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Related papers: The properties of the ISM in disc galaxies with st…

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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 include feedback in global hydrodynamic simulations in order to study the star formation properties, and gas structure and dynamics, in models of galactic disks. We extend previous models by implementing feedback in gravitationally bound…

Astrophysics · Physics 2009-11-13 Rahul Shetty , Eve C. Ostriker

By resimulating a region of a global disc simulation at higher resolution, we resolve and study the properties of molecular clouds with a range of masses from a few 100's M$_{\odot}$ to $10^6$ M$_{\odot}$. The purpose of our paper is…

Astrophysics of Galaxies · Physics 2015-06-23 Clare L. Dobbs

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…

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

Using hydrodynamical simulations of entire galactic discs similar to the Milky Way, reaching 4.6pc resolution, we study the origins of observed physical properties of giant molecular clouds (GMCs). We find that efficient stellar feedback is…

Astrophysics of Galaxies · Physics 2018-07-04 Kearn Grisdale , Oscar Agertz , Florent Renaud , Alessandro B. Romeo

Although supernova explosions and stellar winds happens at scales bellow 100 pc, they affect the interstellar medium(ISM) and galaxy formation. We use cosmological N-body+Hydrodynamics simulations of galaxy formation, as well as simulations…

Astrophysics · Physics 2009-11-13 Daniel Ceverino , Anatoly Klypin

We present a large suite of MHD simulations of turbulent, star-forming giant molecular clouds(GMCs) with stellar feedback, extending previous work by simulating 10 different random realizations for each point in the parameter space of cloud…

Stellar feedback, star formation and gravitational interactions are major controlling forces in the evolution of Giant Molecular Clouds (GMCs). To explore their relative roles, we examine the properties and evolution of GMCs forming in an…

Astrophysics of Galaxies · Physics 2015-06-23 Elizabeth J. Tasker , James Wadsley , Ralph Pudritz

We use simulations with realistic models for stellar feedback to study galaxy mergers. These high resolution (1 pc) simulations follow formation and destruction of individual GMCs and star clusters. The final starburst is dominated by in…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-02 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist , Desika Narayanan , Christopher C. Hayward , Norman Murray

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…

Star formation rates in the centers of disk galaxies often vastly exceed those at larger radii. We investigate the idea that these central starbursts are self-regulated, with the momentum flux injected to the ISM by star formation balancing…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Eve C. Ostriker , Rahul Shetty

Stellar winds and supernova (SN) explosions of massive stars ("stellar feedback") create bubbles in the interstellar medium (ISM) and insert newly produced heavy elements and kinetic energy into their surroundings, possibly driving…

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…

We develop a new realistic prescription for modeling the stellar feedback, which minimizes any ad hoc assumptions about sub-grid physics. We start with developing high resolution models of the ISM and formulate the conditions required for…

Astrophysics · Physics 2009-04-03 Daniel Ceverino , Anatoly Klypin

Star clusters interact with the interstellar medium (ISM) in various ways, most importantly in the destruction of molecular star-forming clouds, resulting in inefficient star formation on galactic scales. On cloud scales, ionizing radiation…

Astrophysics of Galaxies · Physics 2017-07-25 Daniel Rahner , Eric W. Pellegrini , Simon C. O. Glover , Ralf S. Klessen

We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a co-spatial mixture of cold and hot ISM components, and is formulated…

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…

Astrophysics · Physics 2009-11-11 Stefan Harfst , Christian Theis , Gerhard Hensler

We use numerical simulations of isolated galaxies to study the effects of stellar feedback on the formation and evolution of giant star-forming gas 'clumps' in high-redshift, gas-rich galaxies. Such galactic disks are unstable to the…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-02 Philip F. Hopkins , Dusan Keres , Norman Murray , Eliot Quataert , Lars Hernquist

Until recently, simulations that modeled entire galaxies were restricted to an isothermal or fixed 2- or 3-phase interstellar medium (ISM). This obscured the full role of the ISM in shaping the observed galactic-scale star formation…

Astrophysics · Physics 2008-02-28 Elizabeth J. Tasker , Greg L. Bryan , Jonathan C. Tan

We study gravitational instability and consequent star formation in a wide range of isolated disk galaxies, using three-dimensional, smoothed particle hydrodynamics simulations at resolution sufficient to fully resolve gravitational…

Astrophysics · Physics 2009-11-10 Yuexing Li , Mordecai-Mark Mac Low , Ralf S. Klessen
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