Dependence of the model visibility on the baseline for an AGN at 15 Mpc distance and a sublimation radius (=near-IR reverberation radius) of 0.025 pc. Each column represents simulation results for a different radial power law index a =  −0.5,  −1.0,  −1.5, and  −2.0, respectively, (top: type 1 AGN at i = 0°; bottom: type 2 AGN at i = 90°) with constant N₀ = 7.5 and R_out = 150. In each panel, we show visibility curves at 2.2 (red-dashed lines), 4.0 (green-dotted lines), 8.5 (light-blue solid lines), and 12.5μm (dark-blue solid lines). The different lines per wavelength reflect the position-angle dependence of the visibility in steps of 10° and represent one particular random distribution of clouds.