Journal Article

Correlation of black hole and bulge masses: driven by energy but correlated with momentum

Noam Soker and Yohai Meiron

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 411, issue 3, pages 1803-1808
Published in print March 2011 | ISSN: 0035-8711
Published online February 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2010.17810.x
Correlation of black hole and bulge masses: driven by energy but correlated with momentum

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We use a recent sample of 49 galaxies to show that there is a proportionality relation between the black hole mass MBH and the quantity μ≡MGσ/c, where MG is mass of the spheroidal stellar component and σ is the stellar velocity dispersion. μ is called the momentum parameter and the ratio is MBH/μ≈ 3.3. This result is applied to the penetrating-jet feedback model which argues that the correlation that holds is with a momentum-like parameter, although this feedback mechanism is based on energy balance.

Keywords: black hole physics; galaxies: bulges

Journal Article.  5152 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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