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A Multiwavelength View of Black Holes and Outflows in Post-starburst Galaxies

Published online by Cambridge University Press:  28 October 2024

Yuanze Luo Open the ORCID record for Yuanze Luo [Opens in a new window]
Yuanze Luo*
Affiliation:
William H. Miller III Department of Physics and Astronomy Johns Hopkins University, Baltimore, MD 21218, USA
*
email: [email protected]
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Abstract

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. Post-starburst galaxies (PSBs) have quenched (significant decline in star formation rate) both recently and rapidly (≲Gyr). They are thus promising in providing insights into activities that are happening at the early stage of quenching. While studies have suggested that black hole feedback in the form of active galactic nuclei (AGN) and outflows play important roles in quenching, the details of how they impact the host galaxies and their interplay with other quenching mechanisms are still not fully understood. We find that PSBs commonly show signatures of AGN activity but they appear to be weak and/or heavily obscured. These AGN might be able to drive outflows but they are likely not strong enough to remove gas from the host galaxy. Direct evidence of AGN quenching the star formation of the host galaxy is still missing and AGN likely quench by disturbing rather than expelling the gas.

Keywords

Galaxy evolutionActive Galactic NucleiPost-starburst galaxyQuenching
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 19 , Symposium S378: Black Hole Winds at All Scales , December 2023 , pp. 53 - 56
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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 (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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