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2.11. Oscillation of a stellar system by a central massive object

Published online by Cambridge University Press:  25 May 2016

M. Taga
M. Taga*
Affiliation:
National Astronomical Observatory of Japan, Ohsawa 2-21-1, Mitaka, Tokyo 181, JAPAN

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We investigated the oscillation of a dense stellar system which harbours a massive object, presumably a supermassive black hole, in its center. The central mass moves in response to the oscillation of the stellar system. This phenomenon may explain the asymmetric structure observed in M31 (Lauer et al., 1993), or NGC4486B (Lauer et al., 1996). Moreover, the motion of the central massive black hole may well induce the accretion of gas onto the black hole itself and ignite the activity in galactic nuclei. We first investigated the stability of a fluid disk around a massive object by linear modal analysis. Next, we performed N-body simulations for spherically symmetric, rotating, particle systems with a central mass.

Type
Part I. Stellar Cluster, Star Formation
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 79 - 80
Copyright
Copyright © Kluwer 1998 

References

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