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Related papers: MUFASA: Galaxy Formation Simulations With Meshless…

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We present a suite of cosmological radiation-hydrodynamical simulations of the assembly of galaxies driving the reionization of the intergalactic medium (IGM) at z >~ 6. The simulations account for the hydrodynamical feedback from…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-11 Andreas H. Pawlik , Joop Schaye , Claudio Dalla Vecchia

Understanding the variability of galaxy star formation histories (SFHs) across a range of timescales provides insight into the underlying physical processes that regulate star formation within galaxies. We compile the SFHs of galaxies at…

We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially-resolved study of the stellar populations in a set of 366 nearby galaxies from the CALIFA survey. The…

Motivated by the observed connection between molecular hydrogen (H2) and star formation, we present a method for tracking the non-equilibrium abundance and cooling processes of H2 and H2-based star formation in Smoothed Particle…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Charlotte Christensen , Thomas Quinn , Fabio Governato , Adrienne Stilp , Sijing Shen , James Wadsley

We have used the AMR hydrodynamic code, MG, to perform 3D hydrodynamic simulations with self-gravity of stellar feedback in a spherical clumpy molecular cloud formed through the action of thermal instability. We simulate the interaction of…

Astrophysics of Galaxies · Physics 2017-07-26 Christopher J. Wareing , Julian M. Pittard , Samuel A. E. G. Falle

We examine the global HI properties of galaxies in quarter-billion particle cosmological simulations using Gadget-2, focusing on how galactic outflows impact HI content. We consider four outflow models, including a new one (ezw) motivated…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Romeel Davé , Neal Katz , Benjamin D. Oppenheimer , Juna A. Kollmeier , David H. Weinberg

We investigate the star-formation rate (SFR) and stellar mass ($M_*$) relation of a star-forming (SF) galaxy sample in the XMM-LSS field to $z\sim 3.0$ using the near-infrared data from the VISTA Deep Extragalactic Observations (VIDEO)…

We study the effects of galaxy environment on the evolution of the stellar-mass function (SMF) over 0.2 < z < 2.0 using the FourStar Galaxy Evolution (ZFOURGE) survey and NEWFIRM Medium-Band Survey (NMBS) down to the stellar-mass…

We explore the circumgalactic medium (CGM) of two simulated star-forming galaxies with luminosities L ~ 0.1 and 1 L* generated using the smooth particle hydrodynamic code GASOLINE. These simulations are part of the Making Galaxies In a…

We present first results from three-dimensional hydrodynamic simulations of the high redshift formation of dwarf galaxies. The simulations use an Eulerian adaptive mesh refinement technique to follow the non-equilibrium chemistry of…

Astrophysics · Physics 2009-11-07 Konstantinos Tassis , Tom Abel , Greg L. Bryan , Michael L. Norman

We introduce a suite of cosmological volume simulations to study the evolution of galaxies as part of the Feedback in Realistic Environments project. FIREbox, the principal simulation of the present suite, provides a representative sample…

The cosmic star formation history in Cold Dark Matter dominated cosmological scenarios is studied by means of hydrodynamical numerical simulations. In particular, we explore a low density model with a Lambda-term and two high density models…

Astrophysics · Physics 2009-11-07 Y. Ascasibar , G. Yepes , S. Gottloeber , V. Mueller

Feedback from massive stars is believed to play a critical role in shaping the galaxy mass function, the structure of the interstellar medium (ISM), and the low efficiency of star formation, but the exact form of the feedback is uncertain.…

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

We simulate the formation and evolution of galaxies with a self-consistent 3D hydrodynamical model including star formation, supernova feedback, and chemical enrichment. Hypernova feedback plays an essential role not only in solving the…

Astrophysics of Galaxies · Physics 2009-11-06 Chiaki Kobayashi

We investigate the redshift evolution of the molecular gas mass fraction (f_mol=M_mol/(M_star+M_mol), where M_mol is molecular gas mass and M_star is stellar mass) of galaxies in the redshift range of 0<z<2 as a function of the stellar mass…

Astrophysics of Galaxies · Physics 2015-10-28 Kana Morokuma-Matsui , Junichi Baba

The faintest Local Group galaxies found lurking in and around the Milky Way halo provide a unique test bed for theories of structure formation and evolution on small scales. Deep Subaru and Hubble Space Telescope photometry demonstrates…

Astrophysics of Galaxies · Physics 2019-10-09 Donatella Romano , Francesco Calura , Annibale D'Ercole , C. Gareth Few

Modelling the molecular gas that is routinely detected through CO observations of high-redshift galaxies constitutes a major challenge for ab initio simulations of galaxy formation. We carry out a suite of cosmological hydrodynamic…

Astrophysics of Galaxies · Physics 2020-09-04 Alexander Schäbe , Emilio Romano-Díaz , Cristiano Porciani , Aaron D. Ludlow , Matteo Tomassetti

We present a new comprehensive model of the physics of galaxy formation designed for large-scale hydrodynamical simulations of structure formation using the moving mesh code AREPO. Our model includes primordial and metal line cooling with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Mark Vogelsberger , Shy Genel , Debora Sijacki , Paul Torrey , Volker Springel , Lars Hernquist

The observed evolution of the gas fraction and its associated depletion time in main sequence (MS) galaxies provides insights on how star formation proceeds over cosmic time. We report ALMA detections of the rest-frame $\sim$300$\mu$m…

Astrophysics of Galaxies · Physics 2016-12-21 E. Schinnerer , B. Groves , M. T. Sargent , A. Karim , P. A. Oesch , B. Magnelli , O. LeFevre , L. Tasca , F. Civano , P. Cassata , V. Smolcic

We present a hydro-dynamical simulation at sub-parsec and few solar mass resolution of a merger between two gas-rich dwarf galaxies. Our simulation includes a detailed model for the multi-phase interstellar medium (ISM) and is able to…

Astrophysics of Galaxies · Physics 2019-07-17 Natalia Lahén , Thorsten Naab , Peter H. Johansson , Bruce Elmegreen , Chia-Yu Hu , Stefanie Walch