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Related papers: Molecular Cloud Evolution V. Cloud Destruction by …

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We numerically investigate the effect of feedback from the ionizing radiation heating from massive stars on the evolution of giant molecular clouds (GMCs) and their star formation efficiency (SFE). We find that the star-forming regions…

Astrophysics of Galaxies · Physics 2015-05-14 Enrique Vazquez-Semadeni , Pedro Colin , Gilberto C. Gomez , Alan Watson

Molecular clouds are turbulent structures whose star formation efficiency (SFE) is strongly affected by internal stellar feedback processes. In this paper we determine how sensitive the SFE of molecular clouds is to randomised inputs in the…

Astrophysics of Galaxies · Physics 2019-06-20 Sam Geen , Stuart K. Watson , Joakim Rosdahl , Rebekka Bieri , Ralf S. Klessen , Patrick Hennebelle

UV radiation feedback from young massive stars plays a key role in the evolution of giant molecular clouds (GMCs) by photoevaporating and ejecting the surrounding gas. We conduct a suite of radiation hydrodynamic simulations of star cluster…

Astrophysics of Galaxies · Physics 2018-06-06 Jeong-Gyu Kim , Woong-Tae Kim , Eve C. Ostriker

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 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

Most stars in the Galaxy are believed to be formed within star clusters from collapsing molecular clouds. However, the complete process of star formation, from the parent cloud to a gas-free star cluster, is still poorly understood. We…

Astrophysics of Galaxies · Physics 2017-10-23 Elena Gavagnin , Andreas Bleuler , Joakim Rosdahl , Romain Teyssier

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

We use magnetohydrodynamical simulations of converging warm neutral medium flows to analyse the formation and global evolution of magnetised and turbulent molecular clouds subject to supernova feedback from massive stars. We show that…

Astrophysics of Galaxies · Physics 2016-04-27 Bastian Körtgen , Daniel Seifried , Robi Banerjee , Enrique Vázquez-Semadeni , Manuel Zamora-Avilés

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 discuss the dependence of various properties of the star formation rate (SFR) and efficiency (SFE) in molecular clouds (MCs) on the maximum mass reached by the clouds, based on a previously-published model for MC and SFR evolution in…

Solar and Stellar Astrophysics · Physics 2015-06-17 Manuel Zamora-Avilés , Enrique Vázquez-Semadeni

Momentum deposition by radiation pressure from young, massive stars may help to destroy molecular clouds and unbind stellar clusters by driving large-scale outflows. We extend our previous numerical radiation hydrodynamic study of…

Astrophysics of Galaxies · Physics 2017-12-06 Sudhir Raskutti , Eve C. Ostriker , M. Aaron Skinner

The accumulation, compression and cooling of the ambient interstellar medium (ISM) in large-scale flows powered by OB cluster feedback can drive the production of dense molecular clouds. We review the current state of the field, with a…

Astrophysics of Galaxies · Physics 2013-04-10 J. R. Dawson

The role of feedback from massive stars is believed to be a key element in the evolution of molecular clouds. We use high-resolution 3D SPH simulations to explore the dynamical effects of a single O7 star located at the centre of a…

Astrophysics of Galaxies · Physics 2015-06-05 S. Walch , A. P. Whitworth , T. Bisbas , R. Wunsch , D. Hubber

We investigate how the removal of interstellar material by stellar feedback limits the efficiency of star formation in molecular clouds and how this determines the shape of the mass function of young star clusters. In particular, we derive…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Michael Fall , Mark R. Krumholz , Christopher D. Matzner

Energetic feedback from star clusters plays a pivotal role in shaping the dynamical evolution of giant molecular clouds (GMCs). To study the effects of stellar feedback on the star formation efficiency of the clouds and the dynamical…

Astrophysics of Galaxies · Physics 2019-05-29 Hui Li , Mark Vogelsberger , Federico Marinacci , Oleg Y. Gnedin

Molecular cloud structure is regulated by stellar feedback in various forms. Two of the most important feedback processes are UV photoionisation and supernovae from massive stars. However, the precise response of the cloud to these…

Astrophysics of Galaxies · Physics 2016-09-21 Sam Geen , Patrick Hennebelle , Pascal Tremblin , Joakim Rosdahl

We study star cluster formation in various environments with different metallicities and column densities by performing a suite of three-dimensional radiation hydrodynamics simulations. We find that the photoionization feedback from massive…

Astrophysics of Galaxies · Physics 2020-08-25 Hajime Fukushima , Hidenobu Yajima , Kazuyuki Sugimura , Takashi Hosokawa , Kazuyuki Omukai , Tomoaki Matsumoto

We investigate how star formation efficiency can be significantly decreased by the removal of a molecular cloud's envelope by feedback from an external source. Feedback from star formation has difficulties halting the process in dense gas…

Astrophysics of Galaxies · Physics 2017-02-01 William Lucas , Ian Bonnell , Duncan Forgan

We examine the combined effects of winds and photoionizing radiation from O--type stars on embedded stellar clusters formed in model turbulent molecular clouds covering a range of masses and radii. We find that feedback is able to increase…

Astrophysics of Galaxies · Physics 2015-08-06 J. E. Dale , B. Ercolano , I. A. Bonnell

We study the effect of stellar feedback (photodissociation/ionization, radiation pressure and winds) on the evolution of a Giant Molecular Cloud (GMC), by means of a 3D radiative transfer, hydro-simulation implementing a complex chemical…

Astrophysics of Galaxies · Physics 2022-07-11 D. Decataldo , A. Lupi , A. Ferrara , A. Pallottini , M. Fumagalli
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