Bidirectional solar wind electron heat flux events

Details Bidirectional solar wind electron heat flux events Bidirectional solar wind electron heat flux events

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.8519g&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Aug. 1, 1987, p. 8519-8535. DOE-sponsored research.

Physics

269

Heat Flux, Solar Electrons, Solar Wind, Histograms, Interplanetary Magnetic Fields, Magnetic Clouds, Shock Wave Propagation, Solar Corona

Scientific paper

Normally the ⪆80-eV electrons which carry the solar wind electron heat flux are collimated along the interplanetary magnetic field (IMF) in the direction pointing outward away from the sun. Occasionally, however, collimated fluxes of ⪆80-eV electrons are observed traveling both parallel and antiparallel to the IMF. The authors present the results of a survey of such bidirectional electron heat flux events as observed with the plasma and magnetic field experiments aboard ISEE 3 at times when the spacecraft was not magnetically connected to the earth's bow shock. Consistent with previous work they interpret the bidirectional heat flux as evidence for a closed field topology in interplanetary space. Further, the authors suggest that these events are one of the more prominent signatures of coronal mass ejection events in the solar wind at 1 AU.

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