Observations (left column) and polarization model (right column) of the nucleus of Cygnus A showing the total (first row) and polarized (second row) fluxes, PA (third row), and degree (fourth row) of polarization. The intrinsic (starlight-corrected) nuclear polarization (orange square) at 2.2 μm by Tadhunter et al. (2000) is shown. SED model: a self-absorbed synchrotron component (orange dotted line), a blackbody component with color temperature of 107 ± 9 K (gray dashed line), a clumpy torus model of a Type 2 AGN (green dashed line), and a starlight component (red solid line) describe the nuclear SED of Cygnus A. Polarized SED model: the combination of dichroic absorption (orange) and emission (red), and dust scattering (blue) explain the degree and PA of polarization. The total polarized flux model (black line) is estimated as the multiplication of the total flux model by the total polarization model.