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Evolution of Gas Flows over the Starburst to Post-Starburst to Quiescent Galaxy Sequence

Published online by Cambridge University Press:  09 June 2023

Yang Sun Open the ORCID record for Yang Sun [Opens in a new window] ,
Gwang-Ho Lee ,
Ann I. Zabludoff ,
K. Decker French ,
Jakob M. Helton ,
Nicole A. Kerrison ,
Christy A. Tremonti  and
Yujin Yang
Yang Sun
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Gwang-Ho Lee
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA Korea Astronomy and Space Science Institute, 776 Daedeokdae-to, Yuseong-gu, Daejeon, 305-348, Republic of Korea
Ann I. Zabludoff
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
K. Decker French
Affiliation:
Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801, USA
Jakob M. Helton
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Nicole A. Kerrison
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Christy A. Tremonti
Affiliation:
Department of Astronomy, University of Wisconsin–Madison, 475 North Charter Street, Madison, WI 53703, USA
Yujin Yang
Affiliation:
Korea Astronomy and Space Science Institute, 776 Daedeokdae-to, Yuseong-gu, Daejeon, 305-348, Republic of Korea
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Abstract

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Even though galactic winds are common in galaxies with starbursts or active galactic nuclei (AGN), the role of such gas flows in galaxy evolution remains uncertain. Here we examine how winds vary along a likely evolutionary sequence connecting starburst to post-starburst to quiescent galaxies. To detect the interstellar medium and measure its bulk flows, we examine the residual Na D absorption line doublet after the stellar contribution has been removed from each galaxy’s spectrum. We discover that outflows diminish along this sequence, i.e., as star formation ends. We then focus on the wind behavior within the post-starburst sample, for which we have measured the time elapsed since the starburst ended (post-burst age) via detailed modeling of their star formation histories (French et al.2018). Even within our post-starburst sample, the fraction of galaxies with significant winds and the average wind velocities decrease with post-burst age after controlling for stellar mass.

Keywords

ISM: jets and outflowsISM: kinematics and dynamicsgalaxies: evolutiongalaxies: ISM
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S373: Resolving the Rise and Fall of Star Formation in Galaxies , August 2021 , pp. 193 - 198
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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