Azimuthally averaged dust (dashed) and gas (solid) surface density for our best disk hosting a planet with an initial mass of 1.25 M_J after 50 orbits, initially located at 85 au from the central star. The gas surface density is scaled down by a factor of 10 at the end of the simulation, for a direct comparison with the dust phase. The dotted line indicates the surfacedensity profile of large dust grains inferred from the radiative transfer analysis (bottom panel of Fig. 3). After 50 orbits (measured at 85 au), the planet is at 78.4 au from the central star and its mass is 2.3 M_J.