English
Related papers

Related papers: Radiation driven implosion and triggered star form…

200 papers

Accumulating observational evidence for a number of radio galaxies suggests an association between their jets and regions of active star formation. The standard picture is that shocks generated by the jet propagate through an inhomogeneous…

Astrophysics · Physics 2009-11-10 P. Chris Fragile , Stephen D. Murray , Peter Anninos , Wil van Breugel

Winds from young massive stars contribute a large amount of energy to their host molecular clouds. This has consequences for the dynamics and observable structure of star-forming clouds. In this paper, we present radiative…

Astrophysics of Galaxies · Physics 2020-12-09 Sam Geen , Rebekka Bieri , Joakim Rosdahl , Alex de Koter

We present the results of a series of calculations studying the collapse of molecular cloud cores performed using a three-dimensional smoothed particle hydr odynamics code with radiative transfer in the flux-limited diffusion approximation.…

Astrophysics · Physics 2009-11-13 Stuart C. Whitehouse , Matthew R. Bate

In a new simple model I reconcile two contradictory views on the factors that determine the rate at which molecular clouds form stars -- internal structure vs. external, environmental influences -- providing a unified picture for the…

Astrophysics of Galaxies · Physics 2016-02-17 Sharon E. Meidt

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

We use three-dimensional radiation hydrodynamic (RHD) simulations to study the formation of massive star clusters under the combined effects of direct ultraviolet (UV) and dust-reprocessed infrared (IR) radiation pressure. We explore a…

Astrophysics of Galaxies · Physics 2023-03-29 Shyam H. Menon , Christoph Federrath , Mark R. Krumholz

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

We simulate the formation and chemodynamical evolution of 128 elliptical galaxies using a GRAPE-SPH code that includes various physical processes that are associated with the formation of stellar systems: radiative cooling, star formation,…

Astrophysics · Physics 2009-11-11 Chiaki Kobayashi

We perform two-dimensional and three-dimensional radiation hydrodynamic simulations to study cold clouds accelerated by radiation pressure on dust in the environment of rapidly star-forming galaxies dominated by infrared flux. We utilize…

Astrophysics of Galaxies · Physics 2018-02-28 Dong Zhang , Shane W. Davis , Yan-Fei Jiang , James M. Stone

The direct comparison between hydrodynamical simulations and observations is needed to improve the physics included in the former and test biases in the latter. Post-processing radiative transfer and synthetic observations are now the…

Thermal and chemical evolution of primordial gas clouds irradiated with far-ultraviolet (FUV; < 13.6 eV) radiation is investigated. In clouds irradiated by intense FUV radiation, sufficient hydrogen molecules to be important for cooling are…

Astrophysics · Physics 2009-10-31 Kazuyuki Omukai

Star formation depends on the available gaseous "fuel" as well as galactic environment, with higher specific star formation rates where gas is predominantly molecular and where stellar (and dark matter) densities are higher. The partition…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Eve C. Ostriker

The evolution of radiation emitted during the dynamical collapse of metal-free protostellar clouds is investigated within a spherically symmetric hydrodynamical scheme that includes the transfer of radiation and the chemistry of the…

Astrophysics · Physics 2009-11-06 Emanuele Ripamonti , Francesco Haardt , Andrea Ferrara , Monica Colpi

(abridged version) Identifying the processes that determine the initial mass function of stars (IMF) is a fundamental problem in star formation theory. One of the major uncertainties is the exact chemical state of the star forming gas and…

Astrophysics · Physics 2015-11-11 R. S. Klessen , A. -K. Jappsen , R. B. Larson , Y. Li , M. -M. Mac Low

The evolution of collapsing clouds embedded in different star-forming environments is investigated using three-dimensional non-ideal magnetohydrodynamics simulations considering different cloud metallicities ($Z/\thinspace Z_\odot$ = 0,…

Solar and Stellar Astrophysics · Physics 2019-04-24 Koki Higuchi , Masahiro N. Machida , Hajime Susa

Star clusters are known to be formed in turbulent molecular clouds. How turbulence is driven in molecular clouds and what effect this has on star formation is still unclear. We compare a simulation setup with turbulent driving everywhere in…

Astrophysics of Galaxies · Physics 2022-09-28 Jamie D. Smith , James E. Dale , Sarah E. Jaffa , Martin G. H. Krause

We investigate the interplay between the ionization radiation from massive stars and the turbulence inside the surrounding molecular gas thanks to 3D numerical simulations. We used the 3D hydrodynamical code HERACLES to model an initial…

Solar and Stellar Astrophysics · Physics 2015-06-05 P. Tremblin , E. Audit , V. Minier , W. Schmidt , N. Schneider

We describe high resolution Smoothed Particle Hydrodynamics (SPH) simulations of three approximately $M_*$ field galaxies starting from \LCDM initial conditions. The simulations are made intentionally simple, and include photoionization,…

Astrophysics · Physics 2009-11-11 Thorsten Naab , Peter H. Johansson , Jeremiah P. Ostriker , George Efstathiou

Dense pockets of cold, molecular gas precede the formation of stars. During their infancy and later phases of evolution, stars inject considerable energy into the interstellar medium by driving shocks either due to ionising radiation or…

Astrophysics of Galaxies · Physics 2011-12-02 S. Anathpindika

We study the impact of stellar winds and supernovae on the multi-phase interstellar medium using three-dimensional hydrodynamical simulations carried out with FLASH. The selected galactic disc region has a size of (500 pc)$^2$ x $\pm$ 5 kpc…

Astrophysics of Galaxies · Physics 2017-01-25 A. Gatto , S. Walch , T. Naab , P. Girichidis , R. Wünsch , S. C. O. Glover , R. S. Klessen , P. C. Clark , T. Peters , D. Derigs , C. Baczynski , J. Puls
‹ Prev 1 3 4 5 6 7 10 Next ›