The effect of main-sequence stars on age estimates of open clusters

Details The effect of main-sequence stars on age estimates of open clusters The effect of main-sequence stars on age estimates of open clusters

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.113..171s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 113, no. 1, July 1985, p. 171-180. Research supported by the Royal Society

Astronomy and Astrophysics

Astrophysics

6

Chronology, Main Sequence Stars, Open Clusters, Histograms, Stellar Evolution

Scientific paper

Existing methods for age estimation of open clusters are discussed. Most of the observed open clusters (except extremely young and old) contain 50-90 percent unevolved Main-Sequence stars. Possible difficulties encountered in estimating the actual age of an unevolved Main-Sequence star are discussed. For a relatively reliable cluster age estimation only a small percentage of cluster members are suitable. The effect of unevolved Main-Sequence stars on open cluster age estimates using the modified method of isochrones is analyzed.

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