Physics
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jhatd...6....4v&link_type=abstract
Johns Hopkins APL Technical Digest (ISSN 0270-5214), vol. 6, Jan.-Mar. 1985, p. 4-19.
Physics
1
Cosmic Rays, Heliosphere, Interplanetary Medium, Solar Activity Effects, Solar Wind, Bow Waves, Coronal Holes, Earth Magnetosphere, Jupiter (Planet), Pioneer Project, Solar Flares, Solar Magnetic Field, Sunspot Cycle, Voyager Project
Scientific paper
The existing data base on the characteristics of the heliosphere is discussed. It is known that solar gravity is less than necessary to hold all the solar material, and therefore a supersonic solar wind exists. Skylab soft X-ray photographs revealed the existence of coronal holes, which evolve in an 11 yr cycle. It has been proposed that all but the highest energy cosmic rays detected on earth can be attributed to solar and heliospheric origins, a controversial view which requires further empirical and theoretical work on particle acceleration processes and regions of interaction of the solar wind with interplanetary plasma. It is possible that a warped solar current sheet stretches to interplanetary space and organizes the solar magnetic field and thereby guides cosmic rays. An inverse correlation has been identified between the sunspot cycle and cosmic ray intensity. The features and effects of solar flares, subsequent shock waves and high speed particle streams are also discussed.
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