Physics
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.2715f&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 93, April 1, 1988, p. 2715-2724.
Physics
13
Auroral Zones, Electron Precipitation, Secondary Emission, Dynamics Explorer 2 Satellite, Electron Energy, Spectrum Analysis, Statistical Analysis
Scientific paper
Results are presented from a statistical study of the spectral characteristics of the (power-law-portion) secondary electrons associated with inverted-V electron precipitation events (IVEs). A total of 106 IVEs observed at low altitudes (below 1000 km) by the DE 2 spacecraft are included in data base. Spectral parameters for the electrons between 20 eV and 100 eV are plotted against the different parameters pertaining to the locations of the IVEs and the primary beams to determine their empirical dependences. It is found that the differential spectrum of the secondary electrons can be modeled by a power law, J proportional to E exp -gamma, with an averaged gamma of 1.85. This spectral parameter is relatively insensitive to the variation of locations of the IVEs, but it depends on the primary beam parameters. These results are compared with predictions, and theories on the generation of the low-energy auroral power-law secondary electrons are assessed. The analysis shows that collisional processses are the dominant source of the secondary electrons.
Fung Shing F.
Hoffman Robert A.
No associations
LandOfFree
On the spectrum of the secondary auroral 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 On the spectrum of the secondary auroral electrons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the spectrum of the secondary auroral electrons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-849556