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Gravitational radiation from primordial helical inverse cascade magnetohydrodynamic turbulence

Kahniashvili, Tina and Campanelli, Leonardo and Gogoberidze, Grigol and Maravin, Yurii and Ratra, Bharat (2008) Gravitational radiation from primordial helical inverse cascade magnetohydrodynamic turbulence. Physical Review D, 78.

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Abstract

We consider the generation of gravitational waves by primordial helical inverse-cascade magnetohydrodynamic (MHD) turbulence produced by bubble collisions at the electroweak phase transition. We extend the previous study by considering both currently discussed models of MHD turbulence. For popular electroweak phase transition parameter values, the generated gravitational wave spectrum is only weakly dependent on the MHD turbulence model. Compared with the unmagnetized electroweak phase transition case, the spectrum of MHD-turbulence-generated gravitational waves peaks at lower frequency with larger amplitude and can be detected by the proposed Laser Interferometer Space Antenna.

Item Type: Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Institutes > Institute for Fundamental and Interdisciplinary Mathematics Research
Depositing User: Prof. Tina Kahniashvili
Date Deposited: 29 Jan 2014 19:48
Last Modified: 27 Mar 2015 07:04
URI: http://eprints.iliauni.edu.ge/id/eprint/744

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