The masses of supermassive black holes correlate almost perfectly with the velocity dispersions of their host bulges, M• / , where = 4.8±0.5. The relation is much tighter than the relation between M• and bulge luminosity, with a scatter no larger than expected on the basis of measurement error alone. Black hole masses estimated by Magorrian et al. (1998) lie systematically above the M• - relation defined by more accurate mass estimates, some by as much as two orders of magnitude. The tightness of the M• - relation implies a strong link between black hole formation and the properties of the stellar bulge (Refer to PDF file for exact formulas).

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Also archived in: arXiv: astro-ph/0006053 v2 9 Aug 2000 AND Rutgers Astrophysics Preprint Series No. 274 We thank Avi Loeb for an illuminating discussion which served as a key motivation for this paper, and W. Dehnen, C. Joseph, J. Magorrian and M. Sarzi for comments and suggestions which improved the manuscript. LF acknowledges grant NASA NAG5-8693, and DM acknowledges grants NSF AST 96-17088 and NASA NAG5-6037. This research has made use of the NASA/IPAC Extragalactic Database (NED).ISSN:1538-4357 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

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Department, Program, or Center

School of Physics and Astronomy (COS)


RIT – Main Campus