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Related papers: Circum-nuclear molecular disks: role in AGN fuelin…

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Dynamical mechanisms are essential to exchange angular momentum in galaxies, drive the gas to the center, and fuel the central super-massive black holes. While at 100pc scale, the gas is sometimes stalled in nuclear rings, recent…

Astrophysics of Galaxies · Physics 2020-03-16 Francoise Combes

Radiation, winds and jets from the active nucleus of a massive galaxy can interact with its interstellar medium leading to ejection or heating of the gas. This can terminate star formation in the galaxy and stifle accretion onto the black…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 A. C. Fabian

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…

This is the second paper of a series exploring the multi-component (stars, warm and cold gas and radio jets) properties of a sample of eleven nearby low excitation radio galaxies (LERGs), with the aim of better understanding the AGN…

Galaxy-scale outflows, which are thought to provide the link connecting the central black hole to its host galaxy, are now starting to be observed. However, the physical origin of the mechanism driving the observed outflows, whether due to…

Astrophysics of Galaxies · Physics 2015-08-06 W. Ishibashi , A. C. Fabian

Radio activity in AGN (Active Galactic Nuclei) produce feedback on the host galaxy via the impact of the relativistic jets on the circumnuclear gas. Although radio jets can reach up to several times the optical radius of the host galaxy, in…

Astrophysics of Galaxies · Physics 2023-03-22 Guilherme S. Couto , Thaisa Storchi-Bergmann

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…

Active galactic nuclei (AGN) host some of the most energetic phenomena in the Universe. AGN are thought to be powered by accretion of matter onto a rotating disk that surrounds a supermassive black hole. Jet streams can be boosted in energy…

High Energy Astrophysical Phenomena · Physics 2016-04-13 Ivan Marti-Vidal , Sebastien Muller , Wouter Vlemmings , Cathy Horellou , Susanne Aalto

Feedback by Active Galactic Nuclei is often divided into quasar and radio mode, powered by radiation or radio jets, respectively. Both are fundamental in galaxy evolution, especially in late-type galaxies, as shown by cosmological…

Astrophysics of Galaxies · Physics 2018-03-28 S. Cielo , R. Bieri , M. Volonteri , A. Wagner , Y. Dubois

Active Galactic Nuclei (AGN) feedback is a key physical mechanism proposed to regulate star formation, primarily in massive galaxies. In particular, cosmic rays associated with AGN jets have the potential to efficiently suppress cooling…

Astrophysics of Galaxies · Physics 2025-02-04 Kung-Yi Su , Greg L. Bryan , Philip F. Hopkins , Priyamvada Natarajan , Sam B. Ponnada , Razieh Emami , Yue Samuel Lu

Active Galactic Nuclei (AGN) represent the growth phases of the supermassive black holes in the center of almost every galaxy. Powerful, highly ionized winds, with velocities $\sim 0.1- 0.2c$ are a common feature in X--ray spectra of…

Astrophysics of Galaxies · Physics 2015-09-23 Andrew King , Ken Pounds

The inner parts of an accretion disk around a spinning black hole are forced to align with the spin of the hole by the Bardeen-Petterson effect. Assuming that any jet produced by such a system is aligned with the angular momentum of either…

Astrophysics · Physics 2009-10-30 Priyamvada Natarajan , J. E. Pringle

The energy released by an active galactic nucleus (AGN) has a strong impact on the surrounding interstellar medium (ISM). This feedback is considered to be the regulating factor for the growth of the central massive black hole, and for the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Raffaella Morganti , Judit Fogasy , Zsolt Paragi , Tom Oosterloo , Monica Orienti

A stellar-mass black hole, embedded within the accretion disk of an active galactic nuclei (AGN), has the potential to accrete gas at a rate that can reach approximately $\sim 10^9$ times the Eddington limit. This study explores the…

High Energy Astrophysical Phenomena · Physics 2024-11-13 Zifan Tang , Yang Luo , Jian-Min Wang

Galactic outflows, driven by active galactic nuclei (AGN), play a crucial role in galaxy formation and in the self-regulated growth of supermassive black holes (BHs). AGN feedback couples to and affects gas, rather than stars, and in many,…

Astrophysics of Galaxies · Physics 2018-04-10 Tilman Hartwig , Marta Volonteri , Gohar Dashyan

Growing supermassive black holes (Active Galactic Nuclei; AGN) release energy with the potential to alter their host galaxies and larger-scale environment; a process named "AGN feedback". Feedback is a required component of galaxy formation…

Astrophysics of Galaxies · Physics 2024-04-15 Chris M. Harrison , Cristina Ramos Almeida

Submillimetre and millimetre observations are important in probing the properties of the molecular gas and dust around obscured active galactic nuclei (AGNs) and their feedback. With very high-resolution (0."02x0."03 (2x3 pc)) ALMA 345 GHz…

The main challenge for understanding the fuelling of supermassive black holes in active galactic nuclei is not to account for the source of fuel, but rather to explain its delivery from the boundaries of the black hole sphere of influence…

Astrophysics of Galaxies · Physics 2015-09-09 Juan Manuel Carmona-Loaiza , Monica Colpi , Massimo Dotti , Riccardo Valdarnini

Active galactic nuclei (AGN) are massive black holes (BHs) caught in the act of accreting gas at the centre of their host galaxies. Part of the accreting mass is converted to energy and released into the surrounding medium, in a process…

Astrophysics of Galaxies · Physics 2022-04-14 Luca Sala , Elia Cenci , Pedro R. Capelo , Alessandro Lupi , Massimo Dotti

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
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