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

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We introduce an improved code for simulations of star clusters, called MOCCA. It combines the Monte Carlo method for star cluster evolution and the Fewbody code to perform scattering experiments. The Fewbody was added in order to track more…

星系天体物理 · 物理学 2015-06-05 Arkadiusz Hypki , Mirek Giersz

Representing single stellar populations, globular clusters (GCs) are relatively easy to model, thus providing powerful tools for studying the evolution of galaxies. This has been demonstrated for the blue compact galaxy ESO338-IG04. GC…

天体物理学 · 物理学 2016-08-30 G. Östlin

We study the compact binary population in star clusters, focusing on binaries containing black holes, using a self-consistent Monte Carlo treatment of dynamics and full stellar evolution. We find that the black holes experience strong mass…

太阳与恒星天体物理 · 物理学 2011-04-07 J. M. B. Downing , M. J. Benacquista , M. Giersz , R. Spurzem

Galactic globular clusters are ancient building blocks of our Galaxy. They represent a very interesting family of stellar systems in which some fundamental dynamical processes have been taking place for more than 10 Gyr, but on time scales…

天体物理学 · 物理学 2018-03-28 G. Meylan

Evolution with mass segregation and the evolution of the rotation of cores are both discussed for self-similar core collapse. Evolution with angular velocity proportional to the square root of the density is predicted. On the Dynamical Main…

天体物理学 · 物理学 2007-05-23 Donald Lynden-Bell

We probe the evolution of globular clusters that could form in giant molecular clouds within high-redshift galaxies. Numerical simulations demonstrate that the large and dense enough gas clouds assemble naturally in current hierarchical…

天体物理学 · 物理学 2009-11-13 Oleg Y. Gnedin , Jose L. Prieto

Numerical simulations have shown that black holes (BHs) can strongly influence the evolution and present-day observational properties of globular clusters (GCs). Using a Monte Carlo code, we construct GC models that match the Milky Way (MW)…

高能天体物理现象 · 物理学 2018-03-21 Kyle Kremer , Claire S. Ye , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

The main topic of this paper is the investigation of the modes of interaction of globular clusters (GCs) moving in the inner part of a galaxy. This is tackled by means of high-resolution N-body simulations, whose first results are presented…

天体物理学 · 物理学 2010-11-11 P. Miocchi , R. Capuzzo Dolcetta , P. Di Matteo , A. Vicari

Stellar collisions are an important formation channel for blue straggler stars in globular and old open clusters. Hydrodynamical simulations have shown that the remnants of such collisions are out of thermal equilibrium, are not strongly…

天体物理学 · 物理学 2009-11-13 E. Glebbeek , O. R. Pols , J. R. Hurley

We present a direct N-body simulation modeling the evolution of the old (7 Gyr) open cluster NGC 188. This is the first N-body open cluster simulation whose initial binary population is directly defined by observations of a specific open…

太阳与恒星天体物理 · 物理学 2015-05-14 A. M. Geller , J. R. Hurley , R. D. Mathieu

The rotational evolution of a young stellar population can give informations about the rotation pattern of more evolved clusters. Combined with rotational period values of thousands of young stars and theoretical propositions about the…

太阳与恒星天体物理 · 物理学 2021-11-18 Maria Jaqueline Vasconcelos , Jérôme Bouvier , Florian Gallet , Edson A. Luz Filho

We have modeled in detail the evolution of rich open star clusters such as the Pleiades, Praesepe and Hyades, using simulations that include stellar dynamics as well as the effects of stellar evolution. The dynamics is modeled via direct…

天体物理学 · 物理学 2009-11-07 Simon Portegies Zwart , Piet Hut , Steve McMillan , Jun Makino

The current generation of galaxy simulations can resolve individual giant molecular clouds, the progenitors of dense star clusters. But the evolutionary fate of these young massive clusters, and whether they can become the old globular…

Globular clusters are among the most congested stellar systems in the Universe. Internal dynamical evolution drives them toward states of high central density, while simultaneously concentrating the most massive stars and binary systems in…

太阳与恒星天体物理 · 物理学 2015-06-22 Stephen L. W. McMillan

The dynamical evolution of globular clusters is theoretically described by a series of well known events typical of N-body systems. Still, the identification of observational signatures able to empirically describe the stage of dynamical…

太阳与恒星天体物理 · 物理学 2023-02-01 Giacomo Beccari , Mario Cadelano , Emanuele Dalessandro

Observations of rich LMC and SMC clusters reveal an increasing spread in core radius with age. This trend likely represents real physical evolution in these systems. Old Magellanic Cloud clusters appear either extended or compact. Similar…

天体物理学 · 物理学 2007-05-23 A. D. Mackey , G. F. Gilmore

We have studied the dynamical evolution of rotating globular clusters with direct $N$-body models. Our initial models are rotating King models; we obtained results for both equal-mass systems and systems composed out of two mass components.…

天体物理学 · 物理学 2009-10-07 Andreas Ernst , Patrick Glaschke , Jose Fiestas , Andreas Just , Rainer Spurzem

We present a new two-fluid conduction scheme to simulate the evolution of an isolated, self-gravitating, equilibrium cluster of stars and collisionless dark matter on secular (gravothermal) timescales. We integrate the equations in…

星系天体物理 · 物理学 2025-07-24 Yi-Ming Zhong , Stuart L. Shapiro

(Abridged) In this celebratory contribution, we present some new data from standard star cluster modelling containing primordial binaries and triples, as well as results from a binary black hole simulation with two massive members. In the…

天体物理学 · 物理学 2007-05-23 Sverre Aarseth

It was recently demonstrated that contact binaries occur in globular clusters (GCs) only immediately below turn-off point and in the region of blue straggler stars (BSs). In addition, observations indicate that at least a significant…

太阳与恒星天体物理 · 物理学 2015-05-13 Kazimierz Stepien , Marcin Kiraga