Cosmic magnetic fields from velocity perturbations in the early Universe
arXiv:gr-qc/0310085 · doi:10.1088/0264-9381/21/8/014
Abstract
We show, using a covariant and gauge-invariant charged multifluid perturbation scheme, that velocity perturbations of the matter-dominated dust Friedmann-Lemaitre-Robertson-Walker (FLRW) model can lead to the generation of cosmic magnetic fields. Moreover, using cosmic microwave background (CMB) constraints, it is argued that these fields can reach strengths of between 10^{-28} and 10^{-29} G at the time the dynamo mechanism sets in, making them plausible seed field candidates.
arXiv comment11 pages, 1 figure, IOP style, minor changes and typos corrected
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Cited by in corpus (18)
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- Cosmological magnetic fields from nonlinear effects
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- The general relativistic MHD dynamo equation
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