Spectrum of photoelectrons in Earth's upper atmosphere during solar flares

Details Spectrum of photoelectrons in Earth's upper atmosphere during solar flares Spectrum of photoelectrons in Earth's upper atmosphere during solar flares

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985rpspr...6...29a&link_type=abstract

In its USSR Rept.: Space (JPRS-USP-85-005) p 29 (SEE N86-14111 04-88) Transl. into ENGLISH from Kosmich. Issled. (Moscow), v.

Physics

Photoelectron Spectroscopy, Solar Flares, Solar Terrestrial Interactions, Upper Atmosphere, Auger Effect, Electron Energy, Ionospheric Disturbances, Spectral Energy Distribution, Vertical Distribution

Scientific paper

A theoretical study of variations of the energy distribution of photoelectrons in the ionosphere during solar flares is performed for the example of the flares of February 25, 1969 and December 27, 1968. The role of Auger electrons in the formation of photoelectrons with energies exceeding 150 to 200 eV is shown to be dominant. The calculation model is confirmed by experimental data on variations of photoelectron intensity and upper-atmospheric emission. It is concluded that the proposed model is suitable for determining the degree of ionospheric disturbances during flares, especially above 100 km, where the role of photoelectrons becomes drastically more significant.

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