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Fig. 4.

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TAHB age values for HB stars as a function of the HB mass. Red, cyan, and yellow lines correspond to progenitor masses of 0.700, 0.800, and 0.900 M⊙, respectively, while in gray are shown BaSTI TAHB loci for comparison, with the progenitor mass of the BaSTI models indicated in each panel.
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