Open Access
Fig. 13.
NGC 4013 combined (C- and D-configuration) C-band polarized intensity contours from Fig. 12 with contours at 2.5, 4, 8 and 16σ levels on SDSS color image (retrieved via Aladin sky atlas, https://aladin.u-strasbg.fr). Regions I, II, and III discussed in the text are marked in yellow.
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