Supermassive Black Holes in Active Galactic Nuclei. II. Calibration of the Black Hole Mass-Velocity Dispersion Relationship for Active Galactic Nuclei
We calibrate reverberation-based black hole masses in active galactic nuclei (AGNs) by using the correlation between black hole mass, MBH, and bulge/spheroid stellar velocity dispersion, σ[sigma]∗. We use new measurements of σ[sigma]∗ for 6 AGNs and published velocity dispersions for 10 others, in conjunction with improved reverberation mapping results, to determine the scaling factor required to bring reverberation-based black hole masses into agreement with the quiescent galaxy MBH–σ[sigma]∗ relationship. The scatter in the AGN BH masses is found to be less than a factor of 3. The current observational uncertainties preclude use of the scaling factor to discriminate between broad-line region models. (Refer to PDF file for exact formulas).
Department, Program, or Center
School of Physics and Astronomy (COS)
Christopher A. Onken et al 2004 ApJ 615 645 https://doi.org/10.1086/424655
RIT – Main Campus
This is the pre-print of an article published by the American Astronomical Society. The final, published version is available here: https://doi.org/10.1086/424655
© 2004 The American Astronomical Society
Also archived in: arXiv:astro-ph/0407297 v1 14 Jul 2004
We acknowledge support for this work through NSF Grant AST0205964 to The Ohio State University. A. W. acknowledges support by BSF under grant number 1999-336.
Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.