Shock drift acceleration of energetic protons at a planetary bow shock

Details Shock drift acceleration of energetic protons at a planetary bow shock Shock drift acceleration of energetic protons at a planetary bow shock

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.8307g&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A6, June 1, 1992, p. 8307-8318. Research supported by NASA and SE

Mathematics

Probability

7

Bow Waves, Energetic Particles, Particle Acceleration, Protons, Shock Waves, Solar Planetary Interactions, Wave-Particle Interactions, Collisionless Plasmas, Mathematical Models, Planetary Magnetospheres

Scientific paper

Results are presented of numerical orbit integrations of the interaction of suprathermal charged particles (protons) with a planetary bow shock, performed in order to investigate the effect of the changing geometry of the shock, due to its curvature, on the kinematics of the particle/shock interaction. Results obtained for both the 2D and 3D bow-shock geometries show that the introduction of shock curvature to the shock in the simulations leads to an increase of the reflection probability of incident suprathermal protons. It was also found that the curvature of the planetary bow shock allows protons to enter at a given value of theta(Bn) (where theta(Bn) is the angle between the local shock normal and the incident magnetic field) and to exit at a different theta(Bn) value. The result has consequences in the characteristics of the energetic charged particle environment in the planetary foreshock.

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