ISSN:
0992-7689
Keywords:
Ionospheric particle precipitation
;
Magnetospheric physics
;
Annual phenomena
;
Energetic particle
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The PULSAUR II rocket was launched from Andøya Rocket Range at 23.43 UT on 9 February 1994 into a pulsating aurora. In this paper we focus on the observations of precipitating electrons and auroral X-rays. By using models it is possible to deduce the electron energy spectrum from X-ray measurements. Comparisons are made between the deduced electron fluxes and the directly measured electron fluxes on the rocket. We found the shape of the observed and the deduced electron spectra to fit very well, with almost identical e-folding energies in the energy range from 10 keV to ∼ 60–80 keV. For the integrated fluxes from 10.8 to 250 keV, we found a discrepancy of 30%. By combining two models, we have found a good method of deducing the electron precipitation from X-ray measurements. The discrepancies between calculations and measurements are in the range of the uncertainties in the measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s00585-998-0148-0
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