2012MNRAS.419...57F


Query : 2012MNRAS.419...57F

2012MNRAS.419...57F - Mon. Not. R. Astron. Soc., 419, 57-69 (2012/January-1)

Evolution of growing black holes in axisymmetric galaxy cores.

FIESTAS J., PORTH O., BERCZIK P. and SPURZEM R.

Abstract (from CDS):

N-body realizations of axisymmetric collisional galaxy cores (e.g. M32, M33, NGC 205, Milky Way) with embedded growing black holes are presented. Stars which approach the disruption sphere are disrupted and accreted to the black hole. We measure the zone of influence of the black hole and disruption rates in relaxation time-scales. We show that secular gravitational instabilities dominate the initial core dynamics, while the black hole is small and growing due to the consumption of stars. Later, the black hole potential dominates the core, and the loss cone theory can be applied. Our simulations show that central rotation in galaxies cannot be neglected for relaxed systems, and compare and discuss our results with the standard theory of spherically symmetric systems.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): black hole physics - gravitation - galaxies: evolution - galaxies: kinematics and dynamics - galaxies: nuclei

Simbad objects: 5

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Number of rows : 5
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 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
2 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
5 NAME Local Group GrG ~ ~           ~ 9325 0

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