Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..40..167k&link_type=abstract
Astrophysics and Space Science, vol. 40, Mar. 1976, p. 167-181.
Astronomy and Astrophysics
Astrophysics
5
Astronomical Models, Cosmology, Magnetic Effects, Spin, Torsion, Magnetic Field Configurations, Spin Dynamics
Scientific paper
In axially-symmetric cosmological models of the Einstein-Cartan theory (which may be briefly called `general relativity plus spin'), the axis of symmetry is at the same time the direction of the magnetic field, and of the aligned spins. The general set of relevant equations is given. Some exact solutions of this set constitute quasi-Euclidean and semiclosed cosmologies with a uniform magnetic field and aligned spinning matter. In contrast to the situation in the framework of general relativity, one may obtain non-singular solutions. Such a behaviour of the solutions of the Einstein-Cartan theory is rendered possible by the specific spin-spin repulsive interaction which is inherent in the theory
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