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The semi-analytic theory of tidal shocks proves to be a powerful tool to study tidal interactions of star clusters and satellite galaxies with their massive hosts. New models of the globular cluster evolution employ a combination of…

Astrophysics · Physics 2007-05-23 Oleg Y. Gnedin , Jeremiah P. Ostriker

In previous papers of this series, we developed a new algorithm for modeling the formation of star clusters in galaxy formation simulations. Here we investigate how dissolution of bound star clusters affects the shape of the cluster mass…

Astrophysics of Galaxies · Physics 2019-05-21 Hui Li , Oleg Y. Gnedin

[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

Understanding the evolution of stellar clusters in an evolving tidal field is critical for studying the disruption of stellar clusters in a cosmological context. We systematically characterise the response of stellar clusters to tidal…

Astrophysics of Galaxies · Physics 2019-05-15 Jeremy J. Webb , Marta Reina-Campos , J. M. Diederik Kruijssen

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

Interacting galaxies favor the formation of star clusters but are also suspected to affect their evolution through an intense and rapidly varying tidal field. Treating this complex behaviour remains out-of-reach of (semi-)analytical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Florent Renaud , Mark Gieles

Dynamical friction and tidal disruption are effective mechanisms of evolution of globular cluster systems, especially in non-axysimmetric galaxies with a central compact nucleus. With a semi-analytical approach based on the knowledge of the…

Astrophysics · Physics 2016-08-30 R. Capuzzo-Dolcetta , A. Tesseri

Recent N-body simulations have shown that there is a serious discrepancy between the results of the N-body simulations and the results of Fokker-Planck simulations for the evolution of globular and rich open clusters under the influence of…

Astrophysics · Physics 2009-10-30 Koji Takahashi , Simon Portegies Zwart

We study the evolution of star clusters in the Galactic tidal field starting from their birth in molecular clumps. Our model clusters form according to the local-density-driven cluster formation model in which the stellar density profile is…

Astrophysics of Galaxies · Physics 2020-03-18 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Peter Berczik , Andreas Just

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

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

Fragmentation and fission of giant molecular clouds occasionally results in a pair of gravitationally bound star clusters that orbit their mutual centre of mass for some time, under the influence of internal and external perturbations. We…

Astrophysics of Galaxies · Physics 2016-02-17 R. Priyatikanto , M. B. N. Kouwenhoven , M. I. Arifyanto , H. R. T. Wulandari , S. Siregar

A revision of Stod\{'o}{\l}kiewicz's Monte Carlo code is used to simulate evolution of large star clusters. A survey of the evolution of N-body systems influenced by the tidal field of a parent galaxy and by stellar evolution is presented.…

Astrophysics · Physics 2015-06-24 Mirek Giersz

[abridged] We extend our analysis of the dynamical evolution of simple star cluster models, in order to provide comparison standards that will aid in interpreting the results of more complex realistic simulations. We augment our previous…

Astrophysics · Physics 2008-11-26 M. Trenti , D. C. Heggie , P. Hut

We consider both observational and theoretical issues related to dynamical mass loss from the old globular star clusters of the Galaxy. On the observational side the evidence includes tidal tails and extratidal extensions, kinematic…

Astrophysics · Physics 2007-05-23 Douglas C. Heggie

Many Local Group dwarf spheroidal galaxies are found in the Galactic halo along great circles in the sky. Some of these stellar systems are thought to be the fragments of larger parent galaxies which have once intruded into and were torn…

Astrophysics · Physics 2008-11-26 M. Fellhauer , D. N. C. Lin

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 use direct $N$-body calculations to investigate the impact of primordial mass segregation on the size scale and mass-loss rate of star clusters in a galactic tidal field. We run a set of simulations of clusters with varying degrees of…

Astrophysics of Galaxies · Physics 2015-06-22 Hosein Haghi , Seyed Mohammad Hoseini-Rad , Akram Hasani Zonoozi , Andreas H. W. Kuepper

Most of the dynamical mass loss from star clusters is thought to be caused by the time-variability of the tidal field (``tidal shocks''). Systematic studies of tidal shocks have been hampered by the fact that each tidal history is unique,…

Astrophysics of Galaxies · Physics 2024-10-23 Jeremy J. Webb , Marta Reina-Campos , J. M. Diederik Kruijssen

We investigated the dynamical evolution of clusters of galaxies in virial equilibrium using Fokker-Planck models and self-consistent N-body models. In particular, we focused on the growth of a common halo, which is a cluster-wide halo…

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