Electron Impact Excitation of Molecular Nitrogen

Details Electron Impact Excitation of Molecular Nitrogen Electron Impact Excitation of Molecular Nitrogen

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa41a0259j&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA41A-0259

Physics

2400 Ionosphere (6929), 7546 Transition Region, 9800 General Or Miscellaneous

Scientific paper

Molecular nitrogen is the main atmospheric constituent of Earth, Titan and Triton. Electron collisions with this molecule are responsible for much of the observed emission in the Earth's dayglow, nightglow, and aurora. Further, the successful insertion of the Cassini spacecraft into orbit around Saturn, and the subsequent and continuing observations of Titan's atmosphere with the onboard UVIS experiment make the determination of accurate N2 excitation parameters (e.g., cross sections, oscillator strengths, etc.) particularly timely. An overview of recent experimental investigations into electron-N2 collision properties will be presented. Particular emphasis will be placed on results with significant impact on the interpretation and modeling of atmospheric emission phenomena.
Acknowledgement: This work was carried out at JPL, Caltech, under contract with NASA and at CSUF, with support from the NSF AMO Physics Division and NASA's OPR program.

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