Differential rotation of the solar electron corona

Autor: Richard T. Hansen, Shirley F. Hansen, Harold G. Loomis
Rok vydání: 1969
Předmět:
Zdroj: Solar Physics. 10:135-149
ISSN: 1573-093X
0038-0938
DOI: 10.1007/bf00146162
Popis: Autocorrelation analyses of K-coronameter observations made at Haleakala and Mauna Loa, Hawaii, during 1964–1967 have established average yearly rotation rates of coronal features as a function of latitude and height above the limb. At low latitudes the corona was found to rotate at the same rate as sunspots but at higher latitudes was consistently faster than the underlying photosphere. There were differences as large as 3–4% in the rate at specific latitudes from year to year and between the two hemispheres. In 1967 a nearly constant rotation was found for heights ranging from 1.125 to 2.0 R 0. For 1966 there was a more complicated pattern of height dependence, with the rate generally decreasing with height at low latitudes and increasing at high latitudes.
Databáze: OpenAIRE
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