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Related papers: AGN feedback with the Square Kilometer Array (SKA)…

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Mechanical feedback via Active Galactic Nuclei (AGN) jets in the centres of galaxy groups and clusters is a crucial ingredient in current models of galaxy formation and cluster evolution. Jet feedback is believed to regulate gas cooling and…

The utility of large Sunyaev Zel'dovich (SZ) surveys for determining cosmological parameters from cluster abundances is limited by the theoretical uncertainties in the integrated SZ-flux-to-mass relation, Y-M. We explore how non-thermal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 N. Battaglia , J. R. Bond , C. Pfrommer , J. L. Sievers

This is the first paper in a series using our MACER framework to investigate the evolution of a disk galaxy, which emphasizes the role of active galactic nucleus (AGN) feedback and incorporates cosmological inflows. This paper presents the…

Astrophysics of Galaxies · Physics 2026-03-13 Yuxuan Zou , Feng Yuan , Suoqing Ji , Luis C. Ho , Yingjie Peng , Jing Wang , Bocheng Zhu , Tao Wang

The interplay between radiative cooling of the circumgalactic medium (CGM) and feedback heating governs the evolution of the universe's most massive galaxies. This paper presents simulations of feedback processes in massive galaxies showing…

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

The intrinsic correlations of galaxy shapes and orientations across the large-scale structure of the Universe are a known contaminant to weak gravitational lensing. They are known to be dependent on galaxy properties, such as their mass and…

We investigate the impact of AGN feedback, on the entropy and characteristic temperature measurements of galaxy groups detected in the SRG/eROSITA's first All-Sky Survey (eRASS1) to shed light on the characteristics of the feedback…

Cosmological constraints derived from galaxy clusters rely on accurate predictions of cluster observable properties, in which feedback from active galactic nuclei (AGN) is a critical component. In order to model the physical effects due to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 H. -Y. K. Yang , P. M. Sutter , P. M. Ricker

The current generation of flagship X-ray missions, Chandra and XMM-Newton, has changed our understanding of the so-called "cool core" galaxy clusters and groups. Instead of the initial idea that the thermal gas is cooling and flowing toward…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Myriam Gitti , Fabrizio Brighenti , Brian R. McNamara

The investigation of the feedback cycle in galaxy clusters has historically been performed for systems where feedback is ongoing ("mature-feedback" clusters), that is where the central radio galaxy has inflated radio lobes, pushing aside…

Observations support the view that feedback, in the form of radio outbursts from active nuclei in central galaxies, prevents catastrophic cooling of gas and rapid star formation in many groups and clusters of galaxies. Variations in jet…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 P. E. J. Nulsen , B. R. McNamara

We investigate the impact of AGN feedback on the gravitational lensing properties of a sample of galaxy clusters with masses in the range 10^14 - 10^15 Msol, using state-of-the-art simulations. Adopting a ray-tracing algorithm, we compute…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 J. M. G. Mead , L. J. King , D. Sijacki , A. Leonard , E. Puchwein , I. G. McCarthy

In this Chapter we present the motivation for undertaking both a wide and deep survey with the SKA in the context of studying AGN activity across cosmic time. With an rms down to 1 $\mu$Jy/beam at 1 GHz over 1,000 - 5,000 deg$^2$ in 1 year…

We study the effect of Active Nuclei Galaxy (AGN) feedback as one of the major mechanisms modifying the cluster morphology influencing scaling relations, which are the most uncertain factor in constraining cosmology with clusters of…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-27 Gayoung Chon , Ewald Puchwein , Hans Boehringer

Radio emission is insensitive to dust obscuration, and the breadth of the radio luminosity function ensures that sources are detected over a wide range of redshifts at all radio flux densities. As a result, radio continuum observations are…

Astrophysics · Physics 2009-11-10 C A Jackson

Active galactic nuclei (AGN) feedback has a major impact onto the supermassive black-hole (SMBH) growth, the properties of the host galaxies, and their cosmic evolution. We investigate the effects of different kinetic feedback prescriptions…

Astrophysics of Galaxies · Physics 2022-06-01 Fabio Vito , Fabio Di Mascia , Simona Gallerani , Tommaso Zana , Andrea Ferrara , Stefano Carniani , Roberto Gilli

A variety of large-scale diffuse radio structures have been identified in many clusters with the advent of new state-of-the-art facilities in radio astronomy. Among these diffuse radio structures, radio mini-halos are found in the central…

We present numerical simulations of galaxy clusters with stochastic heating from active galactic nuclei (AGN) that are able to reproduce the observed entropy and temperature profiles of non-cool-core (NCC) clusters. Our study uses N-body…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-30 C. J. Short , P. A. Thomas , O. E. Young

The Square Kilometre Array (SKA) will transform our understanding of the role of the cold, atomic gas in galaxy evolution. The interstellar medium (ISM) is the repository of stellar ejecta and the birthsite of new stars and, hence, a key…

The feedback from active galactic nuclei (AGN) plays a crucial role in regulating the thermodynamics and the dynamics of the intracluster medium (ICM). Studying the turbulent patterns of the hot and warm ionized phases may allow us to…

Astrophysics of Galaxies · Physics 2025-05-14 Stefano Sotira , Franco Vazza , Fabrizio Brighenti