Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2000-11-09
Phys.Rev. D63 (2001) 127501
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages (2 columns), no figure, revtex with multicol.sty. To appear in Physical Review D
Scientific paper
10.1103/PhysRevD.63.127501
The perturbative modes propagating along an infinite string are investigated within the framework of the gauge invariant perturbation formalism on a spacetime containing a self-gravitating straight string with a finite thickness. These modes are not included in our previous analysis. We reconstruct the perturbation formalism to discuss these modes and solve the linearized Einstein equation within the first order with respect to the string oscillation amplitude. In the thin string case, we show that the oscillations of an infinite string must involve the propagation of cosmic string traveling wave.
Ishihara Hideki
Nakamura Kouji
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