Fig. 7.
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Kiel diagram (Teff, log g) for the sample stars. The symbol radius is proportional to the mass. Evolutionary tracks from STAREVOL (see text) have been overplotted for stars with [Fe/H] = 0, and masses of 1 M⊙ (blue curve), 1.5 M⊙ (black curve). Also plotted are tracks for [Fe/H] = −0.25, 1 M⊙ (green curve) and 1.5 M⊙ (cyan curve), and [Fe/H] = −0.5, 0.9 M⊙ (red curve).
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