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Fractal Flux Tubes of the Solar Magnetic Field

Published online by Cambridge University Press:  12 April 2016

Alexander Ruzmaikin ,
Dmitry Sokoloff  and
Theodore Tarbell
Alexander Ruzmaikin
Affiliation:
IZMIRAN, Troitsk, Moscow Region 142092, USSR
Dmitry Sokoloff
Affiliation:
Moscow State University, Moscow, USSR
Theodore Tarbell
Affiliation:
Lockheed Palo Alto Research Labs, Palo Alto, CA 94304, USA

Abstract

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The small-scale solar magnetic field exceeding a given threshold forms a fractal set. A dimension of this fractal is found from magnetograms with varying linear resolution. The dimension depends on the value of the threshold magnetic field (multifractality). A simple dynamo model explaining the origin of the fractal magnetic structure is considered. The dynamo produces a magnetic field in the form of flux tubes with a fractal distribution of magnetic field across the tube. The observed dimension gives a possibility of estimating a degree of structuredness of the solar velocity field.

Type
Part II Current stellar dynamo theory
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 140 - 146
Copyright
Copyright © Springer-Verlag 1991

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