Intrinsic magnetic field orientation perpendicular to the LOS (B _⊥ -vectors) derived from the 25″ resolution data (VLA only). The contours show the VLA λ 3.6 cm total radio emission. The length of the vectors is proportional to the VLA λ 3.6 cm polarized intensity (1″ Ӕ 15μJy/beam). 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 (40   μJy/beam)·( − 3,3,6,12,24,48,96,192,384,522). In the electronic version the angles are color coded as shown in the colorfan in the upper-right corner.