Physics
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.3845r&link_type=abstract
Journal of Geophysical Research, vol. 81, Aug. 1, 1976, p. 3845-3850. NASA-supported research
Physics
5
Far Ultraviolet Radiation, Solar Corona, Solar Wind Velocity, Statistical Correlation, Interplanetary Medium, Scintillation, Skylab Program, Velocity Distribution
Scientific paper
Interplanetary scintillation observations of the solar wind velocity during 1973 and the first part of 1974 reveal several corotating high-speed streams. These streams, of heliographic latitudes from +40 deg to -60 deg, have been mapped back to the vicinity of the sun and have been compared with coronal holes identified in wide band XUV solar images taken during the manned portions of the Skylab mission. There is some evidence that the high-speed streams are preferentially associated with coronal holes and that they can spread out from the hole boundaries up to about 20 deg in latitude. However, this association is not one to one; streams are observed which do not map back to coronal holes, and holes are observed which do not lie at the base of streams. To the extent that a statistical interpretation is possible the association is not highly significant, but individual consideration of streams and holes suggests that the statistical result is biased somewhat against a strong correlation.
Crockett W. R.
Ricket B. J.
Sheeley Neil R. Jr.
Sime D. G.
Tousey Richard
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