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The currently most popular models for the dynamical evolution of star clusters predict that the power-law Cluster Luminosity Functions (CLFs) of young star cluster systems will be transformed rapidly into the universal Gaussian CLFs of old…

Astrophysics · Physics 2009-11-07 Richard de Grijs , Nate Bastian , Henny J. G. L. M. Lamers

We have investigated the formation of globular cluster (GC) systems in the fiducial semi-analytic galaxy formation model of Cole et al. We assume that GCs are formed at high-redshift (z > 5) in proto-galactic fragments, and during the…

Astrophysics · Physics 2009-11-07 M. A. Beasley , C. M. Baugh , Duncan A. Forbes , R. M. Sharples , C. S. Frenk

Young massive clusters (YMCs) are the most compact, high-mass stellar systems still forming at the present day. The precursor clouds to such systems are, however, rare due to their large initial gas mass reservoirs and rapid dispersal…

We present a comprehensive analysis of globular cluster (GC) formation and evolution across the $34^3$ Mpc$^3$ volume of the E-MOSAICS galaxy formation simulations. Defining GCs as surviving, high-mass ($>10^5$ M$_\odot$) clusters, we…

We investigate the formation of infant globular cluster (GC) candidates in high-resolution cosmological simulations from the First Billion Years (FiBY) project. By analysing the evolution of the systems in the energy and angular momentum…

Astrophysics of Galaxies · Physics 2022-12-07 Frederika Phipps , Sadegh Khochfar , Anna Lisa Varri , Claudio Dalla Vecchia

We investigate the long-term dynamical evolution of two distinct stellar populations of low-mass stars in globular clusters in order to study whether the energy equipartition process can explain the high number of stars harbouring abundance…

Astrophysics · Physics 2009-11-13 T. Decressin , H. Baumgardt , P. Kroupa

We investigate the properties of globular clusters in a galaxy cluster, using the particle tagging method with a semi-analytical approach in a cosmological context. We assume globular clusters form from dark matter halo mergers and their…

Astrophysics of Galaxies · Physics 2022-12-21 So-Myoung Park , Jihye Shin , Rory Smith , Kyungwon Chun

The distinction between globular clusters and dwarf galaxies has been progressively blurred by the recent discoveries of several extended star clusters, with size (20-30 pc) and luminosity (-6 < Mv < -2) comparable to the one of faint dwarf…

Astrophysics of Galaxies · Physics 2015-06-23 Paolo Bianchini , Florent Renaud , Mark Gieles , Anna Lisa Varri

In this paper, we discuss the origin of the observed correlation between cluster concentration c and present-day mass function (PDMF) slope {\alpha} reported by De Marchi, Paresce & Pulone. This relation can either be reproduced from…

Solar and Stellar Astrophysics · Physics 2015-06-17 Nathan W. C. Leigh , Mirek Giersz , Jeremy J. Webb , Arkadiusz Hypki , Guido de Marchi , Pavel Kroupa , Alison Sills

A review of gravitational and hydrodynamical processes during formation of clusters and evolution of galaxies is given. Early, at the advent of N-body computer simulations, the importance of tidal fields in galaxy encounters has been…

Astrophysics · Physics 2015-06-24 Jan Palous

The properties of old globular cluster systems (GCSs) in galaxy halos offer unique insight into the physical processes that conspire to form any generic star cluster, at any epoch. Presented here is a summary of the information obtained…

Astrophysics · Physics 2007-05-23 Dean E. McLaughlin

Two generations of stars, G1 and G2, typically populate Galactic globular clusters (GCs). The origin of G2 stars is unclear. We uncover two empirical dependencies between GC characteristics, which can be explained by the formation of G2…

Astrophysics of Galaxies · Physics 2022-09-23 Valery Kravtsov , Sami Dib , Francisco A. Calderon , Jose A. Belinchon

We report on the extent of the effects of the Milky Way's gravitational field in shaping the structural parameters and internal dynamics of its globular cluster population. We make use of a homogeneous, up-to-date data set with kinematics,…

Astrophysics of Galaxies · Physics 2019-09-25 Andrés E. Piatti , Jeremy Webb , Raymond Carlberg

N-body simulations are used to model the early evolution of globular clusters. These simulations include residual gas which was not turned into stars which is expelled from the globular cluster by the actions of massive stars. The results…

Astrophysics · Physics 2015-06-24 Simon P Goodwin

Galactic globular clusters are ancient building blocks of our Galaxy. They represent a very interesting family of stellar systems in which some fundamental dynamical processes have been taking place for more than 10 Gyr, but on time scales…

Astrophysics · Physics 2018-03-28 G. Meylan

We present a new analysis of the properties of the young massive star clusters, which demonstrates that these objects are plausible progenitors of old globular clusters (GCs). The method is based on the tight relationship for old GCs…

Astrophysics · Physics 2009-11-11 R. de Grijs , M. I. Wilkinson , C. N. Tadhunter

Globular clusters (GCs) are powerful tracers of galaxy assembly, frequently used to identify accreted substructure and reconstruct hierarchical merger histories. With advances in GC formation models and cosmological simulations, we can now…

Astrophysics of Galaxies · Physics 2026-04-10 Finn A. Pal , Sarah L. Martell , Elizabeth J. Iles

Various galaxy properties are not continuous over a large range in mass, but rather reveal a remarkable transition or `bimodality' at a stellar mass of 3 x 10^{10} Mo. These properties include colors, stellar populations, Xray emission and…

Astrophysics · Physics 2009-11-13 Duncan A. Forbes

Molecular clouds at the Galactic center (GC) have environments considerably different from their disk counterparts. The GC may therefore provide important clues about how the environment affects star formation. Interestingly, while the…

High Energy Astrophysical Phenomena · Physics 2015-05-13 Marco Fatuzzo , Fulvio Melia

We investigate the spatial, kinematic and chemical properties of globular cluster systems formed in merging and interacting galaxies using N-body/SPH simulations. Although we can not resolve individual clusters in our simulation, we assume…

Astrophysics · Physics 2009-11-07 K. Bekki , Duncan A. Forbes , M. A. Beasley , W. J. Couch
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