Gas surface density and disc midplane temperature of the CPD of PDS 70 c. The blue curves represent the plausible case: M_pl = 10 M_J, ${\dot{M}}_{\mathrm{g},\mathrm{p}\mathrm{l}}$ = 2 × 10⁻⁷ M_J yr⁻¹, x = 0.01, and α = 10⁻⁴. The sky-blue, red, orange, green, and grey curves represent the cases with x = 0.001, ${\dot{M}}_{\mathrm{g},\mathrm{p}\mathrm{l}}$ = 2 × 10⁻⁸ M_J yr⁻¹, M_pl = 5 M_J, α = 10⁻⁵, and α = 10⁻⁶, respectively. The vertical dotted lines are the outer edges of the gas inflow regions, r = r_inf, which only depends on M_pl. The oblique dashed lines in the upper and lower panels represent the slopes of ∑_g ∝ r^−37/50 and T ∝ r^−19/25, respectively. Shaded grey regions represent the planetary atmosphere.