Axially Symmetric Hot Big-Bang Cosmologies
Open Access
- 1 June 1969
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 144 (3) , 279-296
- https://doi.org/10.1093/mnras/144.3.279
Abstract
An analysis of homogeneous axially symmetric anisotropic cosmological models containing radiation, matter and a uniform magnetic field is given. The results obtained are used to discuss the effect of magnetic fields and initial anisotropies on the isotropy of the 3 °K background radiation and on the primordial helium production. It is shown that some anisotropic models with a small present day magnetic field and small microwave background anisotropy could have produced as little as about 5 per cent He 4 by mass in the early stages of their evolution.Keywords
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