Radial X-ray surface brightness profile across the western radio relic in the 0.3–2.0 keV band using XMM-Newton observations. The profile is corrected for vignetting and background level, and point sources have been removed. The solid blue curve is the best-fit model and the gray dashed line is the VLA scaled radio emission. The data were rebinned to reach a minimum S/N of four and C-stat/d.o.f. ∼ 1.2.