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Fig. 15.

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Rotation measure map of 4C 70.19 between 4.85 and 8.35 GHz. The map is overlaid with contours of the total radio emission map at 4.85 GHz (Fig. 6) convolved to the resolution of the 8.35 GHz map from Fig. 7. The contour levels are (3, 6, 9, 16, 25, 32, 64, and 96) × 3.57 mJy beam−1. The beam size of 82″ is presented in the upper left corner of the image.

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