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Related papers: The EAGLE project: Simulating the evolution and as…

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Cosmological simulations still lack numerical resolution or physical processes to simulate dwarf galaxies in sufficient details. Accurate numerical simulations of individual dwarf galaxies are thus still in demand. We aim at (i) studying in…

Astrophysics of Galaxies · Physics 2015-04-20 Eduard I. Vorobyov , Simone Recchi , Gerhard Hensler

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 study the feedback from an AGN on stellar formation within its host galaxy, mainly using one high resolution numerical simulation of the jet propagation within the interstellar medium of an early-type galaxy. In particular, we show that…

Astrophysics of Galaxies · Physics 2015-05-13 C. Tortora , V. Antonuccio-Delogu , S. Kaviraj , J. Silk , A. D. Romeo , U. Becciani

One of the prominent science goal of the ELTs will be to study the physics and mass assembly of galaxies at very high redshifts. Here, we present the galaxy evolution science case for EAGLE, which is a NIR multi-integral field spectrograph…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 M. Puech , M. Lehnert , Y. Yang , J. -G. Cuby , S. Morris , C. Evans , B. Neichel , T. Fusco , G. Rousset , H. Flores

We use the "Evolution and Assembly of GaLaxies and their Environments" ( EAGLE ) suite of hydrodynamical cosmological simulations to measure offsets between the centres of stellar and dark matter components of galaxies. We find that the…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-21 Matthieu Schaller , Andrew Robertson , Richard Massey , Richard G. Bower , Vincent R. Eke

We present cosmological hydrodynamic simulations performed to study evolution of galaxy population. The simulations follow timed release of mass, energy, and metals by stellar evolution and employ phenomenological treatments of supernova…

Astrophysics of Galaxies · Physics 2014-09-15 Takashi Okamoto , Ikkoh Shimizu , Naoki Yoshida

A recent determination of the relationships between the X-ray luminosity of the ISM (Lx) and the stellar and total mass, for a sample of nearby early-type galaxies (ETGs), is used to investigate the origin of the hot gas, via a comparison…

Astrophysics of Galaxies · Physics 2018-04-11 S. Pellegrini , L. Ciotti , A. Negri , J. P. Ostriker

High-resolution cosmological hydrodynamic simulations are currently limited to relatively small volumes due to their computational expense. However, much larger volumes are required to probe rare, overdense environments, and measure…

We simulate stacked observations of nearby hot X-ray coronae associated with galaxies in the EAGLE and Illustris-TNG hydrodynamic simulations. A forward modeling pipeline is developed to predict 4-year eROSITA observations and stacked image…

We use the Cluster-EAGLE simulations to explore the velocity bias introduced when using galaxies, rather than dark matter particles, to estimate the velocity dispersion of a galaxy cluster, a property known to be tightly correlated with…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-27 Thomas Joshua Armitage , David. J. Barnes , Scott. T. Kay , Yannick M. Bahé , Claudio Dalla Vecchia , Robert A. Crain , Tom Theuns

Feedback effects generated by supernovae (SNe) and active galactic nuclei (AGNs) are pivotal in shaping the evolution of galaxies and their present-day structures. However, our understanding of the specific mechanisms operating at galactic…

Astrophysics of Galaxies · Physics 2023-07-20 Kentaro Nagamine

Galaxy groups are not scaled down versions of massive galaxy clusters - the hot gas in groups (known as the intragroup medium, IGrM for short) is, on average, less dense than the intracluster medium, implying that one or more…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-16 Ian G. McCarthy , Joop Schaye , Richard G. Bower , Trevor J. Ponman , Craig M. Booth , Claudio Dalla Vecchia , Volker Springel

The alignment between satellite and central galaxies serves as a proxy for addressing the issue of galaxy formation and evolution and has been investigated abundantly in observations and theoretical works. Most scenarios indicate that the…

Astrophysics of Galaxies · Physics 2020-02-11 Mingge Zhang , Yang Wang

We present a comprehensive study of the star formation histories of massive-quenched galaxies at $z=3$ in 3 semi-analytic models (SHARK, GAEA, GALFORM) and 3 cosmological hydrodynamical simulations (EAGLE, IllustrisTNG, Simba). We study the…

Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medium (ISM). In this work, we study the impact of these winds…

We present the analysis of a suite of simulations of a Virgo mass galaxy cluster. Undertaken within the framework of standard cold dark matter cosmology, these simulations were performed at differing resolutions and with increasingly…

Astrophysics · Physics 2009-10-31 G. F. Lewis , A. Babul , N. Katz , T. Quinn , L. Hernquist , D. H. Weinberg

We estimate the expected event rate of gravitational wave signals from mergers of supermassive black holes that could be resolved by a space-based interferometer, such as the Evolved Laser Interferometer Space Antenna (eLISA), utilising the…

We study the distribution and evolution of highly ionised intergalactic metals in the Evolution and Assembly of Galaxies and their Environment (EAGLE) cosmological, hydrodynamical simulations. EAGLE has been shown to reproduce a wide range…

Astrophysics of Galaxies · Physics 2016-03-16 Alireza Rahmati , Joop Schaye , Robert A. Crain , Benjamin D. Oppenheimer , Matthieu Schaller , Tom Theuns

We carry out a comparison between observations and hydrodynamic simulations of entropy profiles of groups and clusters of galaxies. We use the Tree+SPH GADGET code to simulate four halos of sizes in the M_500 = 1.0 - 16.e13 h^-1 Msun range,…

Astrophysics · Physics 2009-11-07 A. Finoguenov , S. Borgani , L. Tornatore , H. Boehringer

We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic simulations in modeling the high redshift galaxy population. We present new predictions for the abundance of star-forming galaxies…

Astrophysics · Physics 2007-05-23 David H. Weinberg , Romeel Dave' , Jeffrey P. Gardner , Lars Hernquist , Neal Katz