NASA NTRS · 19800009706
Solar coronal holes and cosmic ray intensity variations
Abstract
A relationship between the (North-South) asymmetry in the areas of the solar polar coronal holes and the (North-South) anisotropy in the cosmic ray intensity is examined. The investigation was extended over a period of two years, using ground based observations of coronal brightness obtained by the K-Coronameter. Periods for study of cosmic ray variations were chosen maximizing the asymmetry of the polar coronal holes. The importance of the role played by coronal holes in the solar modulation of galactic cosmic rays is emphasized.
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Venkatesan, D., Agrawal, S. P., Lanzerotti, L. J., Hansen, R. T.. 1980-02-01. Solar coronal holes and cosmic ray intensity variations. https://ntrs.nasa.gov/citations/19800009706
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