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Related papers: The Effect of the Galactic Spheroid on Globular Cl…

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Massive globular clusters lose stars via internal and external processes. Internal processes include mainly two-body relaxation, while external processes include interactions with the Galactic tidal field. We perform a suite of N-body…

Astrophysics of Galaxies · Physics 2021-03-26 Yohai Meiron , Jeremy J. Webb , Jongsuk Hong , Peter Berczik , Rainer Spurzem , Raymond G. Carlberg

We investigate the early evolution of two distinct populations of low-mass stars in globular clusters under the influence of primordial gas expulsion driven by supernovae to study if this process can increase the fraction of second…

Astrophysics of Galaxies · Physics 2015-05-18 T. Decressin , H. Baumgardt , C. Charbonnel , P. Kroupa

This paper reviews some of the observational properties of globular cluster systems, with a particular focus on those that constrain and inform models of the formation and dynamical evolution of globular cluster systems. I first discuss the…

Astrophysics · Physics 2008-02-18 Stephen E. Zepf

Late-type galaxies falling into a cluster would evolve being influenced by the interactions with both the cluster and the nearby cluster member galaxies. Most numerical studies, however, tend to focus on the effects of the former with…

Astrophysics of Galaxies · Physics 2018-04-18 Jeong-Sun Hwang , Changbom Park , Arunima Banerjee , Ho Seong Hwang

The rate of tidal circularization is predicted to be faster for relatively cool stars with convective outer layers, compared to hotter stars with radiative outer layers. Observing this effect is challenging, because it requires large and…

Solar and Stellar Astrophysics · Physics 2016-06-15 Vincent Van Eylen , Joshua N. Winn , Simon Albrecht

We investigated the evolution of clusters of galaxies using self-consistent $N$-body simulations in which each galaxy was modeled by many particles. We carried out simulations for about 20 cases using different initial conditions. In all…

Astrophysics · Physics 2015-06-24 T. Sensui , Y. Funato , J. Makino

The radii of young (<100 Myr) star clusters correlate only weakly with their masses. This shallow relation has been used to argue that impulsive tidal perturbations, or `shocks', by passing giant molecular clouds (GMCs) preferentially…

Astrophysics of Galaxies · Physics 2016-09-19 Mark Gieles , Florent Renaud

We revisit the hypothesis that dense galactic nuclei are formed from inspiraling globular clusters. Recent advances in understanding of the continuous formation of globular clusters over cosmic time and the concurrent evolution of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Oleg Y. Gnedin , Jeremiah P. Ostriker , Scott Tremaine

The dynamical evolution of the globular cluster systems in galaxies is predicted, based on the standard dynamical theory normalized to the example of the Milky Way. The major processes varying with the galactocentric distance are the tidal…

Astrophysics · Physics 2009-10-28 Jeremiah P. Ostriker , Oleg Y. Gnedin

Star clusters - open and globulars - experience dynamical evolution on time scales shorter than their age. Consequently, open and globular clusters provide us with unique dynamical laboratories for learning about two-body relaxation, mass…

Astrophysics · Physics 2007-05-23 Georges Meylan

We postulate that most stars are born in aggregates of binary systems which are dynamically equivalent to the `dominant mode cluster'. The initial binary orbits are consitent with pre-main sequence data. Stellar masses are paired at random…

Astrophysics · Physics 2015-06-24 Pavel Kroupa

Galaxy morphologies in clusters have undergone a remarkable transition over the past several billion years. Distant clusters at $z \sim 0.4$ are filled with small spiral galaxies, many of which are disturbed and show evidence of multiple…

Astrophysics · Physics 2009-10-30 Ben Moore , George Lake , Neal Katz

We present a cosmological zoom-in simulation of a Milky Way-like galaxy used to explore the formation and evolution of star clusters. We investigate in particular the origin of the bimodality observed in the colour and metallicity of…

Astrophysics of Galaxies · Physics 2016-12-28 Florent Renaud , Oscar Agertz , Mark Gieles

Disk galaxies evolve over time through processes that may rearrange both the radial mass profile and the metallicity distribution within the disk. This review of such slow changes is largely, though not entirely, restricted to…

Astrophysics of Galaxies · Physics 2015-06-17 J. A. Sellwood

The stellar-dynamical evolution of bound star clusters during the first few Myr is dominated by binary-binary and binary-star interactions, the rapid sinking of the most massive stars to the centre of the clusters and mass loss from…

Astrophysics · Physics 2007-05-23 Pavel Kroupa

Tidal structures around globular clusters provide valuable insights into cluster evolution and the hierarchical assembly of the Milky Way. Using wide-field imaging data from the DESI Legacy Survey combined with a color-magnitude…

Astrophysics of Galaxies · Physics 2026-02-24 Shouzhi Wang , Jundan Nie , Biwei Jiang , Hao Tian , Chao Liu , Ying-Hua Zhang

We present an end-to-end description of the formation process of globular clusters (GCs) which combines a treatment for their formation and dynamical evolution within galaxy haloes with a state-of-the-art semi-analytic simulation of galaxy…

Large-field multi-color images of 20 galactic globular clusters are used to investigate the presence of tidal tails around these stellar systems. Field and cluster stars are sorted with the help of color-magnitude diagrams, and star-count…

Astrophysics · Physics 2007-05-23 S. Leon , G. Meylan , F. Combes

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

We consider a model of galaxy clusters in which the hot gas is in hydrostatic equilibrium and maintains energy balance between radiative cooling and heating by thermal conduction. We analyze the thermal stability of the gas using a…

Astrophysics · Physics 2009-11-07 Woong-Tae Kim , Ramesh Narayan