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相关论文: Radiative Stellar Feedback in Galaxy Formation: Me…

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Feedback from massive stars is believed to play a critical role in driving galactic super-winds that enrich the IGM and shape the galaxy mass function and mass-metallicity relation. In previous papers, we introduced new numerical methods…

宇宙学与河外天体物理 · 物理学 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray

Massive star clusters are observed in a broad range of galaxy luminosity and types, and are assumed to form in dense gas-rich environments. Using a parsec-resolution hydrodynamical simulation of an isolated gas-rich low mass galaxy, we…

星系天体物理 · 物理学 2018-04-04 Nicolas Guillard , Eric Emsellem , Florent Renaud

Stellar feedback influences the star formation rate (SFR) and the interstellar medium of galaxies in ways that are difficult to quantify numerically, because feedback is an essential ingredient of realistic simulations. To overcome this, we…

The fragmentation of star-forming interstellar clouds, and the resulting stellar initial mass function (IMF), is strongly affected by the temperature structure of the collapsing gas. Since radiation feedback from embedded stars can modify…

星系天体物理 · 物理学 2015-05-14 Mark R. Krumholz , Andrew J. Cunningham , Richard I. Klein , Christopher F. McKee

We carry out hydrodynamical simulations of galaxy formation that simultaneously follow radiative transfer of hydrogen-ionizing photons, based on the optically-thin variable Eddington tensor approximation as implemented in the {\small…

宇宙学与河外天体物理 · 物理学 2011-07-20 Margarita Petkova , Volker Springel

To study the star formation and feedback mechanism, we simulate the evolution of an isolated dwarf irregular galaxy (dIrr) in a fixed dark matter halo, similar in size to WLM, using a new stellar feedback scheme. We use the new version of…

宇宙学与河外天体物理 · 物理学 2015-06-16 Daisuke Kawata , Brad K. Gibson , David J. Barnes , Robert J. J. Grand , Awat Rahimi

We present self-consistent radiation hydrodynamic simulations of hydrogen reionization performed with Arepo-RT complemented by a state-of-the-art galaxy formation model. We examine how photoheating feedback, due to reionization, shapes the…

星系天体物理 · 物理学 2019-06-25 Xiaohan Wu , Rahul Kannan , Federico Marinacci , Mark Vogelsberger , Lars Hernquist

Radiation feedback from young star clusters embedded in giant molecular clouds (GMCs) is believed to be important to the control of star formation. For the most massive and dense clouds, including those in which super star clusters (SSCs)…

星系天体物理 · 物理学 2015-09-09 M. Aaron Skinner , Eve C. Ostriker

We present a high-resolution cosmological zoom-in simulation of a group of field dwarf galaxies which includes on-the-fly radiative transfer (RT) and is evolved to $z=0$. Emission from stars is included according to age-dependent spectra,…

We use high-resolution cosmological simulations to compare the effect of bursty star formation histories on dwarf galaxy structure for two different subgrid supernovae (SNe) feedback models in dwarf galaxies with stellar masses from $5000…

We present a suite of 3D multi-physics MHD simulations following star formation in isolated turbulent molecular gas disks ranging from 5 to 500 parsecs in radius. These simulations are designed to survey the range of surface densities…

We investigate the spatially-resolved star formation relation using a galactic disk formed in a comprehensive high-resolution (3.8 pc) simulation. Our new implementation of stellar feedback includes ionizing radiation as well as supernova…

星系天体物理 · 物理学 2018-03-12 Ji-hoon Kim , Mark R. Krumholz , John H. Wise , Matthew J. Turk , Nathan J. Goldbaum , Tom Abel

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…

宇宙学与河外天体物理 · 物理学 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray

The stellar initial mass function (IMF) in the early universe is essential to understand the formation of ancient galaxies. To this end, we conduct a series of long-term radiation hydrodynamic simulations following star cluster formation,…

星系天体物理 · 物理学 2023-12-22 Sunmyon Chon , Takashi Hosokawa , Kazuyuki Omukai , Raffaella Schneider

Radiation feedback from stellar clusters is expected to play a key role in setting the rate and efficiency of star formation in giant molecular clouds (GMCs). To investigate how radiation forces influence realistic turbulent systems, we…

星系天体物理 · 物理学 2016-10-05 Sudhir Raskutti , Eve C. Ostriker , M. Aaron Skinner

We investigate the effect of radiative feedback on the star formation process using radiation hydrodynamical simulations. We repeat the previous hydrodynamical star cluster formation simulations of Bate et al., and Bate & Bonnell, but we…

天体物理学 · 物理学 2009-11-13 Matthew R. Bate

We present a semi-analytical model of high redshift galaxy formation. In our model the star formation inside a galaxy is regulated by the feedback from supernova (SNe) driven outflows. We derive a closed analytical form for star formation…

宇宙学与河外天体物理 · 物理学 2015-06-18 Saumyadip Samui

Energy and momentum feedback from stars is a key element of models for galaxy formation and interstellar medium dynamics, but resolving the relevant length scales to directly include this feedback remain out of reach of current-generation…

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…

宇宙学与河外天体物理 · 物理学 2015-08-11 Andreas H. Pawlik , Joop Schaye , Claudio Dalla Vecchia

We simulate the evolution of a 10^9 Msun dark matter halo in a cosmological setting with an adaptive-mesh refinement code as an analogue to local low luminosity dwarf irregular and dwarf spheroidal galaxies. The primary goal of our study is…