TY - JOUR
T1 - Discovery of a z = 0.65 post-starburst BAL quasar in the DES supernova fields
AU - Mudd, D.
AU - Martini, P
AU - Tie, S.S.
AU - Lidman, Christopher
AU - McMahon, R G
AU - Banerji, Manda
AU - Davis, Tamara
AU - Peterson, Bradley M
AU - Sharp, Rob
AU - Seymour, N
AU - Childress, Michael
AU - Lewis, Geraint Francis
AU - Tucker, Brad
AU - Yuan, Fang
AU - Zhang, Bonnie
PY - 2017
Y1 - 2017
N2 - We present the discovery of a z = 0.65 low-ionization broad absorption line (LoBAL) quasar in a post-starburst galaxy in data from the Dark Energy Survey (DES) and spectroscopy from the Australian Dark Energy Survey (OzDES). LoBAL quasars are a minority of all BALs, and rarer still is that this object also exhibits broad Fe II (an FeLoBAL) and Balmer absorption. This is the first BAL quasar that has signatures of recently truncated star formation, which we estimate ended about 40 Myr ago. The characteristic signatures of an FeLoBAL require high column densities, which could be explained by the emergence of a young quasar from an early, dust-enshrouded phase, or by clouds compressed by a blast wave. The age of the starburst component is comparable to estimates of the lifetime of quasars, so if we assume the quasar activity is related to the truncation of the star formation, this object is better explained by the blast wave scenario.
AB - We present the discovery of a z = 0.65 low-ionization broad absorption line (LoBAL) quasar in a post-starburst galaxy in data from the Dark Energy Survey (DES) and spectroscopy from the Australian Dark Energy Survey (OzDES). LoBAL quasars are a minority of all BALs, and rarer still is that this object also exhibits broad Fe II (an FeLoBAL) and Balmer absorption. This is the first BAL quasar that has signatures of recently truncated star formation, which we estimate ended about 40 Myr ago. The characteristic signatures of an FeLoBAL require high column densities, which could be explained by the emergence of a young quasar from an early, dust-enshrouded phase, or by clouds compressed by a blast wave. The age of the starburst component is comparable to estimates of the lifetime of quasars, so if we assume the quasar activity is related to the truncation of the star formation, this object is better explained by the blast wave scenario.
U2 - 10.1093/mnras/stx708
DO - 10.1093/mnras/stx708
M3 - Article
VL - 468
SP - 3682
EP - 3688
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -