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Mean-Field Magnetohydrodynamics as a Basis of Solar Dynamo Theory

Published online by Cambridge University Press:  14 August 2015

K.-H. Rädler
K.-H. Rädler*
Affiliation:
Zentralinstitut für Astrophysik, Potsdam, G.D.R.

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One of the most striking features of both the magnetic field and the motions observed at the Sun is their highly irregular or random character which indicates the presence of rather complicated magnetohydrodynamic processes. Of great importance in this context is a comprehension of the behaviour of the large scale components of the magnetic field; large scales are understood here as length scales in the order of the solar radius and time scales of a few years. Since there is a strong relationship between these components and the solar 22-years cycle, an insight into the mechanism controlling these components also provides for an insight into the mechanism of the cycle. The large scale components of the magnetic field are determined not only by their interaction with the large scale components of motion. On the contrary, a very important part is played also by an interaction between the large and the small scale components of magnetic field and motion so that a very complicated situation has to be considered.

Type
Part 3: Dynamo Theory and Magnetic Dissipation
Information
Symposium - International Astronomical Union , Volume 71: Basic Mechanisms of Solar Activity , 1976 , pp. 323 - 344
Copyright
Copyright © Reidel 1976 

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