Left: instrument independent, absorption corrected, and background subtracted s_X profiles of Chandra (green), XMM-Newton (blue), and eROSITA (red) in the energy band 0.5–2.0 keV. The blue, red, and black horizontal dashed lines are the CXB levels of XMM-Newton, eROSITA, and eROSITA with XMM-Newton defined CXB region, respectively. Black points are the CXB corrected XMM-Newton s_X. The various radii are plotted in brown. Right: XMM-Newton S_x profiles in different directions of the Northern Clump using the box annuli setup (top) and the relative differences with respect to the average surface brightness (bottom). The grey shaded areas in both plots are the lσ confidence region of the average S_x The various radii are plotted in brown. The CXB and QPB level are plotted in orange and cyan dashed lines.