Total intensity contour map with apparent polarization B-vectors at 4.86 GHz (left) and 1.49 GHz (right). Both maps are superimposed on the Hα image (from Tüllmann et al. 2000). Contours are plotted at levels (3, 5, 8, 12, 20, 30, 50, 80, 120, 200, 300 and 500)  ×  10 and 60 μJy/b.a., respectively (rms levels at corresponding frequencies). Vectors are proportional to the polarized intensity (10″ corresponds to 50 μJy/b.a.) and indicate apparent B-orientation. The resolution is 16″ HPBW in both maps.