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Fig. 3.

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Position of target stars in the H–R diagram. For each star, three selected MESA evolutionary tracks (Paxton et al. 2011; Dotter 2016; Choi et al. 2016) are shown (in green, red, and blue), calculated for the specific metallicity of the star. The evolution before and during the first RGB is represented in darker shades, while the AGB evolution is depicted in lighter shades. The post-AGB evolution is omitted for clarity.

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