Face-on major-axis profiles for the thin disk showing the deviations from pure exponentials due to dust effects. Solid upper curves are for the face-on dusty images, the corresponding exponential fits are represented by dashed curves, while the solid lower curves denote the residuals. The upper plots correspond to the 912 Å UV wavelength and (from left to right), while the lower plots correspond to the 2800 Å UV wavelength and the same values of . The fits were done by leaving the geometrical coordinates of the intensity peak as free parameters. The cuts were taken parallel and perpendicular with the major-axis of the thin disk dusty images, through their intensity peaks.