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The Polar Fields and Time Fluctuations of the General Magnetic Field of the Sun

Published online by Cambridge University Press:  14 August 2015

A. B. Severny
A. B. Severny*
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea, U.S.S.R.

Abstract

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In an attempt to summarize the present knowledge on the general magnetic field (gmf) of the Sun we pointed out the fine structure and the statistical nature of the gmf as one of its most important properties. The dipole-like behaviour of the mean polar field strengths is combined sometimes (since 1964) with a bias of the S-polarity flux for both poles. Highly uneven distribution of gmf with latitude and longitude, the disappearance of gmf at the South pole for months, and short period, almost synchronous at both poles, variations in the sign of gmf are pointed out. The fluctuations with time of the mean magnetic field of the Sun seen as a star (as well as mf at different latitudes) shows periodicity connected with the rotation of the Sun and very close agreement with the fluctuations of the interplanetary field (sector structure). The effect of faster rotation of N-polarities as compared with S-polarities as well as the bias of mean solar as well as interplanetary S-polarity fields are also pointed out. The possibility of short time-scale (hours) intrinsic changes in the local pattern of gmf is demonstrated.

Type
Part VII: The Polar Fields of the Sun and the Magnetic Activity Cycle
Information
Symposium - International Astronomical Union , Volume 43: Solar Magnetic Fields , 1971 , pp. 675 - 695
Copyright
Copyright © Reidel 1971 

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