Figure 7: Left panel: Embedding diagram of the AH of the perturbed black string at different stages
of the evolution. The light (dark) lines denote the first (last) time from the evolution segment shown
in the corresponding panel. Right panel: Dimensionless Kretschmann scalar at the centre of
mass of a binary BH system as a function of the (areal) coordinate separation between the two BHs
in a scattering, in units of . Images reproduced with permission from (left) [511]
and from (right) [587], copyright by APS.