Peak flux density of disk B at 868 μm with a PP-disk model, with L_B = 3 L_⊙ and L_B = 7 L_⊙. The black dashed, horizontal line marks the peak continuum position of source B, while the blue area represents the uncertainty. We note that the disk mass reaches 0.35 M_⊙ and 0.5 M_⊙ at 7 g cm⁻² and 10 g cm⁻², respectively. The highest Class 0 disk mass found in a mm survey by Jørgensen et al. (2009) is ~ 0.46 M_⊙, with typical Class 0 disk masses of 0.05 M_⊙.