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Stars in star clusters are thought to form in a single burst from a common progenitor cloud of molecular gas. However, massive, old globular clusters -- with ages greater than 10 billion years and masses of several hundred thousand solar…

Astrophysics of Galaxies · Physics 2016-02-03 Chengyuan Li , Richard de Grijs , Licai Deng , Aaron M. Geller , Yu Xin , Yi Hu , Claude-Andre Faucher-Giguere

In spite of significant recent and ongoing research efforts, most of the early evolution and long-term fate of young massive star clusters remain clouded in uncertainties. Here, I discuss our understanding of the initial conditions of star…

Solar and Stellar Astrophysics · Physics 2015-05-14 Richard de Grijs

The aim of this study is to characterize the distribution and basic properties of the natal gas associated with high-mass young stellar objects (YSOs) in isolated environments in the Large Magellanic Cloud (LMC). High-mass stars usually…

Comparing N-body calculations that include primordial residual-gas expulsion with the observed properties of 20 Galactic globular clusters (GCs) for which the stellar mass function (MF) has been measured, we constrain the time-scale over…

Astrophysics of Galaxies · Physics 2015-05-18 Michael Marks , Pavel Kroupa

Stars form predominantly in clusters inside dense clumps of molecular clouds that are both turbulent and magnetized. The typical size and mass of the cluster-forming clumps are $\sim 1$ pc and $\sim 10^2 - $ 10$^3$ M$_\odot$, respectively.…

Astrophysics of Galaxies · Physics 2015-05-19 Fumitaka Nakamura , Zhi-Yun Li

We simulate the formation and evolution of young star clusters using the combination of SPH simulations and direct N-body simulations. We start by performing SPH simulations of the giant molecular cloud with a turbulent velocity field, a…

Astrophysics of Galaxies · Physics 2015-06-17 M. S. Fujii , S. Portegies Zwart

This article reviews some recent studies of the mass, age, and space distributions of star clusters, with a primary focus on the large population of clusters in the interacting Antennae galaxies. Some of the highlights of these studies are…

Astrophysics · Physics 2007-05-23 S. Michael Fall

It is widely believed that star clusters form with low star formation efficiencies. With the onset of stellar winds by massive stars or finally when the first super nova blows off, the residual gas is driven out of the embedded star…

Astrophysics of Galaxies · Physics 2015-05-27 P. Assmann , M. Fellhauer , P. Kroupa , R. C. Bruens , R. Smith

How stellar clusters disrupt, and over what timescales, is intimately linked with how they form. Here, we review the theory and observations of cluster disruption, both the suggested initial rapid dissolution phase (infant mortality) and…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-13 Nate Bastian

The three young clusters in the Galactic Center represent the closest examples of massive starbursts and they define the upper mass limit of the Galactic cluster mass functions. In this review, I describe the characteristics and content of…

Astrophysics · Physics 2007-05-23 Donald F. Figer

This review summarises the main properties of Young Massive Clusters (YMCs), including their population properties, particularly focusing on extragalactic cluster samples. We discuss potential biases and caveats that can affect the…

Astrophysics of Galaxies · Physics 2016-11-23 Nate Bastian

We test the hypothesis that globular clusters form in supergiant molecular clouds within high-redshift galaxies. Numerical simulations demonstrate that such large, dense, and cold gas clouds assemble naturally in current hierarchical models…

Astrophysics · Physics 2010-07-27 Oleg Y. Gnedin , Jose L. Prieto

Scenarios that invoke multiple episodes of star formation within young globular clusters (GCs) to explain the observed chemical and photometric anomalies in GCs, require that clusters can retain the stellar ejecta of the stars within them…

Astrophysics of Galaxies · Physics 2015-06-22 Nate Bastian , Jay Strader

The supermassive black hole at the center of the Milky Way plays host to a massive, young cluster that may have formed in one of the most inhospitable environments in the Galaxy. We present new measurements of the global properties of this…

Solar and Stellar Astrophysics · Physics 2015-06-12 Jessica R. Lu , Tuan Do , Andrea M. Ghez , Mark R. Morris , Sylvana Yelda , Keith Matthews

We undertake a systematic analysis of the early (< 0.5 Myr) evolution of clustering and the stellar initial mass function in turbulent fragmentation simulations. These large scale simulations for the first time offer the opportunity for a…

Astrophysics of Galaxies · Physics 2015-05-18 Th. Maschberger , C. J. Clarke , I. A. Bonnell , P. Kroupa

Young massive clusters (YMCs) are recently formed astronomical objects with unusually high star formation rates. We propose the collision of giant molecular clouds (GMCs) as a likely formation mechanism of YMCs, consistent with the YMC…

Astrophysics of Galaxies · Physics 2020-09-30 K. Y. Liow , C. L. Dobbs

I review the long-term survival chances of young massive star clusters (YMCs), hallmarks of intense starburst episodes often associated with violent galaxy interactions. In particular, I address the key question as to whether at least some…

Astrophysics · Physics 2007-11-26 Richard de Grijs

Subarcsecond infrared and radio observations yield important information about the formation of super star clusters from their surrounding gas. We discuss the general properties of ionized and molecular gas near young, forming SSCs, as…

Astrophysics · Physics 2007-05-23 Jean L. Turner , Sara C. Beck

We investigate the nature of star formation in gas-rich galaxies at $z > 7$ forming in a markedly overdense region, in the whereabouts of a massive virialized halo already exceeding $10^{12}$ M$_{\odot}$. We find that not only the primary…

Astrophysics of Galaxies · Physics 2024-11-04 Lucio Mayer , Floor van Donkelaar , Matteo Messa , Pedro R. Capelo , Angela Adamo

The mass function of molecular clouds and clumps is shallower than the mass function of young star clusters, gas-embedded and gas-free alike, as their respective mass function indices are $\beta_0 \simeq 1.7$ and $\beta_\star \simeq 2$. We…

Astrophysics of Galaxies · Physics 2015-05-20 Genevieve Parmentier
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