AGN jets and winds in polarized light: the case of Mrk 231

ABSTRACT We present the results of a multifrequency, multiscale radio polarimetric study with Very Large Array (VLA) Seyfert 1 galaxy and BALQSO, Mrk 231. detect complex total polarized intensity features in source. Overall, images indicate presence broad, one-sided, curved outflow towards south which consists weakly collimated jet poloidal inferred magnetic fields, inside broader magnetized ‘wind’ or ‘sheath’ component toroidal fields. The model kpc-scale jet/lobe 231 is strengthened by its C-shaped morphology, steep spectral index throughout, complexities field structures, self-similar structures observed on 10-parsec-scale literature. may comprise both nuclear starburst (close to core) active galactic nuclei winds, where latter maybe primary contributor. Moving away from core, also outer layers (or ‘sheath’) broadened jet. value (weakly collimated) production efficiency, ηjet ∼ 0.01, consistent estimates composite wind appears be low-power matter-dominated, oriented at small angle our line sight.