Left panel: azimuthally averaged radial brightness profile from the ALMA image (black dots) and from our model (blue line). Middle panel: radial cut along the major axis of the Q_ϕ frames (negative radial direction is along the red-shifted semi-major axis, which is nearly coincident with the south-east direction). Right panel: sepectral energy distribution towards PDS 70; black dots correspond to the source’s photometry and the blue line is our prediction.