Total flux (normalized to the peak of emission, top), continuum linear polarization degree (middle) and polarization angle (bottom) as a function of the observer’s viewing angle, defined with respect to the symmetry axis of the model, see Fig. 9. Four different inclinations of the wind are shown : 15°, 25°, 35° and 45°. The wind is fully ionized and has an optical thickness of 1 along the outflowing direction. In gray is the polarization expected from the primary component of the SMBH binary found by our best-fit analysis.