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Accurate AGN Black Hole Masses and the Scatter in the MBHLbulge Relationship

Published online by Cambridge University Press:  03 June 2010

C. Martin Gaskell*
Affiliation:
Astronomy Department, University of Texas, Austin, TX 78712-0259, USA Email: [email protected]
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Abstract

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A new empirical formulae is given for estimating the masses of black holes in AGNs from the Hβ velocity dispersion and the continuum luminosity at 5100 Å. It is calibrated to reverberation-mapping and stellar-dynamical estimates of black hole masses. The resulting mass estimates are as accurate as reverberation-mapping and stellar-dynamical estimates. The new mass estimates show that there is very little scatter in the MBHLbulge relationship for high-luminosity galaxies, and that the scatter increases substantially in lower-mass galaxies.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2010

References

Gaskell, C. M. 2009, submitted to ApJ [arXiv:0908.0328]Google Scholar