Left: evolutionary tracks in the HR diagram for models of masses ranging from 1.23 M⊙ (lightest symbols) to 1.31 M⊙ (darkest symbols), with given physics. The filled circles indicate the points where the models reach ⟨ Δν ⟩ = ⟨ Δν ⟩ obs for HD 49385 (this location is materialized by the dotted line). Right: evolution of the central density for the same models. The value of the mean large separation has been used as an indicator of the age, for more convenience.
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