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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 4, issue 3
Nonlin. Processes Geophys., 4, 167–172, 1997
https://doi.org/10.5194/npg-4-167-1997
© Author(s) 1997. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Nonlin. Processes Geophys., 4, 167–172, 1997
https://doi.org/10.5194/npg-4-167-1997
© Author(s) 1997. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  30 Sep 1997

30 Sep 1997

Width dependent collisionless electron dynamics in the static fields of the shock ramp, 1, Single particle behavior and implications for downstream distribution

M. Gedalin1 and M. A. Balikhin2 M. Gedalin and M. A. Balikhin
  • 1Ben-Gurion University, Beer-Sheva, Israel
  • 2Sheffield University, Sheffield, England

Abstract. We study the collisionless dynamics of electrons in the shock ramp using the numerical trajectory analysis in the model electric and magnetic fields of the shock. Even with very modest assumptions about the cross-shock potential the electron trajectories are very sensitive to the width of the ramp. The character of electron motion changes from the fully adiabatic (with conservation of v2<perp>  /B) when the ramp is wide, to the nonadiabatic one, when the ramp becomes sufficiently narrow. The downstream electron distribution also changes drastically, although this change depends on the initial electron temperature.

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