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We present a new model for the X-ray properties of the intracluster medium that explicitly includes heating of the gas by the energy released during the evolution of cluster galaxies. We calculate the evolution of clusters by combining the…

Astrophysics · Physics 2009-10-31 R. G. Bower , A. J. Benson , C. G. Lacey , C. M. Baugh , S. Cole , C. S. Frenk

This paper presents a new framework for understanding the relationship between a galaxy and its circumgalactic medium (CGM). It focuses on how imbalances between heating and cooling cause either expansion or contraction of the CGM. It does…

Astrophysics of Galaxies · Physics 2024-06-13 G. M. Voit , V. Pandya , D. B. Fielding , G. L. Bryan , C. Carr , M. Donahue , B. D. Oppenheimer , R. S. Somerville

We use simulations with realistic models for stellar feedback to study galaxy mergers. These high resolution (1 pc) simulations follow formation and destruction of individual GMCs and star clusters. The final starburst is dominated by in…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-02 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist , Desika Narayanan , Christopher C. Hayward , Norman Murray

We predict the observable properties of the galaxy population in popular hierarchical models of galaxy formation. We employ a detailed semianalytic procedure which incorporates the formation and merging of dark matter halos, the shock…

Astrophysics · Physics 2015-06-24 Jeremy S. Heyl , Shaun Cole , Carlos S. Frenk , Julio F. Navarro

We use observations and evolutionary models of local objects to interpret a recent determination of the star-formation history of the universe. By fitting the global star-formation rate, the model predicts the ratio of spheroid to disk mass…

Astrophysics · Physics 2009-09-25 F. D. A. Hartwick

Galaxy disk formation must incorporate the multiphase nature of the interstellar medium. The resulting two-phase structure is generated and maintained by gravitational instability and supernova energy input, which yield a source of…

Astrophysics · Physics 2016-08-30 Joseph Silk

Galactic outflows play a major role in the evolution of galaxies and the intergalactic medium (IGM). The energy deposited into the interstellar medium by supernovae and active galactic nuclei can accelerate the gas past the escape velocity,…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-06 Hugo Martel

We use high resolution simulations to study the formation and distribution of galaxies within a cluster which forms hierarchically. We follow both dark matter and baryonic gas which is subject to thermal pressure, shocks and radiative…

Astrophysics · Physics 2009-09-25 C. S. Frenk , A. E. Evrard , S. D. M. White , FJ Summers

The interstellar medium (ISM) is a very complex medium which contains the matter needed to form stars and planets. The ISM is in permanent interaction with radiation, turbulence, magnetic and gravitational fields, and accelerated particles.…

Astrophysics of Galaxies · Physics 2018-03-07 S Paron

The bulk of cosmic matter resides in a dilute reservoir that fills the space between galaxies, the intergalactic medium (IGM). The history of this reservoir is intimately tied to the cosmic histories of structure formation, star formation,…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-05 Matthew McQuinn

We show that the winds identified with high-redshift low-mass galaxies may strongly affect the formation of stars in more massive galaxies that form later. With 3D realizations of a simple linear growth model we track gas shocking, metal…

Astrophysics · Physics 2009-10-31 Evan Scannapieco , Tom Broadhurst

Research on Galactic Center star formation is making great advances, in particular due to new data from interferometers spatially resolving molecular clouds in this environment. These new results are discussed in the context of established…

Astrophysics of Galaxies · Physics 2017-02-22 Jens Kauffmann

Star-formation in the outer Galaxy is thought to be different from the inner Galaxy, as it is subject to different environmental parameters such as metallicity, interstellar radiation field, or mass surface density that all change with…

Astrophysics of Galaxies · Physics 2021-01-27 Carsten König , James S. Urquhart , Friedrich Wyrowski , Dario Colombo , Karl M. Menten

We present here the first of a series of papers aimed at better understanding the evolution and properties of giant molecular clouds (GMCs) in a galactic context. We perform high resolution, three-dimensional {\sc arepo} simulations of an…

Galaxies cover a wide range of masses and star formation histories. In this review, I summarize some of the evolutionary key features of common galaxy types. At the high-mass end, very rapid, efficient early star formation is observed,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Eva K. Grebel

The 5 independent correlations between the properties of galaxies observed outside big clusters must set such strong constraints on any theory of galaxy formation that it is hard to imagine any but the right one passing muster; certainly…

Astrophysics of Galaxies · Physics 2017-03-09 M J Disney

Molecular clouds at the Galactic center (GC) have environments considerably different from their disk counterparts. The GC may therefore provide important clues about how the environment affects star formation. Interestingly, while the…

High Energy Astrophysical Phenomena · Physics 2015-05-13 Marco Fatuzzo , Fulvio Melia

We analyse the results of four simulations of isolated galaxies: two with a rigid spiral potential of fixed pattern speed, but with different degrees of star-formation induced feedback, one with an axisymmetric galactic potential and one…

Astrophysics of Galaxies · Physics 2015-06-05 C. L. Dobbs , J. E. Pringle , A. Burkert

A brief overview of recent advances in the study of star formation in the Galactic Center (GC) environment is presented. Particular attention is paid to new insights concerning the suppression of star formation in GC molecular clouds.…

Astrophysics of Galaxies · Physics 2017-12-06 Jens Kauffmann

Galaxy clusters form from the infall of dark and baryonic matter at the intersection of cosmic filaments. Most of the baryons are in the form of a hot, magnetized, intracluster plasma detected through its X-ray thermal bremsstrahlung…

Astrophysics of Galaxies · Physics 2019-01-29 Lawrence Rudnick