Steady-state solutions for the solid-to-gas mixing ratio Z as a function of the solid-to-gas-mass flux ratio ξ for different values of the Stokes number of solid particles τ_s (from 10^-5 to 10^-2, as labeled), assuming two values of the turbulent viscosity α = 10^-4 (in blue) and α = 10^-3 (in red). Equation (13) is numerically solved. In contrast to Fig. 1, we now consider that initially icy pebbles with τ_s,peb ~ 0.1 and containing a mass fraction ζ₀ = 1/3 in dust sublimate inside of the snow line. The thicker lines corresponds to the preferred value for the dust particles, τ_s = 10^-4.