Electron-impact excitation heating rates in the atmosphere of Titan

Laurence Campbell, Hidetoshi Kato, Michael Brunger, Mark Bradshaw

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    A previous study of various heating rates in the atmosphere of Titan included electron-impact excitation of molecular nitrogen as one component. This work examines this component in more detail, using a statistical equilibrium calculation to avoid approximations made in the earlier work. The sensitivity of the results to different cross-section sets is investigated. It is found that using recent and more physical cross sections for vibrational excitation produces a significant increase in the heating rate. On the other hand, using more accurate cross sections for the electronic states had little apparent effect on the heating rates when used within the approximations made in the previous model. However, the inclusion of more transitions in this study produces a significant increase in the electronic state heating rates, as states that were originally neglected are now accounted for here.

    Original languageEnglish
    Article numberA09320
    Pages (from-to)A09320-1-A09320-8
    Number of pages8
    JournalJournal of Geophysical Research
    Volume115
    Issue number9
    DOIs
    Publication statusPublished - 2010

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