Dependence of the visibilities and phases of model 5 (see Tables 3 and A.1) on both the wavelength across the Brγ line and the PA of the model on the sky for an inclination angle of i = 20° and clockwise motion of the disk wind (the corresponding anti-clockwise plots are shown in Fig. A.5). Top: PAs from 0 to 80° in steps of 10° from left to right; bottom: PAs = 90 to 170°. Closest agreement between observation and model is obtained for PAs of 65, 120, 245, and 300°, as discussed in Sect. A.3.