Distribution of mass, gas, and galaxies in SL2S J02140-0535, as reflected by the total mass derived from the combined lensing and dynamics analysis (magenta), the adaptively smoothed i-band luminosity of group galaxies (yellow), and the surface brightness from XMM  observations (blue). The lensing mass contours (magenta lines) correspond to projected surface densities of 0.2 × 10⁹, 1.2 × 10⁹, and 7.4 × 10⁹ M_⊙ arcsec^-2. The size of the image is 1.5 × 1.5 Mpc.