2004A&A...426..379D


Query : 2004A&A...426..379D

2004A&A...426..379D - Astronomy and Astrophysics, volume 426, 379-385 (2004/11-1)

A super massive black hole binary in 3C 66B: Future observational perspectives.

DE PAOLIS F., INGROSSO G. and NUCITA A.A.

Abstract (from CDS):

Supermassive black hole binaries (SMBHBs) may exist in the centers of galaxies and active galactic nuclei (AGN) and are expected to be fairly common in the Universe as a consequence of merging processes between galaxies. The existence of SMBHBs can be probed by looking for double nuclei in galaxy centers or, more easily, detecting periodic behavior in the observed radio light curves. In a recent paper, Sudou et al. (2003Sci...300.1263S) announced the first direct observation of an SMBHB. Using VLBI observations they found that the unresolved radio core of the radio galaxy 3C66B shows a well defined elliptical motion with a period of 1.05±0.03yr, implying the presence of a couple of massive black holes in the center of the galaxy. In the present paper we study the astrophysical implications of the existence of such an SMBHB in 3C66B. In particular we focus on the information that can be obtained from detecting a signal periodicity either in the X-ray and/or γ-ray light curves as a consequence of the motion of the black holes. These observations could be used to extract further information on the physical parameters of the SMBHB and partially solve the system parameter degeneracy. The detection of the gravitational wave spectrum emitted by such system may be used to completely determine the physical parameters of the binary system.

Abstract Copyright:

Journal keyword(s): gravitation - black hole physics - X-ray: general

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 858 1
2 UGC 1841 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 547 2
3 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2225 1
4 Mrk 421 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2568 1
5 NGC 4253 Sy1 12 18 26.5163572920 +29 48 46.531535472   14.34 13.57     ~ 1009 1
6 4C 39.49 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2067 2
7 PSR B1855+09 Psr 18 57 36.39161 +09 43 17.2322           DA 503 1

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2023.02.04-11:03:57

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