Image Details
Caption: Fig. 17.
Correlation between (﹩V-I﹩) color and [Fe/H] for Milky Way GCs with ﹩E( B-V) < 0.2﹩ (triangles), M87 clusters (circles), and NGC 1399 clusters (crosses). The solid line is a result of fitting the data points with the bisector method, as described in Isobe et al. (1990). Details are given in Appendix B.
© 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.