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Numerical study of active galactic nucleus feedback in an elliptical galaxy with MACER

Published online by Cambridge University Press:  07 April 2020

Feng Yuan ,
Jeremiah P. Ostriker ,
DooSoo Yoon ,
Ya-Ping Li ,
Luca Ciotti ,
Zhao-Ming Gan ,
Luis C. Ho  and
Fulai Guo
Feng Yuan
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China email: fyuan@shao.ac.cn
Jeremiah P. Ostriker
Affiliation:
Department of Astronomy, Columbia University, 550 W. 120th Street, New York, USA
DooSoo Yoon
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China email: fyuan@shao.ac.cn
Ya-Ping Li
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China email: fyuan@shao.ac.cn
Luca Ciotti
Affiliation:
Department of Physics and Astronomy, University of Bologna, 40129Bologna, Italy
Zhao-Ming Gan
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China email: fyuan@shao.ac.cn
Luis C. Ho
Affiliation:
Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing100871, China Department of Astronomy, School of Physics, Peking University, Beijing100871, China
Fulai Guo
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China email: fyuan@shao.ac.cn
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Abstract

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This paper summarizes our recent works of studying AGN feedback in an isolated elliptical galaxy by performing high-resolution hydrodynamical numerical simulations. Bondi radius is resolved and the mass accretion rate of the black hole is calculated. The most updated AGN physics, namely the discrimination of cold and hot accretion modes and the exact descriptions of the AGN radiation and wind for a given accretion rate are adopted and their interaction with the gas in the host galaxy is calculated. Physical processes such as star formation and SNe feedback are taken into account. Consistent with observation, we find the AGN spends most of the time in the low-luminosity regime. AGN feedback overall suppresses the star formation; but depending on location in the galaxy and time, it can also enhance it. The light curve of specific star formation rate is not synchronous with the AGN light curve. These results put a serious challenge to the observational test of the relation between AGN activity and star formation. We find that wind usually plays a dominant role in controlling the AGN luminosity and star formation, but radiation also cannot be neglected.

Keywords

accretion, accretion disksblack hole physicsgalaxies: evolutiongalaxies: nuclei
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S342: Perseus in Sicily: From Black Hole to Cluster Outskirts , May 2018 , pp. 101 - 107
Copyright
© International Astronomical Union 2020

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