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| Paper: |
Oscillation of Galactic Nuclei with a Central Massive Object |
| Volume: |
182, Galaxy Dynamics: A Rutgers Symposium |
| Page: |
75 |
| Authors: |
Taga, M. |
| Abstract: |
In this paper we present positional oscillations of a central massive object, which is presumably a supermassive black hole, in a dense stellar system of a galactic nucleus. We performed an N-body simulation of a spherical stellar system and a linear modal analysis of a disk, both of which harbor a massive point-like object at the center. These two studies suggest that a stellar system is fragile to m = 1 disturbance if there is a massive object at its center, which is displaced from the center due to the unstable oscillation of the stellar system. Such an oscillation emerges if the mass of the central object is smaller than 10% of the stellar system, and can be a gas fueling mechanism in active galactic nuclei. |
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