Radio profiles across the relic at 1.9″. Left: Sectors from the 145 MHz and 3.0 GHz images (top and bottom, respectively) used to derive the profiles. Centre: Normalised 145 MHz and 3.0 GHz deconvolved surface brightness profiles (dark circles and light diamonds, respectively); solid lines represent the theoretical model, assuming a log-normal distribution of the magnetic fields (B₀ = 1 μG and σ = 1), while dot-dashed lines show the Gaussian profile. Right: Convolved spectral index profiles, with the theoretical model overlaid as a black line; vertical dotted lines delimit different regions of interest.