Latitudinal drift of solar magnetic field imbalance |
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| Authors: | Ya I Zyelyk O A Andryeyeva N N Stepanian |
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| Institution: | (1) Space Research Institute, National Academy of Sciences of Ukraine and National Space Agency of Ukraine, 03680, Ukraine, Kyiv, Akademika Glushkova pr., 40, corp. 4/1;(2) Crimean Astrophysical Observatory, Research Institute, Ministry of Education and Science of Ukraine, pos. Nauchnyi, Crimea, 98409, Ukraine |
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| Abstract: | The latitudinal drift of the imbalance flow of magnetic fields as a whole and the latitudinal drift of the imbalance flow components with certain significant rotation periods are determined. Comparison of these two drift types is performed for different ranges of magnetic field strength using the data of a 26-year observation period. The mathematical model of representation of the imbalance as a steady-state random process is used. As a result of analysis the following facts are established: (i) structures rotating with the same significant period are observed in a wide latitude range, (ii) there exist several significant periods in the power spectrum for one latitude, (iii) the character of the latitudinal drift of the imbalance flow of magnetic fields as a whole and the imbalance structures rotating with significant periods is the same for fields with close strengths, and (iv) for fields with each of the considered strengths there exists a latitude band in which a drift along the meridian is absent. |
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| Keywords: | Sun magnetic fields latitudinal drift rotation |
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