Plasma rest frame distributions of suprathermal ions in the earth's foreshock region

Details Plasma rest frame distributions of suprathermal ions in the earth's foreshock region Plasma rest frame distributions of suprathermal ions in the earth's foreshock region

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.4365s&link_type=abstract

(Upstream Wave and Particle Workshop, California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, Apr. 15, 16,

Physics

28

Bow Waves, Energetic Particles, Ion Density (Concentration), Shock Waves, Space Plasmas, International Sun Earth Explorer 1, Ionic Diffusion, Magnetopause, Magnetosheath, Plasma Diagnostics, Spacecraft Trajectories

Scientific paper

The paper presents rest frame ion distributions computed from three-dimensional observations of upstream suprathermal ions made by the University of Iowa Quadrispherical Lepedea on ISEE-1. The observations are for a single inbound midmorning pass starting upstream from the ion foreshock and continuing across the quasi-spherical bow shock into the magnetosheath. The crossing of the ion foreshock boundary is marked by a several-minute burst of ions of temperature 100-200 eV moving along the IMF away from the bow shock at 500 km/s relative to the solar wind. The observation of these reflected ions is followed by an extended interval of diffuse ions of temperatures 2-3 keV flowing at about 250 km/s relative to the solar wind and persisting until the bow shock is crossed. Both types of suprathermal ions constitute roughly 2% of the total ion density and carry a parallel heat flux of 0.01 ergs/sq cm-s.

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