Ages of globular clusters

Astronomy and Astrophysics – Astronomy

Scientific paper

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Color-Magnitude Diagram, Galactic Evolution, Globular Clusters, Stellar Evolution, Halos, Horizontal Branch Stars, Main Sequence Stars, Metallicity, Stellar Luminosity

Scientific paper

Ages have been calculated for 41 globular clusters for which color-magnitude diagram studies allow a determination of the luminosity difference between the horizontal-branch and the main-sequence turnoff point. The data indicate only weak support for a slight difference in age between clusters in the inner halo and those in the outer halo. No correlation between cluster ages and cluster metallicities is found.

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