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We have studied the long-term evolution of star clusters of the solar neighborhood, starting from their birth in gaseous clumps until their complete dissolution in the Galactic tidal field. We have combined the "local-density-driven cluster…

Astrophysics of Galaxies · Physics 2018-08-29 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Andreas Just , Peter Berczik

We use N-body simulations to explore the influence of orbital eccentricity on the dynamical evolution of star clusters. Specifically we compare the mass loss rate, velocity dispersion, relaxation time, and the mass function of star clusters…

Astrophysics of Galaxies · Physics 2015-06-19 Jeremy J. Webb , Nathan Leigh , Alison Sills , William E. Harris , Jarrod R. Hurley

We present the results of an attempt to adapt the distribution function formalism to characterize large-scale structures like clusters of galaxies that form in a cosmological N-body simulation. While galaxy clusters are systems that are not…

Astrophysics · Physics 2015-06-24 Priyamvada Natarajan , Jens Hjorth , Eelco van Kampen

Nuclear Star Clusters (NSCs) are dense stellar systems located at the centers of galaxies. Employing Enzo-Abyss, which integrates hydrodynamics with a direct N-body solver, we introduce a simulation capable of resolving the evolution of…

Astrophysics of Galaxies · Physics 2026-03-20 Yongseok Jo , Minyong Jung , Greg L. Bryan , Seoyoung Kim , Ji-hoon Kim , Ahram Lee

We compare the star formation (SF) activity in cluster galaxies to the field from z=0.3-1.5 using $Herschel$ SPIRE 250$\mu$m imaging. We utilize 274 clusters from the IRAC Shallow Cluster Survey (ISCS) selected as rest-frame near-infrared…

We determine the distribution of stellar surface densities, \Sigma, from models of static and dynamically evolving star clusters with different morphologies, including both radially smooth and substructured clusters. We find that the \Sigma…

Astrophysics of Galaxies · Physics 2015-06-11 Richard J. Parker , Michael R. Meyer

We investigate the evolutionary nexus between the morphology and internal kinematics of the central regions of collisional, rotating, multi-mass stellar systems, with special attention to the spatial characterisation of the process of mass…

Astrophysics of Galaxies · Physics 2021-07-21 Maria Tiongco , Angela Collier , Anna Lisa Varri

The Virgo cluster is one of the closest clusters to us where we can further study the evolution of galaxies, with several infalling substructures and several filaments around it have been reported. Therefore, it makes this cluster and its…

Astrophysics of Galaxies · Physics 2026-03-30 Nelvy Choque-Challapa , Rory Smith , Iván Lacerna , J. Alfonso L. Aguerri , Daniela Palma

We study the evolution of binary stars in globular clusters using a new Monte Carlo approach combining a population synthesis code (StarTrack), and a simple treatment of dynamical interactions in the dense cluster core using a new tool for…

Astrophysics · Physics 2009-11-10 N. Ivanova , K. Belczynski , J. M. Fregeau , F. A. Rasio

We discuss the observations and theory of star cluster formation to argue that clusters form dynamically cool (subvirial) and with substructure. We then perform an ensemble of simulations of cool, clumpy (fractal) clusters and show that…

Astrophysics of Galaxies · Physics 2009-07-22 R. J. Allison , S. P. Goodwin , R. J. Parker , R. de Grijs , S. F. Portegies Zwart , M. B. N. Kouwenhoven

Star cluster formation and assembly occurs inside filamentary and turbulent molecular clouds, which imprints both spatial and kinematic substructure on the young cluster. In this paper, we quantify the amount and evolution of this…

Astrophysics of Galaxies · Physics 2025-07-02 Edwin Laverde-Villarreal , Alison Sills , Claude Cournoyer-Cloutier , Veronica Arias Callejas

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

We study the evolution of the red and blue galaxies from $z=3$ to $z=0$ using the EAGLE simulation. The galaxies in the blue cloud and the red sequence are separated at each redshift using a scheme based on Otsu's method. Our analysis shows…

Astrophysics of Galaxies · Physics 2024-09-17 Apashanka Das , Biswajit Pandey

We study the evolution of globular cluster systems (GCS) in elliptical galaxies and explore the dependence of their main properties on the mass and the size of the host galaxy.The dependence of the evolution of the GCS mass function (GCMF),…

Astrophysics · Physics 2008-11-26 E. Vesperini

An increasing number of photometric observations of multiple stellar populations in Galactic globular clusters is seriously challenging the paradigm of GCs hosting single, simple stellar populations. These multiple populations manifest…

Solar and Stellar Astrophysics · Physics 2009-02-10 Giampaolo Piotto

Stellar mass governs stellar evolution and the distribution of stellar masses plays a central role in the dynamical evolution of stellar clusters. Using high-precision astrometry and photometry from Gaia DR3, we investigate mass segregation…

Astrophysics of Galaxies · Physics 2026-05-27 Jeison Alfonso , Alejandro Garcia-Varela , Katherine Vieira

Using 3.6$\mu$m images of 97 early-type galaxies, we develop and verify methodology to measure globular cluster populations from the S$^4$G survey images. We find that 1) the ratio, T$_{\rm N}$, of the number of clusters, N$_{\rm CL}$, to…

An increasing number of photometric observations of multiple stellar populations in Galactic globular clusters is seriously challenging the paradigm of GCs hosting single, simple stellar populations. These multiple populations manifest…

Astrophysics · Physics 2008-01-22 Giampaolo Piotto

Inconsistencies regarding the nature of globular cluster multiple population radial distributions is a matter for concern given their role in testing or validating cluster dynamical evolution modeling. In this study, we present a…

Astrophysics of Galaxies · Physics 2021-05-12 Willem B. Hoogendam , Jason P. Smolinski

The current generation of galaxy simulations can resolve individual giant molecular clouds, the progenitors of dense star clusters. But the evolutionary fate of these young massive clusters, and whether they can become the old globular…

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