Two-dimensional Δχ² contours for the resulting free parameters when we used the X-C/MIR-C baseline model before (dotted lines) and after (solid lines) linking the half-opening angle and torus angular width to fit ESO 138-G01 spectra. The (dotted and solid) red, green, and blue contours mark the 1σ, 2σ, and 3σ errors, respectively. The black circles and blue stars are the resulting values for each parameter before and after linking the half-opening angle and torus angular width, respectively. These contours for the rest of the sources are available in this URL.