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相关论文: N-Body Simulations of Star-Disc Captures in Globul…

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We subject to an N-body numerical investigation our analysis of Paper I on the survival of stellar clusters undergoing rapid mass loss. We compare analytical tracks of bound mass-fraction {\it vs} star formation efficiency $\epsilon$ to…

天体物理学 · 物理学 2009-11-07 C. M. Boily , P. Kroupa

We review what has been learned recently using N-body simulations about the evolution of globular clusters. While simulations of star clusters have become more realistic, and now include the evolution of single and binary stars, the…

天体物理学 · 物理学 2007-05-23 Douglas C. Heggie

We investigated numerically the dust growth driven by Brownian motion in a proto-planetary disc around a solar-type young stellar object. This process is considered as the first stage in the transformation of the initially micron-sized…

天体物理学 · 物理学 2007-05-23 S. Kempf , S. Pfalzner , Th. Henning

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…

天体物理学 · 物理学 2016-08-30 S. J. Aarseth , D. C. Heggie

We investigate the evolution of binary fractions in star clusters using N-body models of up to 100000 stars. Primordial binary frequencies in these models range from 5% to 50%. Simulations are performed with the NBODY4 code and include a…

天体物理学 · 物理学 2009-06-23 Jarrod R. Hurley , Sverre J. Aarseth , Michael M. Shara

Utilizing a series of N-body simulations, we argue that gravitationally bound stellar clusters of modest population evolve very differently from the picture presented by classical dynamical relaxation theory. The system's most massive stars…

太阳与恒星天体物理 · 物理学 2015-05-19 Joseph M. Converse , Steven W. Stahler

Most of massive stars form in binary or higher-order systems in clumpy, sub-structured clusters. In the very first phases of their life, these stars are expected to interact with the surrounding environment, before being released to the…

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 N-body integration to follow the evolution of clusters of 200 binary systems with different initial half mass radii $R_{0.5}$. We also simulate single-star clusters. All clusters evolve according to the same $n(t)$ curve, where…

天体物理学 · 物理学 2015-06-24 Pavel Kroupa

We compare the results for the dynamical evolution of star clusters derived from anisotropic gaseous models with the data from N-body simulations of isolated and one-component systems, each having modest number of stars. The statistical…

天体物理学 · 物理学 2015-06-24 Mirek Giersz , Rainer Spurzem

The fraction of stars in binary systems within star clusters is important for their evolution, but what proportion of binaries form by dynamical processes after initial stellar accretion remains unknown. In previous work, we showed that…

In order to interpret the results of complex realistic star cluster simulations, which rely on many simplifying approximations and assumptions, it is essential to study the behavior of even more idealized models, which can highlight the…

天体物理学 · 物理学 2009-11-11 D. C. Heggie , M. Trenti , P. Hut

The high multiplicity of massive stars in dense, young clusters is established early in their evolution. The mechanism behind this remains unresolved. Recent results suggest that massive protostars may capture companions through disk…

天体物理学 · 物理学 2009-11-13 Nickolas Moeckel , John Bally

Most stars are born in the crowded environments of gradually forming star clusters. Dynamical interactions between close-passing stars and the evolving UV radiation fields from proximate massive stars are expected to sculpt the…

星系天体物理 · 物理学 2024-09-20 Aayush Gautam , Juan P. Farias , Jonathan C. Tan

It is well-known that some star clusters contain composite stellar populations (CSPs), in which the metallicities or (and) ages of stars are different. The formation and evolution of such clusters and their stellar populations remain…

星系天体物理 · 物理学 2025-11-11 Zhongmu Li , Rainer Spurzem

Both simulations and observations indicate that stars form in filamentary, hierarchically clustered associations, most of which disperse into their galactic field once feedback destroys their parent clouds. However, during their early…

地球与行星天体物理 · 物理学 2015-06-15 Jonathan M. Craig , Mark R. Krumholz

Wide (soft) binaries are expected to be rapidly disrupted in dense stellar environments, yet they are observed in both the Galactic field and open clusters (OCs). In this paper, we investigate the formation and disruption of wide binaries…

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

The past few years have seen dramatic improvements in the scope and realism of star cluster simulations. Accurate treatments of stellar evolution, coupled with robust descriptions of all phases of binary evolution, have been incorporated…

天体物理学 · 物理学 2007-05-23 Stephen L. W. McMillan

Characterization of the binary fractions in star clusters is of fundamental importance for many fields in astrophysics. Observations indicate that the majority of stars are found in binary systems, while most stars with masses greater than…

太阳与恒星天体物理 · 物理学 2015-10-02 Richard de Grijs , Chengyuan Li , Aaron M. Geller
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