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Black Holes in Pseudobulges and Spheroidals: A Change in the Black Hole-Bulge Scaling Relations at Low Mass
Jenny E. Greene, Luis C. Ho, Aaron J. Barth
We investigate the relationship between black hole mass and host galaxy properties for active galaxies with the lowest black hole masses currently known in galaxy nuclei. Hubble Sp…
The Origin of the Intrinsic Scatter in the Relation Between Black Hole Mass and Bulge Luminosity for Nearby Active Galaxies
Minjin Kim, Luis C. Ho, Chien Y. Peng +4
We investigate the origin of the intrinsic scatter in the correlation between black hole mass (MBH) and bulge luminosity [L(bulge)] in a sample of 45 massive, local (z < 0.35) type…
Properties of Active Galaxies Deduced from H I Observations
Luis C. Ho, Jeremy Darling, Jenny E. Greene
We completed a new survey for H I emission for a large, well-defined sample of 154 nearby (z < 0.1) galaxies with type 1 AGNs. We make use of the extensive database presented in a…
The CO Tully-Fisher Relation and Implications for the Host Galaxies of High-Redshift Quasars
Luis C. Ho
The integrated line width derived from CO spectroscopy provides a powerful tool to study the internal kinematics of extragalactic objects, including quasars at high redshift, provi…
A New Sample of Low-mass Black Holes in Active Galaxies
Jenny E. Greene, Luis C. Ho
We present an expanded sample of low-mass black holes (BHs) found in galactic nuclei. Using standard virial mass techniques to estimate BH masses, we select from the Fourth Data Re…
Bulge and Halo Kinematics Across the Hubble Sequence
Luis C. Ho
The correlation between the maximum rotational velocity of the disk (v_m) and the central stellar velocity dispersion of the bulge (sigma) offers insights into the relationship bet…