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Correlation of high latitude coronal holes with solar wind streams far above or below the ecliptic

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Abstract

For the 2.5 year period from January 1, 1977 to June 30, 1979, we have correlated the positions of high latitude coronal holes, obtained from the He 10830 Å synoptic maps, with the velocities of solar wind streams, determined from interplanetary scintillation, that would have originated from these coronal holes. From 24 cases analyzed we find that these high latitude coronal holes are often, but not always, correlated with high speed solar wind streams. The lack of a much stronger correlation may be due to uncertainties in the boundaries of the coronal holes and in the velocities of the solar wind streams. It might also be due to the deflection or attenuation of relatively weak solar wind streams in interplanetary space.

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Authors and Affiliations

  1. Dept. of Astronomy, Boston University, 02215, Boston, MA, U.S.A.

    Kile B. Baker & Michael D. Papagiannis

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  1. Kile B. Baker
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  2. Michael D. Papagiannis
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Baker, K.B., Papagiannis, M.D. Correlation of high latitude coronal holes with solar wind streams far above or below the ecliptic. Sol Phys 78, 365–372 (1982). https://doi.org/10.1007/BF00151616

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  • DOI: https://doi.org/10.1007/BF00151616

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