Metastable 2P oxygen ions in the daytime thermosphere

Details Metastable 2P oxygen ions in the daytime thermosphere Metastable 2P oxygen ions in the daytime thermosphere

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.1026w&link_type=abstract

Journal of Geophysical Research, vol. 80, Mar. 1, 1975, p. 1026-1029.

Physics

4

Airglow, Metastable State, Oxygen Ions, Photoionization, Thermosphere, Atmospheric Ionization, Auroras, Daytime, Electron Orbitals, Electron Scattering, Ionospheric Ion Density, Oxygen Spectra, Satellite Observation

Scientific paper

Dayglow radiation at 7319 A has been measured by the visible airglow experiment on Atmosphere Explorer C. The overhead surface brightness measured at 15.4 hours local solar time on January 27, 1974, was 250 plus or minus 10 R. The volume emission rate had a peak value of 20 photons per cu cm per sec at a height of about 210 km. The data show clear evidence of quenching by collisons with thermal electrons at the higher altitudes and with neutral particles at lower altitudes. Quenching by neutral particles occurs at nearly the gas kinetic rate.

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