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Active galactic nuclei (AGN) probably control the growth of their host galaxies via feedback in the form of wide-angle wind-driven outflows. These establish the observed correlations between supermassive black hole (SMBH) masses and host…

星系天体物理 · 物理学 2019-08-08 Kastytis Zubovas , Andrew R. King

This paper presents a study of the impact of supermassive black hole (SMBH) feedback on dark matter (DM) halos in numerical NIHAO simulations of galaxies. In particular, the amount of DM displaced via active galactic nuclei (AGN) feedback…

星系天体物理 · 物理学 2024-03-07 Nikhil Arora , Stephane Courteau , Andrea V. Maccio , Changhyun Cho , Raj Patel , Connor Stone

Modelling AGN feedback in numerical simulations is both technically and theoretically challenging, with numerous approaches having been published in the literature. We present a study of five distinct approaches to modelling AGN feedback…

宇宙学与河外天体物理 · 物理学 2015-06-15 James Wurster , Robert J. Thacker

The importance of the radiative feedback from SMBHs at the centers of elliptical galaxies is not in doubt, given the well established relations among electromagnetic output, black hole mass and galaxy optical luminosity. In addition,…

星系天体物理 · 物理学 2009-06-25 L. Ciotti , J. P. Ostriker , D. Proga

We describe techniques for incorporating feedback from star formation and black hole accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic…

天体物理学 · 物理学 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

We review recent progress in studying accretion flows on to supermassive black holes (SMBH). Much of this removes earlier assumptions of symmetry and regularity, such as aligned and prograde disc rotation. This allows a much richer variety…

高能天体物理现象 · 物理学 2015-06-16 Andrew King , Chris Nixon

Aims. Recent observational studies suggest that feedback from active galactic nuclei (AGNs) may play an important role in the formation and evolution of low-mass dwarf galaxies, an issue that has received little attention from a theoretical…

星系天体物理 · 物理学 2025-02-27 Elena Arjona-Galvez , Arianna Di Cintio , Robert J. J. Grand

In this study of the `Resolving supermAssive Black hole Binaries In galacTic hydrodynamical Simulations' (RABBITS) series, we focus on the hardening and coalescing process of supermassive black hole (SMBH) binaries in galaxy mergers. For…

Supermassive black holes (SMBHs) can grow through both accretion and mergers. It is still unclear how SMBHs evolve under these two channels from high redshifts to the SMBH population we observe in the local universe. Observations can…

星系天体物理 · 物理学 2024-09-26 Fan Zou , W. N. Brandt , Elena Gallo , Bin Luo , Qingling Ni , Yongquan Xue , Zhibo Yu

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

Understanding how supermassive black holes (SMBHs) pair and merge helps to inform predictions of off-center, dual, and binary AGN, and provides key insights into how SMBHs grow and co-evolve with their galaxy hosts. As the loudest known…

星系天体物理 · 物理学 2020-01-07 Fazeel Mahmood Khan , Muhammad Awais Mirza , Kelly Holley-Bockelmann

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:…

We present a series of simulations of the self--regulated growth of supermassive black holes (SMBHs) in galaxies via three different fueling mechanisms: major mergers, minor mergers, and disk instabilities. The SMBHs in all three scenarios…

天体物理学 · 物理学 2009-11-13 Joshua D. Younger , Philip F. Hopkins , T. J. Cox , Lars Hernquist

We investigate how pulsar timing array (PTA) measurements of the nanoHertz gravitational-wave background (GWB) can constrain models for the growth history of supermassive black holes (SMBHs) and how active galactic nucleus (AGN) and stellar…

The inefficiency of star formation in massive elliptical galaxies is widely believed to be caused by the interactions of an active galactic nucleus (AGN) with the surrounding gas. Achieving a sufficiently rapid reddening of moderately…

We follow trajectories of recoiling supermassive black holes (SMBHs) in analytical and numerical models of galaxy merger remnants with masses of $10^{11} \rm{M_{sun}}$ and $10^{12} \rm{M_{sun}}$. We construct various merger remnant galaxies…

星系天体物理 · 物理学 2019-08-08 Majda Smole , Miroslav Micic , Ana Mitrašinović

AGN feedback stands for the dramatic impact that a SMBH can make on its environment. It has become an essential element of models that describe the formation and evolution of baryons in massive virialized halos. The baryons' radiative…

高能天体物理现象 · 物理学 2023-04-05 J. Hlavacek-Larrondo , Y. Li , E. Churazov

We introduce massive black holes (BHs) in the Feedback In Realistic Environments project and perform high-resolution cosmological hydrodynamic simulations of quasar-mass halos ($M_{\rm halo}(z=2) \approx 10^{12.5}\,\rm{M}_{\odot}$) down to…

We investigate the local supermassive black hole (SMBH) density function and relative mass accretion rates of all active galactic nuclei (AGNs) identified in a volume-limited sample of infrared (IR) bright galaxies (L_IR > 3 x 10^9 L_sun)…

星系天体物理 · 物理学 2015-05-18 Andy D. Goulding , David M. Alexander , Bret D. Lehmer , James R. Mullaney

We derive the mass function of supermassive black holes (SMBHs) over the redshift range 0<z<2, using the latest deep luminosity and mass functions of field galaxies. Applying this mass function, combined with the bolometric luminosity…

宇宙学与河外天体物理 · 物理学 2015-06-12 Yan-Rong Li , Jian-Min Wang , Luis C. Ho