Computer Science
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980gsfc.reptq....b&link_type=abstract
Technical Report, Dec. 1974 - Apr. 1975 National Aeronautics and Space Administration. Goddard Space Flight Center, Greenbelt, M
Computer Science
Current Sheets, Interplanetary Magnetic Fields, Magnetic Flux, Polarity, Solar Wind, Dynamic Models, Ellipticity, Helios 1, Hodographs, Statistical Distributions, Variations
Scientific paper
The structure of the interplanetary sector boundaries observed by Helios 1 within sector transition regions was studied. Such regions consist of intermediate (nonspiral) average field orientations in some cases, as well as a number of large angle directional discontinuities (DD's) on the fine scale (time scales 1 hour). Such DD's are found to be more similar to tangential than rotational discontinuities, to be oriented on average more nearly perpendicular than parallel to the ecliptic plane to be accompanied usually by a large dip ( 80%) in B and, with a most probable thickness of 3 x 10 to the 4th power km, significantly thicker previously studied. It is hypothesized that the observed structures represent multiple traversals of the global heliospheric current sheet due to local fluctuations in the position of the sheet. There is evidence that such fluctuations are sometimes produced by wavelike motions or surface corrugations of scale length 0.05 - 0.1 AU superimposed on the large scale structure.
Barnstorf H.
Behannon Kenneth W.
Neubauer Fritz Manfred
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