Dynamics of a string coupled to gravitational waves - Gravitational wave scattering by a Nambu-Goto straight string
General Relativity and Quantum Cosmology
2009-12-30 v2 Astrophysics
High Energy Physics - Theory
Abstract
We study the perturbative dynamics of an infinite gravitating Nambu-Goto string within the general-relativistic perturbation framework. We develop the gauge invariant metric perturbation on a spacetime containing a self-gravitating straight string with a finite thickness and solve the linearized Einstein equation. In the thin string case, we show that the string does not emit gravitational waves by its free oscillation in the first order with respect to its oscillation amplitude, nevertheless the string actually bends when the incidental gravitational waves go through it.
Keywords
Cite
@article{arxiv.gr-qc/0001015,
title = {Dynamics of a string coupled to gravitational waves - Gravitational wave scattering by a Nambu-Goto straight string},
author = {Kouji Nakamura and Akihiro Ishibashi and Hideki Ishihara},
journal= {arXiv preprint arXiv:gr-qc/0001015},
year = {2009}
}
Comments
Published in Physical Review D. Some explanations are changed to clarify our points