Hertzsprung-Russell diagram: evolutionary tracks of Clés models for the primary star (upper panel) and secondary star (lower panel) corresponding to the best-fit models listed in Table B.1 together with Series II(3) for the primary and Model III_S for the secondary. All models have α_ov = 0.30, primary models have ξ = 1 while secondary models have ξ = 0.1. The dots over-plotted on the evolutionary tracks of the primary correspond to the models for which k_2, 1 is equal to , while the open circles correspond to the models for which k_2, 1 is equal to . The filled 5-branch stars over-plotted on the secondary tracks correspond to the models for which the age is equal to the age of the best-fit model of the primary star of same X and Z. The observational value is represented by the red point, and its error bars are represented by the dark red parallelogram.