Fig. 11
Spectroscopic HR diagram for the stars analysed. Squares mark stars identified as binaries, or suspected of binarity. Stars in red are not considered cluster members. Evolutionary tracks from Ekström et al. (2012) with vrot,0 = 0 and solar metallicities are shown as references. Isochrones from the same source correspond to log t = 6.3, 6.5, and 6.6.
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