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Related papers: Simulations of pre-supernova feedback in spherical…

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

Astrophysics of Galaxies · Physics 2017-01-25 C. J. Wareing , J. M. Pittard , S. A. E. G. Falle

We present a series of high-resolution cosmological simulations of galaxy formation to z=0, spanning halo masses ~10^8-10^13 M_sun, and stellar masses ~10^4-10^11. Our simulations include fully explicit treatment of both the multi-phase ISM…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-13 Philip F. Hopkins , Dusan Keres , Jose Onorbe , Claude-Andre Faucher-Giguere , Eliot Quataert , Norm Murray , James S. Bullock

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…

Astrophysics of Galaxies · Physics 2018-03-12 Ji-hoon Kim , Mark R. Krumholz , John H. Wise , Matthew J. Turk , Nathan J. Goldbaum , Tom Abel

The effects of wind-driven star formation feedback on the spatio-temporal organization of stars and gas in galaxies is studied using two-dimensional intermediate-representational quasi-hydrodynamical simulations. The model retains only a…

Astrophysics · Physics 2009-10-31 David Chappell , John Scalo

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 investigate radiative feedback from a 34 M$_\odot$ star in a $10^4$ M$_\odot$ turbulent cloud using three-dimensional radiation-hydrodynamics (RHD) models. We use Monte Carlo radiative transfer to accurately compute photoionization…

Astrophysics of Galaxies · Physics 2019-06-26 Ahmad A. Ali , Tim J. Harries

We study the impact of Ly$\alpha$ radiation feedback on globular cluster (GC) formation. In this Letter, we analytically derive the relation between star formation efficiency (SFE) and metallicity in spherical clouds with the Ly$\alpha$…

Astrophysics of Galaxies · Physics 2018-02-21 Makito Abe , Hidenobu Yajima

We simulate the effects of massive star feedback, via winds and SNe, on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We use 3D hydrodynamic models with a temperature dependent average particle…

Astrophysics of Galaxies · Physics 2012-09-25 Julian Pittard , Hazel Rogers

Context. The impact of stellar feedback on the Kennicutt-Schmidt law (KS law), which relates star formation rate (SFR) to surface gas density, is a topic of ongoing debate. The interpretation of individual cloud observations is challenging…

Astrophysics of Galaxies · Physics 2023-12-01 Paolo Suin , Annie Zavagno , Tine Colman , Patrick Hennebelle , Antoine Verliat , Delphine Russeil

We explore the impact of star formation and thermal stellar feedback on the giant molecular cloud (GMC) population forming in a M83-type barred spiral galaxy. We compare three high-resolution simulations (1.5 pc cell size) with different…

Astrophysics of Galaxies · Physics 2016-07-27 Yusuke Fujimoto , Greg L. Bryan , Elizabeth J. Tasker , Asao Habe , Christine M. Simpson

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…

We investigated the effect of photoionising feedback inside turbulent star-forming clouds, comparing the resultant star formation in both idealised profiles and more realistic cloud structures drawn from a global galaxy simulation. We…

Astrophysics of Galaxies · Physics 2017-09-19 Kazuhiro Shima , Elizabeth J. Tasker , Asao Habe

Globular clusters are considerably more complex structures than previously thought, harbouring at least two stellar generations which present clearly distinct chemical abundances. Scenarios explaining the abundance patterns in globular…

Astrophysics of Galaxies · Physics 2015-11-12 F. Calura , C. G. Few , D. Romano , A. D'Ercole

We perform calculations of isolated disc galaxies to investigate how the properties of the ISM, the nature of molecular clouds, and the global star formation rate depend on the level of stellar feedback. We adopt a simple physical model,…

Astrophysics of Galaxies · Physics 2015-05-28 C. L. Dobbs , A. Burkert , J. E. Pringle

[Abridged] We present the first results of hydrodynamical simulations that follow the formation of galaxies to z=0 in spherical regions of radius ~20 Mpc/h drawn from the Millennium Simulation. The regions have overdensities that deviate by…

We simulate the formation and evolution of young star clusters using the combination of SPH simulations and direct N-body simulations. We start by performing SPH simulations of the giant molecular cloud with a turbulent velocity field, a…

Astrophysics of Galaxies · Physics 2015-06-17 M. S. Fujii , S. Portegies Zwart

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

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…

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

The relation between the star formation rate and the kinetic energy increase in a region containing a large number of stellar sources is investigated as a possible prescription for star formation feedback in larger scale galaxy evolution…

Astrophysics · Physics 2009-10-31 John Scalo , David Chappell

The heart of the Large Magellanic Cloud, 30 Doradus, is a complex region with a clear core-halo structure. Feedback from the stellar cluster R$\,$136 has been shown to be the main source of energy creating multiple pc-scale expanding-shells…