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    • Radial distribution of the integrated light and photometric colours in open star clusters

      Ram Sagar Harish C. Bhatt

      Volume 10 Issue 2 June 1989 pp 173-182

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/010/02/0173-0182

    • Keywords

       

      integrated light and colours; star clusters; population synthesis

    • 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.

    • Author Affiliations

       

      Ram Sagar1 Harish C. Bhatt1

      1. Indian Institute of Astrophysics, Bangalore - 560034

    • Dates

       
      Published
      June 1989
      Manuscript received
      28 November 1988
      Accepted
      25 March 1989

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