Coalescence of Binary Neutron Stars
Ken-ichi Oohara (Niigata Univ.), Takashi Namamura(YITP, Kyoto Univ.)
TL;DR
This paper discusses numerical simulations of binary neutron star coalescence, focusing on the final milliseconds, using Newtonian, post-Newtonian, and recent 3D general relativity codes to understand gravitational wave sources.
Contribution
It presents new simulation results of neutron star mergers with advanced 3D general relativity codes, enhancing understanding of gravitational wave signals.
Findings
Simulations capture the last three milliseconds of coalescence.
Development of a 3D GR code for neutron star mergers.
Insights into gravitational wave signatures from neutron star coalescence.
Abstract
The most important sources for laser-interferometric gravitational-wave detectors like LIGO or VIRGO are catastrophic events such as coalescence of a neutron-star binary. The final phase, or the last three milliseconds, of coalescence is considered. We describe results of numerical simulations of coalescing binary neutron stars using Newtonian and post-Newtonian hydrodynamics code and then discuss recent development of our 3D GR code.
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Taxonomy
TopicsPulsars and Gravitational Waves Research