On midrange periodicities in solar radio flux and sunspot areas
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DOI: 10.1007/s10509-018-3306-1
Abstract: Using the Hilbert-Huang transform technique, we investigate the midrange periodicities in solar radio flux at 2800 MHz (F10.7) and sunspot areas (SAs) from February 1, 1947 to September 30, 2016. The following prominent results are found:… read more here.
Keywords: radio flux; solar radio; periodicities solar; midrange periodicities ... See more keywords
Study of the Periodicities of the Solar Differential Rotation
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DOI: 10.1007/s10511-020-09633-4
Abstract: Data on solar hydrogen filaments obtained at the Abastumani Astrophysical Observatory during solar activity cycles 19-22 are used to study the characteristic periods of the solar differential rotation. In addition to the known 11-year period… read more here.
Keywords: solar differential; hydrogen filaments; rotation; differential rotation ... See more keywords