Gravitational-Wave Stochastic Background from Kinks and Cusps on Cosmic Strings

Details Gravitational-Wave Stochastic Background from Kinks and Cusps on Cosmic Strings Gravitational-Wave Stochastic Background from Kinks and Cusps on Cosmic Strings

2010-04-06

arxiv.org/abs/1004.0890v2

Phys.Rev.D81:104028,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

24 pages, 3 figures

Scientific paper

10.1103/PhysRevD.81.104028

We compute the contribution of kinks on cosmic string loops to stochastic background of gravitational waves (SBGW).We find that kinks contribute at the same order as cusps to the SBGW.We discuss the accessibility of the total background due to kinks as well as cusps to current and planned gravitational wave detectors, as well as to the big bang nucleosynthesis (BBN), the cosmic microwave background (CMB), and pulsar timing constraints. As in the case of cusps, we find that current data from interferometric gravitational wave detectors, such as LIGO, are sensitive to areas of parameter space of cosmic string models complementary to those accessible to pulsar, BBN, and CMB bounds.

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