Plasma behavior during energetic electron streaming events further evidence for substorm-associated magnetic reconnection

Details Plasma behavior during energetic electron streaming events further evidence for substorm-associated magnetic reconnection Plasma behavior during energetic electron streaming events further evidence for substorm-associated magnetic reconnection

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..664b&link_type=abstract

Geophysical Research Letters, vol. 9, June 1982, p. 664-667.

Physics

39

Earth Magnetosphere, Energetic Particles, High Energy Electrons, Magnetic Storms, Magnetohydrodynamic Flow, Plasma Heating, Space Plasmas, Flow Velocity, Magnetic Field Configurations, Neutral Sheets, Plasma Density, Plasma Diagnostics, Statistical Analysis

Scientific paper

A recent study showed that streaming energetic (more than 200 keV) electrons in earth's magnetotail are statistically associated with southward magnetic fields and with enhancements of the AE index. It is shown here that the streaming electrons characteristically are preceded by an approximately 15-minute period of tailward plasma flow and followed by a dropout of the plasma sheet, thus demonstrating a clear statistical association between substorms and the classical signatures of magnetic reconnection and plasmoid formation. Additionally, a brief upward surge of mean electron energy preceded plasma dropout in several of the events studied, providing direct evidence of localized, reconnection-associated heating processes.

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