Other
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..175m&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 33, Feb. 1985, p. 175-181.
Other
6
Auroras, Far Ultraviolet Radiation, Satellite Imagery, Ultraviolet Spectra, Absorption Cross Sections, Electron Flux Density, Electron Transitions, Emission Spectra, Night Sky, Secondary Emission
Scientific paper
Recent far-ultraviolet spectra of four nightside auroras observed with the extreme ultraviolet (EUV) spectrometer aboard the STP 78-1 satellite (Bowyer et al., 1981) are discussed in terms of two secondary-electron-flux distribution models. One of these is based on calculations published by Rees and Maeda (1973) and the other on electron-flux observations. Using the 1084 A NII line as the norm, the relative intensities of several lines in the range 900-1400 A could be fitted equally well by either model, indicating that some of these emission ratios are somewhat independent of the energy dependence of the secondary-electron flux. The ratio of the NI 1243 A to 1084 A emission is seen to yield an effective correlation for the other observed emissions and a reasonably consistent estimate of the penetration depth of the aurora.
Chakrabarti Sangeeta
Favin S.
Linevsky Milton J.
Meng Ching I.
Monchick Louis
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