This article has an erratum: [https://doi.org/10.1051/0004-6361/201731832e]
Distribution of a comparison sample of K and M giants from Famaey et al. (2005) in the HRD. Data are presented as a contour density plot. STAREVOL evolutionary tracks for stars with initial masses 1, 2, 3, 4, 5, and 6 M⊙ (from bottom to top) and [Fe/H] = –0.25 are superimposed; white colours correspond to Hertzsprung-gap and RGB evolution, green colours to core He-burning, and red to AGB evolution. Stars from the Y group correspond to the faint extension of the stellar density in the regions covered by the 4, 5, and 6 M⊙ evolutionary tracks.
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