Effects of selected dust and disk shape parameters on continuum visibilities at 1.6 μm (blue), 10 μm (green) and 1.3 mm (red). Distance is 140 pc. The squared visibility V² (fraction of correlated flux) is shown as function of baseline [cm] /1000 /λ [cm] for baseline orientation along the major axis of the disk on the sky. The abscissa on top is the corresponding maximum observable spatial scale [cm] = 0.6·d [cm] /baseline [kλ] /1000. The full lines show the reference model, identical in every part figure. The dashed and dotted lines correspond to the changed parameter values as annotated. Non-depicted parameters have less influence on the visibilities, for example a_max. See Table 3 for explanations of parameter symbols.