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Title:
Origin of the Black Hole Mass - Bulge Velocity Dispersion Relation: A Critical Surface Density For Disk Accretion
Authors:
Cen, Renyue
Publication:
eprint arXiv:astro-ph/0610053
Publication Date:
10/2006
Origin:
ARXIV
Keywords:
Astrophysics
Comment:
10 pages, 3 figures, submitted to ApJL
Bibliographic Code:
2006astro.ph.10053C

Abstract

It is shown that, if gas accretion via a disk onto the central supermassive black hole is efficient only for surface density Sigma >= 10 g/cm^2, the black hole mass - galactic bulge velocity dispersion relation (Tremaine et al 2002) is naturally borne out, so is the modest dispersion in that relation, in the context of hierarchical structure formation theory. This relation is not expected to evolve with redshift in this model.
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arXiv e-prints