Dust temperature (first panel), dust surface density (second panel), maximum grain size (third panel), and power index of the grain size distribution (fourth panel) measured from an SED analysis of the compact disk model (see Sect. 4.1). The SED includes emission from 0.87 mm to 7.46 mm, simulated with infinite resolution. The blue solution is obtained considering the power index of the grain size distribution (q) as one of the parameter of the SED analysis. Instead, the orange solution is the result of an SED analysis fixing q = 3.5, the expected value in our simulations. The continuum line represents the 50th percentiles of the marginalized probability distribution of the parameters, the shaded area extends from the 16th to the 84th percentiles. The black line indicates the dust properties of the models. The vertical gray lines represent the positions of the bright (B) and dark (D) gaps in the dust surface density profile.