Cosmic magnetic fields from velocity perturbations in the early Universe

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dc.creatorBetschart, Gerold
dc.creatorDunsby, Peter K. S.
dc.creatorMarklund, Mattias
dc.date2003-10-16
dc.date2003-10-21
dc.date.accessioned2026-07-07T11:30:03Z
dc.date.available2026-07-07T11:30:03Z
dc.descriptionWe 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.
dc.description11 pages, 1 figure, IOP style, minor changes and typos corrected
dc.identifierhttps://arxiv.org/abs/gr-qc/0310085
dc.identifierhttp://arxiv.org/abs/gr-qc/0310085
dc.identifierClass.Quant.Grav.21:2115-2126,2004
dc.identifierdoi:10.1088/0264-9381/21/8/014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196905
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCosmic magnetic fields from velocity perturbations in the early Universe
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