Left column: continuum emission maps, all contours are set with 3σ spacing, panel a: ALMA data at 0.87 mm, σ = 0.051 mJy beam⁻¹, contours; (c) NOEMA data at 1.3 mm, σ = 0.078 mJy beam⁻¹; (e) ALMA data at 2.8 mm, σ = 0.008 mJy beam⁻¹. We note that the scale of panel c is changed to include the more extended emission. Right column: real part of the visibility (with spatial binning) as a function of the u, v radius in the Fourier plane, panels b, d, and f: correspond to data in panels a, c, and e, respectively.