Some statistical results about the energetic particle pulses in the magnetotail

Details Some statistical results about the energetic particle pulses in the magnetotail Some statistical results about the energetic particle pulses in the magnetotail

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986chjss...6...97w&link_type=abstract

Chinese Journal of Space Science, vol. 6, April 1986, p. 97-101. In Chinese, with abstract in English.

Physics

Auroral Electrojets, Correlation, Energetic Particles, Geomagnetic Tail, Magnetic Field Reconnection, Neutral Sheets, Particle Acceleration

Scientific paper

This paper presents the results of a correlation analysis between data on energetic particle pulses obtained by the IMP-J spacecraft (P4: E = 160-230 keV) and the auroral electrojet index AE. The magnetotail is divided into three regions: neutral-sheet region, low-latitude region, and high-latitude region. In the neutral-sheet region, the average energetic particle flux is the highest among all three regions. In the high-latitude region the flux is the lowest. This indicates that the source of energetic particle pulses may be located in the neutral-sheet region. The correlation between energetic particle pulses and AE index is most significant in the neutral-sheet region, the (correlation coefficient R = 0.59). In the low and high-latitude regions, R decreases sharply, implying that energetic-particle-pulse event is a substorm-relevant event, so that the particles are accelerated by the electric field induced by magnetic-field-line reconnection near the neutral-sheet region. The accelerated area is limited to a thin layer around neutral sheet, as found by Hones (1979).

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