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Cold Gas in Outflow: Evidence for Delayed Positive AGN Feedback

Published online by Cambridge University Press:  20 January 2023

Yu Qiu Open the ORCID record for Yu Qiu [Opens in a new window]
Yu Qiu*
Affiliation:
Kavli Institute for Astronomy and Astrophysics, Peking University, 5 Yiheyuan Road, Haidian District, Beijing 100871, China
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Abstract

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Multiphase outflows driven by active galactic nuclei (AGN) have a profound impact on the evolution of their host galaxies. The effects of AGN feedback are especially prominent in the brightest cluster galaxies (BCGs) of cool-core clusters, where there is a concentration of gas in all phases, ranging from cold molecular gas to hot, >107 K ionized plasma. In this proceeding I describe recent simulation efforts to understand the formation and evolution of the 10-kpc-scale Hα-emitting filaments driven by AGN activities. Combined with observed star formation regions co-spatial with the filaments, this feedback mechanism can directly contribute to the growth of the central galaxy, albeit delayed by the characteristic radiative cooling timescale, ∼10 Myr, of the outflowing plasma.

Keywords

ISM: jets and outflowsgalaxies: activecooling flowsmethods: numerical
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S362: The Predictive Power of Computational Astrophysics as a Discovery Tool , June 2020 , pp. 82 - 86
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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