The interplay between AGN feedback and precipitation of the intracluster medium in simulations of galaxy groups and clusters

Author:

Nobels Folkert S J1ORCID,Schaye Joop1ORCID,Schaller Matthieu12ORCID,Bahé Yannick M1ORCID,Chaikin Evgenii1ORCID

Affiliation:

1. Leiden Observatory, Leiden University , PO Box 9513, NL-2300 RA Leiden, the Netherlands

2. Lorentz Institute for Theoretical Physics, Leiden University , PO Box 9506, NL-2300 RA Leiden, the Netherlands

Abstract

ABSTRACT Using high-resolution hydrodynamical simulations of idealized galaxy clusters, we study the interaction between the brightest cluster galaxy, its supermassive black hole (BH), and the intracluster medium (ICM). We create initial conditions for which the ICM is in hydrostatic equilibrium within the gravitational potential from the galaxy and an NFW dark matter halo. Two free parameters associated with the thermodynamic profiles determine the cluster gas fraction and the central temperature, where the latter can be used to create cool-core or non-cool-core systems. Our simulations include radiative cooling, star formation, BH accretion, and stellar and active galactic nucleus (AGN) feedback. Even though the energy of AGN feedback is injected thermally and isotropically, it leads to anisotropic outflows and buoyantly rising bubbles. We find that the BH accretion rate (BHAR) is highly variable and only correlates strongly with the star formation rate (SFR) and the ICM when it is averaged over more than $1~\rm Myr$. We generally find good agreement with the theoretical precipitation framework. In $10^{13}~\rm M_\odot$ haloes, AGN feedback quenches the central galaxy and converts cool-core systems into non-cool-core systems. In contrast, higher mass, cool-core clusters evolve cyclically. Episodes of high BHAR raise the entropy of the ICM out to the radius, where the ratio of the cooling time and the local dynamical time tcool/tdyn > 10, thus suppressing condensation and, after a delay, the BHAR. The corresponding reduction in AGN feedback allows the ICM to cool and become unstable to precipitation, thus initiating a new episode of high SFR and BHAR.

Funder

SPH

STFC

BEIS

Durham University

NWO

Horizon 2020

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 12 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Tests of subgrid models for star formation using simulations of isolated disc galaxies;Monthly Notices of the Royal Astronomical Society;2024-07-19

2. Luminous giants populate the dense Cosmic Web;Astronomy & Astrophysics;2024-06

3. The case for hot-mode accretion in Abell 2029;Monthly Notices of the Royal Astronomical Society;2024-05-06

4. Swift : a modern highly parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications;Monthly Notices of the Royal Astronomical Society;2024-03-29

5. Gas rotation and dark matter halo shape in cool-core clusters of galaxies;Astronomy & Astrophysics;2024-01-31

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3