Hydrocarbon ions in the ionosphere of Titan

J. L. Fox, Roger Yelle

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

We have constructed a new model of the ionosphere of Titan that includes 67 species and 626 reactions. Although N 2 + is the major ion produced over most of the ionosphere, the ionization flows to ions whose parent neutrals have lower ionization potentials and to ions formed from species with large proton affinities. In contrast to other models, which have predicted that HCNH + should be the major ion, our calculations suggest that the major ions at and below the ion peak are hydrocarbon ions, and H, C, and N-containing ions. Our predicted peak electron density for a solar zenith angle of 60° is about 7.5 × 103 cm -3 at an altitude of 1040 km.

Original languageEnglish (US)
Article number97GL02051
Pages (from-to)2179-2182
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number17
StatePublished - 1997
Externally publishedYes

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Titan
ionospheres
ionosphere
hydrocarbons
hydrocarbon
ion
ions
ionization
zenith angle
zenith
ionization potentials
electron density
affinity
protons

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Hydrocarbon ions in the ionosphere of Titan. / Fox, J. L.; Yelle, Roger.

In: Geophysical Research Letters, Vol. 24, No. 17, 97GL02051, 1997, p. 2179-2182.

Research output: Contribution to journalArticle

Fox, JL & Yelle, R 1997, 'Hydrocarbon ions in the ionosphere of Titan', Geophysical Research Letters, vol. 24, no. 17, 97GL02051, pp. 2179-2182.
Fox, J. L. ; Yelle, Roger. / Hydrocarbon ions in the ionosphere of Titan. In: Geophysical Research Letters. 1997 ; Vol. 24, No. 17. pp. 2179-2182.
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