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The source of Saturn's stratospheric water

hal.structure.identifierASP 2018
dc.contributor.authorCAVALIÉ, T.
dc.contributor.authorHUE, Vincent
hal.structure.identifierMax-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research [MPS]
dc.contributor.authorHARTOGH, Paul
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorLELLOUCH, Emmanuel
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorMORENO, Raphael
dc.contributor.authorCASSIDY, Timothy A.
dc.contributor.authorJARCHOW, Christopher
hal.structure.identifierASP 2018
dc.contributor.authorDOBRIJEVIC, M.
dc.date.conference2018-10-21
dc.description.abstractEnInfrared Space Observatory observations demonstrated that water (H2O) and other species like carbon monoxide (CO) are supplied in giant planet upper atmospheres by external sources: interplanetary dust particle, icy rings and/or satellites, large comet impacts. These sources have different spatio-temporal properties that we can use to discriminate them. At Saturn, stratospheric CO was probably deposited by an ancient comet impact. For water, the situation remains unclear, even if Enceladus and its water geysers are promising candidates. In this paper, we model altitude-latitude distributions of water in Saturn's stratosphere and compare them with Herschel PACS and HIFI observations to determine its source. Herschel observations have already enabled the detection of a water torus at the orbital distance of Enceladus. A fraction of this water is predicted to rain on Saturn. We test this prediction and compare it to other possible sources.
dc.language.isoen
dc.title.enThe source of Saturn's stratospheric water
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.conference.titleAmerican Astronomical Society, DPS meeting #50, id.500.04 held 21-26 October 2018 - Knoxville, Tenessee US
bordeaux.countryUS
bordeaux.conference.cityKnoxville, Tenessee
bordeaux.peerReviewedoui
hal.identifierhal-01904649
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2018-10-26
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01904649v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=CAVALI%C3%89,%20T.&HUE,%20Vincent&HARTOGH,%20Paul&LELLOUCH,%20Emmanuel&MORENO,%20Raphael&rft.genre=unknown


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