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Related papers: The Formation and Evolution of Small Star Clusters

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Star cluster formation and assembly occurs inside filamentary and turbulent molecular clouds, which imprints both spatial and kinematic substructure on the young cluster. In this paper, we quantify the amount and evolution of this…

Astrophysics of Galaxies · Physics 2025-07-02 Edwin Laverde-Villarreal , Alison Sills , Claude Cournoyer-Cloutier , Veronica Arias Callejas

We present a new approach to understanding star-to-star helium abundance variations within globular clusters. We begin with detailed radiation hydrodynamics simulations of cluster formation within giant molecular clouds, and investigate the…

Astrophysics of Galaxies · Physics 2020-03-18 Alison Sills

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

In young star clusters, the density can be high enough and the velocity dispersion low enough for stars to collide and merge with a significant probability. This has been suggested as a possible way to build up the high-mass portion of the…

Astrophysics · Physics 2008-03-12 Marc Freitag

Most stars form in clumpy and sub-structured clusters. These properties also emerge in hydro-dynamical simulations of star-forming clouds, which provide a way to generate realistic initial conditions for $N-$body runs of young stellar…

Astrophysics of Galaxies · Physics 2023-01-25 Stefano Torniamenti

We present simulations of the formation and evolution of clusters in spiral arms. The simulations follow two different spiral arm regions, and the total gas mass is varied to produce a range of different mass clusters. We find that…

Astrophysics of Galaxies · Physics 2022-09-14 C. L. Dobbs , T. J. R. Bending , A. R. Pettitt , A. S. M. Buckner , M. R. Bate

Nuclear Clusters (NCs) are common stellar systems in the centres of galaxies. Yet, the physical mechanisms involved in their formation are still debated. Using a parsec-resolution hydrodynamical simulation of a dwarf galaxy, we propose an…

Astrophysics of Galaxies · Physics 2016-07-01 Nicolas Guillard , Eric Emsellem , Florent Renaud

We present high resolution interferometric and single dish observations of molecular gas in the Serpens cluster-forming core. Star formation does not appear to be homogeneous throughout the core, but is localised in spatially- and…

Astrophysics · Physics 2009-10-31 L. Testi , A. I. Sargent , L. Olmi , J. S. Onello

High-mass stars are commonly found in stellar clusters promoting the idea that their formation occurs due to the physical processes linked with a young stellar cluster. It has recently been reported that isolated high-mass stars are present…

Astrophysics of Galaxies · Physics 2017-11-29 William E. Lucas , Matus Rybak , Ian A. Bonnell , Mark Gieles

Massive star clusters are often used as tracers of galaxy formation and assembly. In order to do so, we must understand their properties at formation, and how those properties change with time, galactic environment, and galaxy assembly…

Astrophysics of Galaxies · Physics 2023-07-05 Marta Reina-Campos , Alison Sills , Godefroy Bichon

It is likely that all stars are born in clusters, but most clusters are not bound and disperse. None of the many protoclusters in our Galaxy are likely to develop into long-lived bound clusters. The Super Star Clusters (SSCs) seen in…

Astrophysics of Galaxies · Physics 2015-05-20 Sara Beck

Star clusters are formed in molecular clouds which are believed to be the birth places of most stars. From recent observational data, Lada & Lada(2003) estimated that only 4 to 7% of the proto-clusters have survived. Many factors could…

Astrophysics · Physics 2007-05-23 Hui-Chen Chen , Chung-Ming Ko

Observations of the dust and gas around embedded stellar clusters reveal some of the processes involved in their formation and evolution. Large scale mass infall with rates dM/dt=4e-4 solar masses/year is found to be disrupted on small…

Astrophysics · Physics 2015-06-24 Jonathan Williams

Their ubiquity and extreme densities make star clusters probes of prime importance of galaxy evolution. Old globular clusters keep imprints of the physical conditions of their assembly in the early Universe, and younger stellar objects,…

Astrophysics of Galaxies · Physics 2018-05-02 Florent Renaud

Context: Star clusters form within giant molecular clouds that are strongly altered by the feedback action of the massive stars, but the cluster still remains embedded in a dense, highly turbulent medium and interactions with ambient…

Astrophysics of Galaxies · Physics 2022-11-16 Paolo Suin , Steven N. Shore , Václav Pavlík

Most stars do not form in isolation but as part of a cluster comprising anywhere between a few dozen to several million stars with stellar densities ranging from 0.01 to several 10$^5$ \Msun pc$^{-3}$. The majority of these clusters…

Astrophysics of Galaxies · Physics 2015-05-13 S. Pfalzner

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

We study the properties of the diffuse light in galaxy clusters forming in a large hydrodynamical cosmological simulation of the Lambda-CDM cosmology. The simulation includes a model for radiative cooling, star formation in dense cold gas,…

We investigate the evolution of mass segregation in initially sub-structured young embedded star clusters with two different background potentials mimicking the gas. Our clusters are initially in virial or sub-virial global states and have…

Astrophysics of Galaxies · Physics 2017-09-20 R. Dominguez , M. Fellhauer , M. Blana , J. P. Farias , J. Dabringhausen

Clusters are the dense inner regions of a wide-spread hierarchy of young stellar structures. They often reveal a continuation of this hierarchy inside of them, to smaller scales, when they are young, but orbital mixing eventually erases…

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