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Fig. 3.


γ index as a function of effective temperature (upper/left panel) and observed V vs. V-I diagrams of the GES targets selected as cluster members (red bullets), candidate giants (green squares), RC giants (magenta plus symbols), foreground (black bullets), and background (blue bullets) MS stars. The horizontal solid segments and the dashed line in the upper left panel indicate the limits used to select giants and the MS locus, respectively. The red solid line in the other panels is the 0.1 Myr PISA isochrone described in the text.

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