Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields

Dale Mudd; Paul Martini; Suk Sien Tie; Chris Lidman; Richard McMahon; Manda Banerji; Tamara Davis; Bradley Peterson; Rob Sharp; Michael Childress; Geraint Lewis; Brad Tucker; Fang Yuan; Tim Abbot; Filipe Abdalla; Sahar Allam; Aurelien Benoit-Levy; Emmanuel Bertin; David Brooks; A. Camero Rosell; Matias Carrasco Kind; Jorge Carretero; Luiz N. da Costa; Shantanu Desai; Thomas Diehl; Tim Eifler; David Finley; Brenna Flaugher; Karl Glazebrook; Daniel Gruen; Robert Gruendl; Gaston Gutierrez; Samuel Hinton; Klaus Honscheid; David James; Kyler Kuehn; Nikolav Kuropatkin; Edward Macaulay; M. A. G. Maia; Ramon Miquel; Ricardo Ogando; Andres Plazas; Kevin Riel; Eusebio Sanchez; Basillio Santiago; Michael Schubnell; Ignacio Sevilla-Noarbe; R. C. Smith; Marcelle Soares-Santos; Daniel Thomas; Dark Energy Survey Collaboration

doi:10.1093/mnras/stx708

Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields

Dale Mudd, Paul Martini, Suk Sien Tie, Chris Lidman, Richard McMahon, Manda Banerji, Tamara Davis, Bradley Peterson, Rob Sharp, Michael Childress, Geraint Lewis, Brad Tucker, Fang Yuan, Tim Abbot, Filipe Abdalla, Sahar Allam, Aurelien Benoit-Levy, Emmanuel Bertin, David Brooks, A. Camero RosellMatias Carrasco Kind, Jorge Carretero, Luiz N. da Costa, Shantanu Desai, Thomas Diehl, Tim Eifler, David Finley, Brenna Flaugher, Karl Glazebrook, Daniel Gruen, Robert Gruendl, Gaston Gutierrez, Samuel Hinton, Klaus Honscheid, David James, Kyler Kuehn, Nikolav Kuropatkin, Edward Macaulay, M. A. G. Maia, Ramon Miquel, Ricardo Ogando, Andres Plazas, Kevin Riel, Eusebio Sanchez, Basillio Santiago, Michael Schubnell, Ignacio Sevilla-Noarbe, R. C. Smith, Marcelle Soares-Santos, Daniel Thomas, Dark Energy Survey Collaboration

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Abstract

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 FeII (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.

Original language	English
Pages (from-to)	3682-3688
Journal	Monthly Notices of the Royal Astronomical Society
Volume	468
Issue number	3
Early online date	23 Mar 2017
DOIs	https://doi.org/10.1093/mnras/stx708
Publication status	Published - Jul 2017

Keywords

astro-ph.GA
astro-ph.CO
RCUK
STFC

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10.1093/mnras/stx708

Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Mudd, D., Martini, P., Tie, S. S., Lidman, C., McMahon, R., Banerji, M., Davis, T., Peterson, B., Sharp, R., Childress, M., Lewis, G., Tucker, B., Yuan, F., Abbot, T., Abdalla, F., Allam, S., Benoit-Levy, A., Bertin, E., Brooks, D., ... Dark Energy Survey Collaboration (2017). Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields. Monthly Notices of the Royal Astronomical Society, 468(3), 3682-3688. https://doi.org/10.1093/mnras/stx708

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title = "Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields",

abstract = "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 FeII (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.",

keywords = "astro-ph.GA, astro-ph.CO, RCUK, STFC",

author = "Dale Mudd and Paul Martini and Tie, {Suk Sien} and Chris Lidman and Richard McMahon and Manda Banerji and Tamara Davis and Bradley Peterson and Rob Sharp and Michael Childress and Geraint Lewis and Brad Tucker and Fang Yuan and Tim Abbot and Filipe Abdalla and Sahar Allam and Aurelien Benoit-Levy and Emmanuel Bertin and David Brooks and Rosell, {A. Camero} and Kind, {Matias Carrasco} and Jorge Carretero and Costa, {Luiz N. da} and Shantanu Desai and Thomas Diehl and Tim Eifler and David Finley and Brenna Flaugher and Karl Glazebrook and Daniel Gruen and Robert Gruendl and Gaston Gutierrez and Samuel Hinton and Klaus Honscheid and David James and Kyler Kuehn and Nikolav Kuropatkin and Edward Macaulay and Maia, {M. A. G.} and Ramon Miquel and Ricardo Ogando and Andres Plazas and Kevin Riel and Eusebio Sanchez and Basillio Santiago and Michael Schubnell and Ignacio Sevilla-Noarbe and Smith, {R. C.} and Marcelle Soares-Santos and Daniel Thomas and {Dark Energy Survey Collaboration}",

note = "7 pages, 4 figures, and 1 table; Submitted to MNRAS. For a brief video summarizing the paper, please see the Coffee Brief at this link: https://www.youtube.com/watch?v=jLhHSFU9u3g=",

year = "2017",

month = jul,

doi = "10.1093/mnras/stx708",

language = "English",

volume = "468",

pages = "3682--3688",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

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}

Mudd, D, Martini, P, Tie, SS, Lidman, C, McMahon, R, Banerji, M, Davis, T, Peterson, B, Sharp, R, Childress, M, Lewis, G, Tucker, B, Yuan, F, Abbot, T, Abdalla, F, Allam, S, Benoit-Levy, A, Bertin, E, Brooks, D, Rosell, AC, Kind, MC, Carretero, J, Costa, LND, Desai, S, Diehl, T, Eifler, T, Finley, D, Flaugher, B, Glazebrook, K, Gruen, D, Gruendl, R, Gutierrez, G, Hinton, S, Honscheid, K, James, D, Kuehn, K, Kuropatkin, N, Macaulay, E, Maia, MAG, Miquel, R, Ogando, R, Plazas, A, Riel, K, Sanchez, E, Santiago, B, Schubnell, M, Sevilla-Noarbe, I, Smith, RC, Soares-Santos, M, Thomas, D & Dark Energy Survey Collaboration 2017, 'Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields', Monthly Notices of the Royal Astronomical Society, vol. 468, no. 3, pp. 3682-3688. https://doi.org/10.1093/mnras/stx708

TY - JOUR

T1 - Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields

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 - Childress, Michael

AU - Lewis, Geraint

AU - Tucker, Brad

AU - Yuan, Fang

AU - Abbot, Tim

AU - Abdalla, Filipe

AU - Allam, Sahar

AU - Benoit-Levy, Aurelien

AU - Bertin, Emmanuel

AU - Brooks, David

AU - Rosell, A. Camero

AU - Kind, Matias Carrasco

AU - Carretero, Jorge

AU - Costa, Luiz N. da

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, M. 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, R. C.

AU - Soares-Santos, Marcelle

AU - Thomas, Daniel

AU - Dark Energy Survey Collaboration

N1 - 7 pages, 4 figures, and 1 table; Submitted to MNRAS. For a brief video summarizing the paper, please see the Coffee Brief at this link: https://www.youtube.com/watch?v=jLhHSFU9u3g=

PY - 2017/7

Y1 - 2017/7

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 FeII (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 FeII (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 - astro-ph.GA

KW - astro-ph.CO

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stx708

DO - 10.1093/mnras/stx708

M3 - Article

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 -

Discovery of a z=0.65 post-starburst BAL quasar in the DES supernova fields

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