Low-energy proton bombardment of carbon dioxide

Details Low-energy proton bombardment of carbon dioxide Low-energy proton bombardment of carbon dioxide

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974ijrsp...3..416r&link_type=abstract

Indian Journal of Radio and Space Physics, vol. 3, Dec. 1974, p. 416-418.

Physics

Space Physics

Carbon Dioxide, Molecular Excitation, Molecular Spectra, Proton Irradiation, Spectral Bands, Balmer Series, Charge Exchange, Comet Tails, H Alpha Line, H Beta Line, Microwave Emission, Particle Collisions, Planetary Atmospheres

Scientific paper

Carbon dioxide, the major constituent of Martian and Venusian atmospheres, was bombarded by protons having energies in the range 0.5 to 2 keV. The excited spectra in order of intensity consisted of the Angstrom and 3PG system of CO, comet tail bands of CO(+), and H-alpha and H-beta lines. It was observed that the intensities of Angstrom and 3PG bands increase and those of comet tail bands of CO(+) and H-beta lines decrease with proton energy. The excitation of the above bands has been attributed to the dissociation of CO2 and charge exchange with protons. The spectra excited by proton bombardment were compared with those obtained by microwave discharge of CO2 and their differences explained.

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