A pan-chromatic view of XMMU J1230.3+1339 seen through projected surface density maps of different physical quantities within the cluster’s R₂₀₀ region (outer dashed circle). All panels show the same 4.8′  ×  4.8′ sky region in standard orientation (North is up, East to left), the nominal cluster center (central cross) and R₅₀₀ (inner dashed circle) are also indicated. Top left a): density map of color-selected red galaxies (log-spaced contours). Top right b): Chandra X-ray surface brightness map (log-spaced contours). Bottom left c): total z′-band light distribution map (linearly-spaced contours). Bottom right d): weak lensing mass density map (linearly-spaced contours).