Top panel: the projected mass profile M_p(R) from the joint MAMPOSSt+Caustic pNFW solution (solid yellow line) within 1σ confidence region (hatched gray region), and from the lensing analysis of U12 (dashed white line: strong lensing analysis; dash-dotted line: weak lensing analysis, after subtraction of the contribution of the large-scale structure along the line-of-sight) within 1σ confidence region (hatched magenta regions). The black triple-dots-dashed line is the pNFW mass profile from U12’s analysis of Chandra data. The vertical dashed line indicates the location of r_200,U in both panels. Bottom panel: the ratio between the kinematic and lensing determinations of M_p(R). The white dashed and dash-dotted (resp. solid yellow) line represents the ratio obtained using the non parametric determination (resp. the pNFW parametrization) of the lensing M_p(R). The pink hatched region represents the confidence region of this ratio for the non parametric M_p(R) lensing solution. The horizontal black dotted line indicates the value of unity.