Dynamo Excitation in Very Large Scales
When Ludwig BIERMANN in 1950 published his paper with the title “Über den Ursprung der Magnetfelder auf Sternen and im interstellaren Raum” , no direct information about the interstellar magnetic field was at hand, however, its existence was inferred from the observed properties of the cosmic radiation, especially their isotropy, by Alfvén, Richtmyer and Teller, and Fermi. Interestingly, the direct observations, which started 10 years later, confirmed not only the postulated existence of an interstellar magnetic field, but also the estimated order of magnitude.
KeywordsFlux Rope Differential Rotation Cosmic Radiation Oblate Spheroid Ring Field
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