Radial dependence of the azimuthally averaged surface densities of gas (blue curve), grown dust (red curve), and small dust (green curve) at evolutionary time t = 946 kyr for all ourmodels. The dashed vertical lines mark the radial distance at which the radius of dust particles a_r = 0.85∕2π mm. Thin curves in top panel show the gas surface densities of three observed disks derived by Powell et al. (2019).