Abstract
The relationship between two classes of coronal holes and high-speed quasi-stationary streams of solar wind at the Earth’s orbit is investigated. “Open” coronal holes, whose area is invariable or increases with the height over the solar surface, are rated in the first class, and “closed” coronal holes with areas decreasing with the height are referred to as second-class holes. The parameters of the coronal holes are determined from IR and EUV images and spectroheliograms. It is shown that most open coronal holes can be associated with high-speed solar-wind streams, while most closed coronal holes exhibit a much lower correlation with such streams.
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Original Russian Text © N.N. Stepanian, S.V. Kuzin, V.G. Fainshtein, G.V. Rudenko, V.M. Malashchuk, V.A. Perebeinos, N. I. Shtertser, R.K. Zhigalkin, I.A. Zhitnik, A.A. Pertsov, 2008, published in Astronomicheskii Vestnik, 2008, Vol. 42, No. 1, pp. 86–92.
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Stepanian, N.N., Kuzin, S.V., Fainshtein, V.G. et al. Relationship between the coronal holes and high-speed streams of solar wind. Sol Syst Res 42, 83–89 (2008). https://doi.org/10.1134/S0038094608010097
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DOI: https://doi.org/10.1134/S0038094608010097