Radial intensity for the ALMA observation (orange line) along with our two relative intensity profiles for the four- and five-planet simulation in blue and green, respectively. The relative intensity of the simulation was calculated assuming that the planetesimals emit as blackbodies, following the relation I(r) ∝ Σ(r)r^–1/2. The intensity was smoothed using a Gaussian filter of 43 au. The beam size is shown as the black line. The locations of Planet b (red) and Planet x (violet) are marked by vertical lines for reference.