Computer Science
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26..581j&link_type=abstract
Planetary and Space Science, vol. 26, June 1978, p. 581-594.
Computer Science
2
Auroral Zones, Electric Fields, Electron Precipitation, Particle Density (Concentration), Proton Precipitation, Backscattering, Charge Distribution, Density Distribution, Lines Of Force, Particle Acceleration
Scientific paper
A time-dependent model of the effect of a parallel electric field on particle precipitation from a closed field-line is constructed. A pattern of field-aligned pitch-angle distributions and energy peaks develops rapidly and then persists unchanged in shape while the intensity decreases for a time of the order of the bounce period of the energetic particles. It is shown that the structures in velocity space are created by the juxtaposition of particles from different source populations. Four sources are found to be sufficient to reproduce the principal features observed frequently by rockets and satellites: A trapped plasma sheet distribution, a loss-cone partially filled by pitch-angle diffusion at the equator, cold ionospheric plasma which has flowed outward along the field line, and particles backscattered from the precipitation into the atmosphere. The model develops density gradients and discontinuities far sharper than any observed, so that any parallel electric field actually occurring in an aurora must be accompanied by strong wave-particle interactions either as part of the accelerating mechanism or as a result of the density gradients produced by it.
No associations
LandOfFree
Precipitation of charged particles by a parallel electric field 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 Precipitation of charged particles by a parallel electric field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precipitation of charged particles by a parallel electric field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-791404