10.9k citations
- University of TorontoCA1.4k papers
- University of ArizonaUS1.4k papers
- University of WashingtonUS1.4k papers
- Centre National de la Recherche ScientifiqueFR1.4k papers
- Lancaster UniversityGB1.4k papers
- Columbia UniversityUS1.4k papers
- Michigan State UniversityUS1.3k papers
- Stony Brook UniversityUS1.3k papers
- McGill UniversityCA1.3k papers
- University of FreiburgDE1.3k papers
- University of MichiganUS1.3k papers
- University of BonnDE1.3k papers
9 papers · 2 filters
Biases in the Quasar Mass-Luminosity Plane
Alireza Rafiee, Patrick B. Hall
We find that the recently reported departure from the Eddington luminosity limit for the highest quasar black hole masses at a given redshift is an artifact due to biases in black…
Implications of Dramatic Broad Absorption Line Variability in the Quasar FBQS J1408+3054
Patrick B. Hall, Konstantin Anosov, R. L. White +5
We have observed a dramatic change in the spectrum of the formerly heavily absorbed `overlapping-trough' iron low-ionization broad absorption line (FeLoBAL) quasar FBQS J1408+3054.…
The Extreme High-Velocity Outflow in Quasar PG0935+417
Paola Rodríguez Hidalgo, Fred Hamann, Patrick Hall
We report the detection of OVI 1031,1037 and NV 1238,1242 absorption in a system of "mini-broad" absorption lines (mini-BALs) previously reported to have variable CIV 1548,1550 in…
Chandra X-Ray Observations of Two Unusual BAL Quasars
Jesse A. Rogerson, Patrick B. Hall, Stephanie A. Snedden +2
We report sensitive Chandra X-ray non-detections of two unusual, luminous Iron Low-Ionization Broad Absorption Line Quasars (FeLoBALs). The observations do detect a non-BAL, wide-b…
A Catalog of Quasar Properties from SDSS DR7
Yue Shen, Gordon T. Richards, Michael A. Strauss +10
We present a compilation of properties of the 105,783 quasars in the SDSS Data Release 7 (DR7) quasar catalog. In this value-added product, we compile continuum and emission line m…
The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release
Naohisa Inada, Masamune Oguri, Min-Su Shin +20
We present the second report of our systematic search for strongly lensed quasars from the data of the Sloan Digital Sky Survey (SDSS). From extensive follow-up observations of 136…