Calculations of the cosmic ray modulation in interplanetary space taking into account the possible dependence of the transport travel for the scattering of the particles and of the velocity of the solar winds on the angles they make with the helioequator plane: The case of isotropic diffusion
Abstract
The modulation of galactic cosmic rays is studied by the magnetic heterogeneities stream on the assumption that the diffusion coefficient is reduced whereas the solar wind velocity is increased with the growth of the angle between the sun's rotation axis and the direction of solar plasma motion. The stationary plane problem of isotropic diffusion is solved as it applies to two cases: (1) with due account of particle retardation by the antiphermium mechanism; and (2) without an account of the above mechanism. This problem is solved by the grid method in the polar coordinate system. The results of the calculations are followed by a discussion of the method of solution and of the errors.
 Publication:

Cosmic Rays
 Pub Date:
 January 1975
 Bibcode:
 1975cora.nasa..170D
 Keywords:

 Cosmic Rays;
 Interplanetary Space;
 Particle Diffusion;
 Solar Wind Velocity;
 Diffusion Coefficient;
 Galactic Radiation;
 Modulation;
 Particle Flux Density;
 Scattering Coefficients;
 Space Radiation