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Related papers: Evolution of Multi-mass Globular Clusters in Galac…

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The evolution of globular clusters driven by two-body relaxation is investigated by means of numerical integration of the two-dimensional Fokker-Planck equation in energy--angular momentum space. The two- dimensional Fokker-Planck equation…

Astrophysics · Physics 2015-06-24 Koji Takahashi

The evolution of tidally truncated globular clusters is investigated by integrating two-dimensional Fokker-Planck equation that allows the development of velocity anisotropy. We start from the isotropic Plummer model with tidal cut off and…

Astrophysics · Physics 2015-06-24 K. Takahashi , H. M. Lee , S. Inagaki

We investigate the evolution of globular clusters using N-body calculations and anisotropic Fokker-Planck (FP) calculations. The models include a mass spectrum, mass loss due to stellar evolution, and the tidal field of the parent galaxy.…

Astrophysics · Physics 2009-10-31 Koji Takahashi , Simon F. Portegies Zwart

We present a series of simple, largely analytical models to compute the effects of disruption on the mass function of star clusters. Our calculations include evaporation by two-body relaxation and gravitational shocks and mass loss by…

Astrophysics · Physics 2009-11-06 S. Michael Fall , Qing Zhang

We present N-body simulations of realistic globular clusters containing initial mass function in the galaxy to study effects of tidal field systematically on the properties of outer parts of globular clusters. Using NBODY6 which takes into…

Astrophysics · Physics 2009-11-10 Kang Hwan Lee , Hyung Mok Lee , Hwankyung Sung

Galactic globular clusters (GCs) are believed to have formed in-situ in the Galaxy as well as in dwarf galaxies later accreted onto the Milky Way. However, to date, there is no unambiguous signature to distinguish accreted GCs. Using…

Astrophysics of Galaxies · Physics 2017-08-16 Paolo Bianchini , Alison Sills , Meghan Miholics

Recent high-precision observations with HST and Gaia enabled new investigations of the internal kinematics of star clusters (SCs) and the dependence of kinematic properties on the stellar mass. These studies raised new questions about the…

Astrophysics of Galaxies · Physics 2024-09-25 Václav Pavlík , Douglas C. Heggie , Anna Lisa Varri , Enrico Vesperini

We explore the long-term evolution of the anisotropy in the velocity space of star clusters starting with different structural and kinematical properties. We show that the evolution of the radial anisotropy strength and its radial variation…

Astrophysics of Galaxies · Physics 2015-12-09 Maria Tiongco , Enrico Vesperini , Anna Lisa Varri

[abridged] We present a unified picture for the evolution of star clusters on the two-body relaxation timescale. We use direct N-body simulations of star clusters in a galactic tidal field starting from different multi-mass King models, up…

Astrophysics of Galaxies · Physics 2014-11-20 Michele Trenti , Enrico Vesperini , Mario Pasquato

The mass evaporation rate of globular clusters evolving in a strong Galactic tidal field is derived through the analysis of large, multi-mass $N$-body simulations. For comparison, we also study the same evaporation rates using MOCCA Monte…

Astrophysics of Galaxies · Physics 2017-07-19 Juan P. Madrid , Nathan W. C. Leigh , Jarrod R. Hurley , Mirek Giersz

We report results of a large set of N-body calculations aimed to study the evolution of multi-mass star clusters in external tidal fields. Our clusters start with the same initial mass-functions, but varying particle numbers, orbital types…

Astrophysics · Physics 2009-11-07 Holger Baumgardt , Junichiro Makino

This paper is the second in a series investigating the evolution of star clusters towards energy equipartition (EEP). Here, we focus on the effects of the external tidal field of the host galaxy, initial anisotropy in the velocity…

Astrophysics of Galaxies · Physics 2021-11-24 Václav Pavlík , Enrico Vesperini

Self-similar evolution is widely used in the theory of collisional stellar dynamics, but its applicability to systems with multiple stellar masses is not well established. We investigate the structural stability of self-similar evolution in…

Astrophysics of Galaxies · Physics 2026-04-01 Václav Pavlík

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 study the dynamical evolution of globular clusters using our new 2-D Monte Carlo code, and we calculate the lifetimes of clusters in the Galactic environment. We include the effects of a mass spectrum, mass loss in the Galactic tidal…

Astrophysics · Physics 2015-06-24 Kriten J. Joshi , Cody P. Nave , Frederic A. Rasio

The globular cluster population in M87 has decreased measurably through dynamical evolution caused by relaxation, binary heating and time-dependent tidal perturbation. For fundamental plane ellipticals in general, cluster populations evolve…

Astrophysics · Physics 2015-06-24 C. Murali , M. D. Weinberg

We investigate the long-term dynamical evolution of star clusters in a steady tidal field produced by its parent galaxy. In this paper, we focus on the influence of mass profile of the parent galaxy. The previous studies were done with the…

Astrophysics of Galaxies · Physics 2015-05-18 Ataru Tanikawa , Toshiyuki Fukushige

We investigate the long-term dynamical evolution of the internal kinematics of multimass rotating star clusters. We have performed a set of N-body simulations to follow the internal evolution of clusters with different degrees of initial…

Astrophysics of Galaxies · Physics 2022-07-06 Alexander R. Livernois , Enrico Vesperini , Anna Lisa Varri , Jongsuk Hong , Maria Tiongco

In nearby clusters early-type galaxies follow isotropic orbits, while the orbits of late-type galaxies are characterized by slightly radial anisotropy. Little is known about the orbits of the different populations of cluster galaxies at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. Biviano , B. M. Poggianti

The evolution of star clusters is largely affected by the tidal field generated by the host galaxy. It is thus in principle expected that under the assumption of an "universal" initial cluster mass function the properties of the evolved…

Astrophysics of Galaxies · Physics 2016-08-31 L. J. Rossi , K. Bekki , J. R. Hurley
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