Top panel: cut of H₂ 1–0 S(1) surface brightness along the blue jet axis, before and after deconvolution by the PSF. The drop in flux inside results from our continuum subtraction procedure. Deconvoled peak values should be viewed with caution. Bottom panel: transverse FWHM of H₂ 1–0 S(1) emission in the blue lobe as a function of the distance to the star, as measured in the deconvolved image. In red, we superimpose the FWHM of [Fe II]1.64 μm at the same epoch in two velocity ranges: MVB (–160 km s^-1 < V <  + 50 km s^-1) and HVB (V <  − 160 km s^-1), taken from Paper I.