Study of energetic particles in the magnetosphere by means of the 'Sambo' international balloon-experiment project

Details Study of energetic particles in the magnetosphere by means of the 'Sambo' international balloon-experiment project Study of energetic particles in the magnetosphere by means of the 'Sambo' international balloon-experiment project

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978izyak..42.1059z&link_type=abstract

(Vsesoiuznaia Konferentsiia po Kosmicheskim Lucham, Yakutsk, USSR, June 1977.) Akademiia Nauk SSSR, Izvestiia, Seriia Fizicheska

Computer Science

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Auroras, Balloon Sounding, Earth Magnetosphere, Energetic Particles, X Ray Spectra, Electron Energy, Electron Precipitation, Particle Acceleration

Scientific paper

The Soviet-French balloon experiment designated 'Sambo 1' was carried out to study the dynamics of energetic electrons (20 keV) during magnetospheric disturbances. This paper analyzes stratospheric measurements of the spectrum of auroral X-ray emission at high latitudes, which were performed during balloon flights from Kiruna, Sweden, eastward to the Ural Mountains. Observations are described in which two types of electron precipitation, one with a soft energy spectrum (around 20 keV) and one with a hard spectrum (about 80 keV and higher), were detected during complex magnetospheric disturbances. It is suggested that two particle-acceleration mechanisms operated at different stages in the magnetospheric disturbances and that the two mechanisms might be acceleration by a large-scale convection field and by a localized induction field.

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