Gravitational Radiation from Primordial Helical MHD Turbulence
Astrophysics
2009-06-23 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We consider gravitational waves (GWs) generated by primordial inverse-cascade helical magneto-hydrodynamical (MHD) turbulence produced by bubble collisions at the electroweak phase transitions (EWPT). Compared to the unmagnetized EWPT case, the spectrum of MHD-turbulence-generated GWs peaks at lower frequency with larger amplitude and can be detected by the proposed Laser Interferometer Space Antenna (LISA).
Keywords
Cite
@article{arxiv.0802.3524,
title = {Gravitational Radiation from Primordial Helical MHD Turbulence},
author = {Tina Kahniashvili and Grigol Gogoberidze and Bharat Ratra},
journal= {arXiv preprint arXiv:0802.3524},
year = {2009}
}
Comments
4 pages, 1 figure, references and discussions added, figure modified, results unchanged, Phys. Rev. Lett. accepted