A possible energy source to power stable auroral red arcs - Precipitating electrons

Details A possible energy source to power stable auroral red arcs - Precipitating electrons A possible energy source to power stable auroral red arcs - Precipitating electrons

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.4543s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, May 1, 1987, p. 4543-4552.

Physics

25

Auroral Arcs, Dynamics Explorer 2 Satellite, Electron Precipitation, Ionospheric Electron Density, Space Plasmas, Electron Energy, Electron Flux Density, Spectrograms, Sunspots

Scientific paper

Results of coincident measurements by ground-based photometers and the low-altitude plasma instrument on board the Dynamics Explorer 2 satellite are presented that demonstrate the association of precipitating low-energy electrons with stable auroral red (SAR) arcs. A search of available data has yielded 23 instances of DE 2 overflights during the presence of SAR arcs being monitored by the photometers. For each case, downward fluxes of electrons are found to be enhanced along field lines penetrating the arcs in relation to regions both north and south of the features. Modeling of the atmospheric response to these influxes indicates that these electrons can represent a major source of the energy required to establish temperature profiles within the ionospheric electron gas that are sufficient to produce the recorded 6300-A emission rates. The sensitivity of these results to uncertainties of the assumed spacecraft potential and thermospheric composition has been investigated and found to be important, but does not alter the conclusion that precipitating electrons are a fundamental link in the production of SAR arcs.

Affiliated with

Also associated with

No associations

Rating

A possible energy source to power stable auroral red arcs - Precipitating electrons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A possible energy source to power stable auroral red arcs - Precipitating electrons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A possible energy source to power stable auroral red arcs - Precipitating electrons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-858953