Comparison of redshifts when the central density contrast reaches 200 for two-body and three-body interactions as function of the interaction strengths g₂ and g₃, respectively, with m = 30 eV, L = 100 kpc, and T/T_c = 0.1. The three-body interaction is multiplied by to make the comparison clearer. Both the superfluid case (solid lines) and the non-superfluid (striped lines) are shown.