2008ApJ...676...54C


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST15:35:39

2008ApJ...676...54C - Astrophys. J., 676, 54-69 (2008/March-3)

Tidal disruption of stellar objects by hard supermassive black hole binaries.

CHEN X., LIU F.K. and MAGORRIAN J.

Abstract (from CDS):

Supermassive black hole binaries (SMBHBs) are expected by the hierarchical galaxy formation model in ΛCDM cosmology. There is some evidence in the literature for SMBHBs in active galactic nuclei, but there are few observational constraints on the evolution of SMBHBs in inactive galaxies and gas-poor mergers. On the theoretical front, it is unclear how long is needed for a SMBHB in a typical galaxy to coalesce. In this paper we investigate the tidal interaction between stars and binary black holes (BHs) and calculate the tidal disruption rates of stellar objects by the BH components of the binary. We derive the interaction cross sections between SMBHBs and stars from intensive numerical scattering experiments with particle number ∼107 and calculate the tidal disruption rates by both single and binary BHs for a sample of realistic galaxy models, taking into account the general relativistic effects and the loss-cone refilling because of two-body interaction. We estimate the frequency of tidal flares for different types of galaxies using the BH mass function in the literature. We find that because of the three-body slingshot effect, the tidal disruption rate in the SMBHB system is more than 1 order of magnitude smaller than that in a single supermassive black hole (SMBH) system. The difference is more significant in less massive galaxies and does not depend on detailed stellar dynamical processes. Our calculations suggest that comparisons of the calculated tidal disruption rates for both single and binary BHs and the surveys of X-ray or UV flares at galactic centers could tell us whether most SMBHs in nearby galaxies are single and whether the SMBHBs formed in gas-poor galaxy mergers coalesce rapidly.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Kinematics and Dynamics - Galaxies: Nuclei - Methods: Numerical - X-Rays: Galaxies

Simbad objects: 52

goto Full paper

goto View the reference in ADS

Number of rows : 52

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 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2038 2
2 HD 3969 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11276 1
3 NGC 524 GiP 01 24 47.707 +09 32 19.65   11.5       ~ 431 1
4 NGC 596 GiG 01 32 51.906 -07 01 53.54   11.5       ~ 230 0
5 2E 0150.5-1358 ClG 01 53 00.40 -13 44 18.0           ~ 386 0
6 NGC 720 GiG 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 494 0
7 NGC 1023 IG 02 40 24.012 +39 03 47.70 10.91 10.35 9.35 7.83   ~ 617 2
8 NGC 1172 GiP 03 01 36.0614957678 -14 50 11.496465651   12.87       ~ 139 0
9 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1231 1
10 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1475 1
11 NGC 1400 EmG 03 39 30.851 -18 41 17.25 12.48 12.01 10.96 10.45   ~ 281 1
12 NGC 1426 GiG 03 42 49.0995354501 -22 06 30.172682100   12.21 11.44 10.90   ~ 185 0
13 NGC 1600 GiG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 340 0
14 NGC 1700 GiG 04 56 56.347 -04 51 56.64   12   11.14   ~ 333 1
15 NGC 2636 GiG 08 48 24.5537697495 +73 40 16.166862513   14.4       ~ 39 0
16 NGC 2832 BiC 09 19 46.853 +33 44 59.07   13.3 13.17     ~ 250 3
17 NGC 2841 LIN 09 22 02.655 +50 58 35.32 10.43 10.09 9.22     ~ 1008 1
18 NGC 3115 GiG 10 05 13.978 -07 43 06.89   11   9.37   ~ 944 2
19 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 735 1
20 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1397 0
21 NGC 3599 GiP 11 15 26.9498387938 +18 06 37.431040640   13.0       ~ 183 0
22 NGC 3605 GiG 11 16 46.622 +18 01 01.71   12.7       ~ 245 0
23 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 483 0
24 NGC 4168 Sy1 12 12 17.234 +13 12 19.27 12.58 12.11 11.18     ~ 358 2
25 NGC 4239 GiG 12 17 14.9407244878 +16 31 52.734917127   13.5       ~ 115 0
26 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 806 0
27 NGC 4387 GiG 12 25 41.6768872639 +12 48 37.809497625 13.42 13.01 12.12   10.87 ~ 374 1
28 NGC 4434 GiG 12 27 36.680 +08 09 15.52   13.2       ~ 237 0
29 NGC 4458 GiP 12 28 57.532 +13 14 30.90 13.27 12.93 12.07     ~ 392 2
30 NGC 4464 GiG 12 29 21.313 +08 09 23.63   13.5       ~ 219 0
31 NGC 4467 GiG 12 29 30.267 +07 59 34.62   15.2       ~ 163 0
32 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1989 2
33 NGC 4478 GiP 12 30 17.439 +12 19 42.88 12.82 12.36 11.45   10.17 ~ 474 1
34 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6385 3
35 NGC 4551 GiP 12 35 37.980 +12 15 50.44 13.49 12.97 12.02     ~ 337 1
36 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 941 2
37 NGC 4564 GiG 12 36 26.994 +11 26 21.55 12.51 12.05 11.12     ~ 569 1
38 NGC 4570 GiG 12 36 53.401 +07 14 47.99   11.8       ~ 315 0
39 M 59 GiG 12 42 02.322 +11 38 48.95   11.0       ~ 667 0
40 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1051 1
41 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1270 0
42 NGC 4697 GiG 12 48 35.8992791099 -05 48 02.497675635   10.97   9.83   ~ 814 0
43 NGC 4742 GiG 12 51 48.0411725334 -10 27 17.200326999   12   11.55   ~ 214 1
44 NGC 4874 LIN 12 59 35.709 +27 57 33.80 13.01 13.7 11.40 12.122 11.386 ~ 733 3
45 NGC 4889 BiC 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 659 1
46 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 591 1
47 NGC 5845 GiG 15 06 00.787 +01 38 01.77   13.8 11.20 12.06 9.94 ~ 360 0
48 NGC 5905 H2G 15 15 23.324 +55 31 01.59   13.6       ~ 254 1
49 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 689 1
50 3C 338.0 QSO 16 28 38.2447110 +39 33 04.233634   12.78 11.78     ~ 715 5
51 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 358 0
52 NGC 7768 BiC 23 50 58.555 +27 08 50.43   14.0 14.23     ~ 176 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2008ApJ...676...54C and select 'bookmark this link' or equivalent in the popup menu


2021.04.19-15:35:39

© Université de Strasbourg/CNRS

    • Contact