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Fig. 1

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Map of the integrated Si line velocity in the line of sight Vz (obtained in Godinaud et al. 2023) and the segmentation of the SNR for spectral extraction used in this study. The segmentation is optimised to achieve Vz homogeneity in each region. The region number is a convention which goes from south to north. The forward shock, seen in X-ray synchrotron emission, is shown in green contours.

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