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Title:
A Physical Framework for Grand Unification of Galaxies and Active Galactic Nuclei. I. Origin of the Black Hole Mass-Bulge Velocity Dispersion Relation
Authors:
Cen, Renyue
Affiliation:
AA(Princeton University Observatory, Princeton University, Princeton, NJ; .)
Publication:
The Astrophysical Journal, Volume 654, Issue 1, pp. L37-L40. (ApJL Homepage)
Publication Date:
01/2007
Origin:
UCP
ApJ Keywords:
Accretion, Accretion Disks, Black Hole Physics, Galaxies: Formation, Stars: Formation
DOI:
10.1086/510907
Bibliographic Code:
2007ApJ...654L..37C

Abstract

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