TY - JOUR

T1 - Strong-field point-particle limit and the equations of motion in the binary pulsar

AU - Futamase, T.

N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

PY - 1987

Y1 - 1987

N2 - We construct an asymptotic approximation in general relativity to a binary system of two neutron stars by taking a point-particle limit along a sequence of spacetimes. A detailed calculation of the near-zone field is performed in radiation-reaction order. We calculate the rate of change of Newtonian energy and the angular momentum. The result coincides with the standard formula. The equation of spin precession is also calculated and the same result as for weak gravity is obtained. We thus extend the strong equivalence principle for bodies with strong internal gravity to the generation of gravitational radiation and the spin precession.

AB - We construct an asymptotic approximation in general relativity to a binary system of two neutron stars by taking a point-particle limit along a sequence of spacetimes. A detailed calculation of the near-zone field is performed in radiation-reaction order. We calculate the rate of change of Newtonian energy and the angular momentum. The result coincides with the standard formula. The equation of spin precession is also calculated and the same result as for weak gravity is obtained. We thus extend the strong equivalence principle for bodies with strong internal gravity to the generation of gravitational radiation and the spin precession.

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U2 - 10.1103/PhysRevD.36.321

DO - 10.1103/PhysRevD.36.321

M3 - Article

AN - SCOPUS:33744617439

VL - 36

SP - 321

EP - 329

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 2

ER -