On rotational patterns of the solar magnetic field

被引：0

作者：

Temmer, M ^{[1
]}

Veronig, A ^{[1
]}

Rybák, J ^{[1
]}

Hanslmeier, A ^{[1
]}

机构：

[1] Graz Univ, Inst Geophys Astrophys & Meteorol, A-8010 Graz, Austria

来源：

SOLAR VARIABILITY AS AN INPUT TO THE EARTH'S ENVIRONMENT | 2003年 / 535卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Solar magnetic field variations (NSO/Kitt Peak data) through solar cycle 23 with respect to rotational modulations are analyzed. A comparative study to solar cycles 21 and 22 is performed. The results are compared to the rotational behavior of activity tracers like sunspots and solar Halpha flares. Periodical occurrences of flares often match the 27-day solar rotation due to recurrent stable sunspot groups and complexes of activity which likely produce more flare events than short-living small sunspots. However, periods with strong deviations from the 27-day period are obtained for higher energetic flares. The solar magnetic field is found to vary on similar time scales, which suggests a close relation to the occurrence of strong flare events.

引用

页码：157 / 160

页数：4

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