The Mass of the Black Hole in the Seyfert 1 Galaxy NGC 4593 from Reverberation Mapping

Authors

Kelly D. Denney, Ohio State University
Misty C. Bentz, Ohio State University
Bradley M. Peterson, Ohio State University
Richard W. Pogge, Ohio State University
Edward M. Cackett, University of St. AndrewsFollow
Matthias Dietrich, Ohio State University
Jeffrey K. J. Fogel, University of Michigan
Himel Ghosh, Ohio State University
Keith D. Horne, University of St. Andrews
Charles Kuehn, Ohio State University
Takeo Minezaki, School of Science, University of Tokyo
Christopher A. Onken, Ohio State University
Vladimir I. Pronik, Crimean Astrophysical Observatory
Douglas O. Richstone, University of Michigan
Sergey G. Sergeev, Crimean Astrophysical Observatory
Marianne Vestergaard, Steward Observatory, University of Arizona
Matthew G. Walker, University of Michigan
Yuzuru Yoshii, School of Science, Tokyo

Document Type

Article

Abstract

We present new observations leading to an improved black hole mass estimate for the Seyfert 1 galaxy NGC 4593 as part of a reverberation-mapping campaign conducted at the MDM Observatory. Cross-correlation analysis of the Hβ emission-line light curve with the optical continuum light curve reveals an emission-line time delay of τ_cent=3.73+/-0.75 days. By combining this time delay with the Hβ line width, we derive a central black hole mass of M_BH=(9.8+/-2.1)×10⁶ M_solar, an improvement in precision of a factor of several over past results.

Disciplines

External Galaxies

Comments

NOTICE IN COMPLIANCE WITH PUBLISHER POLICY: ©2006, American Astronomical Society. Available at: doi:10.1086/508533

Recommended Citation

The Mass of the Black Hole in the Seyfert 1 Galaxy NGC 4593 from Reverberation Mapping

Kelly D. Denney et al. 2006 ApJ 653 152