Comparison between the observed and the best-fit model images at different wavelengths of the FT Tau protoplanetary disk. The best-fit model is defined by the following parameters: γ = 1.07, Σ0 = 18 g/cm2, Rc = 28 AU, amax0 = 0.4 cm, bmax = −1.3. The observed images are shown in the left panels, the model images in the center panels, the residuals in the right panels. The positive and negative contour levels are spaced by 3σ (starting from −3σ) and are the same in all the panels. The synthesized beam FWHM is represented as a gray ellipse in the bottom-left corner of each map.
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