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Fig. 9


Top left: burn law a in rad2/m4 calculated using the images at 1443, 1465, 1515, 1630, and 6600 MHz smoothed with a FWHM Gaussian of 2.9. The image is derived from a fit of FPOL as a function of λ4 following the Eq. (5). The color range is from 500 to 1300 rad2/m4. Contours refer to the total intensity image at 1443 MHz. The radio contours are drawn at 3σI and the rest are spaced by a factor of 2. Top right: histogram of the Burn law a distribution. Bottom: plots of fractional polarization FPOL as a function of λ4 at four different source locations.

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