Radial intensity profile of the synthetic images (previously convolved with a Gaussian with an FWHM of 0′′.04 in each case) after radiative transfer calculations assuming the particle density distributions from Fig. 3. The intensity profiles are obtained at 1.25 μm and 1.3 mm. The intensity profile at 1.25 μm is multiplied by r² to compensate for the stellar irradiation. The gray regions show the typical size of a coronograph or/and saturated inner pixels from typical observations at scattered light. Case of models without bumps.