Characterization of the gravitational wave emission of three black holes

We study gravitational wave emission of three compact objects using post Newtonian (PN) equations of motions derived from the Arnowitt Deser Misner Hamilton formulation, where we include (for the first time in this context) terms uo to 2.5 PN order. We perform numerical simulations of a hierarchical configuration of three compact bodies in which a binary system is perturbed by a third, lighter body initially far away from the binary.