Cosmic-ray streaming and anisotropies

Details Cosmic-ray streaming and anisotropies Cosmic-ray streaming and anisotropies

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..32...77f&link_type=abstract

Astrophysics and Space Science, vol. 32, Jan. 1975, p. 77-94.

Astronomy and Astrophysics

Astrophysics

44

Anisotropy, Convective Flow, Cosmic Rays, Current Density, Interplanetary Medium, Particle Diffusion, Diffusion Coefficient, Diurnal Variations, Drift Rate, Electric Fields, Galactic Radiation, Radiation Distribution, Solar Wind

Scientific paper

The paper is concerned with the differential current densities and anisotropies that exist in the interplanetary cosmic-ray gas, and in particular with a correct formulation and simple interpretation of the momentum equation that describes these on a local basis. Two examples of the use of this equation in the interpretation of previous data are given. It is demonstrated that in interplanetary space, the electric-field drifts and convective flow parallel to the magnetic field of cosmic-ray particles combine as a simple convective flow with the solar wind, and that there exist diffusive currents and transverse gradient drift currents. Thus direct reference to the interplanetary electric-field drifts is eliminated, and the study of steady-state and transient cosmic-ray anisotropies is both more systematic and simpler.

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