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Abstract <p>The changes in the solar magnetic field as a star, Wolf numbers, radio flux at 10.7 cm, and coronal mass ejection parameters during polar magnetic field polarity reversal periods in cycles 21–25 are considered. The results indicate that during periods near/in polarity reversals, a decrease in the parameters of both global and local magnetic fields is observed. The correlation between them also decreases sharply with a transition to the anticorrelation mode. The parameters of coronal mass ejections depend on the polar magnetic field strength and its cyclic variations.</p>

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Solar Activity during Periods of Polar Magnetic Field Reversal

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • I. A. Bilenko

摘要

Abstract

The changes in the solar magnetic field as a star, Wolf numbers, radio flux at 10.7 cm, and coronal mass ejection parameters during polar magnetic field polarity reversal periods in cycles 21–25 are considered. The results indicate that during periods near/in polarity reversals, a decrease in the parameters of both global and local magnetic fields is observed. The correlation between them also decreases sharply with a transition to the anticorrelation mode. The parameters of coronal mass ejections depend on the polar magnetic field strength and its cyclic variations.