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相关论文: Dynamical evolution of star clusters in tidal fiel…

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We present the results of a set of N-body simulations following the long-term evolution of the rotational properties of star cluster models evolving in the external tidal field of their host galaxy, after an initial phase of violent…

星系天体物理 · 物理学 2017-07-19 Maria A. Tiongco , Enrico Vesperini , Anna Lisa Varri

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…

星系天体物理 · 物理学 2016-08-31 L. J. Rossi , K. Bekki , J. R. Hurley

[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…

星系天体物理 · 物理学 2014-11-20 Michele Trenti , Enrico Vesperini , Mario Pasquato

We study the rate of escape of stars (``evaporation'') from tidally-limited postcollapse globular clusters having a power-law distribution of stellar masses. We use a multi-mass Fokker-Planck code and assume a steady tidal field.…

天体物理学 · 物理学 2007-05-23 Hyung Mok Lee , Jeremy Goodman

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…

天体物理学 · 物理学 2009-11-06 S. Michael Fall , Qing Zhang

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…

星系天体物理 · 物理学 2016-02-17 R. Priyatikanto , M. B. N. Kouwenhoven , M. I. Arifyanto , H. R. T. Wulandari , S. Siregar

We calculated the broad-band photometric evolution of unresolved star clusters, including the preferential loss of low-mass stars due to mass segregation. The stellar mass function of a cluster evolves due to three effects: (a) the…

天体物理学 · 物理学 2012-01-30 Henny J. G. L. M. Lamers , Peter Anders , Richard de Grijs

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…

星系天体物理 · 物理学 2019-05-21 Hui Li , Oleg Y. Gnedin

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…

天体物理学 · 物理学 2009-11-10 Kang Hwan Lee , Hyung Mok Lee , Hwankyung Sung

The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open…

天体物理学 · 物理学 2015-06-24 Simon F. Portegies Zwart , Stephen L. W. McMillan , Piet Hut , Junichiro Makino

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…

星系天体物理 · 物理学 2015-06-22 Hosein Haghi , Seyed Mohammad Hoseini-Rad , Akram Hasani Zonoozi , Andreas H. W. Kuepper

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…

星系天体物理 · 物理学 2020-03-18 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Peter Berczik , Andreas Just

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…

星系天体物理 · 物理学 2015-05-18 Ataru Tanikawa , Toshiyuki Fukushige

We investigate the influence of the external tidal field of a dark matter halo on the dynamical evolution of star clusters using direct N-body simulations, where we assume that the halo is described by a Navarro, Frenk & White mass profile…

星系天体物理 · 物理学 2009-09-28 A. K. Praagman , J. R. Hurley , C. Power

We present new results on the evolution of the mass function of the globular cluster system of the Milky Way, taking the effect of residual gas expulsion into account. We assume that gas embedded star clusters start with a power-law mass…

天体物理学 · 物理学 2009-11-13 H. Baumgardt , P. Kroupa , G. Parmentier

The evolution of star clusters is determined by several internal and external processes. Here we focus on two dominant internal effects, namely energy exchange between stars through close encounters (two-body relaxation) and mass-loss of…

星系天体物理 · 物理学 2011-06-24 Mark Gieles

We propose an evolutionary model to describe the dynamical evolution of star cluster systems in tidal fields, in which we calibrated the parametric equations defining the model by running direct N-body simulations of star clusters with a…

星系天体物理 · 物理学 2015-06-23 L. J. Rossi , J. R. Hurley

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…

星系天体物理 · 物理学 2019-05-15 Jeremy J. Webb , Marta Reina-Campos , J. M. Diederik Kruijssen

The dynamical evolution of stellar clusters is driven to a large extent by their environment. Several studies so far have considered the effect of tidal fields and their variations, such as, e.g., from giant molecular clouds, galactic…

星系天体物理 · 物理学 2015-05-30 I. Berentzen , E. Athanassoula

Tidally limited star clusters are started on nearly circular orbits in the dark matter sub-halos present at high redshift and evolved with an n-body code augmented with gravitational interactions in the clusters. The tidally removed stars…

星系天体物理 · 物理学 2020-04-29 Raymond G. Carlberg
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