Deprojected, smoothed radial-intensity profiles of data and best-fit model at each wavelength. The data are indicated by plain lines, while the best-fit MCFOST model at each radius is depicted by dashed lines. The shaded area corresponds to the error on the data radial profiles computed following Equation (1). From left to right, the panels show the radial profiles at 0.9 mm, 1.3 mm, 3.0 mm, and 8.9 mm. The 0.9 mm data are shown in their original resolution and were not used in the modelling procedure. The other observations were smoothed to a common resolution of 0.12″ × 0.12″. The geometric mean of the full beam size is represented by the inset curve at the top right of each panel.