Model calculation of the N2(+) first negative intensity and vibrational enhancement from energetic incident O(+) energy spectra

Details Model calculation of the N2(+) first negative intensity and vibrational enhancement from energetic incident O(+) energy spectra Model calculation of the N2(+) first negative intensity and vibrational enhancement from energetic incident O(+) energy spectra

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.8653i&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A6, June 1, 1992, p. 8653-8660.

Physics

2

Atmospheric Models, Energy Spectra, Ion Emission, Magnetic Storms, Nitrogen Ions, Oxygen Ions, Atmospheric Heating, Auroras, Midlatitude Atmosphere, Particle Precipitation, Scattering Cross Sections

Scientific paper

The O(+) transport model of Ishimoto et al. (1992) was used (in conjunction with measured N2(+) 1 N cross sections observed by ground optical measurements at Hawaii and Brazil) to investigate whether energetic O(+) ions can produce vibrationally enhanced N2(+) 1 N band emissions. Various realistic O(+) energy spectra were selected to calculate the N2(+) 1 N (0-0), (1-1), and (2-2) band emissions for a comparison with the observations. Results show that the majority of the O(+) must have energies below 10 keV to produce the observed vibrational enhancement, and that the total energy flux must be of the order of 10 erg/sq sm per sec. Such energy flux wound also cause peak atmospheric heating a factor of 3 larger than that due to the noon solar extreme UV energy deposition.

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