CM4 - Black Hole Collisions |
Speaker_ |
Nagar, Alessandro |
Co-autors |
T. Damour and A. Tartaglia |
Talk _ |
Transition from inspiral to plunge in binary black holes systems in the extreme |
Abstract _ |
using black hole perturbation theory and Effective-One-Body ideas for the radiation-reaction force, we completely determine the gravitational wave signature for the transition inspiral-plunge-ringdown for a binary (non-spinning)black hole system in the extreme mass ratio. We discuss the features of gravitational waveforms up to l=4 multipole, energy, angular momentum and linear momentum losses. We focus on the mechanism of excitation of the black hole Quasi-Normal-Modes and propose analytical methods to well reproduce the smooth transition between the inspiral and the ringdown phase of the gravitational wave signal |