Computer Science – Numerical Analysis
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ge%26ae..16...37s&link_type=abstract
(Geomagnetizm i Aeronomiia, vol. 16, Jan.-Feb. 1976, p. 37-42.) Geomagnetism and Aeronomy, vol. 16, Aug. 1976, p. 21-23. Transl
Computer Science
Numerical Analysis
Cosmic Rays, Interplanetary Magnetic Fields, Numerical Analysis, Solar Activity Effects, Twenty-Seven Day Variation, Anisotropy, Differential Equations, Diffusion Coefficient, Galerkin Method, Modulation, Perturbation Theory, Quasi-Steady States, Solar Wind
Scientific paper
The differential equation which describes the propagation of galactic cosmic rays in a diffusion approximation containing convective and adiabatic terms is solved numerically in the case of a spherically symmetric solar wind. It is assumed that the 27-day variations are caused primarily by an asymmetric stream of magnetic inhomogeneities with the collaboration of a regular magnetic field in some part of space. Modulation by a spherically symmetric solar wind is analyzed, and the amplitude of the anisotropy is estimated. Good agreement with experimental data is obtained.
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