Other
Scientific paper
May 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.2103b&link_type=abstract
Journal of Geophysical Research, vol. 81, May 1, 1976, p. 2103-2110.
Other
5
Cosmic Rays, Interplanetary Magnetic Fields, Magnetic Field Configurations, Particle Motion, Diffusion Coefficient, Forbush Decreases, Particle Diffusion, Solar System
Scientific paper
Cosmic rays interact with mesoscale configurations of the interplanetary magnetic field. A technique is presented for calculating such configurations in the inner solar system, which are due to streams and source conditions near the sun, and maps of magnetic field are constructed for some plausible stream and source conditions. One effect of these mesoscale configurations on galactic cosmic rays is shown to be an out-of-the-ecliptic gradient drift sufficient to explain Forbush decreases. The effects on solar energetic particles include small polar drifts due to the field gradients and a possibly large modification of the time-intensity profiles and anisotropy characteristics due to the formation of mirror configurations in space. If a diffusion model is applicable to solar particles, the true diffusion coefficient will be masked by the effects of streams. A conceptual model which incorporates these ideas and those of several other models is presented.
Barouch E.
Burlaga Leonard Francis
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