Stochastic Gravitational Wave Background from Light Cosmic Strings
| dc.creator | DePies, Matthew R. | |
| dc.creator | Hogan, Craig J. | |
| dc.date | 2007-02-13 | |
| dc.date | 2007-05-11 | |
| dc.date.accessioned | 2026-07-07T11:00:50Z | |
| dc.date.available | 2026-07-07T11:00:50Z | |
| dc.description | Spectra of the stochastic gravitational wave backgrounds from cosmic strings are calculated and compared with present and future experimental limits. Background spectra are calculated numerically for dimensionless string tensions G mu/c^2 between 10^{-7} and 10^{-18}, and initial loop sizes as a fraction of the Hubble radius, alpha, from 0.1 to 10^{-6}. The spectra of the cosmic string backgrounds are compared with current millisecond pulsar limits and LISA sensitivity curves. For models with large stable loops (alpha=0.1), current pulsar-timing limits exclude G mu/c^2>10^{-9} and within the range of current models based on brane inflation. LISA may detect a background from strings as light as G mu/c^2 10^{-16}, corresponding to field-theory strings formed at roughly 10^{11} GeV. | |
| dc.description | 14 pgs, 7 fig, small text addition and reference added, accepted by Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0702335 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0702335 | |
| dc.identifier | Phys.Rev.D75:125006,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.125006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/187783 | |
| dc.subject | Astrophysics | |
| dc.title | Stochastic Gravitational Wave Background from Light Cosmic Strings | |
| dc.type | text |