Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-01-26
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, 3 figures. Submitted to the Proceedings of the "X Marcel Grossmann Meeting on General Relativity" in Rio de Janeiro,
Scientific paper
We present a new numerical scheme for solving the initial value problem for quasiequilibrium binary neutron stars allowing for arbitrary spins. We construct sequences of circular-orbit binaries of varying separation, keeping the rest mass and circulation constant along each sequence. The spin angular frequency of the stars is shown to vary along the sequence, a result that can be derived analytically in the PPN limit. This spin effect, in addition to leaving an imprint on the gravitational waveform emitted during binary inspiral, is measurable in the electromagnetic signal if one of the stars is a pulsar visible from Earth.
Marronetti Pedro
Shapiro Stuart L.
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