Electron-impact of the OI 1641.3 A line emission

Details Electron-impact of the OI 1641.3 A line emission Electron-impact of the OI 1641.3 A line emission

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..506e&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, June 1986, p. 506-508.

Physics

11

Electron Impact, Electron Scattering, Line Spectra, Oxygen Spectra, Ultraviolet Spectroscopy, Upper Atmosphere, Atomic Spectra, Electron Bombardment, Scattering Cross Sections, Wavelengths

Scientific paper

The cross section for the dissociative excitation of the forbidden OI(2p41D-3s3S, 1641.3 A) transition by electron impact on O2 is measured. At 100 eV, a cross section value of 1.22 x 10 to the -23/sq cm + 2 - 35 percent is found. This result is consistent with recent estimates of this branching ratio from theoretical calculations and aeronomical observations and supports the suggestion by Meier et al. (1985) that observation of the OI 1641.3 A line would be useful for remote monitoring of atomic oxygen in the upper atmosphere.

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