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| Titel |
Gnevyshev peaks in solar radio emissions at different frequencies |
| VerfasserIn |
R. P. Kane |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 4 ; Nr. 27, no. 4 (2009-04-01), S.1469-1475 |
| Datensatznummer |
250016473
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| Publikation (Nr.) |
 copernicus.org/angeo-27-1469-2009.pdf |
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| Zusammenfassung |
| Sunspots have a major 11-year cycle, but the years near
the sunspot maximum show two or more peaks called GP (Gnevyshev Peaks). In
this communication, it was examined whether these peaks in sunspots are
reflected in other parameters such as Lyman-α (the chromospheric
emission 121.6 nm), radio emissions 242–15 400 MHz emanating from altitude
levels 2000–12 000 km, the low latitude (+45° to −45°) solar open
magnetic flux and the coronal green line emission (Fe XIV, 530.3 nm). In the
different solar cycles 20–23, the similarity extended at least upto the
level of 609 MHz, but in cycle 22, the highest level was of 242 MHz. The
extension to the higher level in cycle 22 does not seem to be related to the
cycle strength Rz(max), or to the cycle length. |
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