Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1997-10-14
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
3 pages, LaTeX, 2 figures, Proceedings of the 8th Marcel Grossmann Meeting, Jerusalem, June 1997 (World Scientific); mprocl.st
Scientific paper
We present two of our efforts directed toward the numerical analysis of neutron star mergers, which are the most plausible sources for gravitational wave detectors that should begin operating in the near future. First we present Newtonian 3D simulations including radiation reaction (2.5PN) effects. We discuss the gravitational wave signals and luminosity from the merger with/without radiation reaction effects. Second we present the matching problem between post-Newtonian formulations and general relativity in numerical treatments. We prepare a spherical, static neutron star in a post-Newtonian matched spacetime, and find that discontinuities at the matching surface become smoothed out during fully relativistic evolution if we use a proper slicing condition.
Shinkai Hisa-aki
Suen W.-M.
Swesty Frank Douglas
Tobias Malcolm
Wang Edward Y. M.
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