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Related papers: Galaxies in a Simulated $\Lambda$CDM Universe II: …

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We compare the results of thirteen cosmological gasdynamical codes used to simulate the formation of a galaxy in the LCDM structure formation paradigm. The various runs differ in their hydrodynamical treatment (SPH, moving-mesh and AMR) but…

We present numerical methods for including stellar feedback in galaxy-scale simulations. We include heating by SNe (I & II), gas recycling and shock-heating from O-star & AGB winds, HII photoionization, and radiation pressure from stellar…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray

We use nine different galaxy formation scenarios in ten cosmological simulation boxes from the EAGLE suite of {\Lambda}CDM hydrodynamical simulations to assess the impact of feedback mechanisms in galaxy formation and compare these to…

The scaling of galaxy properties with halo mass suggests that feedback loops regulate star formation, but there is no consensus yet about how those feedback loops work. To help clarify discussions of galaxy-scale feedback, Paper I presented…

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

The thermal and chemical properties of the hot diffuse intragroup medium (IGrM) provide important constraints on the feedback processes associated with massive galaxy formation and evolution. Here we explore these constraints via a detailed…

Astrophysics of Galaxies · Physics 2016-01-20 Lichen Liang , Fabrice Durier , Arif Babul , Romeel Davé , Benjamin D. Oppenheimer , Neal Katz , Mark Fardal , Tom Quinn

We apply Monte Carlo Markov Chain (MCMC) methods to large-scale simulations of galaxy formation in a LambdaCDM cosmology in order to explore how star formation and feedback are constrained by the observed luminosity and stellar mass…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Bruno Henriques , Simon White , Peter Thomas , Raul Angulo , Qi Guo , Gerard Lemson , Volker Springel

We have performed hydrodynamic simulations of galaxy formation in a LCDM universe. We have followed galaxy formation in a dark matter halo, chosen to have a relatively quiet recent merger history, using different models for star formation…

Astrophysics · Physics 2009-11-10 Takashi Okamoto , Vince R. Eke , Carlos S. Frenk , Adrian Jenkins

Most of the visible matter in the Universe is in a gaseous state, subject to hydrodynamic forces and galaxy formation processes that are much more complex to model than gravity. These baryonic effects can potentially bias the analyses of…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-14 Lurdes Ondaro-Mallea , Raul E. Angulo , Giovanni Aricò , Joop Schaye , Ian G. McCarthy , Matthieu Schaller

We numerically simulate some of the most critical physical processes in galaxy formation: The supernova feedback, in conjunction with gasdynamics and gravity, plays a crucial role in determining how galaxies arise within the context of a…

Astrophysics · Physics 2015-06-24 G. Yepes , R. Kates , A. Khokhlov , A. Klypin

We introduce a new technique for following the formation and evolution of galaxies in cosmological N-body simulations. Dissipationless simulations are used to track the formation and merging of dark matter halos as a function of redshift.…

We present a cosmological hydrodynamical simulation of a representative volume of the Universe, as part of the Making Galaxies in a Cosmological Context (MaGICC) project. MaGICC uses a thermal implementation for supernova and early stellar…

Cosmology and Nongalactic Astrophysics · Physics 2013-12-02 Rahul Kannan , Greg S. Stinson , Andrea V. Macciò , Chris Brook , Simone M. Weinmann , James Wadsley , H. M. P. Couchman

We present a novel method for including the effects of early (pre-supernova) feedback in simulations of galaxy evolution. Rather than building a model which attempts to match idealized, small-scale simulations or analytic approximations, we…

Astrophysics of Galaxies · Physics 2022-06-29 Benjamin W. Keller , J. M. Diederik Kruijssen , Mélanie Chevance

We present results from thirteen cosmological simulations that explore the parameter space of the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) simulation project. Four of the simulations follow the evolution of a…

One major problem of current theoretical models of galaxy formation is given by their inability to reproduce the apparently `anti-hierarchical' evolution of galaxy assembly: massive galaxies appear to be in place since $z\sim 3$, while a…

Astrophysics of Galaxies · Physics 2016-06-15 Michaela Hirschmann , Gabriella De Lucia , Fabio Fontanot

Despite recent success in forming realistic present-day galaxies, simulations still form the bulk of their stars earlier than observations indicate. We investigate the process of stellar mass assembly in low-mass field galaxies, a dwarf and…

Cosmology and Nongalactic Astrophysics · Physics 2015-01-13 Sebastian Trujillo-Gomez , Anatoly Klypin , Pedro Colin , Daniel Ceverino , Kenza Arraki , Joel Primack

Using a new numerical model for cosmic chemical evolution, we study the influence of hypernova feedback on the star formation and metal enrichment history of the universe. For assumptions which produce plausible results in idealized…

Astrophysics · Physics 2008-11-26 Chiaki Kobayashi , Volker Springel , Simon D. M. White

A model of supernovae feedback during disc galaxy formation is developed. The model incorporates infall of cooling gas from a halo and outflow of hot gas from a multiphase interstellar medium and a self-regulated model for star formation.…

Astrophysics · Physics 2009-07-09 G. Efstathiou

Baryonic feedback is expected to play a key role in regulating the star formation of low-mass galaxies by producing galaxy-scale winds associated with mass-loading factors $\beta\!\sim\!1\!-\!50$. We have tested this prediction using a…

We present a systematic study of stellar feedback processes in simulations of disk galaxy formation. Using a dark matter halo with properties similar to the ones for the Milky Way's stellar halo, we perform a comparison of different methods…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-24 Franziska Piontek , Matthias Steinmetz

We describe techniques for incorporating feedback from star formation and black hole accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic…

Astrophysics · Physics 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist