Lumpy cosmic strings
arXiv:1502.04438
Abstract
We outline a model of abelian-Higgs strings with variable scalar and vector core radii. In general, the functions determining the time and position-dependent core widths may be expressed as arbitrary left or right movers, of which the usual constant values are a particular solution. In this case the string may carry momentum, even if the embedding of its central axis remains fixed, and the resulting objects resemble "necklaces". Some possible astrophysical applications of lumpy strings, including as potential engines for anomalous gamma ray bursts, are also discussed.
24 pages, no figures
References in corpus (6)
- CMB power spectrum contribution from cosmic strings using field-evolution simulations of the Abelian Higgs model
- 511 KeV photons from superconducting cosmic strings
- Cosmic Necklaces from String Theory
- CMB power spectrum of Nambu-Goto cosmic strings
- Variation of fundamental constants in space and time: theory and observations
- Effects of cosmic strings with delayed scaling on CMB anisotropy