Details

Autor(en) / Beteiligte

• Denney, Kelly D
• Bentz, Misty C
• Peterson, Bradley M
• Pogge, Richard W
• Cackett, Edward M
• Dietrich, Matthias
• Fogel, Jeffrey K. J
• Ghosh, Himel
• Horne, Keith D
• Kuehn, Charles
• Minezaki, Takeo
• Onken, Christopher A
• Pronik, Vladimir I
• Richstone, Douglas O
• Sergeev, Sergey G
• Vestergaard, Marianne
• Walker, Matthew G
• Yoshii, Yuzuru

Titel

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

Ist Teil von

• The Astrophysical journal, 2006-12, Vol.653 (1), p.152-158

Ort / Verlag

Chicago, IL: IOP Publishing

Erscheinungsjahr

2006

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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 Hb emission-line light curve with the optical continuum light curve reveals an emission-line time delay of t sub(cent) = 3.73 c 0.75 days. By combining this time delay with the Hb line width, we derive a central black hole mass of M sub(BH) = (9.8 c 2.1) x 10 super(6) M sub( ), an improvement in precision of a factor of several over past results.