2019ApJ...875...41Z

Query : 2019ApJ...875...41Z

2019ApJ...875...41Z - Astrophys. J., 875, 41-41 (2019/April-2)

About the Kerr nature of the stellar-mass black hole in GRS 1915+105.

ZHANG Y., ABDIKAMALOV A.B., AYZENBERG D., BAMBI C., DAUSER T., GARCIA J.A. and NAMPALLIWAR S.

Abstract (from CDS):

We employ the accretion disk reflection model RELXILL_NK to test the spacetime geometry around the stellar-mass black hole in GRS 1915+105. We adopt the Johannsen metric with the deformation parameters α13 and α22, for which the Kerr solution is recovered when α13 = α22 = 0. We analyze a NuSTAR observation of 2012, obtaining vanishing and non-vanishing values of the deformation parameters depending on the astrophysical model adopted. Similar difficulties were not found in our previous tests with other sources. The results of this work can shed light on the choice of sources suitable for testing the Kerr metric using X-ray reflection spectroscopy and on the parts of our reflection models that more urgently require improvement.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - black hole physics - gravitation

Simbad objects: 15

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Number of rows : 15
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 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1344 0
2 Ton S 180 Sy1 00 57 20.2040816832 -22 22 56.575212564   14.60 14.34 15.23   ~ 320 0
3 ESO 113-45 Sy1 01 23 45.7631533440 -58 48 20.808928944   14.08 13.83 13.34   ~ 965 0
4 LB 1727 Sy1 04 26 00.7188165240 -57 12 01.769902992 13.68 14.58 14.37 14.8   ~ 307 0
5 Z 395-23 Sy1 05 16 11.4092471904 -00 08 59.157166920   14.30 13.92     ~ 953 1
6 MCG-05-13-017 Sy2 05 19 35.8118941104 -32 39 27.923120568   13.81 13.37 12.73   ~ 274 1
7 QSO B0558-5026 BLL 05 59 47.3916612936 -50 26 52.025952120   15.18 14.97     ~ 307 1
8 LEDA 88588 Sy1 07 08 41.4886614696 -49 33 06.308921700   16.02 15.7 12.7   ~ 566 0
9 [OKM2018] SWIFT J1231.3+7073 Sy1 12 31 36.5590509432 +70 44 14.352161820     15.66     ~ 54 0
10 MCG-06-30-015 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1559 0
11 V* BW Cir HXB 13 58 09.7227337579 -64 44 05.257858491           ~ 256 0
12 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
13 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2810 0
14 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
15 Z 495-18 Sy1 22 42 39.3363009144 +29 43 31.302092640   14.86 14.16     ~ 748 1

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