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Evidence for auroral influence on Jupiter’s nitrogen and oxygen chemistry revealed by ALMA

hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorCAVALIÉ, T
hal.structure.identifierMax-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research [MPS]
dc.contributor.authorREZAC, L
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorMORENO, R
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorLELLOUCH, E
hal.structure.identifierPôle Planétologie du LESIA
dc.contributor.authorFOUCHET, T
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBENMAHI, B
hal.structure.identifierSouthwest Research Institute [San Antonio] [SwRI]
dc.contributor.authorGREATHOUSE, T
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSINCLAIR, J
hal.structure.identifierSouthwest Research Institute [San Antonio] [SwRI]
dc.contributor.authorHUE, V
hal.structure.identifierMax-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research [MPS]
dc.contributor.authorHARTOGH, P
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorDOBRIJEVIC, M
hal.structure.identifierPLANETO - LATMOS
dc.contributor.authorCARRASCO, Nathalie
hal.structure.identifierPLANETO - LATMOS
dc.contributor.authorPERRIN, Zoé
dc.date.issued2023-07-06
dc.description.abstractEnThe localized delivery of new long-lived species to Jupiter's stratosphere by comet Shoemaker-Levy 9 in 1994 opened a window to constrain Jovian chemistry and dynamics by monitoring the evolution of their vertical and horizontal distributions. However, the spatial distributions of CO and HCN, two of these long-lived species, had never been jointly observed at high latitudinal resolution. Atacama large millimeter/submillimeter array observations of HCN and CO in March 2017 show that CO was meridionally uniform and restricted to pressures lower than 3 ± 1 mbar. HCN shared a similar vertical distribution in the low-to mid-latitudes, but was depleted at pressures between 2 +2 −1 and 0.04 +0.07 −0.03 mbar in the aurora and surrounding regions, resulting in a drop by two orders of magnitude in column density. We propose that heterogeneous chemistry bonds HCN on large aurora-produced aerosols at these pressures in the Jovian auroral regions causing the observed depletion.
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enEvidence for auroral influence on Jupiter’s nitrogen and oxygen chemistry revealed by ALMA
dc.typeArticle de revue
dc.identifier.doi10.1038/s41550-023-02016-7
dc.subject.halPlanète et Univers [physics]
bordeaux.journalNature Astronomy
bordeaux.page1048-1055
bordeaux.volume7
bordeaux.peerReviewedoui
hal.identifierhal-04168735
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04168735v1
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