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Hydrodynamic Evolution of Coalescing Compact Binaries

Published online by Cambridge University Press:  25 May 2016

Frederic A. Rasio  and
Stuart L. Shapiro
Frederic A. Rasio
Affiliation:
Institute for Advanced Study, Princeton, NJ 08540, USA
Stuart L. Shapiro
Affiliation:
Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA

Abstract

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In addition to their possible relevance to gamma-ray bursts, coalescing binary neutron stars have long been recognized as important sources of gravitational radiation that should become detectable with the new generation of laser interferometers such as LIGO. Hydrodynamics plays an essential role near the end of the coalescence when the two stars finally merge into a single object. The shape of the corresponding burst of gravitational waves provides a direct probe into the interior structure of a neutron star and the nuclear equation of state. The interpretation of the gravitational waveform data will require detailed theoretical models of the complicated three-dimensional hydrodynamic processes involved. Here we review the results of our recent work on this problem, using both approximate quasi-analytic methods and large-scale numerical hydrodynamics calculations on supercomputers. We also discuss briefly the coalescence of white-dwarf binaries, which are also associated with a variety of interesting astrophysical phenomena.

Type
1 Binary Evolution
Information
Symposium - International Astronomical Union , Volume 165: Compact Stars in Binaries , 1996 , pp. 17 - 28
Copyright
Copyright © Kluwer 1996 

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