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We investigate the dissolution process of young embedded star clusters with different primordial mass segregation levels using fractal distributions by means of N-body simulations. We combine several star clusters in virial and subvirial…

Astrophysics of Galaxies · Physics 2021-09-29 R. Domínguez , J. P. Farias , M. Fellhauer , Ralf S. Klessen

We investigate the stellar mass loss of gas rich galaxies falling into clusters due to the change in the gravitational potential caused by the ram pressure stripping of their gas. We model the satellites with exponential stellar and gas…

Astrophysics of Galaxies · Physics 2017-12-06 Mohammadtaher Safarzadeh , Evan Scannapieco

A significant fraction of clusters of galaxies are observed to have substructure, which implies that merging between clusters and subclusters is a rather common physical process of cluster formation. It still remains unclear how cluster…

Astrophysics · Physics 2016-08-30 Kenji Bekki

Recent high-resolution observations with the Hubble Space Telescope (HST) reveal that young star clusters of extraordinary luminosity and compactness ("super star clusters") are commonly found in starburst systems. Cluster formation appears…

Astrophysics · Physics 2007-05-23 Luis C. Ho

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

Multiple stellar populations are observed in almost all globular-clusters, but the origin of this phenomenon is still debated. We investigate the role cool supergiants may have played. To do this, we combine two investigative methods:…

Astrophysics of Galaxies · Physics 2019-01-29 Dorottya Szécsi , Richard Wünsch

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

Some of the most massive globular clusters of our Milky Way, such as for example omega-Centauri, show a mixture of stellar populations spanning a few Gyr in age and 1.5 dex in metallicities. In contrast, standard formation scenarios predict…

Astrophysics · Physics 2009-11-11 Mike Fellhauer , Pavel Kroupa , Wyn Evans

Observations of globular clusters show that they have universal lognormal mass functions with a characteristic peak at $\sim 2\times 10^{5}\, {\rm{M_{\odot}}}$, but the origin of this peaked distribution is highly debated. Here we…

Astrophysics of Galaxies · Physics 2017-08-02 Moupiya Maji , Qirong Zhu , Yuexing Li , Jane Charlton , Lars Hernquist , Alexander Knebe

We present the results of a set of N-body simulations following the long-term evolution of the rotational properties of star cluster models evolving in the external tidal field of their host galaxy, after an initial phase of violent…

Astrophysics of Galaxies · Physics 2017-07-19 Maria A. Tiongco , Enrico Vesperini , Anna Lisa Varri

We investigate the formation of both clustered and distributed populations of young stars in a single molecular cloud. We present a numerical simulation of a 10,000 solar mass elongated, turbulent, molecular cloud and the formation of over…

Astrophysics of Galaxies · Physics 2015-05-19 Ian A. Bonnell , Rowan J. Smith , Paul C. Clark , Matthew R. Bate

We investigate the possibility that multiple populations in globular clusters arise as a natural by-product of massive star-cluster formation. We use 3D radiative hydrodynamics simulations for the formation of young massive clusters to…

Astrophysics of Galaxies · Physics 2019-04-10 Corey S. Howard , Ralph E. Pudritz , Alison Sills , William E. Harris

Most stars are born in the crowded environments of gradually forming star clusters. Dynamical interactions between close-passing stars and the evolving UV radiation fields from proximate massive stars are expected to sculpt the…

Astrophysics of Galaxies · Physics 2024-09-20 Aayush Gautam , Juan P. Farias , Jonathan C. Tan

Globular clusters were thought to be simple stellar populations, but recent photometric and spectroscopic evidence suggests that the clusters' early formation history was more complicated. In particular, clusters show star-to-star abundance…

Solar and Stellar Astrophysics · Physics 2015-05-18 Alison Sills , Evert Glebbeek

The formation of stellar clusters dictates the pace at which galaxies evolve, and solving the question of their formation will undoubtedly lead to a better understanding of the Universe as a whole. While it is well known that star clusters…

Astrophysics of Galaxies · Physics 2023-08-11 Nicolas Peretto , Andrew J. Rigby , Fabien Louvet , Gary A. Fuller , Alessio Traficante , Mathilde Gaudel

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

The discovery of young globular clusters in merging galaxies and other environments provides an opportunity to study directly the process of globular cluster formation. Empirically it appears that globular cluster formation occurs…

Astrophysics · Physics 2009-11-07 Keith M. Ashman

Globular Cluster (GC) formation seems to be a widespread mode of star formation in extreme starbursts triggered by strong interactions and mergers of massive gas-rich galaxies. We use our detailed chemically consistent evolutionary…

Astrophysics · Physics 2015-06-10 Uta Fritze -- v. Alvensleben

Star clusters are evolving n-body systems. We discuss the early dynamics of star clusters, the process of primordial mass segregation and clustering observed in certain young clusters. We discuss how the dynamics coupled with stellar…

Solar and Stellar Astrophysics · Physics 2018-10-15 Priya Shah

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