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Related papers: Radiation-Driven Outflows in Active Galactic Nucle…

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Outflows from active galactic nuclei (AGN) are one of the fundamental mechanisms by which the central supermassive black hole interacts with its host galaxy. Detected in $\ge 50\%$ of nearby AGN, these outflows have been found to carry…

Significant reservoirs of cool gas are observed in the circumgalactic medium (CGM) surrounding galaxies. The CGM is also found to contain substantial amounts of metals and dust, which require some transport mechanism. We consider AGN…

Astrophysics of Galaxies · Physics 2016-02-24 W. Ishibashi , A. C. Fabian

Galactic outflows can be powered either by nuclear starbursts (SB) or active galactic nuclei (AGN). It has been argued that extreme starbursts can power extreme outflows, without the need to invoke AGN feedback. However, contributions from…

Astrophysics of Galaxies · Physics 2022-10-05 W. Ishibashi , A. C. Fabian

Active galactic nuclei (AGN) feedback operated by the expansion of radio jets can play a crucial role in driving gaseous outflows on galaxy scales. Galaxies hosting young radio AGN, whose jets are in the first phases of expansion through…

Astrophysics of Galaxies · Physics 2021-01-04 F. Santoro , C. Tadhunter , D. Baron , R. Morganti , J. Holt

There is an ongoing debate on whether feedback from active galactic nuclei (AGNs) can effectively regulate the star formation activities in their host galaxies. To investigate the feedback effect of AGN-driven outflows, we perform…

The energy released by Active Galactic Nuclei (AGN) in the form of radiation, winds, or radio plasma jets, is known to impact on the surrounding interstellar medium. The result of these processes, known as AGN (negative) feedback, is…

Astrophysics of Galaxies · Physics 2017-12-15 Raffaella Morganti

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

Feedback from accreting supermassive black holes, active galactic nuclei (AGN), is now a cornerstone of galaxy formation models. In this work, we present radiation-hydrodynamic simulations of radiative AGN feedback using the novel Arepo-RT.…

Astrophysics of Galaxies · Physics 2018-12-06 David J. Barnes , Rahul Kannan , Mark Vogelsberger , Federico Marinacci

We show the effects of AGN-driven outflows on the ejection of heavy elements using our cosmological simulations, where super-massive black holes originate from the first stars. In the most massive galaxy, we have identified two strong…

Astrophysics of Galaxies · Physics 2015-08-06 Philip Taylor , Chiaki Kobayashi

Galaxy-wide outflows driven by active galactic nuclei (AGN) are an important ingredient in galaxy evolution. Analytical calculations suggest that such outflows have significant inertia and can persist long after the AGN itself fades away.…

Astrophysics of Galaxies · Physics 2023-06-14 Kastytis Zubovas , Gediminas Maskeliūnas

Large-scale, broad outflows are common in active galaxies. In systems where star formation coexists with an AGN, it is unclear yet the role that both play on driving the outflows. In this work we present three-dimensional radiative-cooling…

High Energy Astrophysical Phenomena · Physics 2018-09-21 E. de Gouveia Dal Pino , W. Clavijo-Bohórquez , C. Melioli

Energetic ionized gas outflows driven by active galactic nuclei (AGN) have been studied as a key phenomenon related to AGN feedback. To probe the kinematics of the gas in the narrow line region, [O III] ${\lambda}$5007 has been utilized in…

Astrophysics of Galaxies · Physics 2017-08-22 Daeun Kang , Jong-Hak Woo , Hyun-Jin Bae

The properties of large-scale galactic outflows, such as their kinetic energy and momentum rates, correlate with the luminosity of the active galactic nucleus (AGN). This is well explained by the wind-driven outflow model, where a fraction…

Astrophysics of Galaxies · Physics 2020-09-30 Kastytis Zubovas , Emanuele Nardini

Flows driven by photons have been studied for almost a century, and a quantitative description of the radiative forces on atoms and ions is important for understanding a wide variety of systems with outflows and accretion disks, such as…

Astrophysics of Galaxies · Physics 2024-04-19 Aylecia S. Lattimer , Steven R. Cranmer

We perform time-dependent, 2DHD numerical simulations to study the dynamics of a slowly rotating accretion flow from sub-pc to pc scales under the irradiation from the central AGN. Compared to previous work, we improve the calculation of…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Chao Liu , Feng Yuan , Jeremiah P. Ostriker , Zhaoming Gan , Xiaohong Yang

We compute the non-thermal emissions produced by relativistic particles accelerated by the AGN-driven shocks in NGC 1068, and we compare the model predictions with the observed gamma-ray and radio spectra . The former is contributed by pion…

High Energy Astrophysical Phenomena · Physics 2016-12-07 A. Lamastra , F. Fiore , D. Guetta , L. A. Antonelli , S. Colafrancesco , N. Menci , S. Puccetti , A. Stamerra , L. Zappacosta

The study of the conditions and the kinematics of the gas in the central region of AGN provides important information on the relevance of feedback effects connected to the nuclear activity. Quantifying these effects is key for constraining…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Raffaella Morganti , Joanna Holt , Clive Tadhunter , Tom Oosterloo

Large-scale outflows driven by active galactic nuclei (AGN) can have a profound influence on their host galaxies. The outflow properties themselves depend sensitively on the history of AGN energy injection during the lifetime of the…

Astrophysics of Galaxies · Physics 2022-07-20 Kastytis Zubovas , Jonas Bialopetravičius , Monika Kazlauskaitė

Galactic-wide outflows driven by active galactic nuclei (AGNs) is a routinely invoked feedback mechanism in galaxy evolution models. Hitherto, the interplay among the interstellar gas on galactic scales, the propagation of AGN outflows and…

Astrophysics of Galaxies · Physics 2024-11-04 Zhicheng He , Zhifu Chen , Guilin Liu , Tinggui Wang , Luis C. Ho , Junxian Wang , Weihao Bian , Zheng Cai , Guobin Mou , Qiusheng Gu , Zhiwen Wang

Observations and simulations show that outflows in active galactic nuclei (AGN) contain gas in different phases. To understand their true impact on galaxy evolution, we advocate consistent and unbiased investigation of these multiphase…

Astrophysics of Galaxies · Physics 2018-03-01 Claudia Cicone , Marcella Brusa , Cristina Ramos Almeida , Giovanni Cresci , Bernd Husemann , Vincenzo Mainieri