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We review the progress in modelling the galaxy population in hydrodynamical simulations of the Lambda-CDM cosmogony. State-of-the-art simulations now broadly reproduce the observed spatial clustering of galaxies, the distributions of key…

Astrophysics of Galaxies · Physics 2023-10-02 Robert A. Crain , Freeke van de Voort

We investigate the role of supermassive black holes in the global context of galaxy evolution by measuring the host galaxy stellar mass function (HGMF) and the specific accretion rate i.e., lambda_SAR, distribution function (SARDF) up to…

Recent years have witnessed a substantial increase in our ability to trace the spatially resolved properties of rapidly star-forming galaxies in the high-redshift universe and numerous studies have suggested the importance of turbulent…

Early-type galaxies (ETGs) show a bimodal distribution in key structural properties like stellar specific angular momentum, kinematic morphology, and nuclear surface brightness profiles. Slow rotator ETGs, mostly found in the densest…

Astrophysics of Galaxies · Physics 2025-10-17 Michele Cappellari

Active galactic nucleus (AGN) feedback is expected to impact the amount of cold gas in galaxies by driving strong galactic winds, by preventing external gas inflows, or by changing the thermodynamical state of the gas. We use molecular gas…

Astrophysics of Galaxies · Physics 2020-09-30 Hassen M. Yesuf , Luis C. Ho

Using high-resolution magnetohydrodynamic simulations of idealized, non-cosmological galaxies, we investigate how cooling, star formation, and stellar feedback affect galactic magnetic fields. We find that the amplification histories,…

We present measurements of galactic outflow rates from the EAGLE suite of cosmological simulations. We find that gas is removed from the interstellar medium (ISM) of central galaxies with a dimensionless mass loading factor that scales…

Astrophysics of Galaxies · Physics 2020-04-15 Peter D. Mitchell , Joop Schaye , Richard G. Bower , Robert A. Crain

We perform high-resolution hydrodynamical simulations using the framework of {\it MACER} to investigate supermassive black hole (SMBH) feeding and feedback in a massive compact galaxy, which has a small effective radius but a large stellar…

Astrophysics of Galaxies · Physics 2023-05-31 Yihuan Di , Yuan Li , Feng Yuan , Fangzheng Shi , Mirielle Caradonna

We address the cosmological evolution of violent gravitational instability in high-redshift, massive, star-forming galactic discs. To this aim, we integrate in time the equations of mass and energy conservation under self-regulated…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Marcello Cacciato , Avishai Dekel , Shy Genel

Observations show that spiral galaxies in galaxy clusters tend to have on average less neutral hydrogen (HI) than galaxies of the same type and size in the field. There is accumulating evidence that such HI-deficient galaxies are also…

Astrophysics of Galaxies · Physics 2015-11-18 Helga Denes , Virginia A. Kilborn , Baerbel S. Koribalski , O. Ivy Wong

Optically-similar early-type galaxies are observed to have a large and poorly understood range in the amount of hot, X-ray-emitting gas they contain.To investigate the origin of this diversity, we studied the hot gas properties of all 42…

Astrophysics of Galaxies · Physics 2015-04-07 Yuanyuan Su , Jimmy A. Irwin , Raymond E. White , Michael C. Cooper

We investigate the effects of gradual heating on the evolution of turbulent molecular clouds of mass $2\times 10^6$ M$_\odot$ and virial parameters ranging between $0.7-1.2$. This gradual heating represents the energy output from processes…

Astrophysics of Galaxies · Physics 2018-07-26 L. Garratt-Smithson , G. A. Wynn , C. Power , C. J. Nixon

We use FIRE-2 cosmological zoom-in hydrodynamic simulations to investigate the co-evolution between Milky Way-size galaxies and their host dark matter halos. We find that the formation of these galaxies follows a two-phase pattern, with an…

Astrophysics of Galaxies · Physics 2026-04-29 Qinglin Ma , Yangyao Chen , Houjun Mo

The formation, evolution and death of massive stars release large quantities of energy and momentum into the gas surrounding the sites of star formation. This process, generically termed 'feedback', inhibits further star formation either by…

Astrophysics of Galaxies · Physics 2015-07-10 Dawn K. Erb

We study the impact of relatively weak AGN feedback on the interstellar medium of intermediate and massive elliptical galaxies. We find that the AGN activity, while globally heating the ISM, naturally stimulates some degree of hot gas…

Astrophysics of Galaxies · Physics 2015-06-23 Milena Valentini , Fabrizio Brighenti

Under the assumption that jets in active galactic nuclei are powered by accretion and the spin of the central supermassive black hole, we are able to reproduce the radio luminosity functions of high- and low-excitation galaxies.…

High Energy Astrophysical Phenomena · Physics 2012-02-01 Alejo Martinez-Sansigre , Steve Rawlings

Massive black holes (MBHs) in contrast to stellar mass black holes are expected to substantially change their properties over their lifetime. MBH masses increase by several order of magnitude over the Hubble time, as illustrated by Soltan's…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Marta Volonteri , Marek Sikora , Jean-Pierre Lasota , Andrea Merloni

We present a subgrid-scale model for the Multi-phase Interstellar medium, Star formation, and Turbulence (MIST) and explore its behaviour in high-resolution large-eddy simulations of isolated disc galaxies. MIST follows the evolution of a…

Astrophysics of Galaxies · Physics 2015-06-19 Harald Braun , Wolfram Schmidt , Jens C. Niemeyer , Ann S. Almgren

We introduce a simple analytic model of galaxy formation that links the growth of dark matter haloes in a cosmological background to the build-up of stellar mass within them. The model aims to identify the physical processes that drive the…

Astrophysics of Galaxies · Physics 2020-01-08 Jaime Salcido , Richard G. Bower , Tom Theuns

This work presents a study of galactic outflows driven by stellar feedback. We extract main sequence disc galaxies with stellar mass $10^9\le$ M$_{\star}/$M$_{\odot} \le 5.7\times10^{10}$ at redshift $z=0$ from the highest resolution…

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