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Fig. 9
Histogram distribution of (J − Ks) color for 1,630 M-giant stars with −7.6 < MKs < −7.2 per 0.05 mag interval. Arrows indicate the predicted (J − Ks) colors of the isochrones for M-giant stars (Marigo et al. 2008) at MKs = −7.4 with Z = 0.008 and ages of log (tyr) = 9.0 and 9.7.
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