NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-26 T10:15:05 PDT
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For refcode 2006ApJ...653..152D:
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Copyright by American Astronomical Society. Reproduced by permission
2006ApJ...653..152D The Mass of the Black Hole in the Seyfert 1 Galaxy NGC 4593 from Reverberation Mapping Kelly D. Denney, Misty C. Bentz, Bradley M. Peterson, Richard W. Pogge, Edward M. Cackett, Matthias Dietrich, Jeffrey K. J. Fogel, Himel Ghosh, Keith D. Horne, Charles Kuehn, Takeo Minezaki, Christopher A. Onken, Vladimir I. Pronik, Douglas O. Richstone, Sergey G. Sergeev, Marianne Vestergaard, Matthew G. Walker, and Yuzuru Yoshii 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 H{beta} emission-line light curve with the optical continuum light curve reveals an emission-line time delay of {tau}_cent_=3.73+/-0.75 days. By combining this time delay with the H{beta} line width, we derive a central black hole mass of M_BH_=(9.8+/-2.1)x10^6^ M_sun_, an improvement in precision of a factor of several over past results. Key words: Galaxies: Active, Galaxies: Nuclei, Galaxies: Seyfert
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