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相关论文: Monte Carlo modelling of globular star clusters - …

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(abridged) In this paper, we constrain the properties of primordial binary populations in Galactic globular clusters using the MOCCA Monte Carlo code for cluster evolution. Our results are compared to the observations of Milone et al.…

太阳与恒星天体物理 · 物理学 2015-06-23 Nathan W. C. Leigh , Mirek Giersz , Michael Marks , Jeremy J. Webb , Arkadiusz Hypki , Craig O. Heinke , Pavel Kroupa , Alison Sills

We discuss a new scenario for the formation of intermediate mass black holes in dense star clusters. In this scenario, intermediate mass black holes are formed as a result of dynamical interactions of hard binaries containing a stellar mass…

星系天体物理 · 物理学 2016-08-05 M. Giersz , N. Leigh , A. Hypki , N. Lützgendorf , A. Askar

We present the first study of the dynamical evolution of an isolated star cluster that combines a significant population of primordial binaries with the presence of a central black hole. We use equal-mass direct N-body simulations, with N…

天体物理学 · 物理学 2009-11-11 M. Trenti , E. Ardi , S. Mineshige , P. Hut

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

The dynamical formation of black hole binaries in globular clusters that merge due to gravitational waves occurs more frequently in higher stellar density. Meanwhile, the probability to form intermediate mass black holes (IMBHs) also…

高能天体物理现象 · 物理学 2020-09-09 Jongsuk Hong , Abbas Askar , Mirek Giersz , Arkadiusz Hypki , Suk-Jin Yoon

We present the first study of the dynamical evolution of a star cluster that combines a significant population of primordial binaries with the presence of a central black hole. We use direct N-body simulations, with a black hole mass of…

天体物理学 · 物理学 2007-05-23 M. Trenti , E. Ardi , S. Mineshige , P. Hut

The presence of multiple stellar populations in globular clusters leads to a complex dynamical environment that significantly influences the evolution of binary stars, which in turn impacts the evolution of the cluster itself. For this…

星系天体物理 · 物理学 2026-02-10 J. Bruce , E. Vesperini , A. Askar , E. Bortolan , M. Giersz , J. Hong , A. Hypki , A. P. Milone

We present results of a series of Monte Carlo simulations investigating the imprint of a central intermediate-mass black hole (IMBH) on the structure of a globular cluster. We investigate the three-dimensional and projected density…

星系天体物理 · 物理学 2012-07-12 Stefan Umbreit , John M. Fregeau , Sourav Chatterjee , Frederic A. Rasio

We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 x 10$^{4}$ to 3.2 x 10$^{5}$…

We study the evolution of binary stars in globular clusters using a new Monte Carlo approach combining a population synthesis code (StarTrack), and a simple treatment of dynamical interactions in the dense cluster core using a new tool for…

天体物理学 · 物理学 2009-11-10 N. Ivanova , K. Belczynski , J. M. Fregeau , F. A. Rasio

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

Most stars form in dense stellar environments. It is speculated that some dense star clusters may host intermediate-mass black holes (IMBHs), which may have formed from runaway collisions between high-mass stars, or from the mergers of less…

地球与行星天体物理 · 物理学 2020-08-26 Francesco Flammini Dotti , M. B. N. Kouwenhoven , Qi Shu , Wei Hao , Rainer Spurzem

We present an upgraded version of the \MOCCA code for the study of dynamical evolution of globular clusters (GCs) and its first application to the study of evolution of multiple stellar populations. We explore initial conditions spanning…

Using our recently improved Monte Carlo evolution code, we study the evolution of the binary fraction in globular clusters. In agreement with previous N-body simulations, we find generally that the hard binary fraction in the core tends to…

星系天体物理 · 物理学 2015-05-13 J. M. Fregeau , N. Ivanova , F. A. Rasio

Dense star clusters are promising nurseries for the formation and growth of intermediate-mass black holes (IMBHs; $\sim 10^2-10^5\,\mathrm{M}_{\odot}$), with increasing observational evidence pointing to their presence in massive star…

星系天体物理 · 物理学 2025-10-07 Abbas Askar , Marcelo C. Vergara , Sohaib Ali

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

A revision of Stodolkiewicz's Monte Carlo code is used to simulate the evolution of million body star clusters. The new method treats each superstar as a single star and follows the evolution and motion of all individual stellar objects. A…

天体物理学 · 物理学 2009-11-11 Mirek Giersz

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

The paper presents an analysis of properties of populations of blue stragglers (BSs) in evolving globular clusters, based on numerical simulations done with the MOCCA code for various initial globular clusters conditions. We find that…

星系天体物理 · 物理学 2017-01-18 Arkadiusz Hypki , Mirek Giersz

We investigate the evolution of star clusters containing intermediate-mass black hole (IMBH) of $300$ to $5000\ \mathrm{M}_\odot$, focusing on the formation and evolution of IMBH-stellar mass black holes (SBHs; $M_{\rm BH} \lesssim 10^2\…

星系天体物理 · 物理学 2025-03-31 Seungjae Lee , Hyung Mok Lee , Ji-hoon Kim , Rainer Spurzem , Jongsuk Hong , Eunwoo Chung
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