The Flattening Index of the Eclipse White-Light Corona and Magnetic Fields |
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| Authors: | V Ru?in |
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| Institution: | 1.Astronomical Institute,Slovak Academy of Sciences,Tatranská Lomnica,Slovak Republic |
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| Abstract: | From observations of the solar white-light corona at 65 eclipses from 1851 to 2015 we confirm earlier findings that the flattening index of the white-light corona depends on the phase, rather than the magnitude of solar cycles, which is in contrast with behavior of other major solar activity indices like the sunspot number, the 2800 MHz radio flux, etc. This indicates that mechanisms responsible for creation and distribution of helmet streamers, the most essential coronal structures influencing the flattening index, could be of different magnetic nature from those of other manifestations of solar surface activity. |
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