Polar fields during the rising phase of cycle 22
Autor: | Haimin Wang, Frances Tang |
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Rok vydání: | 1991 |
Předmět: | |
Zdroj: | Solar Physics. 132:247-256 |
ISSN: | 1573-093X 0038-0938 |
DOI: | 10.1007/bf00152286 |
Popis: | High-resolution magnetograph observations of the polar magnetic fields have been obtained at intervals of time since the end of 1986 at Big Bear Solar Observatory. The Big Bear data differ from the low-resolution, full-disk magnetograph observations in that the 2 arc sec resolution makes it possible to resolve concentrated field upward of 100 G. The purpose of this ongoing observation is to examine the evolution of polar fields during the expected polarity reversal as cycle 22 passes its maximum phase, and secondly, to study the polar magnetic field: its true field strength, distribution, and how it compares to other parts of the quiet Sun. |
Databáze: | OpenAIRE |
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