Left panel: location of the main emitting region for the near-infrared and (sub)mm dust emission and the ¹²CO J = 3 − 2 line in the reference model. The vertical lines of the boxes denote the radii where the cumulative flux in radial directions reaches 15 and 85%, respectively. The horizontal lines denote the heights where the cumulative flux integrated vertically reaches 15 and 85% at each radial position. The coloured contours show the CO number density and the dotted grey line shows where the visual extinction A_V reaches unity. Right panel: normalized radial intensity profiles (azimuthally averaged) for the dust continuum and line images. Shown are profiles derived from images convolved with representative beam sizes for SPHERE (blue, FWHM = 0.031′′), ALMA (black, FWHM = 0.012′′), and ngVLA (red, FWHM = 0.004′′).