Comparing the inspiral of irrotational and corotational binary neutron stars

Details Comparing the inspiral of irrotational and corotational binary neutron stars Comparing the inspiral of irrotational and corotational binary neutron stars

2001-09-30

arxiv.org/abs/gr-qc/0110006v1

Phys.Rev. D65 (2002) 024016

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 5 figures, to be published in Physical Review D

Scientific paper

10.1103/PhysRevD.65.024016

We model the adiabatic inspiral of relativistic binary neutron stars in a quasi-equilibrium (QE) approximation, and compute the gravitational wavetrain from the late phase of the inspiral. We compare corotational and irrotational sequences and find a significant difference in the inspiral rate, which is almost entirely caused by differences in the binding energy. We also compare our results with those of a point-mass post-Newtonian calculation. We illustrate how the late inspiral wavetrain computed with our QE numerical scheme can be matched to the subsequent plunge and merger waveform calculated with a fully relativistic hydrodynamics code.

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