273 citations · 1.3k across the 19 of their papers we have counts for
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Variability in Quasar Broad Absorption Line Outflows III. What Happens on the Shortest Time-scales?
Daniel M. Capellupo, Fred Hamann, Joseph C. Shields +2
Broad absorption lines (BALs) in quasar spectra are prominent signatures of high-velocity outflows, which might be present in all quasars and could be a major contributor to feedba…
The Sloan Digital Sky Survey quasar catalog: ninth data release
Isabelle Pâris, Patrick Petitjean, Eric Aubourg +73
We present the Data Release 9 Quasar (DR9Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog includes all BOSS objec…
Variability in Quasar Broad Absorption Line Outflows
Daniel M. Capellupo, Fred Hamann, Joseph C. Shields +3
Broad absorption lines (BALs) in quasar spectra identify high velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution. Studyi…
Narrow UV Absorption Line Outflows from Quasars
Fred Hamann, Leah Simon, Paola Rodriguez Hidalgo +1
Narrow absorption line (NAL) outflows are an important yet poorly understood part of the quasar outflow phenomenon. We discuss one particular NAL outflow that has high speeds, time…
Variability of Mini-BAL and BAL Outflows in Quasars
Paola Rodriguez Hidalgo, Fred Hamann, Michael Eracleous +3
We report the results of several programs to study the variability of high-velocity (up to 0.2c) mini-"broad absorption lines" (mini-BALs) and BALs in quasar spectra, and thus to b…
Variability in quasar broad absorption line outflows II. Multi-epoch monitoring of SiIV and CIV BAL variability
Daniel M. Capellupo, Fred Hamann, Joseph C. Shields +2
Broad absorption lines (BALs) in quasar spectra indicate high-velocity outflows that may be present in all quasars and could be an important contributor to feedback to their host g…