Same as Fig. 6, but for different α_acc (blue for α_acc = 1 × 10⁻³, green for α_acc = 3 × 10⁻³, and red for α_acc = 1 × 10⁻², respectively). Here, Disk 2, τ_s = 0.01, Ṁ_g = 10⁻⁸M_⊙ yr⁻¹, F_p/g = 0.47, and k_SI = 10⁻³ are used. A large deviation between the analytical estimation (blue dashed line) and the simulation (blue solid line) for α_acc = 1 × 10⁻³ is seen in the right panel (see texts for the potential reason).