Radial distance-radial velocity phase-space diagram of the ionised gas using the full material in the zoom-in box (top left), the region of filament material (top right), the region of outflowing material (bottom left) and the region of collapsing material (bottom right). In the region of filament material, most of the gas has a negative radial velocity of around −1000 km s⁻¹, indicating that the gas is not slowed down while entering the ICM, which is typical of a filament. Then, in the region of collapsing material, most of the gas also has a negative radial velocity but this time of around −500 km s⁻¹, meaning that in this region the gas is slowed down while being heated, which is the case for a spherical collapse. Finally, in the region of outflowing material, most of the gas has a positive radial velocity, and we thus have an outflow.