Azimuthally averaged density profile in the midplane for different smoothing lengths and resolutions. The legend indicates the used smoothing length parameter ϵ = r_sm/r_H and the characteristic grid cell width inside the envelope (dx/r_H). Only in our highest resolution runs with a small smoothing length do we correctly capture the envelope structure to within a radius of 0.1 r_H. Inside this radius, we start to see the influence of the smoothing length that reduces gas densities towards the core.