Brad is a Distinguished Visiting Astronomer at STScI. He retired from The Ohio State University in 2015 after 35 years on the faculty, the last nine as Chair of the Department of Astronomy. His primary research interest is the inner structure and physics of active galactic nuclei. He is the community co-chair (with Debra Fischer of Yale) of the Science and Technology Definition Team for the Large Ultraviolet, Optical, and Infrared Surveyor (LUVOIR), which is one of the four major mission concepts under study for the NASA Astrophysics Division. He is a fellow and chair of the Astronomy Section of the American Association for the Advancement of Science (AAAS). He is a former member of the NASA Advisory Council and a recipient of the NASA Exceptional Service Medal.
PhD in Astronomy, University of Arizona
BS in Physics, University of Minnesota
- Reverberation mapping of active galactic nuclei
- Nature of broad emission-lines in AGN spectra
- AGN accretion disks
Research Topics: Supermassive Black Holes; AGN and Quasars; Future Space Telescopes
ORCID ID: 0000-0001-6481-5397