Published April 21, 2004
| Version v1
Journal article
Cosmic magnetic fields from velocity perturbations in the early universe
Creators
- 1. Department of Mathematics and Applied Mathematics, University of Cape Town, 7701 Rondebosch (South Africa)
- 2. Department of Electromagnetics, Chalmers University of Technology, SE-412 96 Goeteborg (Sweden)
Description
We show, using a covariant and gauge-invariant charged multifluid perturbation scheme, that velocity perturbations of the matter-dominated dust Friedmann-LemaItre-Robertson-Walker model can lead to the generation of cosmic magnetic fields. Moreover, using cosmic microwave background constraints, it is argued that these fields can reach strengths of about 10-28 G at the time the dynamo mechanism sets in, making them plausible seed field candidates
Availability note (English)
Available online at http://stacks.iop.org/0264-9381/21/2115/cqg4_8_014.pdf or at the Web site for the journal Classical and Quantum Gravity (ISSN 1361-6382) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0264-9381/21/2115/cqg4_8_014.pdf; http://www.iop.org/;
- DOI
- 10.1088/0264-9381/21/8/014;
- PII
- S0264-9381(04)70617-6;
Publishing Information
- Journal Title
- Classical and Quantum Gravity
- Journal Volume
- 21
- Journal Issue
- 8
- Journal Page Range
- p. 2115-2125
- ISSN
- 0264-9381
- CODEN
- CQGRDG
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35083392
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COSMOLOGICAL MODELS; DISTURBANCES; GAUGE INVARIANCE; MAGNETIC FIELDS; RELICT RADIATION; UNIVERSE
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MICROWAVE RADIATION; RADIATIONS