X-ray radial profiles along the SW direction. Top left: surface brightness profile along the SW (black) and average surface brightness profile (blue). Top right: ratio of the X-ray surface brightness profile toward the SW to the average X-ray surface brightness profile. Middle left: temperature profile along the SW (black) and average temperature profile (blue). Middle right: ratio of the temperature profile toward the SW to the average temperature profile. Bottom left: metallicity profile along the SW. Bottom right: ratio of the metallicity profile toward the SW to the average metallicity profile. The average metallicity profile can be seen in Fig. 12. The black stripe shows the extent of the SW depression as constrained from the X-ray surface brightness ratio profile. The vertical blue line shows the position of the SW edge as determined from the X-ray residual map (Fig. 7).