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Powerful winds driven by active galactic nuclei (AGN) are often invoked to play a fundamental role in the evolution of both supermassive black holes (SMBHs) and their host galaxies, quenching star formation and explaining the tight…

High Energy Astrophysical Phenomena · Physics 2015-03-26 F. Tombesi , M. Melendez , S. Veilleux , J. N. Reeves , E. Gonzalez-Alfonso , C. S. Reynolds

Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes. In turn, the active nuclei drive galactic-scale outflows…

Astrophysics of Galaxies · Physics 2022-07-28 Vivian U

Feedback from outflows driven by active galactic nuclei (AGN) can affect the distribution and properties of the gaseous halos of galaxies. We study the hydrodynamics and non-thermal emission from the forward outflow shock produced by an…

Astrophysics of Galaxies · Physics 2015-09-09 Xiawei Wang , Abraham Loeb

Feedback from accreting supermassive black holes, active galactic nuclei (AGN), is now a cornerstone of galaxy formation models. In this work, we present radiation-hydrodynamic simulations of radiative AGN feedback using the novel Arepo-RT.…

Astrophysics of Galaxies · Physics 2018-12-06 David J. Barnes , Rahul Kannan , Mark Vogelsberger , Federico Marinacci

Large scale, weakly collimated outflows are very common in galaxies with large infrared luminosities. In complex systems in particular, where intense star formation (SF) coexists with an active galactic nucleus (AGN), it is not clear yet…

Astrophysics of Galaxies · Physics 2015-10-21 Claudio Melioli , Elisabete M. de Gouveia Dal Pino

In this study, we examine photoionization outflows during the late stages of galaxy mergers, with a specific focus on the relation between observed velocity of outflowing gas and the apparent effects of dust extinction. We used the…

Astrophysics of Galaxies · Physics 2023-11-21 Naomichi Yutani , Yoshiki Toba , Keiichi Wada

We use zoom simulations to show how merger-driven disruption of the gas disc in a galaxy provides its central active galactic nucleus (AGN) with fuel to drive outflows that entrain and expel a significant fraction of the circumgalactic…

Astrophysics of Galaxies · Physics 2022-06-29 Jonathan J. Davies , Andrew Pontzen , Robert A. Crain

The origin of stellar-mass black hole mergers discovered through gravitational waves is being widely debated. Mergers in the disks of active galactic nuclei (AGN) represent a promising source of origin, with possible observational clues in…

High Energy Astrophysical Phenomena · Physics 2023-06-14 Hiromichi Tagawa , Shigeo S. Kimura , Zoltán Haiman , Rosalba Perna , Imre Bartos

During the last decade, wide-angle powerful outflows from AGN, both on parsec and kpc scales, have been detected in many galaxies. These outflows are widely suspected to be responsible for sweeping galaxies clear of their gas. We present…

Astrophysics of Galaxies · Physics 2012-01-18 Kastytis Zubovas , Andrew King

A fundamental gap in the current understanding of galaxies concerns the thermodynamical evolution of the ordinary, baryonic matter. On one hand, radiative emission drastically decreases the thermal energy content of the interstellar plasma…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 M. Gaspari , F. Brighenti , P. Temi

We summarize the results from numerical simulations of mass outflows from AGN. We focus on simulations of outflows driven by radiation from large-scale inflows. We discuss the properties of these outflows in the context of the so-called AGN…

Astrophysics of Galaxies · Physics 2015-05-18 Daniel Proga , Ryuichi Kurosawa , Kentaro Nagamine

To investigate the effect of feedback from active galactic nuclei (AGN) on their surrounding medium, we study the diffuse X-ray emission from galaxy groups and clusters by coupling the Astrophysical Plasma Emission Code (APEC) with the…

The impact of Active Galactic Nuclei (AGN) on star formation has implications for our understanding of the relationships between supermassive black holes and their galaxies, as well as for the growth of galaxies over the history of the…

Astrophysics of Galaxies · Physics 2019-04-24 David J. Rosario , Aditya Togi , Leonard Burtscher , Ric Davies , Taro Shimizu , Dieter Lutz

While in massive galaxies active galactic nuclei (AGN) feedback plays an important role, the role of AGN feedback is still under debate in dwarf galaxies. With well spatially resolved data obtained from the Multi-Unit Spectroscopic Explorer…

Astrophysics of Galaxies · Physics 2023-06-07 Zhiyuan Zheng , Yong Shi , Fuyan Bian , Xiaoling Yu , Junfeng Wang , Jianhang Chen , Xin Li , Qiusheng Gu

Active galactic nuclei (AGNs) have been proposed as plausible sites for hosting a sizable fraction of the binary black hole (BBH) mergers measured through gravitational waves (GWs) by the LIGO-Virgo-Kagra (LVK) experiment. These GWs could…

High Energy Astrophysical Phenomena · Physics 2023-11-20 J. C. Rodríguez-Ramírez , C. R. Bom , B. Fraga , R. Nemmen

AGN feedback is invoked as one of the most relevant mechanisms that shape the evolution of galaxies. Our goal is to understand the interplay between AGN feedback and the interstellar medium in M51, a nearby spiral galaxy with a modest AGN…

Many studies have considered the roles of clouds, outflows, and turbulence in producing the broad emission and absorption lines in the spectra of active galactic nuclei (AGNs). However, these are often treated as separate or even competing…

Astrophysics of Galaxies · Physics 2019-12-10 Tim Waters , Hui Li

Most massive galaxies host a supermassive black hole at their centre. Matter accretion creates an active galactic nucleus (AGN), forming a relativistic particle wind. The wind heats and pushes the interstellar medium, producing…

Astrophysics of Galaxies · Physics 2024-09-23 Martynas Laužikas , Kastytis Zubovas

I review accretion and outflow in active galactic nuclei. Accretion appears to occur in a series of very small--scale, chaotic events, whose gas flows have no correlation with the large--scale structure of the galaxy or with each other. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Andrew King

The energy emitted by active galactic nuclei (AGN) may provide a self-regulating process (AGN feedback) that shapes the evolution of galaxies. This is believed to operate along two modes: on galactic scales by clearing the interstellar…