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Massive, young stars are the main source of energy that maintains multiphase structure and turbulence in the interstellar medium (ISM), and without this "feedback" the star formation rate (SFR) would be much higher than is observed. Rapid…

星系天体物理 · 物理学 2023-03-28 Chang-Goo Kim , Jeong-Gyu Kim , Munan Gong , Eve C. Ostriker

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…

Modern high-resolution simulations of the interstellar medium (ISM) have shown that key factors in governing star formation are the competing influences of radiative dissipation, pressure support driven by stellar feedback, and the…

Substructure in the interstellar medium (ISM) is crucial for establishing the correlation between star formation and feedback and has the capacity to significantly perturb stellar orbits, thus playing a central role in galaxy dynamics and…

星系天体物理 · 物理学 2026-02-06 Shaunak Modak , Eve C. Ostriker , Chris Hamilton , Scott Tremaine

Galactic outflows have density, temperature, and velocity variations at least as large as that of the multiphase, turbulent interstellar medium (ISM) from which they originate. We have conducted a suite of parsec-resolution numerical…

We introduce the star formation and Supernova (SN) feedback model of the SATIN (Simulating AGNs Through ISM with Non-Equilibrium Effects) project to simulate the evolution of the star forming multi-phase interstellar medium (ISM) of entire…

星系天体物理 · 物理学 2023-06-28 Rebekka Bieri , Thorsten Naab , Sam Geen , Jonathan P. Coles , Rüdiger Pakmor , Stefanie Walch

Traditional star formation subgrid models implemented in cosmological galaxy formation simulations, such as that of Springel & Hernquist (2003, hereafter SH03), employ adjustable parameters to satisfy constraints measured in the local…

We present a multi-phase representation of the ISM in NB-TSPH simulations of galaxy formation and evolution with particular attention to the case of early-type galaxies. Cold gas clouds are described by the so-called sticky particles…

天体物理学 · 物理学 2009-11-13 Emiliano Merlin , Cesare Chiosi

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

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…

The energy and momentum feedback from young stars has a profound impact on the interstellar medium (ISM), including heating and driving turbulence in the neutral gas that fuels future star formation. Recent theory has argued that this leads…

星系天体物理 · 物理学 2015-06-16 Chang-Goo Kim , Eve C. Ostriker , Woong-Tae Kim

I model the multi-phase interstellar medium (ISM) randomly heated and shocked by supernovae, with gravity, differential rotation and other parameters we understand to be typical of the solar neighbourhood. The simulations are 3D extending…

星系天体物理 · 物理学 2017-12-15 Frederick Gent

We present an efficient heating/cooling method coupled with chemistry and ultraviolet (UV) radiative transfer, which can be applied to numerical simulations of the interstellar medium (ISM). We follow the time-dependent evolution of…

星系天体物理 · 物理学 2022-12-28 Jeong-Gyu Kim , Munan Gong , Chang-Goo Kim , Eve C. Ostriker

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

Abridged. Understanding the detailed structure of the interstellar gas is essential for our knowledge of the star formation process. The small-scale structure of the interstellar medium (ISM) is a direct consequence of the galactic scales…

星系天体物理 · 物理学 2018-03-21 Patrick Hennebelle

We present a method for modelling star-forming clouds that combines two different models of the thermal evolution of the interstellar medium (ISM). In the combined model, where the densities are low enough that at least some part of the…

太阳与恒星天体物理 · 物理学 2015-03-19 Matthew R. Bate , Eric R. Keto

We use a high-resolution grid-based hydrodynamics method to simulate the multi-phase interstellar medium in a Milky Way-size quiescent disk galaxy. The models are global and three-dimensional, and include a treatment of star formation and…

天体物理学 · 物理学 2009-11-13 Elizabeth J. Tasker , Greg L. Bryan

Coupling stellar feedback to the evolution of individual stars, as opposed to averaging over the initial mass function (IMF), substantially improves the fidelity of galaxy formation simulations by capturing stochastic population effects.…

星系天体物理 · 物理学 2026-04-02 Matthew C. Smith

We aim at addressing the questions related to galaxy mass assembly through major and minor wet merging processes in the redshift range 1<z<2. A consequent fraction of Milky Way like galaxies are thought to have undergone an unstable clumpy…

宇宙学与河外天体物理 · 物理学 2015-06-16 V. Perret , F. Renaud , B. Epinat , P. Amram , F. Bournaud , T. Contini , R. Teyssier , J. -C. Lambert

Galaxy evolution depends strongly on the physics of the interstellar medium (ISM). Motivated by the need to incorporate the properties of the ISM in cosmological simulations we construct a simple method to include the contribution of…

宇宙学与河外天体物理 · 物理学 2015-06-17 Yuval Birnboim , Shmuel Balberg , Romain Teyssier
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