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We present simulations of the multi-phase interstellar medium (ISM) at solar neighbourhood conditions including thermal and non-thermal ISM processes, star cluster formation, and feedback from massive stars: stellar winds, hydrogen ionising…

We present a novel framework to self-consistently model the effects of radiation fields, dust physics and molecular chemistry (H$_2$) in the interstellar medium (ISM) of galaxies. The model combines a state-of-the-art radiation…

Supernova (SN) feedback is one of the key processes shaping the interstellar medium (ISM) of galaxies. SNe contribute to (and in some cases may dominate) driving turbulence in the ISM and accelerating galactic winds. Modern cosmological…

星系天体物理 · 物理学 2016-01-11 Davide Martizzi , Claude-Andre Faucher-Giguere , Eliot Quataert

Supernovae (SN), the most energetic stellar feedback mechanism, are crucial for regulating the interstellar medium (ISM) and launching galactic winds. We explore how supernova remnants (SNRs) create a multiphase medium by performing 3D…

星系天体物理 · 物理学 2015-11-18 Miao Li , Jeremiah P. Ostriker , Renyue Cen , Greg L. Bryan , Thorsten Naab

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

The relative impact of radiation pressure and photoionization feedback from young stars on surrounding gas is studied with hydrodynamic radiative transfer (RT) simulations. The calculations focus on the single-scattering (direct radiation…

宇宙学与河外天体物理 · 物理学 2015-06-17 Laura V. Sales , Federico Marinacci , Volker Springel , Margarita Petkova

To advance our understanding of massive star formation, it is essential to perform a comprehensive suite of simulations that explore the relevant parameter space and include enough physics to enable a comparison with observational data. We…

星系天体物理 · 物理学 2025-11-19 Birka Zimmermann , Stefanie Walch , Seamus D. Clarke , Richard Wünsch , Andre Klepitko

Supernova (SN) explosions play an important role in the development of galactic structures. The energy and momentum imparted on the interstellar medium (ISM) in so-called "supernova feedback" drives turbulence, heats the gas, enriches it…

天体物理仪器与方法 · 物理学 2016-04-25 André-Patrick Bubel

Effective stellar feedback is used in models of galaxy formation to drive realistic galaxy evolution. Models typically include energy injection from supernovae as the dominant form of stellar feedback, often in some form of sub-grid recipe.…

星系天体物理 · 物理学 2018-10-17 Andrew Emerick , Greg L. Bryan , Mordecai-Mark Mac Low

We present an analytic model for how momentum deposition from stellar feedback simultaneously regulates star formation and drives outflows in a turbulent interstellar medium (ISM). Because the ISM is turbulent, a given patch of ISM exhibits…

星系天体物理 · 物理学 2017-02-08 Christopher C. Hayward , Philip F. Hopkins

Recent zoom-in cosmological simulations have shown that stellar feedback can flatten the inner density profile of the dark matter halo in low-mass galaxies. A correlation between the stellar/gas velocity dispersion ($\sigma_{star}$,…

We investigate how a satellite's star formation rate (SFR) and surviving gas respond to ram pressure stripping in various environments. Using a suite of high-resolution "wind-tunnel" simulations with radiative cooling, star formation, and…

星系天体物理 · 物理学 2023-09-14 Jingyao Zhu , Stephanie Tonnesen , Greg L Bryan

We use a series of magnetohydrodynamic simulations including both radiative and protostellar outflow feedback to study the environmental variation of the initial mass function. The simulations represent a carefully-controlled experiment…

星系天体物理 · 物理学 2022-09-28 Tabassum S Tanvir , Mark R Krumholz , Christoph Federrath

Using high-resolution simulations with explicit treatment of stellar feedback physics based on the FIRE (Feedback in Realistic Environments) project, we study how galaxy formation and the interstellar medium (ISM) are affected by magnetic…

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

We present results from multifrequency radiative hydrodynamical chemistry simulations addressing primordial star formation and related stellar feedback from various populations of stars, stellar energy distributions (SEDs) and initial mass…

星系天体物理 · 物理学 2016-06-08 U. Maio , M. Petkova , G. De Lucia , S. Borgani

We present high-resolution hydrodynamical simulations of isolated dwarf galaxies including self-gravity, non-equilibrium cooling and chemistry, interstellar radiation fields (IRSF) and shielding, star formation, and stellar feedback. This…

星系天体物理 · 物理学 2017-08-23 Chia-Yu Hu , Thorsten Naab , Simon C. O. Glover , Stefanie Walch , Paul C. Clark

We present a new simulation suite for the star-forming interstellar medium (ISM) in galactic disks using the TIGRESS-NCR framework. Distinctive aspects of our simulation suite are: (1) sophisticated and comprehensive numerical treatments of…

Radiation feedback is typically implemented using subgrid recipes in hydrodynamical simulations of galaxies. Very little work has so far been performed using radiation-hydrodynamics (RHD), and there is no consensus on the importance of…

星系天体物理 · 物理学 2015-05-28 Joakim Rosdahl , Joop Schaye , Romain Teyssier , Oscar Agertz

We present a novel set of stellar feedback models, implemented in the moving-mesh code Arepo, designed for galaxy formation simulations with near-parsec (or better) resolution. These include explicit sampling of stars from the IMF, allowing…

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