Cosmological stretching of perturbations on a cosmic string
arXiv:gr-qc/0312101 · doi:10.1088/1475-7516/2004/05/003
Abstract
We investigate the effects of cosmological expansion on the spectrum of small-scale structure on a cosmic string. We simulate the evolution of a string with two modes that differ in wavelength by one order of magnitude. Once the short mode is inside the horizon, we find that its physical amplitude remains unchanged, in spite of the fact that its comoving wavelength decreases as the longer mode enters the horizon. Thus the ratio of amplitude to wavelength for the short mode becomes larger than it would be in the absence of the long mode.
arXiv comment11 pages, 5 postscript figures
References in corpus (9)
- Cosmic strings
- Origin and Propagation of Extremely High Energy Cosmic Rays
- Cosmic String Production Towards the End of Brane Inflation
- Gravitational wave bursts from cosmic strings
- Quantitative String Evolution
- Extending the Velocity-dependent One-scale String Evolution Model
- Gamma ray bursts from superconducting cosmic strings
- On the size of the smallest scales in cosmic string networks
- Gravitational Radiation and the Small-Scale Structure of Cosmic Strings