Fig. 2

Effelsberg Stokes I map at λ 6.2 cm of NGC 4631 with apparent magnetic field orientation. The length of the vectors is proportional to the polarized intensity (1″ Ӕ 56μJy/beam). The colorscale corresponds to the flux density in mJy/beam. The half-power beam width is 147″ and the rms noise (σ) is 400 μJy/beam. Contour levels are given by σ·( − 3,4,8,16,32,64,128,256,512,1024,2048).
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