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相关论文: Monte Carlo Simulations of Star Clusters - V. The …

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We describe Monte Carlo models for the dynamical evolution of the nearby globular cluster NGC 6397. The code includes treatments of two-body relaxation, most kinds of three- and four-body interactions involving primordial binaries and those…

星系天体物理 · 物理学 2009-11-13 M. Giersz , D. C. Heggie

We outline the steps needed in order to incorporate the evolution of single and binary stars into a particular Monte Carlo code for the dynamical evolution of a star cluster. We calibrate the results against N-body simulations, and present…

天体物理学 · 物理学 2008-01-25 Mirek Giersz , Douglas C. Heggie , Jarrod R. Hurley

We study the dynamical evolution of globular clusters using our 2D Monte Carlo code with the inclusion of primordial binary interactions for equal-mass stars. We use approximate analytical cross sections for energy generation from…

天体物理学 · 物理学 2009-11-07 J. M. Fregeau , M. A. Gurkan , K. J. Joshi , F. A. Rasio

We study the dynamical evolution of globular clusters containing populations of primordial binaries, using our newly updated Monte Carlo cluster evolution code with the inclusion of direct integration of binary scattering interactions. We…

天体物理学 · 物理学 2015-06-24 John M. Fregeau , Frederic A. Rasio

This paper describes an N-body model for the dynamical evolution of the nearby globular cluster M4. The initial conditions, with N = 484710 particles, were generated from a published study of this cluster with a Monte Carlo code. With the…

星系天体物理 · 物理学 2015-06-22 Douglas C. Heggie

We study the dynamical evolution of globular clusters containing primordial binaries, including full single and binary stellar evolution using our Monte Carlo cluster evolution code updated with an adaptation of the single and binary…

星系天体物理 · 物理学 2014-11-20 Sourav Chatterjee , John M. Fregeau , Stefan Umbreit , Frederic A. Rasio

We study the dynamical evolution of globular clusters using our H\'enon-type Monte Carlo code for stellar dynamics including all relevant physics such as two-body relaxation, single and binary stellar evolution, Galactic tidal stripping,…

星系天体物理 · 物理学 2015-06-05 Sourav Chatterjee , Stefan Umbreit , John M. Fregeau , Frederic A. Rasio

Astronomers have constructed models of globular clusters for over 100 years. These models mainly fall into two categories: (i) static models, such as King's model and its variants, and (ii) evolutionary models. Most attention has been given…

天体物理学 · 物理学 2009-11-13 D. C. Heggie , M. Giersz

We have developed a new parallel supercomputer code based on Henon's Monte Carlo method for simulating the dynamical evolution of globular clusters. This new code allows us to calculate the evolution of a cluster containing a realistic…

天体物理学 · 物理学 2007-05-23 F. A. Rasio

We describe Monte Carlo models for the dynamical evolution of the massive globular cluster 47 Tuc (NGC 104). The code includes treatments of two-body relaxation, most kinds of three- and four-body interactions involving primordial binaries…

星系天体物理 · 物理学 2015-05-19 Mirek Giersz , Douglas C. Heggie

We present the results of Monte Carlo simulations for the dynamical evolution of star clusters containing two stellar populations with individual masses m1 and m2 > m1, and total masses M1 and M2 < M1. We use both King and Plummer model…

天体物理学 · 物理学 2009-10-31 W. A. Watters , K. J. Joshi , F. A. Rasio

We summarize the results of recent theoretical work on the dynamical evolution of globular clusters containing primordial binaries. Even a very small initial binary fraction (e.g., 10%) can play a key role in supporting a cluster against…

天体物理学 · 物理学 2015-05-20 Frederic A. Rasio , John M. Fregeau , Kriten J. Joshi

We present a new parallel supercomputer implementation of the Monte-Carlo method for simulating the dynamical evolution of globular star clusters. Our method is based on a modified version of Henon's Monte-Carlo algorithm for solving the…

天体物理学 · 物理学 2009-10-31 Kriten Joshi , Frederic Rasio , Simon Portegies Zwart

The new approach outlined in Paper I (Spurzem \& Giersz 1996) to follow the individual formation and evolution of binaries in an evolving, equal point-mass star cluster is extended for the self-consistent treatment of relaxation and close…

天体物理学 · 物理学 2009-10-31 M. Giersz , R. Spurzem

Observations and theoretical work suggest that globular clusters may be born with initially very large binary fractions. We present first results from our newly modified Monte-Carlo cluster evolution code, which treats binary interactions…

天体物理学 · 物理学 2007-05-23 John M. Fregeau , M. Atakan Gurkan , Frederic A. Rasio

We investigate the dynamical formation and evolution of binaries containing neutron stars in dense globular clusters. Our numerical simulations combine a simple Monte Carlo prescription for stellar dynamics, a sophisticated binary…

天体物理学 · 物理学 2007-05-23 Natalia Ivanova , John M. Fregeau , Frederic A. Rasio

We present the result of a survey of Monte Carlo simulations of globular clusters hosting two generations of stars including a large (f_b=50%) fraction of primordial binaries in both populations. The dynamical evolution of the two stellar…

太阳与恒星天体物理 · 物理学 2022-03-14 A. Sollima , R. Gratton , S. Lucatello , E. Carretta

We will discuss the evolution of star clusters with an large initial binary fraction, up to 95%. The initial binary population is chosen to follow the invariant orbital-parameter distributions suggested by Kroupa (1995). The Monte Carlo…

星系天体物理 · 物理学 2014-12-01 Mirek Giersz , Nathan Leigh , Michael Marks , Arkadiusz Hypki , Abbas Askar

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.…

天体物理学 · 物理学 2015-06-24 Mirek Giersz

We have developed a new simulation code aimed at studying the stellar dynamics of a galactic central star cluster surrounding a massive black hole. In order to include all the relevant physical ingredients (2-body relaxation, stellar mass…

天体物理学 · 物理学 2009-11-06 Marc Freitag , Willy Benz
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