Solar magnetic cycle: Peculiarities of the photospheric field distribution |
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| Authors: | E S Vernova M I Tyasto D G Baranov |
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| Institution: | 1.Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation,St. Petersburg Branch,St. Petersburg,Russia;2.Ioffe Physicotechnical Institute,Russian Academy of Sciences,St. Petersburg,Russia |
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| Abstract: | Synoptic maps for 1976–2003 obtained at the Kitt Peak National Solar Observatory are used to analyze the longitudinal distribution
of the solar photospheric magnetic field. The superposition of synoptic maps gives different pictures for the rise-maximum
phase and the decline-minimum phase. Two characteristic periods correspond to different situations in the 22-year solar magnetic
cycle in the course of which both the global magnetic field and the magnetic field of the leading sunspot in a group change
their sign. |
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