215 citations · 3.8k across the 118 of their papers we have counts for
3 papers · 2 filters
Detection of Rest-frame Optical Lines from X-shooter Spectroscopy of Weak Emission Line Quasars
Richard M. Plotkin, Ohad Shemmer, Benny Trakhtenbrot +10
Over the past 15 years, examples of exotic radio-quiet quasars with intrinsically weak or absent broad emission line regions (BELRs) have emerged from large-scale spectroscopic sky…
X-ray Insights into the Nature of PHL 1811 Analogs and Weak Emission-Line Quasars: Unification with a Geometrically Thick Accretion Disk?
B. Luo, W. N. Brandt, P. B. Hall +9
We present an X-ray and multiwavelength study of 33 weak emission-line quasars (WLQs) and 18 quasars that are analogs of the extreme WLQ, PHL 1811, at z ~ 0.5-2.9. New Chandra 1.5-…
An X-ray Selected Sample of Candidate Black Holes in Dwarf Galaxies
Sean Lemons, Amy Reines, Richard Plotkin +2
We present a sample of hard X-ray selected candidate black holes (BHs) in 19 dwarf galaxies. BH candidates are identified by cross-matching a parent sample of ~44,000 local dwarf g…