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相关论文: Star cluster formation from turbulent clumps. V. S…

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We study the formation and early evolution of star clusters that have a wide range of masses and background cloud mass surface densities, $\Sigma_{\rm cloud}$, which help set the initial sizes, densities, and velocity dispersions of the…

星系天体物理 · 物理学 2023-06-08 Juan P. Farias , Jonathan C. Tan

We investigate the formation and early evolution of star clusters assuming that they form from a turbulent starless clump of given mass bounded inside a parent self-gravitating molecular cloud characterized by a particular mass surface…

星系天体物理 · 物理学 2017-04-05 Juan P. Farias , Jonathan C. Tan , Sourav Chatterjee

We review recent work that investigates the formation of stellar clusters, ranging in scale from globular clusters through open clusters to the small scale aggregates of stars observed in T associations. In all cases, recent advances in…

天体物理学 · 物理学 2007-05-23 Cathie J. Clarke , Ian A. Bonnell , Lynne A. Hillenbrand

We investigate the physical processes which lead to the formation of massive stars. Using a numerical simulation of the formation of a stellar cluster from a turbulent molecular cloud, we evaluate the relevant contributions of fragmentation…

天体物理学 · 物理学 2008-11-26 I. A. Bonnell , S. G. Vine , M. R. Bate

I review the status of massive star formation theories: accretion from collapsing, massive, turbulent cores; competitive accretion; and stellar collisions. I conclude the observational and theoretical evidence favors the first of these…

天体物理学 · 物理学 2015-06-24 Jonathan C. Tan

We investigate the dynamical evolution of star clusters during their formation, assuming that they are born from a turbulent starless clump of a given mass that is embedded within a parent self-gravitating molecular cloud characterized by a…

星系天体物理 · 物理学 2018-12-26 Juan P. Farias , Jonathan C. Tan , Sourav Chatterjee

Young stars form on a wide range of scales, producing aggregates and clusters with various degrees of gravitational self-binding. The loose aggregates have a hierarchical structure in both space and time that resembles interstellar…

天体物理学 · 物理学 2007-05-23 B. G. Elmegreen , Y. N. Efremov , R. E. Pudritz , H. Zinnecker

The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open…

天体物理学 · 物理学 2015-06-24 Simon F. Portegies Zwart , Stephen L. W. McMillan , Piet Hut , Junichiro Makino

We present a novel approach to the riddle of star cluster multiple populations. Stars form from molecular cores. But not all cores form stars. Following their initial compression, such 'failed' cores re-expand, rather than collapsing. We…

星系天体物理 · 物理学 2022-01-19 G. Parmentier , A. Pasquali

The enormous radiative and mechanical luminosities of massive stars impact a vast range of scales and processes, from the reionization of the universe, to the evolution of galaxies, to the regulation of the interstellar medium, to the…

Most stars form in highly clustered environments within molecular clouds, but eventually disperse into the distributed stellar field population. Exactly how the stellar distribution evolves from the embedded stage into gas-free associations…

星系天体物理 · 物理学 2023-09-21 Juan P. Farias , Stella S. R. Offner , Michael Y. Grudić , Dávid Guszejnov , Anna L. Rosen

In this review, I present the case for how massive stars may form through stellar collisions. This mechanism requires very high stellar densities, up to 4 orders of magnitude higher than are observed in the cores of dense young clusters. In…

天体物理学 · 物理学 2007-05-23 Ian A. Bonnell

Stars form with a complex and highly structured distribution. For a smooth star cluster to form from these initial conditions, the star cluster must erase this substructure. We study how substructure is removed using N-body simulations that…

星系天体物理 · 物理学 2015-05-28 R. Smith , R. Slater , M. Fellhauer , S. Goodwin , P. Assmann

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…

星系天体物理 · 物理学 2025-10-03 Fred Angelo Batan Garcia , Massimo Ricotti , Kazuyuki Sugimura

Star formation is intimately linked to the dynamical evolution of molecular clouds. Turbulent fragmentation determines where and when protostellar cores form, and how they contract and grow in mass via accretion from the surrounding cloud…

天体物理学 · 物理学 2007-05-23 Ralf Klessen

Most star complexes are in fact complexes of stars, clusters and gas clouds; term "star complexes" was introduced as general one disregarding the preferential content of a complex. Generally the high rate of star formation in a complex is…

天体物理学 · 物理学 2007-05-23 Yu. N. Efremov

Massive stars are known to have a high multiplicity, with examples of higher order multiples among the nearest and best studied objects. In this paper we study hierarchical multiple systems (an inner binary as a component of a wider binary)…

太阳与恒星天体物理 · 物理学 2013-01-30 Nickolas Moeckel , Ian A. Bonnell

Stars form in dense, clustered environments, where feedback from newly formed stars eventually ejects the gas, terminating star formation and leaving behind one or more star clusters. Using the STARFORGE simulations, it is possible to…

Recent simulation work has successfully captured the formation of the star clusters that have been observed in merging galaxies. These studies, however, tend to focus on studying extreme starbursts, such as the Antennae galaxies. We aim to…

宇宙学与河外天体物理 · 物理学 2015-06-16 Leila C. Powell , Frederic Bournaud , Damien Chapon , Romain Teyssier

The formation of massive stellar clusters is intricately linked to star formation on local and global scales. All actively star forming galaxies are forming clusters, and the local initial conditions likely determine whether bound massive…

宇宙学与河外天体物理 · 物理学 2012-08-17 Nate Bastian
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