Radial distribution of the integrated light and photometric colours in open star clusters |
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| Authors: | Ram Sagar Harish C Bhatt |
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| Institution: | (1) Indian Institute of Astrophysics, 560034 Bangalore |
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| Abstract: | Mass segregation in the form of preferential concentration of more massive stars in the central regions of a number of open
star clusters has been known for some time. In this paper, integratedUBV colours in concentric zones have been estimated for 12 nearby open clusters using the observations of individual cluster
members. It is found that the clusters showing pronounced mass segregation also show significant radial variations in the
integrated colours. However, the effects of stochastic fluctuations around the massive portion of the mass distribution function
on the integrated colours should be taken into consideration, if they are present. |
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| Keywords: | integrated light and colours star clusters population synthesis |
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