Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26arv...4..449w&link_type=abstract
Astronomy and Astrophysics Review (ISSN 0935-4956), vol. 4, no. 4, p. 449-485.
Astronomy and Astrophysics
Astrophysics
68
Dynamo Theory, Interstellar Magnetic Fields, Magnetic Field Configurations, Zeeman Effect, Galactic Clusters, Magnetic Induction, Molecular Clouds, Polarized Electromagnetic Radiation, Radio Galaxies, Synchrotron Radiation
Scientific paper
Recent years have seen an amazing development in our knowledge of the magnetic fields in the universe. The last ten years were crucial in our realization of the importance of the magnetic fields in galaxies. While a lot of the earlier data on our Galaxy depended on optical observations, the bulk of the recent results depend on radio measurements. The radio Zeeman effect gave us new information on magnetic fields in molecular clouds. The mapping of galaxies at several radio frequencies resulted in new knowledge about the large-scale magnetic fields in these basic building blocks of the universe. These exciting observations have led to new theoretical developments. In particular, the dynamo theory of flat objects received much attention since the observed large-scale structures can best be explained through the action of the dynamo effect. This review summarizes the observational evidence and to give viable explanations for the magnetic fields in galaxies.
Krause Falko
Wielebinski Richard
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