HH30 1.33 mm continuum emission. Left panel: intensity cut across the minor axis of the disk (black curve) compared to the beam (red curve). Middle panel: continuum emission map at 1.33 mm rotated by 31^∘ and centred at α(J2000) = 04:31:37.5 and δ(J2000) = 18:12:23.8. The contours start at 10σ with 10σ steps. The 1σ noise level is of 21.74 μJy beam⁻¹. The white arrows localise the intensity cuts along and across the disk that are shown in the right and left panel, respectively. Right panel: intensity cut along the major axis of the disk. The blue Gaussian adjusts the decrease in flux beyond d = 0.54″ (r = 75 au), which is broader than the beam (red curve). The green curves represent the ±3σ variation of the longitudinal intensity profile.