Example of the results of the two analyses adopted for the mass reconstruction. (Top and middle panels, left) Gas density profile as obtained from the deprojection of the surface brightness profile compared to the one recovered from the deprojection of the normalizations of the thermal model in the spectral analysis; observed temperature profile with overplotted the best-fit model (from Method 1). (Top and middle panels, right) Data (diamonds) and models (dashed lines) of the projected gas density squared and temperature (from Method 2). (Bottom, left) Constraints in the r_s − c plane with the prediction (in green) obtained by imposing the relation from M08. (Bottom, right) Gas mass fraction profile obtained from Method 1 (gray) and Method 2 (red).