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Origin of the polar magnetic field reversals

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Abstract

The polar magnetic field on the Sun changes its sign during the maximum of solar cycles. It is known that the phenomenon of three-fold reversal of the polar magnetic field occurred in solar cycle 20. Using the magnetograph data of the Mount Wilson Observatory from 1967 to 1993, we confirm a previously suggested topological model of the three-fold magnetic-field reversal (Benevolenskaya, 1991). From the data set we have found that cycles with three-fold polar magnetic field reversals are characterized by a pronounced high-frequency component of the magnetic field compared with cycles with single polar magnetic-field reversals.

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  1. Pulkovo Observatory, 196140, St. Petersburg, Russia

    E. E. Benevolenskaya

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  1. E. E. Benevolenskaya
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Benevolenskaya, E.E. Origin of the polar magnetic field reversals. Sol Phys 167, 47–55 (1996). https://doi.org/10.1007/BF00146327

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  • DOI: https://doi.org/10.1007/BF00146327

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