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Further Comments Concerning Low Energy Charged Particle Distributions within the Earth’s Magnetosphere and its Environs

  • L. A. Frank
Part of the Astrophysics and Space Science Library book series (ASSL, volume 17)

Abstract

Several recent observations of the distributions of low energy charged particles (100 eV≲ E ≲50keV) within the earth’s magnetosphere and its environs are examined for evidences of source (acceleration) mechanisms. Proton (0.5≲ E ≲ 50 keV) intensities in the outer radiation zone and plasma sheet are concentrated upon since this population forms the largest charged particle energy reservoir in the magnetospheric system. To date no source mechanism for these proton intensities with broad differential energy spectrums (i.e., of the plasma sheet and the storm time and quiescent ‘ring currents’) has been delineated clearly. It is suggested herein that at least the storm time ring current protons are of solar origin and are convected into the magnetotail under the influence of magnetospheric electrostatic fields or via a diffusion process driven by fluctuating magnetic and/or electric fields.

Keywords

Magnetic Storm Plasma Sheet Ring Current Interplanetary Medium Proton Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1970

Authors and Affiliations

  • L. A. Frank
    • 1
  1. 1.Department of Physics and AstronomyThe University of IowaIowa CityUSA

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