Solar modulation of galactic cosmic rays. V - Time-dependent modulation

Details Solar modulation of galactic cosmic rays. V - Time-dependent modulation Solar modulation of galactic cosmic rays. V - Time-dependent modulation

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.9033p&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Nov. 1, 1983, p. 9033-9036.

Physics

80

Galactic Cosmic Rays, Periodic Variations, Solar Activity Effects, Solar Cycles, Hysteresis, Mathematical Models, Solar Protons, Solar Wind, Time Dependence

Scientific paper

A numerical technique is introduced for the solution of the time-dependent equation for the solar modulation of galactic cosmic rays, in which transport in heliographic latitude is ignored. The authors illustrate this method with a model for the solar cycle variation in cosmic ray intensity. The variation is assumed to result from changes in the number of enhanced cosmic ray scattering regions, which are produced by flare-generated shock waves in the solar wind. The model can account for the observed solar cycle variation in intensity at different energies as well as the observed spatial gradients. This model also provides a natural explanation for the cosmic ray hysteresis effect.

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