Extended Data Figure 1: Radial X-ray emissivity profiles in the filaments and in the cluster.
From: Warm–hot baryons comprise 5–10 per cent of filaments in the cosmic web

Shown are XMM-Newton/EPIC surface-brightness profiles (SX); black, obtained by masking the filaments; colours, surface brightness in the sectors NW (northwest, position angle 10°–70°), E (east, 150°–180°) and S (south, 260°–300°). Uncertainties (error bars) are given at the 1σ level.