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Galactic and Metagalactic Magnetic Fields

Published online by Cambridge University Press:  14 August 2015

K. Brecher
K. Brecher*
Affiliation:
University of California, San Diego, Calif., U.S.A.

Abstract

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All of the possible sources of primeval magnetic fields are examined and found to be inadequate to account for the observed galactic B-fields (if the magnetic fields in galaxies are the direct result of the condensation of a magnetized metagalactic medium). Field amplification in dense rotating objects (perhaps neutron stars or galactic nuclei) may be responsible for the bulk of such fields. Most of the (hypothetical) intergalactic B-field then originates in galaxies and is dragged along with the cosmic rays escaping from them. Limits are placed on the value of any present intergalactic magnetic field of either primordial or ‘recent’ origin.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 44: External Galaxies and Quasi-Stellar Objects , 1972 , pp. 520 - 525
Copyright
Copyright © Reidel 1972 

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