Computer Science – Sound
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.152..257s&link_type=abstract
In ESA European Rocket and Balloon Programs and Related Res. p 257-262 (SEE N81-10914 01-99)
Computer Science
Sound
1
Auroral Arcs, Electron Energy, Electronic Spectra, Magnetic Storms, Sounding Rockets, Boundary Layers, Electron Flux Density, Particle Acceleration, Plasma Sheaths
Scientific paper
Results from the first two Substorm GEOS rockets are presented. These rockets, as well as the third one, were launched from ESRANGE on January 27, 1979 into different substorm phases. The first rocket went into an active pre-breakup evening arc and the second one into a breakup close to magnetic midnight. Electron spectra of downcoming particles measured by a narrow energy bandwidth detector show very narrow energy peaks as soon as the integral energy fluxes are high. These peaks always show populations of two different characteristic energies above the peak energy. One of the populations has properties similar to those found in the boundary layer plasma and the other one seems to be of plasma sheet origin. The plasma sheet-like population is also seen where there are no signs of energy peaks, for example equatorward of the arc. The boundary layer plasma is exclusively connected with the signatures of acceleration.
Eliasson Lars
Lundin Richard
Sandahl Ingrid
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