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Related papers: Decoding AGN Feedback with X-arithmetic: From Morp…

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There is growing observational evidence for dwarf galaxies hosting active galactic nuclei (AGN), including hints of AGN-driven outflows in dwarfs. However, in the common theoretical model of galaxy formation, efficient supernova (SN)…

Astrophysics of Galaxies · Physics 2022-09-02 Sophie Koudmani , Debora Sijacki , Matthew C. Smith

In this paper, we assess the impact of numerical resolution and of the implementation of energy input from AGN feedback models on the inner structure of cluster sub-haloes in hydrodynamic simulations. We compare several zoom-in…

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

Understanding the astrophysics of feedback in active galactic nuclei (AGN) is key to understanding the growth and co-evolution of supermassive black holes and galaxies. AGN-driven winds/outflows are potentially the most effective way of…

X-ray observations of active galactic nuclei (AGN) show variability on timescales ranging from a few hours up to a few days. Some of this variability may be associated with occultation events by clouds in the broad line region. In this…

High Energy Astrophysical Phenomena · Physics 2018-08-08 E. S. Kammoun , F. Marin , M. Dovciak , E. Nardini , G. Risaliti , M. Sanfrutos

In these proceedings I briefly: (1) review the impact (or "feedback") that active galactic nuclei (AGN) are predicted to have on their host galaxies and larger scale environment, (2) review the observational evidence for or against these…

Astrophysics of Galaxies · Physics 2015-06-18 C. M. Harrison

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…

To investigate the role of active galactic nucleus (AGN) X-ray irradiation on the interstellar medium (ISM), we systematically analyzed Chandra and ALMA CO($J$=2-1) data for 26 ultra-hard X-ray ($>$ 10 keV) selected AGNs at redshifts below…

Astrophysics of Galaxies · Physics 2021-12-22 Taiki Kawamuro , Claudio Ricci , Takuma Izumi , Masatoshi Imanishi , Shunsuke Baba , Dieu D. Nguyen , Kyoko Onishi

The excitation sources in galaxies are frequently mixed due to AGN and stellar feedback, including star formation, active galactic nuclei (AGNs), and shock excitation. Disentangling the star formation, AGN, and shocks in galaxy…

Astrophysics of Galaxies · Physics 2025-06-12 Peixin Zhu , Lisa J. Kewley , Ralph S. Sutherland , Kathryn Grasha

We investigated the influence of Active Galactic Nuclei (AGN) feedback on star formation in red spiral galaxies by analyzing a sample of 324 red and 273 blue face-on spirals selected from 115 low-redshift galaxy clusters. This…

Active Galactic Nuclei (AGN) in cosmological simulations generate explosive feedback that regulates star formation in massive galaxies, modifying the gas phase structure out to large distances. Here, we explore the direct effects that AGN…

Astrophysics of Galaxies · Physics 2023-11-06 Aura Obreja , Fabrizio Arrigoni Battaia , Andrea V. Macciò , Tobias Buck

We present the first implementation of Active Galactic Nuclei (AGN) feedback in the form of momentum driven jets in an Adaptive Mesh Refinement (AMR) cosmological resimulation of a galaxy cluster. The jets are powered by gas accretion onto…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier

We investigate a series of steady-state models of galaxy clusters, in which the hot intracluster gas is efficiently heated by active galactic nucleus (AGN) feedback and thermal conduction, and in which the mass accretion rates are highly…

Astrophysics · Physics 2009-11-13 Fulai Guo , S. Peng Oh , M. Ruszkowski

A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later…

We compare the results of thirteen cosmological gasdynamical codes used to simulate the formation of a galaxy in the LCDM structure formation paradigm. The various runs differ in their hydrodynamical treatment (SPH, moving-mesh and AMR) but…

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

As an evolutionary phase of galaxies, active galactic nuclei (AGN) over a large range of redshift have been utilized for understanding cosmic evolution. In particular, the population and evolution of AGNs have been investigated through the…

Astrophysics of Galaxies · Physics 2019-01-02 Jaejin Shin , Richard. M. Plotkin , Jong-Hak Woo , Elena Gallo , John S. Mulchaey

We investigate a series of steady-state models of galaxy clusters, in which the hot intracluster gas is efficiently heated by active galactic nucleus (AGN) feedback and thermal conduction, and in which the mass accretion rates are highly…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Fulai Guo , S. Peng Oh , M. Ruszkowski

X-ray observations of galaxy clusters are impacted by the presence of active galactic nuclei (AGNs) in a manner that is challenging to quantify, leading to biases in the detection and measurement of cluster properties for both astrophysics…

Dwarf galaxies have historically posed challenges to the cold dark matter (CDM) model and, while many of the so-called 'dwarf galaxy problems' have been mitigated by incorporating baryonic processes, the observed diversity of dwarf galaxy…