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Fig. 11.


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X-ray, tSZ, and radio images of the relic region. The same dashed line in all plots has a length of 2 Mpc. The line is slightly shifted from the relic outer edge and the shock front for clarity. The relic outer edge appears to be aligned with the surface brightness edges in X-rays and tSZ (although the images, unlike the radial profiles, are too noisy to draw a firm conclusion). Beyond the brightest portion of the relic, both tSZ and X-rays show a faint extended emission and edge to the NW, approximately aligned with the relic edge. If this is a continuation of the shock, then its shape is far from a spherical surface centered at Coma. For a discussion of radio emission in this region, which is affected by the bright source Coma-A/NGC 4827, we refer, for instance, to Brown & Rudnick (2011), Bonafede et al. (2022). On the SW side, an extension in the radial direction is seen in the tSZ and X-ray images, hinting at the presence of a gaseous filament along the direction towards A1367.

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