Physics
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1111...83d&link_type=abstract
PROBING STELLAR POPULATIONS OUT TO THE DISTANT UNIVERSE: CEFALU 2008, Proceedings of the International Conference. AIP Conferen
Physics
Star Formation, Galaxy Groups, Clusters, And Superclusters, Large Scale Structure Of The Universe, Globular Clusters In The Milky Way
Scientific paper
Stellar cluster ages are usually estimated by adopting as cosmic clock the luminosity of the upper end of the Main Sequence (MS) this implies an independent evaluation of the cluster distance. Age determination of stellar clusters is affected by several sources of uncertainty: the estimated chemical composition of the cluster, the physical inputs adopted in the theoretical calculations and the observational errors. In this contribution I will quantitatively discuss these points.
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