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Detailed Reference Information |
Makarov, O.P., Kanik, I. and Ajello, J.M. (2003). Electron impact dissociative excitation of O2: 1. Kinetic energy distributions of fast oxygen atoms. Journal of Geophysical Research 108. doi: 10.1029/2000JE001422. issn: 0148-0227. |
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The kinetic energy distribution of oxygen atoms resulting from electron impact dissociation of O2 has been measured. A high-resolution vacuum ultraviolet spectrometer was employed for the measurement of the OI(115.2 nm, 130.4 nm, 135.6 nm) fine-structure emission line profiles at 35 eV and 100 eV electron impact energies. The deconvolved line profiles of atomic oxygen reveal the existence of a broad line profile (~30--40 m¿ full width at half maximum) produced from a combination of dissociative excitation and dissociative ionization excitation processes. The atomic oxygen kinetic energy distributions at 100 eV electron impact energy spans the energy range from 1 to 10 eV, with a peak value near 1 eV. The excitation functions of OI(115.2 nm, 130.4 nm, 135.6 nm) were measured in the vicinity of threshold, from 14 to 50 eV. The PACS classification is 34.80.Gs (electron scattering-molecular dissociation) and 33.50Dq (molecular spectra-fluorescence). |
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Abstract |
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Keywords
Planetology, Solar System Objects, Instruments and techniques, Planetology, Comets and Small Bodies, Radiation and spectra, Atmospheric Composition and Structure, Airglow and aurora, Planetology, Comets and Small Bodies, Atmospheres--composition and chemistry, Planetology, Solar System Objects, Jovian satellites |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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