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Fig. 6.

image

Derivation of the stellar mass ratio in WW Cha via comparison with evolutionary models. The gray curve uses the Siess tracks, and the black curve considers the Pisa tracks. The two median ages considered are 1 and 2 Myr. For each age, two vertical bars are plotted apart for better readability. The derived temperature and luminosity are only reported for the primary component for the two extreme values of the mass ratio.

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