### Abstract

The radiative evolution of the relative orientations of the spin and orbital angular momentum vectors S_{1}, S_{2} 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.

Original language | English |
---|---|

Article number | 024007 |

Pages (from-to) | 1-6 |

Number of pages | 6 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 62 |

Issue number | 2 |

Publication status | Published - Jul 15 2000 |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Nuclear and High Energy Physics
- Mathematical Physics
- Physics and Astronomy (miscellaneous)

### Cite this

**Second post-Newtonian radiative evolution of the relative orientations of angular momenta in spinning compact binaries.** / Gergely, L.

Research output: Contribution to journal › Article

}

TY - JOUR

T1 - Second post-Newtonian radiative evolution of the relative orientations of angular momenta in spinning compact binaries

AU - Gergely, L.

PY - 2000/7/15

Y1 - 2000/7/15

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=18144432115&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18144432115&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:18144432115

VL - 62

SP - 1

EP - 6

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 2

M1 - 024007

ER -