Waveforms for Gravitational Radiation from Cosmic String Loops

Details Waveforms for Gravitational Radiation from Cosmic String Loops Waveforms for Gravitational Radiation from Cosmic String Loops

2000-09-26

arxiv.org/abs/gr-qc/0009091v1

Phys.Rev. D63 (2001) 063507

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pages, 6 figures, Revtex

Scientific paper

10.1103/PhysRevD.63.063507

We obtain general formulae for the plus- and cross- polarized waveforms of gravitational radiation emitted by a cosmic string loop in transverse, traceless (synchronous, harmonic) gauge. These equations are then specialized to the case of piecewise linear loops, and it is shown that the general waveform for such a loop is a piecewise linear function. We give several simple examples of the waveforms from such loops. We also discuss the relation between the gravitational radiation by a smooth loop and by a piecewise linear approximation to it.

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