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Title:
Dynamics of galactic nuclei: mass segregation and collisions
Authors:
Freitag, Marc; Dale, James E.; Church, Ross P.; Davies, Melvyn B.
Affiliation:
AA(Institute of Astronomy, Madingley road, Cambridge, CB3 0HA, UK ), AB(Lund Observatory, Box 43, SE 22100, Lund, Sweden), AC(Lund Observatory, Box 43, SE 22100, Lund, Sweden; Centre for Stellar and Planetary Astrophysics, Monash University, Vic. 3800, Australia), AD(Lund Observatory, Box 43, SE 22100, Lund, Sweden)
Publication:
Formation and Evolution of Galaxy Bulges, Proceedings of the International Astronomical Union, IAU Symposium, Volume 245, p. 211-214
Publication Date:
07/2008
Origin:
CUP
DOI:
10.1017/S1743921308017675
Bibliographic Code:
2008IAUS..245..211F

Abstract

Massive black holes (MBHs) with a mass below ~ 107 Mȯ 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.
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