Teodoro, L.F.A., Diver, D.A. and Hendry, M.A. (2008) A cautionary note on cosmological magnetic fields. Monthly Notices of the Royal Astronomical Society, 383(1), L35-L39. (doi: 10.1111/j.1745-3933.2007.00406.x)
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Abstract
This note is concerned with potentially misleading concepts in the treatment of cosmological magnetic fields by magnetohydrodynamical (MHD) modelling. It is not a criticism of MHD itself but rather a cautionary comment on the validity of its use in cosmology. Now that cosmological data are greatly improved compared with a few decades ago, and even better data are imminent, it makes sense to revisit original modelling assumptions and examine critically their shortcomings in respect of modern science. Specifically this article argues that ideal MHD is a poor approximation around recombination, since it inherently restricts evolutionary timescales, and is often misapplied in the existing literature.
Item Type: | Articles |
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Keywords: | Cosmology: theory; Physical data and processes: magnetic fields |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Teodoro, Dr Luis and Diver, Professor Declan and Hendry, Professor Martin |
Authors: | Teodoro, L.F.A., Diver, D.A., and Hendry, M.A. |
Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Research Centre: | College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research |
Research Group: | Astronomy and Astrophysics Group |
Journal Name: | Monthly Notices of the Royal Astronomical Society |
Publisher: | Oxford University Press |
ISSN: | 0035-8711 |
ISSN (Online): | 1365-2966 |
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