Statistical constraints on outer zone relativistic electron dynamics

Details Statistical constraints on outer zone relativistic electron dynamics Statistical constraints on outer zone relativistic electron dynamics

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm31c..02o&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM31C-02

Physics

[2720] Magnetospheric Physics / Energetic Particles: Trapped, [2730] Magnetospheric Physics / Magnetosphere: Inner, [2772] Magnetospheric Physics / Plasma Waves And Instabilities, [2774] Magnetospheric Physics / Radiation Belts

Scientific paper

Outer zone relativistic electron dynamics are routinely treated as linear in the electron phase-space density. For such linear systems, there is an intimate relationship between the time evolution operator (such as the Fokker-Planck equation) and the spatio-temporal covariance of phase space density. Using particle fluxes observed by the CRRES mission, we exploit this relationship to derive constraints on the time evolution operator. We answer three questions: Is a Fokker-Planck operator appropriate? If so, what diffusion coefficients should be used? What plasma waves must be assumed to obtain the inferred diffusion coefficients?

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