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We perform simulations of star cluster formation to investigate the morphological evolution of embedded star clusters in the earliest stages of their evolution. We conduct our simulations with Torch, which uses the AMUSE framework to couple…

Fragmentation and fission of giant molecular clouds occasionally results in a pair of gravitationally bound star clusters that orbit their mutual centre of mass for some time, under the influence of internal and external perturbations. We…

Astrophysics of Galaxies · Physics 2016-02-17 R. Priyatikanto , M. B. N. Kouwenhoven , M. I. Arifyanto , H. R. T. Wulandari , S. Siregar

We describe the interplay between stellar evolution and dynamical mass loss of evolving star clusters, based on the principles of stellar evolution and cluster dynamics and on a grid of N-body simulations of cluster models. The cluster…

Astrophysics of Galaxies · Physics 2015-05-19 Henny J. G. L. M. Lamers , Holger Baumgardt , Mark Gieles

Dynamical evolution plays a key role in shaping the current properties of star clusters and star cluster systems. A detailed understanding of the effects of evolutionary processes is essential to be able to disentangle the properties which…

Astrophysics of Galaxies · Physics 2015-05-14 Enrico Vesperini

A revision of Stodolkiewicz's Monte Carlo code is used to simulate the evolution of million body star clusters. The new method treats each superstar as a single star and follows the evolution and motion of all individual stellar objects. A…

Astrophysics · Physics 2009-11-11 Mirek Giersz

Observations of young open clusters show a bimodal distribution of stellar rotation. Sun-like stars in those clusters group into two main sub-populations of fast and slow rotators. Beyond an age of about 500 Myrs, the two populations…

Solar and Stellar Astrophysics · Physics 2018-08-07 P. Gondoin

A concordance model for angular momentum evolution has been developed by multiple investigators. This approach postulates that star forming regions and clusters are an evolutionary sequence which can be modeled with assumptions about the…

Solar and Stellar Astrophysics · Physics 2016-12-14 Carl T. Coker , Marc Pinsonneault , Donald M. Terndrup

We investigate the evolution, following gas dispersal, of a star cluster produced from a hydrodynamical calculation. We find that when the gas, initially comprising 60% of the mass, is removed, the system settles into a bound cluster…

Solar and Stellar Astrophysics · Physics 2015-05-18 Nickolas Moeckel , Matthew R. Bate

Gas motions in the hot intracluster medium of galaxy clusters have an important effect on the mass determination of the clusters through X-ray observations. The corresponding dynamical pressure has to be accounted for in addition to the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Veronica Biffi , Klaus Dolag , Hans Boehringer

The kinematics of newly-formed star clusters are interesting both as a probe of the state of the gas clouds from which the stars form, and because they influence planet formation, stellar mass segregation, cluster disruption, and other…

Solar and Stellar Astrophysics · Physics 2014-11-20 S. S. R. Offner , C. E. Hansen , M. R. Krumholz

This paper explores the dynamics of evolving cluster of stars in the presences of exotic matter. The $f(R)$ theory is used to presume exotic terms for evolution scenario. We use structure scalars as evolution parameters to explore dynamics…

General Relativity and Quantum Cosmology · Physics 2021-12-23 Rubab Manzoor , Wasee Shahid

We review recent progress in computational methods for studying the dynamical evolution of large star clusters. After describing some highlights of a new comparison of different models, including N-body models, we mention in detail recent…

Astrophysics · Physics 2007-05-23 D. C. Heggie , M. Giersz , R. Spurzem , K. Takahashi

We use $N$-body simulations to probe the early phases of the dynamical evolution of star-forming regions and focus on mass and velocity distributions of unbound stars. In this parameter space study, we vary the initial virial ratio and…

Solar and Stellar Astrophysics · Physics 2019-06-12 Christina Schoettler , Richard J. Parker , Becky Arnold , Liam P. Grimmett , Jos de Bruijne , Nicholas J. Wright

Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their…

Astrophysics · Physics 2011-02-11 H. Belkus , J. Van Bever , D. Vanbeveren

Observations indicate blue globular clusters have half-light radii systematically larger than those of red globular clusters. In this paper, we test whether the different metallicity-dependent stellar evolution timescales and mass-loss…

Astrophysics of Galaxies · Physics 2012-07-26 Rafael Schulman , Evert Glebbeek , Alison Sills

Most of massive stars form in binary or higher-order systems in clumpy, sub-structured clusters. In the very first phases of their life, these stars are expected to interact with the surrounding environment, before being released to the…

Recent numerical simulations have shown that the unstable disk within the central regime of the primordial gas cloud fragments to form multiple protostars on several scales. Their evolution depends on the mass accretion phenomenon,…

Astrophysics of Galaxies · Physics 2025-01-10 Sukalpa Kundu , Jayanta Dutta

We combine dissipationless N-body simulations and semi-analytic models of galaxy formation to study the spatial and kinematic distributions of cluster galaxies in a LCDM cosmology. We investigate how the star formation rates, colours and…

We use numerical $N$-body experiments to explore the statistics of multiple systems formed in small-$N$ subclusters, i.e. the distributions of orbital semi-major axis, $a$, orbital eccentricity, $e$, mass ratio, $q$, mutual orbital…

Astrophysics of Galaxies · Physics 2025-07-28 Hannah Ambrose , Anthony Whitworth

We study the degree of angular substructure in the stellar position distribution of young members of Galactic star-forming regions, looking for correlations with distance from cluster center, surface number density of stars, and local…

Astrophysics of Galaxies · Physics 2015-06-23 Karl O. Jaehnig , Nicola Da Rio , Jonathan C. Tan