Talk detail

Participant	d'Ambrosi, Giuseppe
Institution	Nikhef - Science Park 105 - Amsterdam - Noord Holland - Netherland

Session	BH4	Accepted		Order	Time
Talk	Oral abstract	Title	Ballistic orbits for gravitational waves
Coauthors
Abstract	Among the sources of gravitational waves worth modelling there are Extreme Mass Ratio binaries. In order to understand the dynamics during their coalescence, we describe a special class of ballistic geodesics in Schwarzschild space-time. These orbits are in 1-1 correspondence, and completely degenerate in energy and angular momentum, with stable circular orbits. From these special orbits we derive analytic expressions for the source terms in the Regge-Wheeler and Zerilli-Moncrief radiative equations for a point-particle, and compute the gravitational waves emitted during the infall in an Extreme Mass Ratio black-hole binary coalescence. Results of these calculations and the waveforms obtained are then discussed, showing limits and applicability of the method."
Pdf file

Session	GW1	Accepted		Order	Time
Talk	Poster abstract	Title	Ballistic orbits for gravitational waves
Coauthors
Abstract	Among the sources of gravitational waves worth modelling there are Extreme Mass Ratio binaries. In order to understand the dynamics during their coalescence, we describe a special class of ballistic geodesics in Schwarzschild space-time. These orbits are in 1-1 correspondence, and completely degenerate in energy and angular momentum, with stable circular orbits. From these special orbits we derive analytic expressions for the source terms in the Regge-Wheeler and Zerilli-Moncrief radiative equations for a point-particle, and compute the gravitational waves emitted during the infall in an Extreme Mass Ratio black-hole binary coalescence. Results of these calculations and the waveforms obtained are then discussed, showing limits and applicability of the method.
Pdf file