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To investigate the differences in mechanical feedback from radio-loud and radio-quiet Active Galactic Nuclei (AGN) on the host galaxy, we perform 3D AMR hydrodynamic simulations of wide angle, radio-quiet winds with different inclinations…

Astrophysics of Galaxies · Physics 2017-07-26 Zachary Dugan , Volker Gaibler , Joseph Silk

We investigate the effect of active galactic nucleus (AGN) variability on the observed connection between star formation and black hole accretion in extragalactic surveys. Recent studies have reported relatively weak correlations between…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Ryan C. Hickox , James R. Mullaney , David M. Alexander , Chien-Ting J. Chen , Francesca M. Civano , Andy D. Goulding , Kevin N. Hainline

We investigate the relationship between black hole accretion and star formation in a sample of 453 $z\approx0.3$ type 1 active galactic nuclei (AGNs). We use available CO observations to demonstrate that the combination of nebular dust…

Astrophysics of Galaxies · Physics 2021-01-13 Ming-Yang Zhuang , Luis C. Ho , Jinyi Shangguan

Recent models of super-massive black hole (SMBH) and host galaxy joint evolution predict the presence of a key phase where accretion, traced by obscured Active Galactic Nuclei (AGN) emission, is coupled with powerful star formation. Then…

Astrophysics of Galaxies · Physics 2015-06-18 Cristian Vignali

Coupling black hole (BH) feeding and feedback involves interactions across vast spatial and temporal scales that is computationally challenging. Tracking gas inflows and outflows from kilo-parsec scales to the event horizon for non-spinning…

Radiation pressure-driven outflows from luminous accreting supermassive black holes are an important part of active galactic nucleus (AGN) feedback. The effective Eddington limit, based on absorption of radiation by dust, not electron…

Astrophysics of Galaxies · Physics 2022-11-16 N. Arakawa , A. C. Fabian , G. J. Ferland , W. Ishibashi

Feedback from energy liberated by gas accretion onto black holes (BHs) is an attractive mechanism to explain the exponential cut-off at the massive end of the galaxy stellar mass function (SMF). Semi-analytic models of galaxy formation in…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-14 Y. M. Rosas-Guevara , R. G. Bower , J. Schaye , M. Furlong , C. S. Frenk , C. M. Booth , R. Crain , C. Dalla Vecchia , M. Schaller , T. Theuns

In order to constrain the physical processes that regulate and downsize the AGN population, the predictions of the MOdel for the Rise of GAlaxies aNd Active nuclei (MORGANA) are compared to luminosity functions (LFs) of AGNs in the optical,…

Astrophysics · Physics 2009-11-11 Fabio Fontanot , Pierluigi Monaco , Stefano Cristiani , Paolo Tozzi

We identify the intrinsic dependence of star formation quenching on a variety of galactic and environmental parameters, utilizing a machine learning approach with Random Forest classification. We have previously demonstrated the power of…

Astrophysics of Galaxies · Physics 2023-02-22 Asa F. L. Bluck , Joanna M. Piotrowska , Roberto Maiolino

The cosmic history of supermassive black hole (SMBH) growth is important for understanding galaxy evolution, reionization and the physics of accretion. Recent NuSTAR, Swift-BAT and \textit{Chandra} hard X-ray surveys have provided new…

Dense gas in the centre of galaxies feeds massive black holes, but can also become a source of obscuration and limit our ability to find faint Active Galactic Nuclei (AGN). We use a high resolution cosmological radiative hydrodynamics…

Astrophysics of Galaxies · Physics 2019-05-22 Maxime Trebitsch , Marta Volonteri , Yohan Dubois

Radiative cooling may plausibly cause hot gas in the centre of a massive galaxy, or galaxy cluster, to become gravitationally unstable. The subsequent collapse of this gas on a dynamical timescale can provide an abundant source of fuel for…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Edward C. D. Pope , J. Trevor Mendel , Stanislav S. Shabala

Outflows produced by a supermassive black hole (SMBH) can have important feedback effects in its host galaxy. An unresolved question is the nature and properties of winds from SMBHs accreting at low rates in low-luminosity active galactic…

High Energy Astrophysical Phenomena · Physics 2020-01-30 Ivan Almeida , Rodrigo Nemmen

Black hole feedback has been widely implemented as the key recipe to quench star formation in massive galaxies in modern semi-analytic models and hydrodynamical simulations. As the theoretical details surrounding the accretion and feedback…

Contrary to the standard lore, there is mounting observational evidence that feedback from active galactic nuclei (AGN) may also play a role at the low-mass end of the galaxy population. We investigate this using the cosmological simulation…

Astrophysics of Galaxies · Physics 2021-03-22 Sophie Koudmani , Nicholas A. Henden , Debora Sijacki

While cosmological simulations of galaxy formation have reached maturity, able to reproduce many fundamental galaxy and halo properties, no consensus has yet been reached on the impact of `baryonic feedback' on the non-linear matter power…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-17 Leah Bigwood , Martin A. Bourne , Vid Irsic , Alexandra Amon , Debora Sijacki

Among the emerging excess of massive, bright galaxies at Cosmic Dawn $z \gtrsim 9$ seen by the James Webb Space Telescope, several exhibit spectral features associated with active galactic nuclei (AGN). These AGN candidates suggest that…

Astrophysics of Galaxies · Physics 2025-10-23 James Sunseri , Zachary L. Andalman , Romain Teyssier

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

We investigate AGN feedback from an intermediate-mass black hole at the center of a dwarf spheroidal galaxy, by performing isolated galaxy simulations using a modified version of the GADGET-3 code. We consider Leo II (PGC 34176) in the…

Astrophysics of Galaxies · Physics 2025-01-08 R. Hazenfratz , P. Barai , G. A. Lanfranchi , A. Caproni

Several arguments suggest that stochastic condensation of cold gas and its accretion onto the central supermassive black hole (SMBH) is essential for active galactic nuclei (AGN) feedback to work in the most massive galaxies that lie at the…

Astrophysics of Galaxies · Physics 2017-07-10 Deovrat Prasad , Prateek Sharma , Arif Babul