Abstract
A simple diffusion model of Saturn's radiation belts with a constant internal source and particle losses at the boundaries is considered. The radial diffusion coefficient is supposed to be D LL ∝ L 4. The analytical solution to the stationary diffusion equation describes well the observed radial profiles of the distribution function of energetic protons in Saturn's magnetosphere.
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REFERENCES
Van Allen, J.A., Randall, B.A., and Thomsen, M.F., Sources and Sinks of Energetic Electrons and Protons in Saturn's Magnetosphere, J. Geophys. Res.,1980, vol. 85, no. 11, pp. 5679–5694.
Van Allen, J.A., Absorption of Energetic Protons by Saturn's Ring G, J. Geophys. Res., 1983, vol. 88, no. 9, pp. 6911–6918.
Paranikas, C., Cheng, A.F., Mauk, B.H., et al., Evidence of a Source of Energetic Ions at Saturn, J. Geophys. Res., 1997, vol. 102, no. 8, pp. 17459–17466.
Gubar', Yu.I., Analytical Solutions to the Problem of the Theory of Radial Diffusion of Radiation Belt Particles, Kosm. Issled.,1997, vol. 35, no. 3, pp. 328–330.
Bronshtein, I.N. and Semendyaev, K.A., Spravochnik po Matematike(Handbook of Mathematics), Moscow: Nauka, 1986.
Cooper, J.F., Nuclear Cascades in Saturn's Rings: Cosmic Ray Albedo Neutron Decay and Origins of Trapped Protons in the Inner Magnetosphere, J. Geophys. Res., 1983, vol. 88, pp. 3945–3954.
Hood, L.L., Radial Diffusion in Saturn's Radiation Belts: A Modeling Analysis Assuming Satellite and Ring E Absorption, J. Geophys. Res., 1983, vol. 88, no. 2, pp. 808–818.
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Gubar, Y.I. A Diffusion Model of Radial Distributions of Energetic Protons in Saturn's Magnetosphere. Cosmic Research 42, 370–373 (2004). https://doi.org/10.1023/B:COSM.0000039736.50725.1f
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DOI: https://doi.org/10.1023/B:COSM.0000039736.50725.1f