NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-18 T22:40:13 PDT
Help | Comment | NED Home

For refcode 2006ApJ...641L..21G:
Retrieve 88 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2006ApJ...641L..21G The M_BH_-{sigma}_*_ Relation in Local Active Galaxies Jenny E. Greene and Luis C. Ho Abstract. We examine whether active galaxies obey the same relation between black hole mass and stellar velocity dispersion as inactive systems, using the largest published sample of velocity dispersions for active nuclei to date. The combination of 56 original measurements with objects from the literature not only increases the sample from the 15 considered previously to 88 objects but allows us to cover an unprecedented range in both stellar velocity dispersion (30 -- 268 km s^-1^) and black hole mass (10^5^ -- 10^8.6^ M_sun_). In the M_BH_-{sigma}_*_ relation of active galaxies, we find a lower zero point than the best-fit relation of Tremaine et al. for inactive galaxies, and an upper limit on the intrinsic scatter of 0.4 dex. There is also evidence of a flatter slope at low black hole masses. We discuss potential contributors to the observed offsets, including variations in the geometry of the broad-line region, evolution in the M_BH_-{sigma}_*_ relation, and differential growth between black holes and galaxy bulges. Key words: Galaxies: Active, Galaxies: Kinematics and Dynamics, Galaxies: Nuclei, Galaxies: Seyfert
Retrieve 88 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home