Impact of Active Galactic Nuclei Feedback on the Dynamics of Gas: A Review across Diverse Environments

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Mojtaba Raouf, Mohammad Hossein Purabbas, Fatemeh Fazel Hesar
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引用次数: 0

Abstract

This review examines the relationship between black hole activity and kinematic gas–star misalignment in brightest group galaxies (BGGs) with different merger rates. The formation history of galaxy groups is assessed through “age-dating” as an indicator of distinct major mergers involving the BGGs. BGGs within groups characterized by a higher frequency of major mergers are more likely to host active SMBHs. A consistent correlation is identified between the level of black hole activity, as indicated by the 1.4 GHz and 325 MHz radio emissions, and the degree of kinematic misalignment between the gas and stellar components in BGGs. In dynamically fossil groups, where black hole accretion rate is relatively (∼1 dex) lower due to the lack of recent (≤1 Gyr) major mergers, there is reduced (∼30%) misalignment between the gas and stellar components of BGGs compared to non-fossil groups. Additionally, this study reveals that BGGs in non-fossil groups show higher levels of star formation rate and increased occurrence of mergers, contributing to observed color differences. Exploring the properties and dynamics of the gas disk influenced by mechanical AGN feedback through hydrodynamic simulations suggests that AGN wind-induced effects further lead to the persistent gas misalignment in the disk around the supermassive black hole.
活动星系核反馈对气体动力学的影响:不同环境下的回顾
这篇综述研究了具有不同合并率的最亮星系群(BGG)中黑洞活动与运动气体-恒星错位之间的关系。星系群的形成历史是通过 "年龄测定 "来评估的,"年龄测定 "是涉及最亮星系群的不同主要合并的指标。大合并频率较高的星系群中的 BGG 更有可能承载活跃的 SMBH。1.4 GHz 和 325 MHz 射电辐射所显示的黑洞活动水平与 BGG 中气体和恒星成分之间的运动错位程度之间存在着一致的相关性。在动态化石星团中,由于缺乏近期(≤1 Gyr)的大合并,黑洞吸积率相对较低(∼1 dex),因此与非化石星团相比,BGGs中气体和恒星成分之间的运动错位程度较低(∼30%)。此外,这项研究还发现,非化石星团中的 BGGs 恒星形成率更高,合并发生率更高,这也是观测到的颜色差异的原因。通过流体力学模拟探索受AGN机械反馈影响的气体盘的性质和动力学,表明AGN风致效应进一步导致了超大质量黑洞周围气体盘的持续错位。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.20
自引率
4.30%
发文量
567
期刊介绍: ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/​Abstracted: Web of Science SCIE Scopus CAS INSPEC Portico
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