Record number :
2313537
Title of article :
Sensitivity of a Titan ionospheric model to the ion-molecule reaction parameters
Author/Authors :
Carrasco، نويسنده , , N. and Alcaraz، نويسنده , , C. and Dutuit، نويسنده , , O. and Plessis، نويسنده , , S. and Thissen، نويسنده , , R. and Vuitton، نويسنده , , V. and Yelle، نويسنده , , R. and Pernot، نويسنده , , P.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
14
From page :
1644
To page :
1657
Abstract :
Various aspects of ion-molecule reactions for Titan ionospheric chemistry modeling are reviewed in this work: temperature/collision energy effects on reaction rates and, more importantly, on products distributions; differential reactivity of isomers of ions; reactivity of excited states of ions; pathways to the building of complex ions. We evaluate here the extent to which these points affect model predictions. We find that the present limiting factors to model predictivity are the model incompleteness for heavy ion production pathways; the differential reactivity of isomers; and, to a lesser degree, the temperature effects on the branching ratios of ion-molecule reactions. Extensive experimental studies are required to fill these gaps in ion-molecule reactivity knowledge.
Keywords :
Ionospheric chemistry model , uncertainty propagation , Sensitivity analysis , branching ratio , Ion-molecule reaction , Titan
Journal title :
PLANETARY AND SPACE SCIENCE
Serial Year :
2008
Link To Document :
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