Effect of the initial and mass loss parameters of the RLOF models on the final period and eccentricity of the orbit. Panel A) Models with different initial periods (indicated by the black arrows) and different companion masses: M_a = 0.8 (blue stars), M_a = 1.0 (red dots) and M_a = 1.15 (green squares). Panel B) Models with different mass loss fractions α and β, for two companion masses: 1.0 M_⊙ (red circles) and 1.15 M_⊙ (blue squares). The black arrow indicates decreasing α and increasing β, δ is constant at 0.2. The sum of the mass loss fractions is unity for each model. Panel C) Models with different mass loss fractions δ: 0.1, 0.2 and 0.3, with γ = 1.12 (red squares) and different values for γ: 0.9, 1.0, 1.2 and 1.3 with δ = 0.3 (blue dots). These models don’t have accretion, thus α = β = (1 − δ) / 2. Panel D) The effect of the accreted fraction for two companion masses and accretion fractions of 0%, 10% and 20%. M_a = 1.0 M_⊙ (red circles) and M_a = 1.15 M_⊙ (blue squares). See Sects. 6.2.2 and 6.2.3 for discussion.