Radial temperature profiles of the disk with and without stellar irradiation at time 120 kyr. Values of R_ℓ14_nofeed are plotted with lighter colors. The temperature is averaged (mass-weighted) vertically within H (orange) and3H (green). The snow line (R₁₅₀) is marked with a vertical dashed cyan line. The disk temperature is significantly lower when no stellar irradiation is introduced, while the slope of radial profile does not seem to differ significantly.