Spinning-black-hole scattering and the test-black-hole limit at second post-Minkowskian order
Spinning-black-hole scattering and the test-black-hole limit at second post-Minkowskian order
Recently, the gravitational scattering of two black holes (BHs) treated at the leading order in the weak-field, or post-Minkowskian (PM), approximation to general relativity has been shown to map bijectively onto a simpler effectively one-body process: the scattering of a test BH in a stationary BH spacetime. Here, for BH …