Abstract
Using stellar evolutionary models which have been computed for the preferred set of element abundances, ages of 13–14 Gyr are derived for the Galactic globular clusters. No significant (> 1.5 Gyr) spread in age is found as a function of either metal content or galactocentric distance. The lack of an age-metallicity relation is shown to be contingent upon the assumption that [O/Fe] is anticorrelated with [Fe/H]: the use of scaled solar abundance calculations would predict that the most metal-poor systems are about 3 × 109 yr older than the most metal-rich clusters. Some evidence in support of high oxygen-to-iron ratios is discussed.
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Vandenberg, D.A. (1988). Ages of the Galactic Globular Clusters. In: Grindlay, J.E., Davis Philip, A.G. (eds) The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies. International Astronomical Union / Union Astronomique Internationale, vol 126. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-1104-9_15
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DOI: https://doi.org/10.1007/978-94-015-1104-9_15
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