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Fig. 1


Model evolution of V565 Lyr. Horizontal areas with dashed central lines represent the observed error ranges. The solid line represents the evolution with the mean observed mass and the areas around it represent the 1σ mass range (see Table 1). The two panels show the radius evolution of the primary (top) and secondary (bottom) for V565 Lyr with [Fe/H] i = 0.40, Yi = 0.32. The models include diffusion. Within the errors a common age of 7.08 ± 0.15 Gyr is found (vertical lines).

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