Physics – Nuclear Physics
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.7771h&link_type=abstract
Journal of Geophysical Research, vol. 86, Sept. 1, 1981, p. 7771-7774.
Physics
Nuclear Physics
3
Heliosphere, Helium, Nuclei (Nuclear Physics), Oxygen, Particle Diffusion, Solar Cosmic Rays, Atmospheric Diffusion, Differential Equations, Energetic Particles, Energy Spectra, Fokker-Planck Equation, Interplanetary Medium, Particle Energy, Solar Protons, Solar Terrestrial Interactions
Scientific paper
Taking into account recent observations of the differential radial gradients and energy spectra of quiet time energetic particles of different energies and masses and over a large heliocentric radial distance from 0.3 to 18 ALL, it is shown that the transport equation for these particles (Fokker-Planck equation) reduces to a first-order differential equation for the radial diffusion coefficient (which can then be solved analytically). For energetic helium and oxygen nuclei, the radial dependence of their diffusion coefficient is then discussed.
Hsieh K. C.
Richter Arne K.
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