Corona during the total solar eclipse on March 20, 2015, and 24 cycle development
| Autor: | Antonina Dvorkina-Samarskaya, S. Yazev, Aleksandr Mordvinov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Solar eclipse Solar cycle 23 Total solar eclipse lcsh:Astrophysics Solar cycle 22 01 natural sciences Physics::Geophysics lcsh:QB460-466 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Physics::Atmospheric and Oceanic Physics 0105 earth and related environmental sciences Physics solar corona Astronomy Solar cycle 14 Corona Solar cycle 10 Solar cycle 19 Geophysics Space and Planetary Science Physics::Space Physics Astrophysics::Earth and Planetary Astrophysics asymmetry |
| Zdroj: | Solar-Terrestrial Physics, Vol 2, Iss 2, Pp 3-14 (2016) |
| ISSN: | 2500-0535 |
| DOI: | 10.12737/20995 |
| Popis: | We analyzed the structure of coronal features, using data on the March 20, 2015 total solar eclipse. The Ludendorff index characterizing the flattening of the corona is 0.09. The solar corona structure in the Northern and Southern hemispheres corresponds to the maximum and post-maximum phases of solar activity, respectively. The asynchronous development of mag-netic activity in the Sun’s Northern and Southern hemi-spheres caused a substantial asymmetry of coronal features observed at the reversal of polar magnetic fields in the current cycle. The polar ray structures in the Southern Hemisphere are associated with the polar cor-onal hole, while in the Northern Hemisphere a polar hole has not been formed yet. We examine the relation between large-scale magnetic fields and location of high coronal structures. |
| Databáze: | OpenAIRE |
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