Radius evolution (top panel) and evolutionary tracks (bottom) with varying final masses ranging from 0.05 M_⊙ (solid line), 0.1 M_⊙ (dashed), 0.3 M_⊙ (dotted), 1 M_⊙ (dot-dashed), and 1.5 M_⊙ (double dot-dashed). The accretion is cold (ξ = 0) and steady (10^-5M_⊙/ yr). The filled circles indicate the ages when the accretion is completed and the pluses, crosses, and asterisks represent 1, 5, and 10 million years, respectively. The calculation stops at 10¹⁰ yr or when stars start leaving the MS (only in the case of 1.5 M_⊙). We note that the evolutionary track of 0.05 M_⊙ is cut short.