Changes of Sun magnetic asymmetry

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1Leiko, UM
1Astronomical Observatory of Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2016, 32(6):56-67
Start Page: Solar Physics
Language: Russian
Abstract: 

We report the results of the analysis of the north-south asymmetry of solar activity, solar magnetic fields. The analysis is based on solar mean magnetic field and solar polar magnetic field time series, 1975—2015 (http://wso.stanford.edu), the Greenwich sunspot data, 1875—2015 (http:// solarscience.msfc.nasa.gov/greenwch.shtml). The long-term cycle (~ 140 years) of north-south asymmetry of solar activity was selected on the time series of the sunspot area. Probably the photospreric large-scale magnetic fields have this long-term cycle also. Variations of the asymmetry of large- scale and small-scale magnetic fields (area of sunspots) are in sync until 2005.5, after this time the dynamics asymmetry passes in antiphase.

Keywords: magnetic field, north-south asymmetry, solar cycle, Sun
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