Research field and projects
Supermassive black holes in active galactic nuclei and quasars, black hole mass determinations, black hole demographics and growth, quasar-host galaxy evolution, quasar central engine physics and structure, iron emission from active galaxies, radio-loudness of active galaxies.
A New Cosmological Distance Measure Using Active Galactic Nuclei, Watson, Denney, Vestergaard & Davis, ApJ (2011)
Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships ApJ (2006)
Mass Functions of the Active Black Holes in Distant Quasars from the Sloan Digital Sky Survey Data Release 3 ApJ (2008)
Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-selected Sample of the SDSS Fall Equatorial Stripe ApJ (2009)
An Empirical Ultraviolet Template for Iron Emission in Quasars as Derived from I Zwicky 1 ApJ (2001)