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Related papers: The formation of young massive clusters by collidi…

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Stars form predominantly in clusters inside dense clumps of turbulent, magnetized molecular clouds. The typical size and mass of the cluster-forming clumps are \sim 1 pc and \sim 10^2 - 10^3 M_\odot, respectively. Here, we discuss some…

Solar and Stellar Astrophysics · Physics 2015-06-11 Fumitaka Nakamura , Zhi-Yun Li

We investigate the effect of star formation and diffuse photoelectric heating on the properties of giant molecular clouds (GMCs) formed in high resolution (~< 10 pc) global (~ 20 kpc) simulations of isolated Milky Way-type galaxy disks. The…

Astrophysics of Galaxies · Physics 2015-05-27 Elizabeth J. Tasker

In the present-day universe, it appears that most, and perhaps all, massive stars are born in star clusters. It also appears that all star clusters contain stars drawn from an approximately universal initial mass function, so that almost…

Astrophysics · Physics 2017-03-08 Jonathan C. Tan

Star formation is triggered in essentially three ways: (1) the pressures from existing stars collect and squeeze nearby dense gas into gravitationally unstable configurations, (2) random compression from supersonic turbulence makes new…

Astrophysics · Physics 2007-05-23 B. G. Elmegreen

The Galactic center is a hotbed of star formation activity, containing the most massive star formation site and three of the most massive young star clusters in the Galaxy. Given such a rich environment, it contains more stars with initial…

Astrophysics · Physics 2015-05-13 D. F. Figer

We present a new implementation of star formation in cosmological simulations, by considering star clusters as a unit of star formation. Cluster particles grow in mass over several million years at the rate determined by local gas…

Astrophysics of Galaxies · Physics 2017-01-11 Hui Li , Oleg Y. Gnedin , Nickolay Y. Gnedin , Xi Meng , Vadim A. Semenov , Andrey V. Kravtsov

We first present chemodynamical simulations to investigate how stellar winds of massive stars influence early dynamical and chemical evolution of forming globular clusters (GCs). In our numerical models, GCs form in turbulent,high-density…

Astrophysics · Physics 2009-06-23 Kenji Bekki , Masashi Chiba

Multiple mechanisms are proposed for the formation of giant molecular clouds (GMCs), from gravitational free-fall caused by self-gravity to stellar feedback-driven gas compression. Both the galactic environment and galaxy conditions could…

The conditions required for massive star formation are debated, particularly whether massive stars must form in conjunction with massive clusters. Some authors have advanced the view that stars of any mass (below the total cluster mass) can…

Astrophysics of Galaxies · Physics 2023-09-29 Jamie D. Smith , Sarah E. Jaffa , Martin G. H. Krause

Protostars and young stars are strongly spatially "clustered" or "correlated" within their natal giant molecular clouds (GMCs). We demonstrate that such clustering leads to the conclusion that the incident bolometric radiative flux upon a…

Solar and Stellar Astrophysics · Physics 2020-05-06 Eve J. Lee , Philip F. Hopkins

In this contribution, our knowledge of the initial conditions under which massive star formation takes place is reviewed. Massive stars are born in massive clumps of giant molecular clouds (GMCs), hence first the properties of GMCs are…

Astrophysics · Physics 2007-12-19 Friedrich Wyrowski

Newborn stars form within the localized, high density regions of molecular clouds. The sequence and rate at which stars form in dense clumps and the dependence on local and global environments are key factors in developing descriptions of…

Astrophysics of Galaxies · Physics 2016-03-23 M. Heyer , R. Gutermuth , J. S. Urquhart , T. Csengeri , M. Wienen , S. Leurini , K. Menten , F. Wyrowski

We present hydrodynamic simulations of self-gravitating dense gas in a galactic disk, exploring scales ranging from 1 kpc down to $\sim 0.1$~pc. Our primary goal is to understand how dense filaments form in Giant Molecular Clouds (GMCs).…

Solar and Stellar Astrophysics · Physics 2015-05-27 Michael J. Butler , Jonathan C. Tan , Sven Van Loo

(Abridged) The formation of molecular clouds (MCs) from the diffuse interstellar gas appears to be a necessary step for star formation, as young stars invariably occur within them. However, the mechanisms controlling the formation of MCs…

Astrophysics · Physics 2007-11-26 P. Hennebelle , M. -M. Mac Low , E. Vazquez-Semadeni

The Large Magellanic Cloud is one of the nearest galaxies to us and is one of only few galaxies where the star formation history can be determined from studying resolved stellar populations. We have compiled a new catalogue of ages,…

Astrophysics of Galaxies · Physics 2015-06-05 Holger Baumgardt , Genevieve Parmentier , Peter Anders , Eva K. Grebel

Star formation is a fundamental process for galactic evolution. One issue over the last several decades has been determining whether star formation is induced by external triggers or is self-regulated in a closed system. The role of an…

Astrophysics of Galaxies · Physics 2020-12-16 Yasuo Fukui , Asao Habe , Tsuyoshi Inoue , Rei Enokiya , Kengo Tachihara

One of the leading models for the formation of multiple stellar populations within globular clusters is the "Fast Rotating Massive Star" (FRMS) scenario, where the ejecta of rapidly rotating massive stars is mixed with primordial material…

Astrophysics of Galaxies · Physics 2015-06-22 Nate Bastian , Katie Hollyhead , Ivan Cabrera-Ziri

The discovery of gravitationally lensed stellar clusters at high redshift with the James Webb Space Telescope (JWST) has revealed extremely compact, massive star-forming systems in galaxies at $z > 6$, providing a new window into early…

Astrophysics of Galaxies · Physics 2026-05-13 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Debora Sijacki , Angela Adamo

The mm-wave continuum sources (MCS) in Ophiuchus have mutual collision rates less than their collapse rates by a factor of 10 to 100, suggesting most will form stars without further interactions. However, this ratio of rates would have…

Astrophysics · Physics 2009-11-07 Bruce G. Elmegreen , Mohsen Shadmehri

We describe a population of young star clusters (SCs) formed in a hydrodynamical simulation of a gas-rich dwarf galaxy merger resolved with individual massive stars at sub-parsec spatial resolution. The simulation is part of the GRIFFIN…