Left panels: 2D X-ray (in the [0.8–1.2] keV range, in red, and radio emission (at 260 MHz, blue curves) profiles for the three halos in our volume at z = 0.05, showing the median (thick lines) and the 33 − 66% and 5 − 95% percentile ranges (shaded areas). The horizontal axis gives the angular distance from the centre of each cluster. The horizontal lines give the reference X-ray (red) and the radio (blue) detection threshold considered in the paper, while the vertical grey lines give the location of R₁₀₀ for each cluster. Right panels: radial profiles of the surface fraction that can be detected in X-ray (red), in radio (blue), or by both (black) for the same objects.