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| Titel |
Simultaneous measurements of X-rays and electrons during a pulsating aurora |
| VerfasserIn |
N. Østgaard, J. Stadsnes, K. Aarsnes, F. Søraas, K. Måseide, M. Smith, J. Sharber |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 16, no. 2 ; Nr. 16, no. 2, S.148-160 |
| Datensatznummer |
250013151
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| Publikation (Nr.) |
 copernicus.org/angeo-16-148-1998.pdf |
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| Zusammenfassung |
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 ke V to ~60–80 ke
V. For the integrated fluxes from 10.8 to 250 ke V, 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.
Key words. Ionospheric particle precipitation ·
Magnetospheric physics · Annual phenomena · Energetic particle |
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