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Title:
Hydrodynamical evolution of coalescing binary neutron stars
Authors:
Rasio, Frederic A.; Shapiro, Stuart L.
Affiliation:
AA(Cornell Univ., Ithaca, NY), AB(Cornell Univ., Ithaca, NY)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 401, no. 1, p. 226-245. (ApJ Homepage)
Publication Date:
12/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
BINARY STARS, COALESCING, HYDRODYNAMICS, NEUTRON STARS, STELLAR EVOLUTION, CIRCULAR ORBITS, DYNAMIC STABILITY, GRAVITATIONAL WAVES, POLYTROPIC PROCESSES
DOI:
10.1086/172055
Bibliographic Code:
1992ApJ...401..226R

Abstract

The hydrodynamics of the final merging of two neutron stars and the corresponding gravitational wave emission is studied in detail. Various test calculations are presented, including the compressible Roche and Darwin problems and the head-on collision of two polytropes. A complete coalescence calculation is presented for the simplest case of two identical neutron stars, represented by Gamma = 2 polytropes, in a circular orbit, with their spins aligned and synchronized with the orbital rotation.

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