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Related papers: Constraining AGN feedback model with SZ profile

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We study the effects of radio jets on galaxies in their vicinity (satellites) and the role of satellites in triggering radio-loud active galactic nuclei (AGNs). The study compares the aggregate properties of satellites of a sample of 7,220…

Astrophysics of Galaxies · Physics 2015-06-18 Cameron Pace , Samir Salim

The clustering of matter, as measured by the matter power spectrum, informs us about dark matter and cosmology, as well as baryonic effects on the distribution of matter in the universe. Using cosmological hydrodynamical simulations from…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-14 M. L. van Loon , Marcel P. van Daalen

We investigate the potential of exploiting the Sunyaev-Zeldovich effect (SZE) to study the properties of hot gas in galaxy groups. It is shown that, with upcoming SZE surveys, one can stack SZE maps around galaxy groups of similar halo…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Ran Li , H. J. Mo , Zuhui Fan , Frank C. van den Bosch , Xiaohu Yang

This is the second paper of a series exploring the multi-component (stars, warm and cold gas and radio jets) properties of a sample of eleven nearby low excitation radio galaxies (LERGs), with the aim of better understanding the AGN…

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 use measurements of weak gravitational shear around a sample of massive galaxy clusters at z = 0.3 to constrain their average radial density profile. Our results are consistent with the density profiles of CDM halos in numerical…

Astrophysics · Physics 2007-05-23 H. Dahle

We make an in-depth analysis of different AGN jet models' signatures, inducing quiescence in galaxies with a halo mass of $10^{12} M_\odot$. Three jet models, including cosmic ray-dominant, hot thermal, and precessing kinetic jets, are…

Galaxy groups are not scaled down versions of massive galaxy clusters - the hot gas in groups (known as the intragroup medium, IGrM for short) is, on average, less dense than the intracluster medium, implying that one or more…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-16 Ian G. McCarthy , Joop Schaye , Richard G. Bower , Trevor J. Ponman , Craig M. Booth , Claudio Dalla Vecchia , Volker Springel

We use high-resolution cosmological zoom-in simulations from the FIRE project to make predictions for the covering fractions of neutral hydrogen around galaxies at z=2-4. These simulations resolve the interstellar medium of galaxies and…

Astrophysics of Galaxies · Physics 2015-06-22 C. -A. Faucher-Giguere , P. F. Hopkins , D. Keres , A. L. Muratov , E. Quataert , N. Murray

We introduce the Virgo Consortium's EAGLE project, a suite of hydrodynamical simulations that follow the formation of galaxies and black holes in representative volumes. We discuss the limitations of such simulations in light of their…

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…

The presence of dense, neutral hydrogen clouds in the hot, diffuse intra-group and intra-cluster medium is an important clue to the physical processes controlling the survival of cold gas and sheds light on cosmological baryon flows in…

Astrophysics of Galaxies · Physics 2024-04-29 Avinash Chaturvedi , Stephanie Tonnesen , Greg L. Bryan , Gergö Popping , Michael Hilker , Paolo Serra , Shy Genel

We study the feedback from an AGN on stellar formation within its host galaxy, mainly using one high resolution numerical simulation of the jet propagation within the interstellar medium of an early-type galaxy. In particular, we show that…

Astrophysics of Galaxies · Physics 2015-05-13 C. Tortora , V. Antonuccio-Delogu , S. Kaviraj , J. Silk , A. D. Romeo , U. Becciani

Simulations of feedback by jets from active galactic nuclei (AGN) in the past mostly focused on the interaction at large scales as the circumgalactic medium or intra-cluster medium for clusters of galaxies. Only in recent years, simulations…

Astrophysics of Galaxies · Physics 2014-07-10 V. Gaibler

Following on our previous study of an analytic parametric model to describe the baryonic and dark matter distributions in clusters of galaxies with spherical symmetry, we perform an SZ analysis of a set of simulated clusters and present…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 M. Olamaie , M. P. Hobson , K. J. B. Grainge

We present simulations of galaxy formation, based on the GADGET-3 code, in which a sub-resolution model for star formation and stellar feedback is interfaced with a new model for AGN feedback. Our sub-resolution model describes a multiphase…

Supermassive black holes (BH) are powerful sources of energy that are already in place at very early epochs of the Universe (by z=6). Using hydrodynamical simulations of the formation of a massive M_vir=5 10^11 M_sun halo by z=6 (the most…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Yohan Dubois , Christophe Pichon , Julien Devriendt , Joseph Silk , Martin Haehnelt , Taysun Kimm , Adrianne Slyz

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 the connection between supermassive black holes (SMBHs) and their host dark matter halos in the local universe using the clustering statistics and luminosity function of AGN from the Swift/BAT AGN Spectroscopic survey (BASS…

Dwarf galaxy anomalies, such as their abundance and cusp-core problems, remain a prime challenge in our understanding of galaxy formation. The inclusion of baryonic physics could potentially solve these issues, but the efficiency of stellar…

Astrophysics of Galaxies · Physics 2017-12-07 Gohar Dashyan , Joseph Silk , Gary A. Mamon , Yohan Dubois , Tilman Hartwig