Fig. 4.
Colorscale of the polarized emission of NGC 4631 at L-band (VLA D-configuration), together with the magnetic field orientation (line segments of equal length) at L-band obtained with RM-synthesis. Polarization angles were calculated at pixels where the polarized intensity is larger than 5σ. Contours correspond to the 1.57 GHz total power emission (VLA + Effelsberg; Mora-Partiarroyo et al. 2019). All data plotted have an angular resolution of 51″ FWHM. Contour levels are at 200 μJy beam−1 × (3, 6, 12, 24, 48, 96, 192, 384).
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