The effect of the anisotropy of the random component of the interplanetary magnetic field on the density distribution of cosmic rays

Details The effect of the anisotropy of the random component of the interplanetary magnetic field on the density distribution of cosmic rays The effect of the anisotropy of the random component of the interplanetary magnetic field on the density distribution of cosmic rays

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ge%26ae..23..382m&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 23, May-June 1983, p. 382-384. In Russian.

Computer Science

Cosmic Rays, Interplanetary Magnetic Fields, Particle Flux Density, Solar Wind, Energetic Particles, Magnetic Flux, Magnetohydrodynamic Turbulence, Secular Variations, Turbulence Effects

Scientific paper

Numerical calculations are used to analyze the effect of the anisotropy of interplanetary magnetic field (IMF) turbulence on the density distribution of cosmic rays in interplanetary space. It is shown that changes in the degree of anisotropy of the random component of the IMF can significantly change the modulation depth of cosmic rays in earth orbit, producing density variations of particles with an energy of 10 GeV in earth orbit with an amplitude of about 30 percent. Therefore, it is necessary to take into account the anisotropy of the random IMF component for any geometry of the modulation region when investigating the dependence of modulation depth on solar-wind parameters. In addition, variations of the anisotropy of the random component may have a significant effect on the amplitude of the 11-year variation of cosmic rays.

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