⟨RM⟩, σ_RM, and F_p as a function of the projected distance from the cluster centre. The known sources are represented with the coloured pentagons, whereas the other radio galaxies (listed in Table 5) with the black dots. Panel (a): ⟨RM⟩ radial profile. Panel (b): σ_RM radial profile. Panel (c): F_p radial profile. The errors are computed following Eqs. (2) and (3). Reference distances, such as R_core = 425.60 ± 20.03 kpc (Henry & Briel 1996) and R₂₀₀ = 2.16 ± 0.08 Mpc (Munari et al. 2014), are reported with the dashed lines to discriminate the central from the peripheral regions of the cluster.