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We present a hybrid active galactic nucleus (AGN) feedback model that features three accretion disc states (the thick, thin, and slim discs at low, moderate, and super-Eddington accretion rates, respectively), and two feedback modes:…

In a previous work, we have proposed a sub-grid model of active galactic nucleus (AGN) feedback by taking into account the state-of-the-art AGN physics, and used that model to study the effect of AGN feedback on the evolution of an isolated…

Astrophysics of Galaxies · Physics 2020-12-08 Zhiyuan Yao , Feng Yuan , Jeremiah P. Ostriker

We present simulations of galaxy formation, based on the GADGET-3 code, in which a sub-resolution model for star formation and stellar feedback is interfaced with a new model for AGN feedback. Our sub-resolution model describes a multiphase…

We present a novel implementation for active galactic nucleus (AGN) feedback through ultra-fast winds in the code gizmo. Our feedback recipe accounts for the angular dependence of radiative feedback upon black hole spin. We…

Astrophysics of Galaxies · Physics 2024-10-16 Francesco Bollati , Alessandro Lupi , Massimo Dotti , Francesco Haardt

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

(Abridged) We investigate two modes of coupling the feedback energy from a central AGN to the neighboring gas in galaxy simulations: kinetic - velocity boost, and thermal - heating. We formulate kinetic feedback models for energy-driven…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Paramita Barai , Matteo Viel , Giuseppe Murante , Massimo Gaspari , Stefano Borgani

Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medium (ISM). In this work, we study the impact of these winds…

To tackle the still unsolved and fundamental problem of the role of Active Galactic Nuclei (AGN) feedback in shaping galaxies, in this work we implement a new physical treatment of AGN-driven winds into our semi-analytic model of galaxy…

Astrophysics of Galaxies · Physics 2023-06-28 N. Menci , F. Fiore , F. Shankar , L. Zanisi , C. Feruglio

We study the interaction of feedback from active galactic nuclei (AGN) and a multi-phase interstellar medium (ISM), in simulations including explicit stellar feedback, multi-phase cooling, accretion-disk winds, and Compton heating. We…

Astrophysics of Galaxies · Physics 2016-11-09 Philip F. Hopkins , Paul Torrey , Claude-Andre Faucher-Giguere , Eliot Quataert , Norman Murray

We investigate the effects of AGN feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional high-resolution hydrodynamical numerical simulations. The inner boundary of the simulation is chosen so…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Feng Yuan , Doosoo Yoon , Ya-Ping Li , Zhao-Ming Gan , Luis C. Ho , Fulai Guo

We study fast nuclear winds driven by Active Galactic Nucleus (AGN) feedback in merging galaxies using high-resolution hydrodynamics simulations. We use Stars and MUltiphase Gas in GaLaxiEs (SMUGGLE) to explicitly model the multiphase…

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

Supermassive black holes (BH) are powerful sources of energy that are already in place at very early epochs of the Universe (by z=6). Using hydrodynamical simulations of the formation of a massive M_vir=5 10^11 M_sun halo by z=6 (the most…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Yohan Dubois , Christophe Pichon , Julien Devriendt , Joseph Silk , Martin Haehnelt , Taysun Kimm , Adrianne Slyz

We develop a new sub-grid model for the growth of supermassive Black Holes (BHs) and their associated Active Galactic Nuclei (AGN) feedback in hydrodynamical cosmological simulations. Assuming that BHs are created in the early stages of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier

Using the SWIFT simulation code we study different forms of active galactic nuclei (AGN) feedback in idealized galaxy groups and clusters. We first present a physically motivated model of black hole (BH) spin evolution and a numerical…

Astrophysics of Galaxies · Physics 2023-11-16 Filip Huško , Cedric G. Lacey , Joop Schaye , Folkert S. J. Nobels , Matthieu Schaller

We employ cosmological hydrodynamical simulations to investigate the effects of AGN feedback on the formation of massive galaxies with present-day stellar masses of $M_{stel} = 8.8 \times 10^{10} - 6.0 \times 10^{11} M_{sun}$. Using…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Ena Choi , Jeremiah P. Ostriker , Thorsten Naab , Ludwig Oser , Benjamin P. Moster

The ultraviolet (UV) bright accretion disc in active galactic nuclei (AGN) should give rise to line driving, producing a powerful wind which may play an important role in AGN feedback as well as in producing structures like the broad line…

High Energy Astrophysical Phenomena · Physics 2021-11-05 Arnau Quera-Bofarull , Chris Done , Cedric G. Lacey , Mariko Nomura , Ken Ohsuga

We implement novel numerical models of AGN feedback in the SPH code GADGET-3, where the energy from a supermassive black hole (BH) is coupled to the surrounding gas in the kinetic form. Gas particles lying inside a bi-conical volume around…

In this study of the `Resolving supermAssive Black hole Binaries In galacTic hydrodynamical Simulations' (RABBITS) series, we investigate the orbital evolution of supermassive black holes (SMBHs) during galaxy mergers. We simulate both disc…

Heating from active galactic nuclei (AGN) is thought to stabilize cool-core clusters, limiting star formation and cooling flows. We employ radiative magneto-hydrodynamic (MHD) simulations to model light AGN jet feedback with different…

Astrophysics of Galaxies · Physics 2023-03-28 Kristian Ehlert , Rainer Weinberger , Christoph Pfrommer , Rüdiger Pakmor , Volker Springel
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