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相关论文: MUFASA: Galaxy Formation Simulations With Meshless…

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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…

星系天体物理 · 物理学 2015-04-20 Eduard I. Vorobyov , Simone Recchi , Gerhard Hensler

We investigate the evolution of the galaxy Star Formation Rate Function (SFRF) and Cosmic Star Formation Rate Density (CSFRD) of $z\sim 1-4 $ galaxies, using cosmological Smoothed Particle Hydrodynamic (SPH) simulations and a compilation of…

星系天体物理 · 物理学 2016-12-07 Antonios Katsianis , Edoardo Tescari , Guillermo Blanc , Mark Sargent

We present a series of high-resolution cosmological simulations of galaxy formation to z=0, spanning halo masses ~10^8-10^13 M_sun, and stellar masses ~10^4-10^11. Our simulations include fully explicit treatment of both the multi-phase ISM…

宇宙学与河外天体物理 · 物理学 2014-11-13 Philip F. Hopkins , Dusan Keres , Jose Onorbe , Claude-Andre Faucher-Giguere , Eliot Quataert , Norm Murray , James S. Bullock

We investigate the evolution of the galaxy stellar mass function (GSMF) and star formation rates (SFRs) across cosmic time in the COLIBRE simulations of galaxy formation. COLIBRE includes a multiphase interstellar medium, radiative cooling…

We present the McMaster Unbiased Galaxy Simulations (MUGS), the first 9 galaxies of an unbiased selection ranging in total mass from 5$\times10^{11}$ M$_\odot$ to 2$\times10^{12}$ M$_\odot$ simulated using n-body smoothed particle…

宇宙学与河外天体物理 · 物理学 2015-03-14 G. Stinson , J. Bailin , H. Couchman , J. Wadsley , S. Shen , C. Brook , T. Quinn

We investigate galaxy conformity using the Mufasa cosmological hydrodynamical simulation. We show a bimodal distribution in galaxy colour with radius, albeit with too many low-mass quenched satellite galaxies compared to observations.…

星系天体物理 · 物理学 2018-01-31 Mika Rafieferantsoa , Romeel Davé

The $\Gamma$ growth model is an effective parameterization employed across various scientific disciplines and scales to depict growth. It has been demonstrated that the cosmic star formation rate density (CSFRD) can also be described…

Galaxies can form in a sufficiently deep gravitational potential so that efficient gas cooling occurs. We estimate that such potential is provided by a halo of mass $M \gtsim M_{c} \approx 7.0 \times 10^{12} ~ (\Delta_{c}(z)…

天体物理学 · 物理学 2009-09-07 Hung-Yu Jian , Chia-Hung Chien , Tzihong Chiueh

We present a new particle code for modelling the evolution of galaxies. The code is based on a multi-phase description for the interstellar medium (ISM). We included star formation (SF), stellar feedback by massive stars and planetary…

天体物理学 · 物理学 2009-11-11 Stefan Harfst , Christian Theis , Gerhard Hensler

We present a detailed analysis of the specific star formation rate -- stellar mass ($\mathrm{sSFR}-M_*$) of $z\le 0.13$ disk central galaxies using a morphologically selected mass-complete sample ($M_* \ge 10^{9.5} M_{\odot}$). Considering…

Star formation, together with the associated chemical and energy feedback, is one of the most important processes in galaxy evolution. The star formation activity in galaxies defines and affects many of their fundamental properties, such as…

星系天体物理 · 物理学 2025-08-14 Ezequiel Lozano , Cecilia Scannapieco , Sebastian E. Nuza

We study the nature of rapidly star-forming galaxies at z=2 in cosmological hydrodynamic simulations, and compare their properties to observations of sub-millimetre galaxies (SMGs). We identify simulated SMGs as the most rapidly…

宇宙学与河外天体物理 · 物理学 2015-05-14 Romeel Davé , Kristian Finlator , Benjamin D. Oppenheimer , Mark Fardal , Neal Katz , Dušan Kereš , David H. Weinberg

We trace the specific star formation rate (sSFR) of massive star-forming galaxies ($\gtrsim\!10^{10}\,\mathcal{M}_\odot$) from $z\sim2$ to 7. Our method is substantially different from previous analyses, as it does not rely on direct…

星系天体物理 · 物理学 2018-01-31 Iary Davidzon , Olivier Ilbert , Andreas L. Faisst , Martin Sparre , Peter L. Capak

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…

天体物理学 · 物理学 2015-06-24 G. Yepes , R. Kates , A. Khokhlov , A. Klypin

We study the connection between the observed star formation rate-stellar mass (SFR-$M_*$) relation and the evolution of the stellar mass function (SMF) by means of a subhalo abundance matching technique coupled to merger trees extracted…

星系天体物理 · 物理学 2017-11-15 E. Contini , X. Kang , A. D. Romeo , Q. Xia , S. K. Yi

We study the role of feedback from supernovae and black holes in the evolution of the star formation rate function (SFRF) of z~4-7 galaxies. We use a new set of cosmological hydrodynamic simulations, ANGUS (AustraliaN GADGET-3 early…

宇宙学与河外天体物理 · 物理学 2015-06-18 Edoardo Tescari , Antonios Katsianis , Stuart Wyithe , Klaus Dolag , Luca Tornatore , Paramita Barai , Matteo Viel , Stefano Borgani

We studied the star formation rate (SFR) in cosmological hydrodynamical simulations of galaxy (proto-)clusters in the redshift range $0<z<4$, comparing them to recent observational studies; we also investigated the effect of varying the…

We present the first set of high-resolution, hydrodynamical cosmological simulations of galaxy formation in a Fuzzy Dark Matter (FDM) framework. These simulations were performed with a new version of the GASOLINE2 code, known as…

星系天体物理 · 物理学 2024-11-18 Matteo Nori , Shubhan Bhatia , Andrea V. Macciò

The relation between the Star Formation Rate (SFR) and stellar mass (${\rm M}_{\star}$) of galaxies represents a fundamental constraint on galaxy formation and has been studied extensively both in observations and cosmological simulations.…

星系天体物理 · 物理学 2016-07-06 A. Katsianis , E. Tescari , J. S. B. Wyithe

Recent studies have found a dramatic difference between the observed number density evolution of low mass galaxies and that predicted by semi-analytic models. While models accurately reproduce the z=0 number density, they require that the…