Magnetic field variations and spatial configurations of long-period sunspot oscillations according to the SOHO data |
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| Authors: | Yu A Nagovitsyn A L Rybak E Yu Nagovitsyna |
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| Institution: | 1. Central Astronomical Observatory at Pulkovo, Russian Academy of Sciences, Pulkovskoe sh. 65, St. Petersburg, 196140, Russia
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| Abstract: | The phenomenon of long-period sunspot oscillations with periods from several tens to a thousand minutes is studied using data on the magnetic field strength and sunspot coordinates obtained based on the SOHO MDI data. It has been indicated that oscillations of the sunspot magnetic field strength are related to relative and absolute horizontal oscillation modes, as a result of which certain limitations are imposed on the interpretation of the phenomenon. |
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