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Monitoring of the temporal evolution of water vapor in the stratosphere of Jupiter with the Odin space telescope between 2002 and 2019

hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBENMAHI, B.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorCAVALIÉ, Thibault
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorDOBRIJEVIC, M.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorBIVER, Nicolas
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorBERMUDEZ-DIAZ, K.
hal.structure.identifierStockholm Observatory, AlbaNova University Center
dc.contributor.authorSANDQVIST, Aage
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorLELLOUCH, Emmanuel
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorMORENO, Raphaël
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorFOUCHET, Thierry
hal.structure.identifierSouthwest Research Institute, Division 15,
dc.contributor.authorHUE, V.
hal.structure.identifierMax-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research [MPS]
dc.contributor.authorHARTOGH, Paul
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBILLEBAUD, Françoise
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorLECACHEUX, Alain
hal.structure.identifierDepartment of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, Sweden
dc.contributor.authorHJALMARSON, Åke
hal.structure.identifierOmnisys Instruments AB, Solna Strandva ?g 78, 171 54, Solna, Sweden
dc.contributor.authorFRISK, Urban
hal.structure.identifierChalmers University of Technology
dc.contributor.authorOLBERG, Michael
dc.date.issued2020
dc.date.conference2020-09-21
dc.description.abstractEnIn July 1994, comet Shoemaker-Levy 9 collided with Jupiter. This has introduced new chemical species into Jupiter"s atmosphere, notably H2O. We observed the disk-averaged emission H2O in Jupiter"s stratosphere at 556.936 GHz between 2002 and 2019 with the Odin space telescope with the initial goal of better constraining vertical eddy mixing (Kzz) in the layers probed by our observations (0.2-5 mbar). The Odin observations show a decrease of about 40% of the line emission from 2002 to 2019. We analyzed these observations by combining a 1D photochemical model with a radiative transfer model to constrain the vertical eddy diffusion Kzz in the stratosphere of Jupiter. We were able to reproduce this decrease by modifying a well-established Kzz profile, in the 0.2 mbar to 5 mbar pressure range. However, the Kzz obtained is incompatible with observations of the main hydrocarbons. We found that even if we increase locally the initial abundances of H2O and CO at impact, the photochemical conversion of H2O and CO to CO2 does not allow us to find the observed decrease of the H2O emission line over time, suggesting that there is another loss mechanism. We propose that auroral chemistry, not accounted for in our model, as a promising candidate to explain the loss of H2O seen by Odin. Modeling the temporal evolution of the chemical species deposited by comet SL9 in the atmosphere of Jupiter with a 2D photochemical model would be the next step in this study.
dc.language.isoen
dc.source.titleEuropean Planetary Science Congress Abstracts
dc.title.enMonitoring of the temporal evolution of water vapor in the stratosphere of Jupiter with the Odin space telescope between 2002 and 2019
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
bordeaux.pageEPSC2020-87
bordeaux.conference.titleEuropean Planetary Science Congress
bordeaux.countryFR
bordeaux.title.proceedingEuropean Planetary Science Congress Abstracts
bordeaux.conference.cityOnline
bordeaux.peerReviewednon
hal.identifierhal-03734077
hal.version1
hal.proceedingsoui
hal.conference.end2020-10-09
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03734077v1
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