A new method to create initially mass segregated star clusters in virial equilibrium

A new method to create initially mass segregated star clusters in virial equilibrium
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一种在维里平衡中创建初始质量分离星团的新方法

DOI:
10.1111/j.1365-2966.2008.12993.x
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发表时间:
2008
影响因子:
4.8
通讯作者:
Baumgardt
Baumgardt
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Kroupa;Baumgardt

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质量分离是自引力星星团动力学演化的最强特征之一。本文建立了质量分离的星星团维里平衡的参数化模型。为了这个目的,我们引入平均粒子间的潜力统计描述的非隔离系统,并提出了一个单参数的推广,它的形式,给出了一个大规模的隔离状态。我们描述了一个算法,用于构建适当的星星集群模型。他们的稳定性在几个交叉时间验证以下的演变通过directN体积分。
Mass segregation stands as one of the most robust features of the dynamical evolution of self-gravitating star clusters. In this paper we formulate parametrized models of mass segregated star clusters in virial equilibrium. To this purpose we introduce mean interparticle potentials for statistically described unsegregated systems and suggest a single-parameter generalization of its form which gives a mass segregated state. We describe an algorithm for construction of appropriate star cluster models. Their stability over several crossing-times is verified by following the evolution by means of directN-body integration.
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DOI: 10.1111/j.1365-2966.2005.09842.x
发表时间: 2005
影响因子: 4.8
作者:
P. Miocchi
通讯作者: P. Miocchi
DOI: 10.1046/j.1365-8711.2003.06407.x
发表时间: 2003
影响因子: 4.8
作者:
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通讯作者: J. Makino
球状星团周围块状潮汐尾的形成和演化
DOI: 10.1086/426006
发表时间: 2004
期刊: The Astronomical Journal
影响因子: --
作者:
P. D. Matteo;R. Capuzzo;P. Miocchi
通讯作者: P. Miocchi
DOI: 10.1086/109750
发表时间: 1965
期刊: The Astronomical Journal
影响因子: --
作者:
I. King
通讯作者: I. King