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Tail-induced spin-orbit effect in the gravitational radiation of compact binaries

2011; American Physical Society; Volume: 84; Issue: 6 Linguagem: Inglês

10.1103/physrevd.84.064041

1550-7998

Luc Blanchet, Alessandra Buonanno, Guillaume Faye,

Cosmology and Gravitation Theories

Gravitational waves contain tail effects which are due to the backscattering of linear waves in the curved space-time geometry around the source. In this paper we improve the knowledge and accuracy of the two-body inspiraling post-Newtonian (PN) dynamics and gravitational-wave signal by computing the spin-orbit terms induced by tail effects. Notably, we derive those terms at 3PN order in the gravitational-wave energy flux, and 2.5PN and 3PN orders in the wave polarizations. This is then used to derive the spin-orbit tail effects in the phasing through 3PN order. Our results can be employed to carry out more accurate comparisons with numerical-relativity simulations and to improve the accuracy of analytical templates aimed at describing the whole process of inspiral, merger, and ringdown.