activity
20082026
most citedA Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5

396 citations · 2.2k across the 51 of their papers we have counts for

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Showing astro-ph.COShow all

10 papers · 1 filter

astro-ph.CO2012★ 49 cited

An X-ray and Multiwavelength Survey of Highly Radio-Loud Quasars at z > 4: Jet-Linked Emission in the Brightest Radio Beacons of the Early Universe

Jianfeng Wu, W. N. Brandt, Brendan P. Miller +3

(Abridged) We present a systematic study of the X-ray and multiwavelength properties of a sample of 17 highly radio-loud quasars (HRLQs) at z > 4 with sensitive X-ray coverage from…

astro-ph.CO2012★ 5 cited

X-ray and Multiwavelength Insights into the Inner Structure of High-Luminosity Disc-Like Emitters

B. Luo, W. N. Brandt, M. Eracleous +5

We present X-ray and multiwavelength studies of a sample of eight high-luminosity active galactic nuclei (AGNs) with disc-like Hβemission-line profiles selected from the Sloan Digi…

astro-ph.CO2012

PHL 1811 Analogs: A Population of X-ray Weak Quasars

Jianfeng Wu, W. N. Brandt, Patrick B. Hall +6

We report on a population of X-ray weak quasars with similar UV emission-line properties to those of the remarkable quasar PHL 1811. All radio-quiet PHL 1811 analogs are notably X-…

astro-ph.CO2011★ 67 cited

The Lack of Torus Emission from BL Lacertae Objects: An Infrared View of Unification with WISE

Richard M. Plotkin, Scott F. Anderson, W. N. Brandt +3

We use data from the Wide-Field Infrared Survey Explorer (WISE) to perform a statistical study on the mid-infrared (IR) properties of a large number () of BL Lac objects…

astro-ph.CO2011★ 87 cited

X-ray and Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at Low Redshift

Jianfeng Wu, W. N. Brandt, Scott F. Anderson +5

(Abridged) We report on the X-ray and multiwavelength properties of 11 radio-quiet quasars with weak or no emission lines identified by the Sloan Digital Sky Survey (SDSS) with red…

astro-ph.CO2011★ 69 cited

Can we measure the accretion efficiency of Active Galactic Nuclei?

S. I. Raimundo, A. C. Fabian, R. V. Vasudevan +2

The accretion efficiency for individual black holes is very difficult to determine accurately. There are many factors that can influence each step of the calculation, such as the d…