Central slice of the cube density from simulations. Moving towards the density cube, the average density of the medium initially increases, indicating the presence of the cluster pair, then starts to decrease until reaching zero in the last slice, showing the ending regions of the cluster pair. We therefore selected the central slice of the cube as the best indicator of the density distribution. The density contours are at 1, 1.24, 2.61, 10.3, and 53.5 × 10⁻²⁸ g cm⁻³. The region selected as the bridge region in the simulation is highlighted in red. Every pixel is ∼16 kpc long.