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The age distribution and total lifetimes of open clusters

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Abstract

The age distribution of galactic clusters is obtained from well-observed star clusters, and it is concluded that the observed age distribution of clusters within 1000 pc is not seriously affected by the selection effects. If we assume that the rate of formation of clusters is constant, the observed age distributions of clusters for Trumpler's different richness classes have been obtained; and it is found that the rich clusters have longer lifetimes than the poor clusters.

The lifetimes of clusters log(τ1/2) for different richness classes obtained in the present study differ significantly from the lifetimes obtained by Janes and Adler (1982), because the lifetimes obtained by Janes and Adler may have been affected by the age-dependent selection effects which grow with increasing distance. From the observed age distribution of all clusters within 1000 pc the results obtained in the present study are in close agreement with the lifetimes obtained by Wielen (1971a).

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References

  • Becker, W. and Fenkart, R.: 1971,Astron. Astrophys. Suppl. 4, 241.

    Google Scholar 

  • Janes, K. and Adler, D.: 1982,Astrophys. J. Suppl. 49, 425.

    Google Scholar 

  • Lindoff, U.: 1968,Arkiv Astron. 5, 1.

    Google Scholar 

  • Lynga, G.: 1982,Report from the Observatory of Lund, No. 18, p. 68.

    Google Scholar 

  • Lynga, G.: 1983,Catalogue of Open Cluster Data, 3rd ed., Stellar Data Centre, Observatoire de Strasbourg, France.

    Google Scholar 

  • Oort, J. H.: 1958,Ric. Astron. Specola Astron. Vatic. 5, 63 (D. J. K. O'Connell (ed.),Stellar Populations).

    Google Scholar 

  • von Hoerner, S.: 1958,Z. Astrophys. 44, 221.

    Google Scholar 

  • Wielen, R.: 1971a,Astron. Astrophys. 13, 309.

    Google Scholar 

  • Wielen, R.: 1971b,Astrophys. Space Sci. 13, 300.

    Google Scholar 

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Authors and Affiliations

  1. Uttar Pradesh State Observatory, Manora Peak, Naini Tal, India

    A. K. Pandey & H. S. Mahra

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  1. A. K. Pandey
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  2. H. S. Mahra
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Pandey, A.K., Mahra, H.S. The age distribution and total lifetimes of open clusters. Astrophys Space Sci 126, 167–175 (1986). https://doi.org/10.1007/BF00644184

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  • DOI: https://doi.org/10.1007/BF00644184

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