Proposed New Test of Spin Effects in General Relativity

Details Proposed New Test of Spin Effects in General Relativity Proposed New Test of Spin Effects in General Relativity

2004-09-27

arxiv.org/abs/gr-qc/0409101v1

Phys.Rev.Lett. 93 (2004) 081103

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1103/PhysRevLett.93.081103

The recent discovery of a double-pulsar PSR J0737-3039A/B provides an opportunity of unequivocally observing, for the first time, spin effects in general relativity. Existing efforts involve detection of the precession of the spinning body itself. However, for a close binary system, spin effects on the orbit may also be discernable. Not only do they add to the advance of the periastron (by an amount which is small compared to the conventional contribution) but they also give rise to a precession of the orbit about the spin direction. The measurement of such an effect would also give information on the moment of inertia of pulsars.

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