Galactic Globular Cluster Relative Ages
Based on a new large, homogeneous photometric database of 34 Galactic globular clusters (GGCs plus Palomar 12), a set of distance- and reddening- independent relative age indicators has been measured. The observed δ(V-I)2.5 and ΔVHBTO versus metallicity relations have been compared with the relations predicted by two recently updated libraries of
Rosenberg, A. et al.
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1999