Teff– logg diagram for all the single stars and SB1 systems. The symbols are color coded by WLi (upper panel) and (lower panel). The black lines are post-MS evolutionary tracks from Girardi et al. (2000) with a metallicity Z = 0.019. In the lower panel, the lithium-rich giant candidates listed in Table 4 are enclosed in open squares. The two very lithium rich giants (#17 and #27) and the youngest PMS star (#31, see Sect. 4.3) are also indicated.
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