The luminosity-function evolution of young open clusters.

Details The luminosity-function evolution of young open clusters. The luminosity-function evolution of young open clusters.

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acaps..17..401k&link_type=abstract

Acta Astrophys. Sin., Vol. 17, No. 4, p. 401 - 406

Astronomy and Astrophysics

Astrophysics

Open Clusters: Luminosity Function, Open Clusters: Ages

Scientific paper

The luminosity function of a star cluster evolves markedly during the pre-main sequence phase. With an assumed initial mass function and pre-main sequence tracks, the authors calculate a set of monochromatic luminosity functions which, when compared with observations, can be used to infer the age and star formation history of a star cluster. Applied to the Trapezium cluster, their model suggests an age close to a million years, whereas in IC 348 the age estimate yields 4 - 6 million years and continual bursts of star formation seem to have occurred in this cluster. CCD imaging observations in the I-band are presented for NGC 663, for which an age of 10 - 30 million years is inferred.

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