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This review examines the relationship between black hole activity and kinematic gas-star misalignment in brightest group galaxies (BGGs) with different merger rates. The formation history of galaxy groups is assessed through "age-dating" as…

Astrophysics of Galaxies · Physics 2024-04-09 Mojtaba Raouf , Mohammad Hossein Purabbas , Fatemeh Fazel Hesar

Recent multi-band variability studies have revealed that active galactic nucleus (AGN) accretion disc sizes are generally larger than the predictions of the classical thin disc by a factor of $2\sim 3$. This hints at some missing key…

Astrophysics of Galaxies · Physics 2018-10-26 Mouyuan Sun , Yongquan Xue , Jonathan R. Trump , Wei-Min Gu

Stars with outflows interacting with ambient gas experience accelerations arising from the gravitational feedback induced by the interaction structure. In this work, three-dimensional (3D) local shearing box simulations are performed to…

Astrophysics of Galaxies · Physics 2025-08-12 Muxin Liu , Lile Wang , Peng Peng

Active galactic nuclei (AGN) feedback models are generally calibrated to reproduce galaxy observables such as the stellar mass function and the bimodality in galaxy colors. We use variations of the AGN feedback implementations in the…

Feedback from the central black hole in active galactic nuclei (AGN) may be responsible for establishing the observed MBH-sigma relation and limiting the bulge stellar mass of the host galaxy. Here we explore the possibility of AGN feedback…

Astrophysics of Galaxies · Physics 2015-06-11 W. Ishibashi , A. C. Fabian

We present a study of the effect of AGN feedback on metal enrichment and thermal properties of the intracluster medium (ICM) in hydrodynamical simulations. The cosmological simulations are performed for a set of clusters using a version of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 D. Fabjan , S. Borgani , L. Tornatore , A. Saro , G. Murante , K. Dolag

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…

Astrophysics of Galaxies · Physics 2015-05-18 Jeremiah P. Ostriker , Ena Choi , Luca Ciotti , Gregory S. Novak , Daniel Proga

Numerical simulations of active galactic nuclei (AGN) feedback in cool-core galaxy clusters have successfully avoided classical cooling flows, but often produce too much cold gas. We perform adaptive mesh simulations that include…

Astrophysics of Galaxies · Physics 2015-09-30 Yuan Li , Greg L. Bryan , Mateusz Ruszkowski , G. Mark Voit , Brian W. O'Shea , Megan Donahue

It is well established that the properties of supermassive black holes and their host galaxies are correlated through scaling relations. While hydrodynamical cosmological simulations have begun to account for the co-evolution of BHs and…

Astrophysics of Galaxies · Physics 2019-10-23 Sebastian Bustamante , Volker Springel

Using high-resolution 3-D and 2-D (axisymmetric) hydrodynamic simulations in spherical geometry, we study the evolution of cool cluster cores heated by feedback-driven bipolar active galactic nuclei (AGN) jets. Condensation of cold gas, and…

Astrophysics of Galaxies · Physics 2015-10-07 Deovrat Prasad , Prateek Sharma , Arif Babul

Feedback from the active galactic nuclei (AGN) is one of the most promising heating mechanisms to circumvent the cooling-flow problem in galaxy clusters. However, the role of thermal conduction remains unclear. Previous studies have shown…

Astrophysics of Galaxies · Physics 2016-02-24 H. -Y. K. Yang , C. S. Reynolds

We find, from high-resolution hydro simulations, that winds from AGN effectively heat the inner parts (~100 pc) of elliptical galaxies, reducing infall to the central SMBH; and radiative (photoionization and X-ray) heating reduces cooling…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 L. Ciotti , J. P. Ostriker , D. Proga

We perform simulations to study the effects of active galactic nuclei (AGNs) radiation and wind feedback on the properties of slowly rotating accretion flow at parsec scale. We find that when only radiative feedback is considered, outflows…

High Energy Astrophysical Phenomena · Physics 2019-09-11 De-Fu Bu , Xiao-Hong Yang

Turbulence in the intracluster, intragroup, and circumgalactic medium plays a crucial role in the self-regulated feeding and feedback loop of central supermassive black holes. We dissect the three-dimensional turbulent `weather' in a…

Astrophysics of Galaxies · Physics 2021-02-17 D. Wittor , M. Gaspari

Supermassive black holes at the centre of galaxies gain mass through accretion disks. Models predict that quasi-spherical winds, expelled by the black hole during active accretion phases, have a key role in shaping galaxy evolution by…

Small-scale winds driven from accretion discs surrounding active galactic nuclei (AGN) are expected to launch kpc-scale outflows into their host galaxies. However, the ways in which the structure of the interstellar medium (ISM) affects the…

Astrophysics of Galaxies · Physics 2024-08-19 Samuel Ruthven Ward , Tiago Costa , Chris M. Harrison , Vincenzo Mainieri

Negative feedback from active galactic nuclei (AGN) is the leading mechanism for the quenching of massive galaxies in the vast majority of modern galaxy evolution models. However, direct observational evidence that AGN feedback causes…

Astrophysics of Galaxies · Physics 2022-06-29 Samuel Ruthven Ward , Chris Harrison , Tiago Costa , Vincenzo Mainieri

Recent systematic searches for massive black holes (BHs) in local dwarf galaxies led to the discovery of a population of faint Active Galactic Nuclei (AGN). We investigate the agreement of the BH and AGN populations in the Illustris, TNG,…

Active galactic nuclei (AGN) are powered by accretion disks onto supermassive black holes in the the centers of galaxies. AGN are believed to play important roles in the evolution of both supermassive black holes and their host galaxies…

High Energy Astrophysical Phenomena · Physics 2025-06-11 K. E. Saavik Ford , Barry McKernan

Binary black hole (BBH) mergers, particularly those with component masses in the pair-instability gap, may be produced by hierarchical mergers in the disks surrounding Active Galactic Nuclei (AGN). While the interaction of an embedded BBH…

High Energy Astrophysical Phenomena · Physics 2022-04-13 Ya-Ping Li , Adam M. Dempsey , Hui Li , Shengtai Li , Jiaru Li