Images of the torus models at 12 μm as used for our size determinations. Top row: full hydrodynamical torus model (Sect. 3.1); bottom row: clumpy torus model (Sect. 3.2); left panels: Seyfert 1 (i = 0°) case; right panels: Seyfert 2 (i = 90°) case. For the example images shown here, a bolometric luminosity of L_AD = 4.6 × 10³⁷   W and a distance of D = 45   Mpc were used for both models, in order to reach comparable sizes and intensities. All images are plotted with the same intensity range and a square root colour scale.