Fig. 2
Radio map of SN1006 at 1.4 GHz with the four regions in which the surface brightness of the remnant was averaged for the purpose of computation of the four morphological parameters A = RIMmax/RIMmin, C = center/RIMmax, Rmax = RIMmax1/RIMmax2 and θD, the aperture angle between the limb maxima. Adapted from Petruk et al. (2009b).
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