报告题目：Dynamical Modelling of the colour distribution of globular clusters

报 告 人：Christoph Euler (Astronomisches Rechen-Inst., Center for Astronomy Univ. of Heidelberg and NAOC/CAS Beijing)

摘　  要：The color distribution of globular clusters is found to be bimodal, the bimodality changing with luminosity. Using color-magnitude diagrams of sets of clusters computed with orbit-averaged Monte Carlo simulations, it is suggested that different initial metallicites are main the reason for this observation. Groups of clusters with a bimodal color distribution are found to be older than a few Gyr, while young sets of clusters should not display such a bimodality.

时　  间：2012年2月14日（星期二）上午9:30-10:30

地　  点：苏富特 一楼 会议室

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