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Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations

Published online by Cambridge University Press:  09 June 2023

Yuri Oku Open the ORCID record for Yuri Oku [Opens in a new window] ,
Kengo Tomida ,
Kentaro Nagamine Open the ORCID record for Kentaro Nagamine [Opens in a new window] ,
Ikkoh Shimizu  and
Renyue Cen
Yuri Oku
Affiliation:
Theoretical Astrophysics, Department of Earth & Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan email: oku@astro-osaka.jp
Kengo Tomida
Affiliation:
Astronomical Institute, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
Kentaro Nagamine
Affiliation:
Theoretical Astrophysics, Department of Earth & Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan email: oku@astro-osaka.jp Kavli IPMU (WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan Department of Physics & Astronomy, University of Nevada, Las Vegas, 4505 S. Maryland Pkwy, Las Vegas, NV 89154-4002, USA
Ikkoh Shimizu
Affiliation:
Shikoku Gakuin University, 3-2-1 Bunkyocho, Zentsuji, Kagawa, 765-8505, Japan
Renyue Cen
Affiliation:
Theoretical Astrophysics, Department of Earth & Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan email: oku@astro-osaka.jp Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
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Abstract

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Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies. We build an SN feedback model based on high-resolution simulations of superbubble and SN-driven outflows for the physical understanding of the galaxy–CGM connection. Using an Eulerian hydrodynamic code Athena++, we find universal scaling relations for the time evolution of superbubble momentum, when the momentum and time are scaled by those at the shell-formation time. We then develop an SN feedback model utilizing Voronoi tessellation, and implement it into the GADGET3-Osaka smoothed particle hydrodynamic code. We show that our stochastic thermal feedback model produces galactic outflow that carries the metals high above the galactic plane but with weak suppression of star formation. Additional mechanical feedback further suppresses star formation. Therefore, we argue that both thermal and mechanical feedback is necessary for the SN feedback model of galaxy evolution when an individual SN bubble is unresolved.

Keywords

Galaxy formationNumerical simulationStellar feedbackSupernovaeGalactic winds
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. 181 - 185
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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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