SDSS-IV MaNGA: A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT

Edmond Cheung; David V. Stark; Song Huang; Kate H.R. Rubin; Lihwai Lin; Christy Tremonti; Kai Zhang; Renbin Yan; Dmitry Bizyaev; Médéric Boquien; Joel R. Brownstein; Niv Drory; Joseph D. Gelfand; Johan H. Knapen; Roberto Maiolino; Olena Malanushenko; Karen L. Masters; Michael R. Merrifield; Zach Pace; Kaike Pan; Rogemar A. Riffel; Alexandre Roman-Lopes; Wiphu Rujopakarn; Donald P. Schneider; John P. Stott; Daniel Thomas; Anne Marie Weijmans

doi:10.3847/0004-637X/832/2/182

SDSS-IV MaNGA: A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT

Edmond Cheung, David V. Stark, Song Huang, Kate H.R. Rubin, Lihwai Lin, Christy Tremonti, Kai Zhang, Renbin Yan, Dmitry Bizyaev, Médéric Boquien, Joel R. Brownstein, Niv Drory, Joseph D. Gelfand, Johan H. Knapen, Roberto Maiolino, Olena Malanushenko, Karen L. Masters, Michael R. Merrifield, Zach Pace, Kaike PanRogemar A. Riffel, Alexandre Roman-Lopes, Wiphu Rujopakarn, Donald P. Schneider, John P. Stott, Daniel Thomas, Anne Marie Weijmans

Physics And Astronomy

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9 Scopus citations

Abstract

The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric Hα complex with no optical counterpart that extends ≈8″ (≈6.3 kpc) beyond the effective radius of a dusty, starbursting galaxy. This Hα extension is approximately three times the effective radius of the host galaxy and displays a tail-like morphology. We analyze its gas-phase metallicities, gaseous kinematics, and emission-line ratios and discuss whether this Hα extension could be diffuse ionized gas, a gas accretion event, or something else. We find that this warm, ionized gas structure is most consistent with gas accretion through recycled wind material, which could be an important process that regulates the low-mass end of the galaxy stellar mass function.

Original language	English
Article number	182
Journal	Astrophysical Journal
Volume	832
Issue number	2
DOIs	https://doi.org/10.3847/0004-637X/832/2/182
State	Published - Dec 1 2016

Bibliographical note

Funding Information:
The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University. D.B. is supported by grant RSCF-14-22-00041. A.W. acknowledges support from a Leverhulme Early Career Fellowship. J.H.K. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) under grant number AYA2013-41243-P and thanks the Astrophysics Research Institute of Liverpool John Moores University for their hospitality, and the Spanish Ministry of Education, Culture and Sports for financial support of his visit there, through grant number PR2015-00512.

Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved.

Keywords

galaxies: abundances
galaxies: evolution
galaxies: formation
galaxies: starburst

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/0004-637X/832/2/182

Cite this

Cheung, E., Stark, D. V., Huang, S., Rubin, K. H. R., Lin, L., Tremonti, C., Zhang, K., Yan, R., Bizyaev, D., Boquien, M., Brownstein, J. R., Drory, N., Gelfand, J. D., Knapen, J. H., Maiolino, R., Malanushenko, O., Masters, K. L., Merrifield, M. R., Pace, Z., ... Weijmans, A. M. (2016). SDSS-IV MaNGA: A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT. Astrophysical Journal, 832(2), [182]. https://doi.org/10.3847/0004-637X/832/2/182

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abstract = "The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric Hα complex with no optical counterpart that extends ≈8″ (≈6.3 kpc) beyond the effective radius of a dusty, starbursting galaxy. This Hα extension is approximately three times the effective radius of the host galaxy and displays a tail-like morphology. We analyze its gas-phase metallicities, gaseous kinematics, and emission-line ratios and discuss whether this Hα extension could be diffuse ionized gas, a gas accretion event, or something else. We find that this warm, ionized gas structure is most consistent with gas accretion through recycled wind material, which could be an important process that regulates the low-mass end of the galaxy stellar mass function.",

keywords = "galaxies: abundances, galaxies: evolution, galaxies: formation, galaxies: starburst",

author = "Edmond Cheung and Stark, {David V.} and Song Huang and Rubin, {Kate H.R.} and Lihwai Lin and Christy Tremonti and Kai Zhang and Renbin Yan and Dmitry Bizyaev and M{\'e}d{\'e}ric Boquien and Brownstein, {Joel R.} and Niv Drory and Gelfand, {Joseph D.} and Knapen, {Johan H.} and Roberto Maiolino and Olena Malanushenko and Masters, {Karen L.} and Merrifield, {Michael R.} and Zach Pace and Kaike Pan and Riffel, {Rogemar A.} and Alexandre Roman-Lopes and Wiphu Rujopakarn and Schneider, {Donald P.} and Stott, {John P.} and Daniel Thomas and Weijmans, {Anne Marie}",

note = "Funding Information: The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University. D.B. is supported by grant RSCF-14-22-00041. A.W. acknowledges support from a Leverhulme Early Career Fellowship. J.H.K. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) under grant number AYA2013-41243-P and thanks the Astrophysics Research Institute of Liverpool John Moores University for their hospitality, and the Spanish Ministry of Education, Culture and Sports for financial support of his visit there, through grant number PR2015-00512. Publisher Copyright: {\textcopyright} 2016. The American Astronomical Society. All rights reserved.",

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doi = "10.3847/0004-637X/832/2/182",

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Cheung, E, Stark, DV, Huang, S, Rubin, KHR, Lin, L, Tremonti, C, Zhang, K, Yan, R, Bizyaev, D, Boquien, M, Brownstein, JR, Drory, N, Gelfand, JD, Knapen, JH, Maiolino, R, Malanushenko, O, Masters, KL, Merrifield, MR, Pace, Z, Pan, K, Riffel, RA, Roman-Lopes, A, Rujopakarn, W, Schneider, DP, Stott, JP, Thomas, D & Weijmans, AM 2016, 'SDSS-IV MaNGA: A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT', Astrophysical Journal, vol. 832, no. 2, 182. https://doi.org/10.3847/0004-637X/832/2/182

TY - JOUR

T1 - SDSS-IV MaNGA

T2 - A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT

AU - Cheung, Edmond

AU - Stark, David V.

AU - Huang, Song

AU - Rubin, Kate H.R.

AU - Lin, Lihwai

AU - Tremonti, Christy

AU - Zhang, Kai

AU - Yan, Renbin

AU - Bizyaev, Dmitry

AU - Boquien, Médéric

AU - Brownstein, Joel R.

AU - Drory, Niv

AU - Gelfand, Joseph D.

AU - Knapen, Johan H.

AU - Maiolino, Roberto

AU - Malanushenko, Olena

AU - Masters, Karen L.

AU - Merrifield, Michael R.

AU - Pace, Zach

AU - Pan, Kaike

AU - Riffel, Rogemar A.

AU - Roman-Lopes, Alexandre

AU - Rujopakarn, Wiphu

AU - Schneider, Donald P.

AU - Stott, John P.

AU - Thomas, Daniel

AU - Weijmans, Anne Marie

N1 - Funding Information: The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University. D.B. is supported by grant RSCF-14-22-00041. A.W. acknowledges support from a Leverhulme Early Career Fellowship. J.H.K. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) under grant number AYA2013-41243-P and thanks the Astrophysics Research Institute of Liverpool John Moores University for their hospitality, and the Spanish Ministry of Education, Culture and Sports for financial support of his visit there, through grant number PR2015-00512. Publisher Copyright: © 2016. The American Astronomical Society. All rights reserved.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric Hα complex with no optical counterpart that extends ≈8″ (≈6.3 kpc) beyond the effective radius of a dusty, starbursting galaxy. This Hα extension is approximately three times the effective radius of the host galaxy and displays a tail-like morphology. We analyze its gas-phase metallicities, gaseous kinematics, and emission-line ratios and discuss whether this Hα extension could be diffuse ionized gas, a gas accretion event, or something else. We find that this warm, ionized gas structure is most consistent with gas accretion through recycled wind material, which could be an important process that regulates the low-mass end of the galaxy stellar mass function.

AB - The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric Hα complex with no optical counterpart that extends ≈8″ (≈6.3 kpc) beyond the effective radius of a dusty, starbursting galaxy. This Hα extension is approximately three times the effective radius of the host galaxy and displays a tail-like morphology. We analyze its gas-phase metallicities, gaseous kinematics, and emission-line ratios and discuss whether this Hα extension could be diffuse ionized gas, a gas accretion event, or something else. We find that this warm, ionized gas structure is most consistent with gas accretion through recycled wind material, which could be an important process that regulates the low-mass end of the galaxy stellar mass function.

KW - galaxies: abundances

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: starburst

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U2 - 10.3847/0004-637X/832/2/182

DO - 10.3847/0004-637X/832/2/182

M3 - Article

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VL - 832

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M1 - 182

ER -

SDSS-IV MaNGA: A SERENDIPITOUS OBSERVATION of A POTENTIAL GAS ACCRETION EVENT

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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