English
Related papers

Related papers: The Evolution of Globular Clusters in the Galaxy

200 papers

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 globular clusters with mass spectra under the influence of the steady Galactic tidal field, including the effects of velocity anisotropy. Similar to single-mass models, velocity anisotropy develops as the cluster…

Astrophysics · Physics 2009-10-31 K. Takahashi , H. M. Lee

We consider the use of N-body simulations for studying the evolution of rich star clusters (i.e. globular clusters). The dynamical processes included in this study are restricted to gravitational (point-mass) interactions, the steady tidal…

Astrophysics · Physics 2016-08-30 S. J. Aarseth , D. C. Heggie

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

Using direct N-body simulations which include both the evolution of single stars and the tidal field of the parent galaxy, we study the dynamical evolution of globular clusters and rich open clusters. We compare our results with other…

Astrophysics · Physics 2007-05-23 Simon Portegies Zwart , Piet Hut , Junichiro Makino , Stephen McMillan

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

To understand the effects of the initial rotation on the evolution of the tidally limited clusters with mass spectrum, we have performed N-body simulations of the clusters with different initial rotations and compared the results with those…

Solar and Stellar Astrophysics · Physics 2013-01-30 Jongsuk Hong , Eunhyeuk Kim , Hyung Mok Lee , Rainer Spurzem

We present new models of the evolution and dissolution of star clusters evolving under the combined influence of internal relaxation and external tidal fields, using the anisotropic gaseous model based on the Fokker-Planck approximation,…

Astrophysics · Physics 2009-11-10 R. Spurzem , M. Giersz , K. Takahashi , A. Ernst

We use direct N-body simulations to investigate the evolution of star clusters with large size-scales with the particular goal of understanding the so-called extended clusters observed in various Local Group galaxies, including M31 and…

Astrophysics of Galaxies · Physics 2015-05-19 Jarrod R. Hurley , A. Dougal Mackey

This paper is concerned with collisionless aspects of the early evolution of model star clusters. The effects of mass loss through stellar evolution and of a steady tidal field are modelled using $N$-body simulations. Our results (which…

Astrophysics · Physics 2015-06-24 Toshiyuki Fukushige , Douglas C. Heggie

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

[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

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 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

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

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

The evolution of spherical single-mass star clusters driven by two-body relaxation was followed beyond core collapse by numerically solving the orbit-averaged Fokker-Planck equation in energy--angular momentum space. The heating effect by…

Astrophysics · Physics 2015-06-24 Koji Takahashi

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

In this paper we show the results of a large set of N-body simulations modelling the evolution of globular clusters driven by relaxation,stellar evolution,disk shocking and including the effects of the tidal field of the Galaxy. We…

Astrophysics · Physics 2015-06-24 E. Vesperini , D. C. Heggie

This paper presents a new scheme to treat escaping stars in the orbit-averaged Fokker-Planck models of globular star clusters in a galactic tidal field. The existence of a large number of potential escapers, which have energies above the…

Astrophysics of Galaxies · Physics 2015-06-03 Koji Takahashi , Holger Baumgardt
‹ Prev 1 2 3 10 Next ›