 11

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Number of rows : 11
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 SWIFT J1112.2-8238 X 11 11 47.797 -82 38 44.71           ~ 81 0
2 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
3 7C 132734.79+320943.00 BLL 13 29 52.86491586 +31 54 11.0544317   20.96 20.23 19.77   ~ 74 1
4 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
5 SDSS J133443.05+331305.7 G 13 34 43.05936 +33 13 05.7288           ~ 1 0
6 AT 2022cmc ev 13 34 43.207 +33 13 00.54           ~ 79 0
7 [WHL2012] J133453.9+331004 ClG 13 34 53.90 +33 10 03.9           ~ 1 0
8 SWIFT J164449.3+573451 G 16 44 47.81184000 +57 35 00.7113480           ~ 533 0
9 SWIFT J2058.4+0516 X 20 58 19.898 +05 13 32.25           ~ 169 0
10 ASASSN -15lh ev 22 02 15.4 -61 39 34           ~ 187 1
11 GRB 220211A gB ~ ~           ~ 10 0

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