Dynamics of galactic nuclei: Mass segregation and collisions
Astrophysics
2009-11-13 v1
Abstract
Massive black holes (MBHs) with a mass below ~ 1e7 Msun are likely to reside at the centre of dense stellar nuclei shaped by 2-body relaxation, close interactions with the MBH and direct collisions. In this contribution, we stress the role of mass segregation of stellar-mass black holes into the innermost tenths of a parsec and point to the importance of hydrodynamical collisions between stars. At the Galactic centre, collisions must affect giant stars and some of the S-stars.
Cite
@article{arxiv.0710.0490,
title = {Dynamics of galactic nuclei: Mass segregation and collisions},
author = {Marc Freitag and James E. Dale and Ross P. Church and Melvyn B. Davies},
journal= {arXiv preprint arXiv:0710.0490},
year = {2009}
}
Comments
4 pages, 2 figures. To appear in the proceedings of IAU Symposium 245, "Formation and Evolution of Galaxy Bulges"