Distribution of azimuthal symmetric excess β (as defined in Eq. (12)) as a function of the halo mass, inside clusters (R <  R₂₀₀) in the top panel and at cluster peripheries in (1 <  R[R₂₀₀]< 2) in the bottom panel. The mean profiles of β and their errors are shown in solid lines. The colours of points and lines represent different matter components: dark matter (black), hot gas (red), WHIM (orange), and all gas (light brown). In each panel, the number of objects used to compute the average in each bin of the x-axis (shown as grey dotted lines) is written above the figures in grey.