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Title:
A Fundamental Relation between Supermassive Black Holes and Their Host Galaxies
Authors:
Ferrarese, Laura; Merritt, David
Affiliation:
AA(Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095; ), AB(Department of Physics and Astronomy, Rutgers University, New Brunswick, NJ 08854; )
Publication:
The Astrophysical Journal, Volume 539, Issue 1, pp. L9-L12. (ApJL Homepage)
Publication Date:
08/2000
Origin:
UCP
ApJ Keywords:
Black Hole Physics, Galaxies: Evolution, Galaxies: Kinematics and Dynamics
DOI:
10.1086/312838
Bibliographic Code:
2000ApJ...539L...9F

Abstract

The masses of supermassive black holes correlate almost perfectly with the velocity dispersions of their host bulges, Mbh~σα, where α=4.8+/-0.5. The relation is much tighter than the relation between Mbh and bulge luminosity, with a scatter no larger than expected on the basis of measurement error alone. Black hole masses recently estimated by Magorrian et al. lie systematically above the Mbh-σ relation defined by more accurate mass estimates, some by as much as 2 orders of magnitude. The tightness of the Mbh-σ relation implies a strong link between black hole formation and the properties of the stellar bulge.
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