Upper panels: dust density distribution at 1.5 Myr of evolution when two planets are injected in the disk simultaneously. The mass of the inner planet is 20 M_Jup and it is located at r_p1 ~ 10−15 AU, while the outer planet at r_p2 ≳ 70 AU is assumed to be M_p2 = [5,10,15,20] M_Jupfrom left to right panels respectively. The white line is St = 1, and the blue line is a_frag. The corresponding real part of the visibilities for each M_p2 at λ = 0.87 mm (middle panels) and λ = 7.0 mm (lower panels) are displayed for different times of dust evolution, for each M_p2. ALMA Cycle 0 and ATCA data are over-plotted for comparison.