Authors: Antoine Klein, Philippe Jetzer
Date: 12 May 2010
Abstract: We compute here the spin-orbit and spin-spin couplings needed for an accurate computation of the phasing of gravitational waves emitted by comparable-mass binaries on eccentric orbits at the second post-Newtonian (PN) order. We use a quasi-Keplerian parametrization of the orbit free of divergencies in the zero eccentricity limit. We find that spin-spin couplings induce a residual eccentricity for coalescing binaries at 2PN, of the order of $10ˆ{-4}$-$10ˆ{-3}$ for supermassive black hole binaries in the LISA band. Spin-orbit precession also induces a non-trivial pattern in the evolution of the eccentricity, which could help to reduce the errors on the determination of the eccentricity and spins in a gravitational wave measurement.
1005.2046
(/preprints)
2010-05-17, 19:27
[edit]
© M. Vallisneri 2012 — last modified on 2010/01/29
Tantum in modicis, quantum in maximis