Physics
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990kosis..28..413v&link_type=abstract
Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 28, May-June 1990, p. 413-417. In Russian.
Physics
Ionospheric Electron Density, Molecular Excitation, Plasma Oscillations, Plasma-Electromagnetic Interaction, Recombination Reactions, Nitrogen, Oxygen Atoms, Particle Emission, Vibrational Spectra, Wave Interaction
Scientific paper
It is pointed out that, under the effect of high-power electromagnetic waves on the ionospheric plasma, initially heated thermal electrons can efficiently transfer energy to the vibrational levels of molecular nitrogen. The formation of vibrationally excited molecular nitrogen in the region of the main ionospheric maximum leads to an increase in the recombination rate and a drop in the density of electrons. Theoretical calculations have shown that this effect substantially exceeds the effect of the diffusional removal of plasma from the heated region. These considerations can also explain observed variations of emissions of unstable oxygen atoms.
Izakova T. M.
Vlasov Michael N.
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