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Young massive clusters are as young as open clusters but more massive and compact compared with typical open clusters. The formation process of young massive clusters is still unclear, and it is an open question whether the formation…

Astrophysics of Galaxies · Physics 2015-06-23 Michiko S. Fujii

An overview of our current understanding of the formation and evolution of star clusters is given, with main emphasis on high-mass clusters. Clusters form deeply embedded within dense clouds of molecular gas. Left-over gas is cleared within…

Astrophysics of Galaxies · Physics 2015-05-14 Soeren S. Larsen

More and more observations indicate that young star clusters could retain imprints of their formation process. In particular, the degree of substructuring and rotation are possibly the direct result of the collapse of the parent molecular…

Astrophysics of Galaxies · Physics 2020-06-17 Alessandro Ballone , Michela Mapelli , Ugo N. Di Carlo , Stefano Torniamenti , Mario Spera , Sara Rastello

We perform $N$-body simulations of star clusters in time-dependant galactic potentials. Since the Milky Way was built-up through mergers with dwarf galaxies, its globular cluster population is made up of clusters formed both during the…

Astrophysics of Galaxies · Physics 2015-12-23 Meghan Miholics , Jeremy J. Webb , Alison Sills

We present simulations of the dynamical evolution of young embedded star clusters. Our initial conditions are directly derived from X-ray, infrared, and radio observations of local systems, and our models evolve both gas and stars…

Astrophysics of Galaxies · Physics 2018-03-20 Alison Sills , Steven Rieder , Jennifer Scora , Jessica McCloskey , Sarah Jaffa

In a series of three papers, we introduced a novel cluster formation model that describes the formation, growth, and disruption of star clusters in high-resolution cosmological simulations. We tested this model on a Milky Way-sized galaxy…

Astrophysics of Galaxies · Physics 2020-03-18 Hui Li , Oleg Gnedin

Most young stars in nearby molecular clouds have estimated ages of 1-2 Myr, suggesting that star formation is rapid. However, small numbers of stars in these regions with inferred ages of >= 5-10 Myr have been cited to argue that star…

Solar and Stellar Astrophysics · Physics 2015-06-03 Lee Hartmann , Javier Ballesteros-Paredes , Fabian Heitsch

We investigate the properties and evolution of star particles in two simulations of isolated spiral galaxies, and two galaxies from cosmological simulations. Unlike previous numerical work, where typically each star particle represents one…

A large sample of young stellar groups is analysed aiming to investigate their clustering properties and dynamical evolution. A comparison of the Q statistical parameter, measured for the clusters, with the fractal dimension estimated for…

Solar and Stellar Astrophysics · Physics 2015-06-23 J. Gregorio-Hetem , A. Hetem , T. Santos-Silva , B. Fernandes

Stars mostly form in groups consisting of a few dozen to several ten thousand members. For 30 years, theoretical models provide a basic concept of how such star clusters form and develop: they originate from the gas and dust of collapsing…

Astrophysics of Galaxies · Physics 2015-06-22 S. Pfalzner , G. Parmentier , M. Steinhausen , K. Vincke , K. Menten

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…

Astrophysics of Galaxies · Physics 2018-12-26 Juan P. Farias , Jonathan C. Tan , Sourav Chatterjee

We use N-body integration to follow the evolution of clusters of 200 binary systems with different initial half mass radii $R_{0.5}$. We also simulate single-star clusters. All clusters evolve according to the same $n(t)$ curve, where…

Astrophysics · Physics 2015-06-24 Pavel Kroupa

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…

Astrophysics of Galaxies · Physics 2023-09-21 Juan P. Farias , Stella S. R. Offner , Michael Y. Grudić , Dávid Guszejnov , Anna L. Rosen

Understanding the formation and evolution of young star clusters requires quantitative statistical measures of their structure. We investigate the structures of observed and modelled star-forming clusters. By considering the different…

Astrophysics · Physics 2007-05-23 S. Schmeja , R. S. Klessen

This paper investigates the dynamical evolution of embedded stellar clusters from the protocluster stage, through the embedded star-forming phase, and out to ages of 10 Myr -- after the gas has been removed from the cluster. The relevant…

Solar and Stellar Astrophysics · Physics 2014-11-20 Eva-Marie Proszkow , Fred C. Adams

The study of star cluster evolution necessitates modeling how their density profiles develop from their natal gas distribution. Observational evidence indicates that many star clusters follow a Plummer-like density profile. However, most…

A high number of embedded clusters is found in the Galaxy. Depending on the formation scenario, most of them can evolve to unbounded groups that are dissolved within a few tens of Myr. A systematic study of young stellar clusters showing…

Astrophysics of Galaxies · Physics 2015-06-11 T. Santos-Silva , J. Gregorio-Hetem

Recent observations of young embedded clumpy clusters and statistical identifications of binary star clusters have provided new insights into the formation process and subsequent dynamical evolution of star clusters. The early dynamical…

Astrophysics of Galaxies · Physics 2021-07-08 R. Darma , M. I. Arifyanto , M. B. N. Kouwenhoven

We probe the evolution of globular clusters that could form in giant molecular clouds within high-redshift galaxies. Numerical simulations demonstrate that the large and dense enough gas clouds assemble naturally in current hierarchical…

Astrophysics · Physics 2009-11-13 Oleg Y. Gnedin , Jose L. Prieto

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…

Astrophysics of Galaxies · Physics 2017-04-05 Juan P. Farias , Jonathan C. Tan , Sourav Chatterjee
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