Polarized intensity contour map at 4.86 GHz with intrinsic (Faraday-corrected) magnetic field orientation, superimposed on the Hα image (from Tüllmann et al. 2000). Contours are plotted at levels (3, 5, 8, 12, 20 and 30)  ×  7 μJy/b.a. (rms). Vectors are proportional to the degree of polarization (10″ corresponds to 10%). Vector plotting was suppressed below 3σ rms level (in both total and polarized emission). The resolution is 16″ HPBW.