Towards a reduction of the bimolecular reaction model for Titan ionosphere
DOBRIJEVIC, M.
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
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Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
DOBRIJEVIC, M.
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
< Reduce
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Language
en
Article de revue
This item was published in
International Journal of Chemical Kinetics. 2008, vol. 40, n° 11, p. 699-709
Wiley
English Abstract
The aim of this paper is to highlight the skeletal chemistry responsible for the richionospheric chemistry observed in Titan's atmosphere. The present database is representedby about 700 ion–molecule reactions, which are ...Read more >
The aim of this paper is to highlight the skeletal chemistry responsible for the richionospheric chemistry observed in Titan's atmosphere. The present database is representedby about 700 ion–molecule reactions, which are not all important to describe the system. Ourcriterion to reduce the list of reactions is to reproduce a reference mass spectrum within itsuncertainties. This reference mass spectrum is obtained with the complete reaction databaseand with neutral densities optimized for the INMS mass spectrum measured at 1200 km duringthe T5 flyby. We compared two mechanism reduction methods, brute force screening and globalsensitivity analysis. The analysis of the residual scheme with only 35 bimolecular reactionshighlights several patterns, concerning in particular ionic growth processes and introductionof nitrogen to the ionic species.Read less <
Origin
Hal imported