The excitation of near-UV emission by H/+/, H/0/, and He/+/ impact on CO2 and N2O at 0.7-10 keV

Details The excitation of near-UV emission by H/+/, H/0/, and He/+/ impact on CO2 and N2O at 0.7-10 keV The excitation of near-UV emission by H/+/, H/0/, and He/+/ impact on CO2 and N2O at 0.7-10 keV

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.3727m&link_type=abstract

Journal of Geophysical Research, vol. 80, Sept. 1, 1975, p. 3727-3730. NSF-supported research.

Astronomy and Astrophysics

Astronomy

6

Emission Spectra, Ionic Collisions, Molecular Collisions, Near Ultraviolet Radiation, Proton Impact, Astronomical Models, Carbon Dioxide, Collision Parameters, Molecular Ions, Monochromators, Nitric Oxide, Radiant Flux Density, Ultraviolet Spectra, Vibrational Spectra

Scientific paper

An analysis of the source and intensity of near-ultraviolet radiation resulting from collisions of H(+), H(0), and He(+) with the isoelectronic molecules CO2 and N2O. The collision energy region considered (0.7-10 keV) is important because the cross section maxima for production of major emission features arising from these collisions occur in this range. The present collision experiments simulate some of the optical excitation processes that occur in the interaction of the solar wind with the atmospheres of Mars and Venus, as well as any proton auroral phenomena occurring on these planets. The near-UV emission spectra are found to be quite intense; they consist almost exclusively of emissions from the excited molecular ions CO2(+) and N2O(+). These findings suggest that there is very little momentum transfer in the observed collisions, since there are no emissions from fragments of the parent molecules.

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