Numerical models of spin-orbital coupling in neutron star binaries

P. Marronetti, S. L. Shapiro

Research output: Chapter in Book/Report/Conference proceedingChapter


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.

Original languageEnglish (US)
Title of host publicationThe Tenth Marcel Grossmann Meeting
Subtitle of host publicationOn Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
PublisherWorld Scientific Publishing Co.
Number of pages3
ISBN (Electronic)9789812704030
ISBN (Print)9789812566676
StatePublished - Jan 1 2006

ASJC Scopus subject areas

  • General Physics and Astronomy


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