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The evolution of globular clusters
Shu, Chenggang1; Luo, Zhijian1; Han, Mao-an2; Chian, Abraham C. -L.3; Chen, Wen-Ping4; Wu, Zhen-yu5
2010-08-16
发表期刊ADVANCES IN SPACE RESEARCH
卷号46期号:4页码:500-508
摘要Taking a wide range of the initial conditions, including spatial density distribution and mass function etc, the dynamical evolution of globular clusters in the Milky Way is investigated in detail by means of Monte Carlo simulations. Four dynamic mechanisms are considered: stellar evaporation, stellar evolution, tidal shocks due to both the disk and bulge, and dynamical friction. It is found that stellar evaporation dominates the evolution of low-mass clusters and all four are important for massive ones. For both the power-law and lognormal initial clusters mass functions, we can find the best-fit models which can match the present-day observations with their main features of the mass function almost unchanged after evolution of several Gyr. This implies that it is not possible to determine the initial mass function only based on the observed ones today. Moreover, the dispersion of the modelled mass functions mainly depends on the potential wells of host galaxies with the almost constant peaks, which is consistent with current observations. (C) 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.
关键词Globular Clusters Evolution Dynamics
DOI10.1016/j.asr.2010.03.009
收录类别SCI
语种英语
WOS记录号WOS:000280940500017
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7778
专题光学天文研究部
作者单位1.Shanghai Normal Univ, Shanghai Key Lab Astrophys, Shanghai 200234, Peoples R China
2.Shanghai Normal Univ, Dept Math, Shanghai 200234, Peoples R China
3.Natl Inst Space Res INPE, BR-12227010 Sao Jose Dos Campos, SP, Brazil
4.Natl Cent Univ, Grad Inst Astron, Chungli 32054, Taiwan
5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Shu, Chenggang,Luo, Zhijian,Han, Mao-an,et al. The evolution of globular clusters[J]. ADVANCES IN SPACE RESEARCH,2010,46(4):500-508.
APA Shu, Chenggang,Luo, Zhijian,Han, Mao-an,Chian, Abraham C. -L.,Chen, Wen-Ping,&Wu, Zhen-yu.(2010).The evolution of globular clusters.ADVANCES IN SPACE RESEARCH,46(4),500-508.
MLA Shu, Chenggang,et al."The evolution of globular clusters".ADVANCES IN SPACE RESEARCH 46.4(2010):500-508.
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