TY - JOUR
T1 - Discovery of a z = 0.65 post-starburst BAL quasar in the DES supernova fields
AU - The DES Collaboration
AU - Mudd, Dale
AU - Martini, Paul
AU - Tie, Suk Sien
AU - Lidman, Chris
AU - McMahon, Richard
AU - Banerji, Manda
AU - Davis, Tamara
AU - Peterson, Bradley
AU - Sharp, Rob
AU - Seymour, Nicholas
AU - Childress, Michael
AU - Lewis, Geraint
AU - Tucker, Brad
AU - Yuan, Fang
AU - Abbot, Tim
AU - Abdalla, Filipe
AU - Allam, Sahar
AU - Benoit-Lévy, Aurélien
AU - Bertin, Emmanuel
AU - Brooks, David
AU - Camero Rosell, A.
AU - Kind, Matias Carrasco
AU - Carretero, Jorge
AU - da Costa, Luiz N.
AU - Desai, Shantanu
AU - Diehl, Thomas
AU - Eifler, Tim
AU - Finley, David
AU - Flaugher, Brenna
AU - Glazebrook, Karl
AU - Gruen, Daniel
AU - Gruendl, Robert
AU - Gutierrez, Gaston
AU - Hinton, Samuel
AU - Honscheid, Klaus
AU - James, David
AU - Kuehn, Kyler
AU - Kuropatkin, Nikolav
AU - Macaulay, Edward
AU - Maia, Marcio A.G.
AU - Miquel, Ramon
AU - Ogando, Ricardo
AU - Plazas, Andres
AU - Riel, Kevin
AU - Sanchez, Eusebio
AU - Santiago, Basillio
AU - Schubnell, Michael
AU - Sevilla-Noarbe, Ignacio
AU - Smith, Robert C.
AU - Soares-Santos, Marcelle
N1 - Publisher Copyright:
© 2017 The Authors.
PY - 2017/7/1
Y1 - 2017/7/1
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.
KW - Galaxies: active
KW - Galaxies: starburst
KW - Quasars: absorption lines
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U2 - 10.1093/mnras/stx708
DO - 10.1093/mnras/stx708
M3 - Article
AN - SCOPUS:85041830671
SN - 0035-8711
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 -