| Seminar Title |
Dynamical Modelling of the colour distribution of globular clusters |
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Speaker: |
Dr. Christoph Euler |
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Affiliation: |
（Astronomisches Rechen-Inst., Center for Astronomy Univ. of Heidelberg and NAOC/CAS Beijing） |
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When: |
Tuesday morning, Feb. 14th , 9:30-10:30 a.m |
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Where: |
The 1st Floor, SOFTECH Building (NJU) |
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Welcome to Attend |
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( PMO Academic Committee & Academic Circulating committee) |
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Abstract
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.
