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We investigate the structural, kinematical, and chemical properties of globular cluster systems (GCSs) in galaxies of different Hubble types in a self-consistent manner based on high-resolution cosmological N-body simulations combined with…

Astrophysics · Physics 2009-11-13 K. Bekki , H. Yahagi , M. Nagashima , D. A. Forbes

TreeSPH simulations of galaxy formation in a LCDM cosmology, with star formation, energetic stellar feedback and a meta-galactic UV field have been performed, resulting in realistic disk, S0 and E galaxies at z=0. The disk galaxies are…

Astrophysics · Physics 2009-11-07 Jesper Sommer-Larsen , Martin Gotz , Laura Portinari

We use a cosmological chemodynamical simulation to study how the group environment impacts the star formation properties of disk galaxies. The simulated group has a total mass of M~8x10^12 Msun and a total X-ray luminosity of L_X~10^41 erg…

Astrophysics · Physics 2009-11-13 Daisuke Kawata , John S. Mulchaey

We perform cosmological, hydrodynamic simulations of magnetic fields in galaxy clusters. The computational code combines the special-purpose hardware Grape for calculating gravitational interaction, and smooth-particle hydrodynamics for the…

Astrophysics · Physics 2007-05-23 Klaus Dolag , Matthias Bartelmann , Harald Lesch

Simulations of the formation of late-type spiral galaxies in a cold dark matter LCDM universe have traditionally failed to yield realistic candidates. Here we report a new cosmological N-body/SPH simulation of extreme dynamic range in which…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Javiera Guedes , Simone Callegari , Piero Madau , Lucio Mayer

Cosmological hydrodynamical simulations, while the current state-of-the art methodology for generating theoretical predictions for the large scale structures of the Universe, are among the most expensive simulation tools, requiring upwards…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-05 Antoine Bourdin , Ronan Legin , Matthew Ho , Alexandre Adam , Yashar Hezaveh , Laurence Perreault-Levasseur

We perform cosmological, hydrodynamic simulations of magnetic fields in galaxy clusters. The computational code combines the special-purpose hardware Grape for calculating gravitational interaction, and smooth-particle hydrodynamics for the…

Astrophysics · Physics 2007-05-23 Klaus Dolag , Matthias Bartelmann , Harald Lesch

We present an analysis of the spatial clustering of a large sample of high-resolution, interferometically identified, submillimetre galaxies (SMGs). We measure the projected cross-correlation function of ~350 SMGs in the UKIDSS Ultra…

We introduce a new set of eight Milky Way-sized cosmological simulations performed using the AMR code ART + Hydrodynamics in a LCDM cosmology. The set of zoom-in simulations covers present-day virial masses in the 0.83-1.56 x 10^12 msun…

Astrophysics of Galaxies · Physics 2016-10-05 Pedro Colin , Vladimir Avila-Reese , Santi Roca-Fabrega , Octavio Valenzuela

We compare the central mass distribution of galaxies simulated with three different models of the interstellar medium (ISM) with increasing complexity: primordial (H+He) cooling down to 10^4K, additional cooling via metal lines and to lower…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Charlotte Christensen , Fabio Governato , Thomas Quinn , Alyson M. Brooks , David B. Fisher , Sijing Shen , Jacqueline McCleary , James Wadsley

Preliminary results are presented from the CLEF hydrodynamics simulation, a large (N=2(428)^3 particles within a 200 Mpc/h comoving box) simulation of the LCDM cosmology that includes both radiative cooling and a simple model for galactic…

The current status of numerical simulations of galaxy formation is reviewed. After a short description of the main numerical simulation techniques, three sample applications illustrate how numerical simulations have provided deeper insight…

Astrophysics · Physics 2009-10-31 Matthias Steinmetz

We trace the evolution of central galaxies in three ~10^13 M_sun galaxy groups simulated at high resolution in cosmological hydrodynamical simulations. The evolution in the group potential leads, at z=0, to central galaxies that are…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-06 R. Feldmann , C. M. Carollo , L. Mayer , A. Renzini , G. Lake , T. Quinn , G. S. Stinson , G. Yepes

We investigate how radiative feedback from the first stars affects the assembly of the first dwarf galaxies. We perform cosmological zoomed SPH simulations of a dwarf galaxy assembling inside a halo of virial mass 10^9 solar at z = 10. The…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-22 Andreas H. Pawlik , Milos Milosavljevic , Volker Bromm

We present the Rhapsody-G suite of cosmological hydrodynamic AMR zoom simulations of ten massive galaxy clusters at the $M_{\rm vir}\sim10^{15}\,{\rm M}_\odot$ scale. These simulations include cooling and sub-resolution models for star…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-12 Oliver Hahn , Davide Martizzi , Hao-Yi Wu , August E. Evrard , Romain Teyssier , Risa H. Wechsler

The circumgalactic medium (CGM) is closely linked to galaxy formation and evolution, but difficult to characterize observationally and typically poorly resolved in cosmological simulations. We use spherically-symmetric, idealized,…

Astrophysics of Galaxies · Physics 2020-02-12 Cassandra Lochhaas , Greg L. Bryan , Yuan Li , Miao Li , Drummond Fielding

An overview over the current status of modeling galaxies by means of numerical simulations is given. After a short description of how galaxies form in hierarchically clustering scenarios, success and failures of current simulations are…

Astrophysics · Physics 2007-05-23 Matthias Steinmetz

Cosmological simulations are a powerful tool to advance our understanding of galaxy formation and many simulations model key properties of real galaxies. A question that naturally arises for such simulations in light of high-quality…

Astrophysics of Galaxies · Physics 2025-09-10 Lingyi Zhou , Stefan T. Radev , William H. Oliver , Aura Obreja , Zehao Jin , Tobias Buck

We introduce the ARTEMIS simulations, a new set of 42 zoomed-in, high-resolution (baryon particle mass of ~ 2x10^4 Msun/h), hydrodynamical simulations of galaxies residing in haloes of Milky Way mass, simulated with the EAGLE galaxy…

We study the predicted sub-mm emission from massive galaxies in a Lambda-CDM universe, using hydrodynamic cosmological simulations. Assuming that most of the emission from newly formed stars is absorbed and reradiated in the rest-frame…

Astrophysics · Physics 2007-05-23 Mark A. Fardal , Neal Katz , David H. Weinberg , Romeel Davé , Lars Hernquist
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