Fig. 6

Evolution of various quantities as a function of time (in yr) for model 29 (dash-dotted magenta curve) with final mass 0.735 M⊙ and model 30 (solid blue curve) with final mass 0.752 M⊙ under the assumption of cold accretion. Li/Li0 is the surface abundance of lithium in units of the initial mass fraction. Mrad is the size of the radiative core in M⊙. Tc is the central temperature and Ṁ (in M⊙ yr-1) is the accretion rate predicted by the hydrodynamical simulations. The black long-dashed curves are the predictions from a non-accreting stellar evolution models with mass 0.75 M⊙ from Baraffe et al. (1998).
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