|
Detailed Reference Information |
Abel, G.A., Fazakerley, A.N. and Johnstone, A.D. (2002). Statistical distributions of field-aligned electron events in the near-equatorial magnetosphere observed by the Low Energy Plasma Analyzer on CRRES. Journal of Geophysical Research 107: doi: 10.1029/2001JA005073. issn: 0148-0227. |
|
Low energy (≤100 eV--10 keV) field-aligned electrons are often observed by the Low Energy Plasma Analyzer (LEPA) on the CRRES satellite. These electrons usually occur in bursts of <10 min duration and are mostly bidirectional, though opposing fluxes are not always equal. The events can be seen from L-values of 5 outward (to at least L = 7) and from 0800 magnetic local time (MLT) through midnight to 1400 MLT. Larger numbers of events were seen at the outer edge of CRRES' coverage and in the evening and early morning sectors, when the apogee of CRRES was at higher latitudes. The bursts normally occur within 20 min of substorm onset. High-latitude, low-altitude spacecraft often observe upgoing field-aligned electron beams. We suggest that these are the source of the field-aligned electron beams seen by CRRES near the equator. |
|
|
|
BACKGROUND DATA FILES |
|
|
Abstract |
|
|
|
|
|
Keywords
Magnetospheric Physics, Energetic particles, precipitating, Magnetospheric Physics, Magnetosphere--inner, Magnetospheric Physics, Storms and substorms, Magnetospheric Physics, Magnetosphere/ionosphere interactions |
|
Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
|
|
|