Effect of the early formation of the clump with different ω. This figure shows the time evolution of the radial positions of clumps forming at the same radius R_init = 34 AU in different disks with different ω and the same M_MCC = 1 M_⊙ and T_MCC = 15 K. The solid line represents the evolution of the radial position of a clump forming at i = 2.7 × 10⁵ yr in a disk with ω = 2.8 × 10⁻¹⁴ s⁻¹ and the dashed line represents that of a clump forming at i = 1.8 × 10⁵ yr in a disk with ω = 5.0 × 10⁻¹⁴ s⁻¹. The shaded regions indicate the fragmentation regions, which refer to when and where the fragmentation conditions are satisfied.