Mass profile of the lens model. The blue and red solid curves show the profiles when adopting the NE and SW BCGs as central points, respectively. The mass profiles are given in dimensionless κ units assuming a source at z = 3. The dashed line is a gNFW profile with parameters γ = 0.5, α = 2.5, β = 3, and scale radius r_s = 80 kpc. The inset shows the integrated mass as a function of radius in units of 10¹⁴ M_⊙, and for the same three profiles shown in the larger plot. The black dashed line is the integrated profile when the center is chosen as the middle point between the two BCG galaxies (RA = 4^h16^m08.428^s, Dec = −24° 04′21.0″). For comparison, we show as light blue and orange the profiles from Bergamini et al. (2023).