Overdensity (top left), temperature (top right), radial velocity (bottom left), and the ratio of bulk speed to sound speed (bottom right) of the gas around filaments F1 in a planar cross-section of size (24 Mpc)² ≈ (8.5r₂₀₀)², crossing through the cluster centre. The grey area on the right-hand side of the figures marks regions within the cluster boundary. The white line marks the direction approximately parallel to the shock normal.