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

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We use two hydrodynamical simulations (with and without photoionising feedback) of the self-consistent evolution of molecular clouds (MCs) undergoing global hierarchical collapse (GHC), to study the effect of the feedback on the structural…

Astrophysics of Galaxies · Physics 2020-09-25 Alejandro González-Samaniego , Enrique Vazquez-Semadeni

Measurements of the star formation efficiency (SFE) of giant molecular clouds (GMCs) in the Milky Way generally show a large scatter, which could be intrinsic or observational. We use magnetohydrodynamic simulations of GMCs (including…

Understanding the formation of stellar clusters requires following the interplay between gas and newly formed stars accurately. We therefore couple the magnetohydrodynamics code FLASH to the N-body code ph4 and the stellar evolution code…

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

It has been suggested that, if the free-fall time of star-forming clouds is shorter than the lifetime ($\approx 3 $ Myr) of massive stars exploding as supernovae (SN), a large fraction of the cloud gas can be converted into stars during an…

Astrophysics of Galaxies · Physics 2025-09-26 A. Ferrara , D. Manzoni , E. Ntormousi

Observations that resolve nearby galaxies into individual regions across multiple phases of the gas-star formation-feedback ``matter cycle'' have provided a sharp new view of molecular clouds, star formation efficiencies, timescales for…

Astrophysics of Galaxies · Physics 2024-04-01 Eva Schinnerer , Adam K. Leroy

We examine various physical processes associated with the formation of globular clusters by using the three-dimensional Smoothed Particle Hydrodynamics (SPH) code. Our code includes radiative cooling of gases, star formation, energy…

Astrophysics · Physics 2009-10-31 Naohito Nakasato , Masao Mori , Ken'ichi Nomoto

The process of radiative feedback in Giant Molecular Clouds (GMCs) is an important mechanism for limiting star cluster formation through the heating and ionization of the surrounding gas. We explore the degree to which radiative feedback…

Astrophysics of Galaxies · Physics 2017-07-26 Corey Howard , Ralph Pudritz , William Harris

We investigate the origin of observed local star formation relations using radiative magnetohydrodynamic simulations with self-consistent star formation and ionising radiation. We compare these clouds to the density distributions of local…

Astrophysics of Galaxies · Physics 2017-09-06 Sam Geen , Juan D Soler , Patrick Hennebelle

This paper summarises results from semi-analytical modelling of star formation in protocluster clumps of different metallicities. In this model, gravitationally bound cores form uniformly in the clump following a prescribed core formation…

Astrophysics of Galaxies · Physics 2011-07-06 Sami Dib

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…

Astrophysics of Galaxies · Physics 2025-11-19 Birka Zimmermann , Stefanie Walch , Seamus D. Clarke , Richard Wünsch , Andre Klepitko

Various heuristic approaches to model unresolved supernova (SN) feedback in galaxy formation simulations exist to reproduce the formation of spiral galaxies and the overall inefficient conversion of gas into stars. Some models, however,…

Astrophysics of Galaxies · Physics 2017-03-08 Alejandro Núñez , Jeremiah P. Ostriker , Thorsten Naab , Ludwig Oser , Chia-Yu Hu , Ena Choi

Galaxy evolution is sensitive to how stars inject feedback into their surroundings. In particular, stellar feedback from star clusters strongly affects gas motions and the baryonic cycle, with more massive clusters having stronger effects.…

Astrophysics of Galaxies · Physics 2026-01-14 Luanna Veroneze Quinalha , Eric P. Andersson , Mordecai-Mark Mac Low

We present a model for the radiative output of star clusters in the process of star formation suitable for use in hydrodynamical simulations of radiative feedback. Gas in a clump, defined as a region whose density exceeds 10^4 cm^-3, is…

Astrophysics of Galaxies · Physics 2015-06-18 Corey S. Howard , Ralph E. Pudritz , William E. Harris

We model the formation of star clusters in a dwarf galaxy progenitor during the first $700 ~{\rm Myr}$ of cosmic history using a cosmological radiation-hydrodynamic simulation with a sub-grid star formation efficiency (SFE) model calibrated…

Astrophysics of Galaxies · Physics 2025-10-03 Fred Angelo Batan Garcia , Massimo Ricotti , Kazuyuki Sugimura

Feedback from massive stars is thought to play an important role in the evolution of molecular clouds. In this work we analyse the effects of stellar winds and supernovae (SNe) in the evolution of two massive ($\sim 10^6\,M_\odot$) giant…

Astrophysics of Galaxies · Physics 2016-10-11 Ramon Rey-Raposo , Clare Dobbs , Oscar Agertz , Christian Alig

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…

Astrophysics of Galaxies · Physics 2024-10-10 Yvonne A. Fichtner , Jonathan Mackey , Luca Grassitelli , Emilio Romano-Díaz , Cristiano Porciani

Using hydrodynamic simulations of disc-galaxy major mergers, we investigate the star formation history and remnant properties when various parametrizations of a simple stellar feedback model are implemented. The simulations include…

Astrophysics · Physics 2007-09-25 T. J. Cox , Patrik Jonsson , Joel R. Primack , Rachel S. Somerville

We systematically investigate how cloud-cloud collisions influence star formation, emphasizing the roles of collision velocity, magnetic field orientation, and radiative feedback. Using the first cloud-cloud collision simulations that model…

Astrophysics of Galaxies · Physics 2026-01-13 Tabassum S. Tanvir , Michael Y. Grudić

We numerically simulate some of the most critical physical processes in galaxy formation: The supernova feedback, in conjunction with gasdynamics and gravity, plays a crucial role in determining how galaxies arise within the context of a…

Astrophysics · Physics 2015-06-24 G. Yepes , R. Kates , A. Khokhlov , A. Klypin