2007MNRAS.377.1215Z


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET18:01:05

2007MNRAS.377.1215Z - Mon. Not. R. Astron. Soc., 377, 1215-1221 (2007/May-3)

SDSS J1130+0058 an X-shaped radio source with double-peaked low-ionization emission lines: a binary black hole system?

ZHANG X.-G., DULTZIN-HACYAN D. and WANG T.-G.

Abstract (from CDS):

In this paper, we study the object SDSS J1130+0058 which is the only active galactic nuclei (AGN) known to have both double-peaked low-ionization broad emission lines and X-shaped radio structures. Emission from an accretion disc can reproduce the double-peaked line profile of broad Hα, but not the radio structure. Under the accretion disc model, the period of the inner emission-line region is about 230 yr. Using a new method to subtract the stellar component from the data of the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4), we obtain an internal reddening factor which is less than previously found. The implied smaller amount of dust disfavours the backflow model for the X-shaped radio structure. The presence of a binary black hole (BBH) system is the most natural way to explain both the optical and radio properties of this AGN. Under the assumption of the BBH model, we can estimate the BBH system has a separation of less than 0.04 pc with a period less than 59 yr; this may pose some problem to the emission-line region (BLR) sizes, still we conclude that the BBH model is favoured on the basis of the present limited information.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): accretion, accretion discs - black hole physics - galaxies: active - galaxies: jets - galaxies: nuclei

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1201 3
2 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 2060 1
3 FIRST J113020.1+005827 Rad 11 30 20.181 +00 58 27.11           ~ 1 1
4 FIRST J113020.9+005828 Rad 11 30 20.948 +00 58 28.21           ~ 1 1
5 2MASX J11302142+0058230 Sy1 11 30 21.4202517083 +00 58 23.044644843   18.45 17.75 17.696   ~ 51 2
6 FIRST J113021.6+005820 Rad 11 30 21.633 +00 58 20.00           ~ 1 1
7 FIRST J113022.4+005820 Rad 11 30 22.449 +00 58 20.74           ~ 1 1
8 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1134 0
9 MCG+08-31-041 Sy1 17 19 14.4925747 +48 58 49.426017   15.86 14.81 9.44   ~ 284 1
10 ICRF J184208.9+794617 Sy1 18 42 08.9910523393 +79 46 17.129210139   16.06 15.38     ~ 1229 0

    Equat.    Gal    SGal    Ecl

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2021.03.05-18:01:06

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