Density profiles for gas (solid red line) and dust (solid blue for mm-sized and solid green for micron-sized) obtained from our simulations in the coplanar case using α = 0.002. The gas and dust density profiles from the model by Andrews et al. (2014) are also plotted (dashed lines) for comparison. It is clear that the solid blue line showing the mm-sized dust surface density profile is not consistent with the data (gray shaded area).