Second post-Newtonian radiative evolution of the relative orientations of angular momenta in spinning compact binaries

László Á. Gergely
Phys. Rev. D 62, 024007 – Published 14 June 2000
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Abstract

The radiative evolution of the relative orientations of the spin and orbital angular momentum vectors S1,S2 and L, characterizing a binary system on an eccentric orbit is studied up to the second post-Newtonian order. As an intermediate result, all Burke-Thorne type instantaneous radiative changes in the spins are shown to average out over a radial period. It is proved that spin-orbit and spin-spin terms contribute to the radiative angular evolution equations, while Newtonian, first and second post-Newtonian terms together with the leading order tail terms do not. In complement to the spin-orbit contribution, given earlier, the spin-spin contribution is computed and split into two-body and self-interaction parts. The latter provide the second post-Ne wtonian order corrections to the 3/2 order Lense-Thirring description.

  • Received 3 November 1999

DOI:https://doi.org/10.1103/PhysRevD.62.024007

©2000 American Physical Society

Authors & Affiliations

László Á. Gergely

  • Laboratoire de Physique Théorique, Université Louis Pasteur, 3-5 rue de l’Université 67084 Strasbourg, France
  • KFKI Research Institute for Particle and Nuclear Physics, Budapest 114, P.O. Box 49, H-1525 Hungary

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Issue

Vol. 62, Iss. 2 — 15 July 2000

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