Binary–Black-Hole Merger: Symmetry and the Spin Expansion
Binary–Black-Hole Merger: Symmetry and the Spin Expansion
We regard binary-black-hole (BBH) merger as a map from a simple initial state (two Kerr black holes, with dimensionless spins a and b) to a simple final state (a Kerr black hole with mass m, dimensionless spin s, and kick velocity k). By expanding this map around a=b=0 and applying …