Analysis of the Properties of SEP Events and Their Solar Sources Taking Into Account of the Magneto-Morphological Classification of Active Regionsстатья
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Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
Аннотация:We studied 87 events of solar cosmic rays, i.e., solar energetic particle (SEP) emissions associatedwith solar flares of at least M5 class (according to the GOES classification) that occurred during solar cycle 23. A relationship between the spectral parameters of the SEP events and the microwave (MW) emission properties of the related solar flares was analysed. The peak frequency of the MW spectrum was used as an indicator of the acceleration processes during solar flares, which may characterize both the strength of magnetic field in the emission source and the power of the accelerated particle flux. The magneto-morphological classification (MMC) was applied to take into account the features of the magnetic topology of the active regions (ARs) that generated flares. Our analysis showed that most ARs, associated with SEP events with large proton flux, violated at least one of the empirical laws established for sunspot groups (Hale’s law, Joy’s law, or another). The relationships between the spectral properties of electrons and protons and the properties of MW radiation were analyzed and discussed, taking into account the MMC of ARs generated flares associated with SEP events.