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Related papers: Globular Cluster Systems in Dwarf Galaxies: Catalo…

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High mass galaxies, with halo masses $M_{200} \ge 10^{10} M_{\odot}$, reveal a remarkable near-linear relation between their globular cluster (GC) system mass and their host galaxy halo mass. Extending this relation to the mass range of…

Astrophysics of Galaxies · Physics 2018-10-03 Duncan A. Forbes , Justin I. Read , Mark Gieles , Michelle L. M. Collins

The relation between the total mass contained in the globular clusters of a galaxy and the mass of its dark matter halo has been found observationally to be nearly linear over five decades of mass. However, the high-mass end of this…

Astrophysics of Galaxies · Physics 2023-07-05 Veronika Dornan , William E. Harris

We compare the empirical relationships between the mass of a galaxy's globular system M_GCS, the gas mass in the hot X-ray atmosphere M_X within a fiducial radius of 5 r_e, the total gravitational mass M_grav within 5 r_e, and lastly the…

Astrophysics of Galaxies · Physics 2020-01-08 Gretchen L. H. Harris , Iurii V. Babyk , William E. Harris , Brian R. McNamara

A strong correlation exists between the total mass of a globular cluster (GC) system and the virial halo mass of the host galaxy. However, the total halo mass in this correlation is a statistical measure conducted on spatial scales that are…

The stellar mass-halo mass relation and the globular cluster (GC) number-halo mass relation are two scaling relations that relate fundamental properties of normal galaxies. Ultra-Diffuse Galaxies (UDGs), some of which, have rich GC systems…

Astrophysics of Galaxies · Physics 2025-07-29 Duncan A. Forbes , Jonah S. Gannon

The sizes of entire systems of globular clusters (GCs) depend on the formation and destruction histories of the GCs themselves, but also on the assembly, merger and accretion history of the dark matter (DM) haloes that they inhabit. Recent…

Astrophysics of Galaxies · Physics 2018-04-18 Michael J. Hudson , Bailey Robison

An increasing body of data reveals a one-to-one linear correlation between galaxy halo mass and the total mass in its globular cluster (GC) population, M_{GCS} ~ M_h^{1.03 \pm 0.03}, valid over 5 orders of magnitude. We explore the nature…

Astrophysics of Galaxies · Physics 2015-06-11 William Harris , Gretchen Harris , Michael Hudson

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…

Linking globular clusters (GCs) to the assembly of their host galaxies is an overarching goal in GC studies. The inference of tight scaling relations between GC system properties and the mass of both the stellar and dark halo components of…

The total mass M_GCS in the globular cluster (GC) system of a galaxy is empirically a near-constant fraction of the total mass M_h = M_bary + M_dark of the galaxy, across a range of 10^5 in galaxy mass. This trend is radically unlike the…

Astrophysics of Galaxies · Physics 2017-02-15 William E. Harris , John P. Blakeslee , Gretchen L. H. Harris

Globular cluster (GC) systems demonstrate tight scaling relations with the properties of their host galaxies. In previous work, we developed an analytic model for GC formation in a cosmological context and showed that it matches nearly all…

Astrophysics of Galaxies · Physics 2019-08-07 Nick Choksi , Oleg Y. Gnedin

All galaxies are thought to reside within large halos of dark matter, whose properties can only be determined from indirect observations. The formation and assembly of galaxies is determined from the interplay between these dark matter…

Astrophysics · Physics 2011-02-11 Lee R. Spitler , Duncan A. Forbes

The fraction of stellar mass contained in globular clusters (GCs), also measured by number as the specific frequency, is a fundamental quantity that reflects both a galaxy's early star formation and its entire merging history. We present…

Globular clusters (GCs) are often used to estimate the dark matter content of galaxies, especially dwarfs, where other kinematic tracers are lacking. These estimates typically assume spherical symmetry and dynamical equilibrium, assumptions…

Astrophysics of Galaxies · Physics 2021-02-17 Jessica E. Doppel , Laura V. Sales , Julio F. Navarro , Mario G. Abadi , Eric W. Peng , Elisa Toloba

The existence of globular clusters (GCs) in a few satellite galaxies, and their absence in majority of dwarf galaxies, present a challenge for models attempting to understand the origins of GCs. In addition to GC presence appearing…

Astrophysics of Galaxies · Physics 2023-05-24 Yingtian Chen , Oleg Y. Gnedin

Globular cluster (GC) systems around galaxies of a vast mass range show remarkably simple scaling relations. The combined mass of all GCs is a constant fraction of the total galaxy mass and the mean metallicity and metallicity dispersion of…

Astrophysics of Galaxies · Physics 2018-08-24 Nick Choksi , Oleg Gnedin , Hui Li

We investigate the globular cluster (GC) system scaling parameters as a function of galaxy mass, i.e. specific frequency (S_N), specific luminosity (S_L), specific mass (S_M), and specific number (^T) of GCs. We sample the entire range in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Iskren Y. Georgiev , Thomas H. Puzia , Paul Goudfrooij , Michael Hilker

We combine a new, comprehensive database for globular cluster populations in all types of galaxies with a new calibration of galaxy halo masses based entirely on weak lensing. Correlating these two sets of data, we find that the mass ratio…

Astrophysics of Galaxies · Physics 2015-06-19 Michael J. Hudson , Gretchen L. Harris , William E. Harris

Globular clusters are compact, gravitationally bound systems of up to a million stars. The GCs in the Milky Way contain some of the oldest stars known, and provide important clues to the early formation and continuing evolution of our…

Astrophysics of Galaxies · Physics 2020-07-22 Michael A. Beasley

We present a catalog of 422 galaxies with published measurements of their globular cluster (GC) populations. Of these, 248 are E galaxies, 93 are S0 galaxies, and 81 are spirals or irregulars. Among various correlations of the total number…

Astrophysics of Galaxies · Physics 2015-06-16 William E. Harris , Gretchen L. H. Harris , Matthew Alessi
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