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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…

宇宙学与河外天体物理 · 物理学 2015-05-30 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier

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…

宇宙学与河外天体物理 · 物理学 2015-06-05 Yohan Dubois , Christophe Pichon , Julien Devriendt , Joseph Silk , Martin Haehnelt , Taysun Kimm , Adrianne Slyz

We use cosmological hydrodynamical simulations to investigate the role of feedback from accreting black holes on the evolution of sizes, compactness, stellar core density and specific star-formation of massive galaxies with stellar masses…

星系天体物理 · 物理学 2018-10-24 Ena Choi , Rachel S. Somerville , Jeremiah P. Ostriker , Thorsten Naab , Michaela Hirschmann

We have recently improved our model of active galactic nucleus (AGN) by attaching the supermassive black hole (SMBH) to a massive nuclear star cluster (NSC). Here we study the effects of this new model in massive, gas-rich galaxies with…

星系天体物理 · 物理学 2018-01-25 Pawel Biernacki , Romain Teyssier

Stellar-mass BHs (sBHs) are predicted to be embedded in active galactic nuclei (AGN) disks due to gravitational drag and in-situ star formation. However, we find that due to a high gas density in an AGN disk environment, compact objects may…

高能天体物理现象 · 物理学 2022-03-14 Hiromichi Tagawa , Shigeo S. Kimura , Zoltán Haiman , Rosalba Perna , Hidekazu Tanaka , Imre Bartos

The vast amount of energy released by active galactic nuclei (AGN) is increasingly recognized as a key driver of evolution not only in massive galaxies and clusters, but also in low-mass dwarf galaxies. Despite this, their role in the early…

星系天体物理 · 物理学 2025-07-04 Mahsa Sanati , Julien Devriendt , SergioMartin-Alvarez , Adrianne Slyz , Jonathan C. Tan

We introduce a new model for the formation and evolution of supermassive black holes (SMBHs) in the RAMSES code using sink particles, improving over previous work the treatment of gas accretion and dynamical evolution. This new model is…

星系天体物理 · 物理学 2017-04-11 Pawel Biernacki , Romain Teyssier , Andreas Bleuler

Active galactic nucleus (AGN) feedback from accreting supermassive black holes (SMBHs) is an essential ingredient of galaxy formation simulations. The orbital evolution of SMBHs is affected by dynamical friction that cannot be predicted…

Active galactic nucleus (AGN) feedback is expected to impact the amount of cold gas in galaxies by driving strong galactic winds, by preventing external gas inflows, or by changing the thermodynamical state of the gas. We use molecular gas…

星系天体物理 · 物理学 2020-09-30 Hassen M. Yesuf , Luis C. Ho

The growth of supermassive black holes (SMBH) through accretion is accompanied by the release of enormous amounts of energy which can either be radiated away, as happens in quasars, advected into the black hole, or disposed of in kinetic…

天体物理学 · 物理学 2008-08-04 Andrea Merloni

The deposition of mechanical feedback from a supermassive black hole (SMBH) in an active galactic nucleus (AGN) into the surrounding galaxy occurs via broad-line winds which must carry mass and radial momentum as well as energy. The effect…

星系天体物理 · 物理学 2015-05-18 Jeremiah P. Ostriker , Ena Choi , Luca Ciotti , Gregory S. Novak , Daniel Proga

(Abridged) We present a method that tracks the growth of supermassive black holes (BHs) and the feedback from AGN in cosmological simulations. Our model is a substantially modified version of the one by Springel et al. (2005). Because…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. M. Booth , Joop Schaye

The observed massive end of the galaxy stellar mass function is steeper than its predicted dark matter halo counterpart in the standard $\Lambda $CDM paradigm. In this paper, we investigate the impact of active galactic nuclei (AGN)…

Active galactic nuclei (AGN) are accreting supermassive black holes co-evolving with their host galaxies through a complex interplay of feeding and feedback. In this chapter, we first discuss AGN fuelling in galaxies, both in interacting…

星系天体物理 · 物理学 2023-08-02 Pedro R. Capelo , Chiara Feruglio , Ryan C. Hickox , Francesco Tombesi

We discuss a numerical model for black hole growth and its associated feedback processes that for the first time allows cosmological simulations of structure formation to self-consistently follow the build up of the cosmic population of…

天体物理学 · 物理学 2009-09-28 Debora Sijacki , Volker Springel , Tiziana Di Matteo , Lars Hernquist

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…

星系天体物理 · 物理学 2016-11-09 Philip F. Hopkins , Paul Torrey , Claude-Andre Faucher-Giguere , Eliot Quataert , Norman Murray

It is still a matter of intense debate how supermassive black holes (SMBH) grow, and the role played by feedback from active galactic nuclei (AGN) in the co-evolution of SMBHs and galaxies. To test the coevolution proposed by theoretical…

星系天体物理 · 物理学 2022-11-30 George Mountrichas , Francesco Shankar

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…

宇宙学与河外天体物理 · 物理学 2015-06-04 A. C. Fabian

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…

星系天体物理 · 物理学 2024-10-16 Francesco Bollati , Alessandro Lupi , Massimo Dotti , Francesco Haardt

Among the emerging excess of massive, bright galaxies at Cosmic Dawn $z \gtrsim 9$ seen by the James Webb Space Telescope, several exhibit spectral features associated with active galactic nuclei (AGN). These AGN candidates suggest that…

星系天体物理 · 物理学 2025-10-23 James Sunseri , Zachary L. Andalman , Romain Teyssier
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