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

School of Physics and Astronomy

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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.

Original language	English
Article number	182
Number of pages	10
Journal	Astrophysical Journal
DOIs	https://doi.org/10.3847/0004-637X/832/2/182
Publication status	Published - 30 Nov 2016

Keywords

Galaxies: abundances
Galaxies: evolution
Galaxies: formation
Galaxies: starburst

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

Weijmans_2016_AJ_MaNGA_FinalPubVersion
© 2016 The American Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: https://dx.doi.org/10.3847/0004-637X/832/2/182
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http://adsabs.harvard.edu/abs/2016arXiv160902155C

Leverhulme Fellowship: Galaxies over Cosmic Time
Weijmans, A.-M. (CoI)
The Leverhulme Trust
1/01/15 → 31/12/17
Project: Fellowship

Sloan Digital Sky Surveys Data Release 13 (SDSS DR13)
Weijmans, A.-M. (Contributor), Sloan Digital Sky Survey (SDSS), 31 Jul 2016
http://www.sdss.org/dr13
Dataset

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, Article 182. https://doi.org/10.3847/0004-637X/832/2/182

@article{18eaebed30c14d36abc59a6fe4525663,

title = "SDSS-IV MaNGA: a serendipitous observation of a potential gas accretion event",

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 Anne-Marie Weijmans",

year = "2016",

month = nov,

day = "30",

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

language = "English",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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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, A-M 2016, 'SDSS-IV MaNGA: a serendipitous observation of a potential gas accretion event', Astrophysical Journal. 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

PY - 2016/11/30

Y1 - 2016/11/30

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

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

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

M3 - Article

SN - 0004-637X

JO - Astrophysical Journal

JF - Astrophysical Journal

M1 - 182

ER -

SDSS-IV MaNGA: a serendipitous observation of a potential gas accretion event

Abstract

Keywords

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Projects

Leverhulme Fellowship: Galaxies over Cosmic Time

Datasets

Sloan Digital Sky Surveys Data Release 13 (SDSS DR13)

Cite this