期刊
ASTROPHYSICAL JOURNAL
卷 619, 期 2, 页码 L151-L154出版社
IOP PUBLISHING LTD
DOI: 10.1086/428365
关键词
galaxies : active; galaxies : kinematics and dynamics; galaxies : nuclei; galaxies : Seyfert
To examine the relationship between black hole mass and host galaxy velocity dispersion for low black hole masses, we have measured the velocity dispersions of 15 Seyfert 1 galaxies from the recent catalog of Greene & Ho. These Seyfert galaxies were selected from the Sloan Digital Sky Survey to have estimated black hole masses below 10(6) M-.. The data are consistent with a straightforward downward extrapolation of the local M-BH-sigma relation, indicating that this correlation extends over a range of more than 4 orders of magnitude in black hole mass. The rms scatter of the sample about the extrapolated M-BH-sigma relation is 0.57 dex, consistent with the expected scatter of single-epoch mass estimates for Seyfert 1 galaxies.
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