3 papers
astro-ph1999
The PG X-ray QSO sample: Links between the UV-X-ray Continuum and Emission Lines
Beverley J. Wills, M. S. Brotherton, A. Laor +4
The UV to soft X-rays of luminous AGNs dominate their bolometric luminosity, driven by an accretion-powered dynamo at the center. These photons ionize the surrounding gas, thereby…
astro-ph1998
Hidden Quasars in Ultraluminous Infrared Galaxies
H. D. Tran, M. S. Brotherton, S. A. Stanford +1
Many ultraluminous infrared galaxies (ULIRGs) are powered by quasars hidden in the center, but many are also powered by starbursts. A simply diagnostic diagram is proposed that can…
astro-ph1998
The Intermediate Line Region and the Baldwin Effect
M. S. Brotherton, Paul J. Francis
Statistical investigations of samples of quasars have established that clusters of properties are correlated. The strongest trends among the ultraviolet emission-line properties ar…