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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

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

This paper addresses the questions of what we have learned about how and when dense star clusters form, and what studies of star clusters have revealed about galaxy formation and evolution. One important observation is that globular…

Astrophysics · Physics 2007-05-23 Stephen E. Zepf

I assess the similarities and differences between the star-formation modes in quiescent spiral galaxies versus those in violent starburst regions, including galactic nuclei. As opposed to the quiescent star-formation mode, current empirical…

Astrophysics · Physics 2009-11-11 Richard de Grijs

The formation history of globular clusters (GCs) at redshift $z > 4$ remains an unsolved problem. In this work, we use the cosmological, $N$-body hydrodynamical ``zoom-in'' simulation GigaEris to study the properties and formation of…

Astrophysics of Galaxies · Physics 2023-04-05 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Tomas Tamfal , Thomas R. Quinn , Piero Madau

One of the conundrums in extragalactic astronomy is the discrepancy in observed metallicity distribution functions (MDFs) between the two prime stellar components of early-type galaxies-globular clusters (GCs) and halo field stars. This is…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Suk-Jin Yoon , Sang-Yoon Lee , John P. Blakeslee , Eric W. Peng , Sangmo T. Sohn , Jaeil Cho , Hak-Sub Kim , Chul Chung , Sooyoung Kim , Young-Wook Lee

A comprehensive statistical analysis of the relationship between the chemical and spatially kinematic parameters of the globular clusters of the Galaxy has been performed. The data of the author's compilation catalog contain astrophysical…

Astrophysics of Galaxies · Physics 2020-02-26 V. A. Marsakov , V. V. Koval' , M. L. Gozha

The clustered nature of star formation should produce a high degree of structure in the combined phase and chemical space in the Galactic disk. To date, observed structure of this kind has been mostly limited to bound clusters and moving…

Astrophysics of Galaxies · Physics 2019-11-06 Harshil Kamdar , Charlie Conroy , Yuan-Sen Ting , Ana Bonaca , Benjamin Johnson , Phillip Cargile

The basic ingredients of models for the internal dynamics of globular clusters are reviewed, with an emphasis on the description of equilibrium configurations. The development of progressive complexity in the models is traced, concentrating…

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

We introduce the MOdelling Star cluster population Assembly In Cosmological Simulations within EAGLE (E-MOSAICS) project. E-MOSAICS incorporates models describing the formation, evolution and disruption of star clusters into the EAGLE…

Astrophysics of Galaxies · Physics 2018-02-28 Joel Pfeffer , J. M. Diederik Kruijssen , Robert A. Crain , Nate Bastian

The photometric properties that we could observe for Extra-Galactic Globular Clusters (EGGCs) are the integrated light of the system and for nearby EGGCs it also is possible to measure both half-light radii and the color spatial…

Astrophysics of Galaxies · Physics 2020-03-18 Agostino Leveque , Mirosław Giersz

The evolution of molecular clouds in galactic centres is thought to differ from that in galactic discs due to a significant influence of the external gravitational potential. We present a set of numerical simulations of molecular clouds…

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

Globular cluster systems provide valuable fossil records of the formation history of their parent galaxies. This review specifically concentrates on using color distributions of the globular cluster systems of elliptical galaxies to…

Astrophysics · Physics 2007-05-23 Stephen E. Zepf

In this review, we describe our current understanding of cluster formation: from the general picture of collapse from initial density fluctuations in an expanding Universe to detailed simulations of cluster formation including the effects…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Andrey Kravtsov , Stefano Borgani

The bifurcated age-metallicity relation of globular clusters (GCs) in the Milky Way (MW) shows that GCs are either originated in situ or accreted into the Galaxy from former satellites of the MW. The effects of the Galactic tidal field can…

Astrophysics of Galaxies · Physics 2026-05-27 Eugenio Carretta

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

Dense star clusters are spectacular self-gravitating stellar systems in our Galaxy and across the Universe - in many respects. They populate disks and spheroids of galaxies as well as almost every galactic center. In massive elliptical…

Instrumentation and Methods for Astrophysics · Physics 2023-05-22 Rainer Spurzem , Albrecht Kamlah

To investigate the origin of elevated globular cluster abundances observed around Ultra-Diffuse Galaxies (UDGs), we simulate globular cluster populations hosted by UDGs formed through tidal heating. Specifically, globular cluster (GC)…

Astrophysics of Galaxies · Physics 2021-01-11 Timothy Carleton , Yicheng Guo , Ferah Munshi , Michael Tremmel , Anna Wright

We discuss the diffuse emission of gamma rays and neutrinos from galaxy clusters in the viable models for structure formation in the universe. We use a self-consistent picture for cluster formation and evolution starting from a primordial…

Astrophysics · Physics 2009-10-30 S. Colafrancesco , P. Blasi
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