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Photochemistry of C3Hp hydrocarbons in Titan's stratosphere revisited

hal.structure.identifierSSE 2013
dc.contributor.authorHÉBRARD, Eric
hal.structure.identifierSSE 2013
dc.contributor.authorDOBRIJEVIC, M.
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorLOISON, Jean-Christophe
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBERGEAT, A.
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorHICKSON, K. M.
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCARALP, F.
dc.date.issued2013-04
dc.identifier.issn0004-6361
dc.description.abstractEnThe description of C3 hydrocarbon chemistry in current photochemical models of Titan's atmosphere is found to be far from complete. We have carefully investigated the photochemistry involving C3Hp compounds in the atmosphere of Titan (considering both photolysis and neutral reactions), which considerably impacts the abundances of many other hydrocarbon species (including C2 compounds). Model results indicate that three species (C3, c-C3H2 and C3H3) could be abundant enough to be present in the Cassini/INMS data. Because the error bars on predicted C3-hydrocarbon abundances are considerably larger than those of the observational data, new experimental and theoretical studies targeting the measurement of low-temperature reaction rate constants and product branching ratios are required to reduce current model uncertainties. In particular, we highlight 30 "key reactions", the uncertainty factors of which should be lowered to improve the quality of photochemical models involving C3Hp molecules.
dc.language.isoen
dc.publisherEDP Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enplanets and satellites: individual: Titan
dc.subject.enplanets and satellites: atmospheres
dc.subject.enplanets and satellites: composition
dc.subject.enastrochemistry
dc.title.enPhotochemistry of C3Hp hydrocarbons in Titan's stratosphere revisited
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201220686
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.page132
bordeaux.volume552
bordeaux.peerReviewedoui
hal.identifierhal-00833258
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00833258v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2013-04&rft.volume=552&rft.spage=132&rft.epage=132&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=H%C3%89BRARD,%20Eric&DOBRIJEVIC,%20M.&LOISON,%20Jean-Christophe&BERGEAT,%20A.&HICKSON,%20K.%20M.&rft.genre=article


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