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On the magnetic structure of an active region∗

Published online by Cambridge University Press:  14 August 2015

F. A. Ermakov ,
E. I. Mogilevsky  and
B. D. Shelting
F. A. Ermakov
Affiliation:
Institute of Terrestrial Magnetism, Ionosphere and Radio-Wave Propagation, Academy of Sciences, Moscow, U.S.S.R.
E. I. Mogilevsky
Affiliation:
Institute of Terrestrial Magnetism, Ionosphere and Radio-Wave Propagation, Academy of Sciences, Moscow, U.S.S.R.
B. D. Shelting
Affiliation:
Institute of Terrestrial Magnetism, Ionosphere and Radio-Wave Propagation, Academy of Sciences, Moscow, U.S.S.R.

Abstract

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  1. (1) A scheme of magnetic-field generation in an active region within the subphotospheric convective zone is discussed. Magnetic-field amplification is considered to result from the interaction of the local cyclonic motion and the turbulent motion of the subphotospheric plasma.

  2. (2) A model of the magnetoplasma of an active region is considered consisting of a current-free magnetic field, whose lines of force stretch deeply under the photosphere in the form of subgranules (force-free fine-scale plasma elements). The explanation of some peculiarities in the development of an active region with the considered structure is discussed.

  3. (3) Some peculiarities of the general structure of the magnetic field and the motion within photosphere and chromosphere obtained by the analysis of observations with the IZMIRAN two-channel magnetograph is discussed.

Type
Part II: Theoretical Aspects
Information
Symposium - International Astronomical Union , Volume 35: Structure and Development of Solar Active Regions , 1968 , pp. 126
Copyright
Copyright © Reidel 1968