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Fig. 2
Run of the fAGB = n(AGB)/n(RGB) ratio with the minimum mass along the HB Mmin (see Gratton et al. 2010) for both HST (upper panel) and ground-based data (lower panel). Filled squares are for GCs with [Fe/H] > −1.7, open squares for GCs with [Fe/H] < −1.7.
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