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A generalized polarity rule for solar magnetic fields

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Abstract

It is shown that, when all components of the large-scale solar magnetic field are longitudinally averaged, the N polarity and the eastward transverse component of the B φ field associated with both local and large-scale fields over the Northern hemisphere are somewhat stronger and occupy a smaller area during odd cycles than does the field of opposite polarity. This behavior is reversed for even cycles or the Southern hemisphere. The regular Hale law is a particular form of the above rule. The nature of this asymmetry seems to be rooted in the dynamo mechanism itself, and should be important for fields on any scale.

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Authors and Affiliations

  1. Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia

    V. N. Obridko & B. D. Shel’ting

Authors
  1. V. N. Obridko
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  2. B. D. Shel’ting
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Additional information

Original Russian Text © V.N. Obridko, B.D. Shel’ting, 2007, published in Astronomicheskiĭ Zhurnal, 2007, Vol. 84, No. 4, pp. 380–384.

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Obridko, V.N., Shel’ting, B.D. A generalized polarity rule for solar magnetic fields. Astron. Rep. 51, 339–342 (2007). https://doi.org/10.1134/S1063772907040087

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  • DOI: https://doi.org/10.1134/S1063772907040087

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