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Measuring Stellar Velocity Dispersions in Active Galaxies
Jenny E. Greene, Luis C. Ho
(ABRIDGED) We present stellar velocity dispersion (sigma*) measurements for a significant sample of 40 broad-line (Type 1) active galaxies for use in testing the well-known relatio…
The M-sigma Relation in Local Active Galaxies
Jenny E. Greene, Luis C. Ho
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 velocit…
The Smallest AGN Host Galaxies
J. E. Greene, A. J. Barth, L. C. Ho
We describe our efforts to study dwarf galaxies with active nuclei, whose black holes, with masses < 10^6 M_sun, provide the best current observational constraints on the mass dist…
Estimating Black Hole Masses in Active Galaxies Using the Halpha Emission Line
Jenny E. Greene, Luis C. Ho
It has been established that virial masses for black holes in low-redshift active galaxies can be estimated from measurements of the optical continuum strength and the width of the…
A Comparison of Stellar and Gaseous Kinematics in the Nuclei of Active Galaxies
Jenny E. Greene, Luis C. Ho
To investigate the relationship between black holes and their host galaxies, many groups have used the width of the [O III] 5007 line as a substitute for the stellar velocity dispe…