Colorscale of the depolarization distribution (6.2 cm-Merged+3.6 cm-Eff) over Effelsberg λ 3.6 cm I_pol contours, with intrinsic magnetic field. Length of the vectors is proportional to the Effelsberg λ 3.6 cm polarization degree (1″ Ӕ 1%). These vectors were clipped at the 2σ level of the polarized intensity maps (at both frequencies) and where  | RM |     ≥    350   rad/m². The contour levels correspond to (350   μJy/beam)·( − 3,3,6,12,24,48,96,192,384). All values are from the data at an angular resolution of 85″ HPBW. Contour levels of the Effelsberg λ 3.6 cm polarized emission are given by (62   μJy/beam)·( − 3,3,8,16,24).