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Constraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations

hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorMARQUES OLIVEIRA, J.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorSICARDY, B.
hal.structure.identifierUniversidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
dc.contributor.authorGOMES-JÚNIOR, A. R.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
dc.contributor.authorORTIZ, J. L.
hal.structure.identifierJohns Hopkins University [JHU]
dc.contributor.authorSTROBEL, D. F.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorBERTRAND, T.
hal.structure.identifierLaboratoire de Météorologie Dynamique (UMR 8539) [LMD]
dc.contributor.authorFORGET, F.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorLELLOUCH, E.
hal.structure.identifierInstitut Polytechnique des Sciences Avancées [IPSA]
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorDESMARS, J.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorBÉRARD, D.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorDORESSOUNDIRAM, A.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorLECACHEUX, J.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorLEIVA, R.
hal.structure.identifierComisión Nacional de Investigación y Desarrollo Aeroespacial [CONIDA]
hal.structure.identifierObservatorio Astronómico de Moquegua
dc.contributor.authorMEZA, E.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorROQUES, F.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorSOUAMI, D.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorWIDEMANN, T.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
dc.contributor.authorSANTOS-SANZ, P.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
dc.contributor.authorMORALES, N.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
dc.contributor.authorDUFFARD, R.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
hal.structure.identifierFlorida Space Institute [Orlando] [FSI]
dc.contributor.authorFERNÁNDEZ-VALENZUELA, E.
hal.structure.identifierInstituto de Astrofísica de Andalucía [IAA]
dc.contributor.authorCASTRO-TIRADO, A. J.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorBRAGA-RIBAS, F.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorMORGADO, B. E.
hal.structure.identifierUniversidade Federal do Rio de Janeiro [Brasil] = Federal University of Rio de Janeiro [Brazil] = Université fédérale de Rio de Janeiro [Brésil] [UFRJ]
dc.contributor.authorASSAFIN, M.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorCAMARGO, J. I. B.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorVIEIRA-MARTINS, R.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorBENEDETTI-ROSSI, G.
hal.structure.identifierUniversidade Federal do Rio de Janeiro [Brasil] = Federal University of Rio de Janeiro [Brazil] = Université fédérale de Rio de Janeiro [Brésil] [UFRJ]
dc.contributor.authorSANTOS-FILHO, S.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorBANDA-HUARCA, M. V.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorQUISPE-HUAYNASI, F.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorPEREIRA, C. L.
hal.structure.identifierObservatório Nacional [Rio de Janeiro] [ON]
dc.contributor.authorROMMEL, F. L.
dc.contributor.authorMARGOTI, G.
hal.structure.identifierPolo Educacional Sesc [Rio de Janeiro]
dc.contributor.authorDIAS-OLIVEIRA, A.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorCOLAS, F.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorBERTHIER, J.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
hal.structure.identifierUniversité de Lille
dc.contributor.authorRENNER, S.
hal.structure.identifierUniversidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] [UPV/EHU]
dc.contributor.authorHUESO, R.
hal.structure.identifierUniversidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] [UPV/EHU]
dc.contributor.authorPÉREZ-HOYOS, S.
hal.structure.identifierUniversidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] [UPV/EHU]
dc.contributor.authorSÁNCHEZ-LAVEGA, A.
hal.structure.identifierUniversidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] [UPV/EHU]
dc.contributor.authorROJAS, J. F.
hal.structure.identifierInternational Occultation Timing Association [IOTA]
hal.structure.identifierInternationale Amateursternwarte [Mittenwalde] [IAS]
dc.contributor.authorBEISKER, W.
hal.structure.identifierInternational Occultation Timing Association [IOTA]
hal.structure.identifierInternationale Amateursternwarte [Mittenwalde] [IAS]
dc.contributor.authorKRETLOW, M.
dc.contributor.authorHERALD, D.
dc.contributor.authorGAULT, D.
dc.contributor.authorBATH, K. -L.
dc.contributor.authorBODE, H. -J.
dc.contributor.authorBREDNER, E.
dc.contributor.authorGUHL, K.
dc.contributor.authorHAYMES, T. V.
dc.contributor.authorHUMMEL, E.
dc.contributor.authorKATTENTIDT, B.
dc.contributor.authorKLÖS, O.
dc.contributor.authorPRATT, A.
dc.contributor.authorTHOME, B.
dc.contributor.authorAVDELLIDOU, C.
dc.contributor.authorGAZEAS, K.
dc.contributor.authorKARAMPOTSIOU, E.
dc.contributor.authorTZOUGANATOS, L.
dc.contributor.authorKARDASIS, E.
dc.contributor.authorCHRISTOU, A. A.
dc.contributor.authorXILOURIS, E. M.
dc.contributor.authorALIKAKOS, I.
dc.contributor.authorGOURZELAS, A.
dc.contributor.authorLIAKOS, A.
dc.contributor.authorCHARMANDARIS, V.
dc.contributor.authorJELÍNEK, M.
dc.contributor.authorŠTROBL, J.
dc.contributor.authorEBERLE, A.
dc.contributor.authorRAPP, K.
dc.contributor.authorGÄHRKEN, B.
dc.contributor.authorKLEMT, B.
dc.contributor.authorKOWOLLIK, S.
dc.contributor.authorBITZER, R.
dc.contributor.authorMILLER, M.
dc.contributor.authorHERZOGENRATH, G.
dc.contributor.authorFRANGENBERG, D.
dc.contributor.authorBRANDIS, L.
dc.contributor.authorPÜTZ, I.
dc.contributor.authorPERDELWITZ, V.
dc.contributor.authorPIEHLER, G. M.
dc.contributor.authorRIEPE, P.
dc.contributor.authorVON POSCHINGER, K.
dc.contributor.authorBARUFFETTI, P.
dc.contributor.authorCENADELLI, D.
dc.contributor.authorCHRISTILLE, J. -M.
dc.contributor.authorCIABATTARI, F.
dc.contributor.authorDI LUCA, R.
dc.contributor.authorALBORESI, D.
dc.contributor.authorLETO, G.
dc.contributor.authorZANMAR SANCHEZ, R.
dc.contributor.authorBRUNO, P.
dc.contributor.authorOCCHIPINTI, G.
dc.contributor.authorMORRONE, L.
dc.contributor.authorCUPOLINO, L.
dc.contributor.authorNOSCHESE, A.
dc.contributor.authorVECCHIONE, A.
dc.contributor.authorSCALIA, C.
dc.contributor.authorLO SAVIO, R.
dc.contributor.authorGIARDINA, G.
dc.contributor.authorKAMOUN, S.
dc.contributor.authorBARBOSA, R.
dc.contributor.authorBEHREND, R.
dc.contributor.authorSPANO, M.
dc.contributor.authorBOUCHET, E.
dc.contributor.authorCOTTIER, M.
dc.contributor.authorFALCO, L.
dc.contributor.authorGALLEGO, S.
dc.contributor.authorTORTORELLI, L.
dc.contributor.authorSPOSETTI, S.
dc.contributor.authorSUSSENBACH, J.
dc.contributor.authorVAN DEN ABBEEL, F.
dc.contributor.authorANDRÉ, P.
dc.contributor.authorLLIBRE, M.
dc.contributor.authorPAILLER, F.
dc.contributor.authorARDISSONE, J.
dc.contributor.authorBOUTET, M.
dc.contributor.authorSANCHEZ, J.
dc.contributor.authorBRETTON, M.
dc.contributor.authorCAILLEAU, A.
dc.contributor.authorPIC, V.
dc.contributor.authorGRANIER, L.
dc.contributor.authorCHAUVET, R.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorCONJAT, M.
dc.contributor.authorDAUVERGNE, J. L.
dc.contributor.authorDECHAMBRE, O.
dc.contributor.authorDELAY, P.
hal.structure.identifierSociété Astronomique de France [SAF]
dc.contributor.authorDELCROIX, M.
hal.structure.identifierSociété Astronomique de France [SAF]
dc.contributor.authorROUSSELOT, L.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorFERREIRA, J.
dc.contributor.authorMACHADO, P.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorTANGA, P.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorRIVET, J. -P.
dc.contributor.authorFRAPPA, E.
dc.contributor.authorIRZYK, M.
dc.contributor.authorJABET, F.
dc.contributor.authorKASCHINSKI, M.
dc.contributor.authorRIEUGNIE, Y.
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorKLOTZ, A. N.
dc.contributor.authorLABREVOIR, O.
dc.contributor.authorLAVANDIER, D.
dc.contributor.authorWALLIANG, D.
dc.contributor.authorLEROY, A.
hal.structure.identifierGéosciences Paris Saclay [GEOPS]
dc.contributor.authorBOULEY, Sylvain
dc.contributor.authorLISCIANDRA, S.
dc.contributor.authorCOLIAC, J. -F.
dc.contributor.authorMETZ, F.
dc.contributor.authorERPELDING, D.
dc.contributor.authorNOUGAYRÈDE, P.
dc.contributor.authorMIDAVAINE, T.
dc.contributor.authorMINIOU, M.
dc.contributor.authorMOINDROT, S.
dc.contributor.authorMOREL, P.
dc.contributor.authorREGINATO, B.
hal.structure.identifierUniversité Paris-Sud - Paris 11 [UP11]
hal.structure.identifierAnalyse, ingénierie et contrôle des micro-organismes [MICROCOSME]
dc.contributor.authorREGINATO, E.
dc.contributor.authorRUDELLE, J.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorTREGON, B.
dc.contributor.authorTANGUY, R.
dc.contributor.authorDAVID, J.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorTHUILLOT, W.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorHESTROFFER, D.
dc.contributor.authorVAUDESCAL, G.
dc.contributor.authorBABA AISSA, D.
dc.contributor.authorGRIGAHCENE, Z.
dc.contributor.authorBRIGGS, D.
dc.contributor.authorBROADBENT, S.
dc.contributor.authorDENYER, P.
dc.contributor.authorHAIGH, N. J.
dc.contributor.authorQUINN, N.
dc.contributor.authorTHURSTON, G.
dc.contributor.authorFOSSEY, S. J.
dc.contributor.authorARENA, C.
dc.contributor.authorJENNINGS, M.
dc.contributor.authorTALBOT, J.
dc.contributor.authorALONSO, S.
dc.contributor.authorROMÁN RECHE, A.
dc.contributor.authorCASANOVA, V.
dc.contributor.authorBRIGGS, E.
dc.contributor.authorIGLESIAS-MARZOA, R.
dc.contributor.authorABRIL IBÁÑEZ, J.
dc.contributor.authorDÍAZ MARTÍN, M. C.
dc.contributor.authorGONZÁLEZ, H.
dc.contributor.authorMAESTRE GARCÍA, J. L.
dc.contributor.authorMARCHANT, J.
dc.contributor.authorORDONEZ-ETXEBERRIA, I.
dc.contributor.authorMARTORELL, P.
dc.contributor.authorSALAMERO, J.
dc.contributor.authorORGANERO, F.
dc.contributor.authorANA, L.
dc.contributor.authorFONSECA, F.
dc.contributor.authorPERIS, V.
dc.contributor.authorBREVIA, O.
dc.contributor.authorSELVA, A.
dc.contributor.authorPERELLO, C.
dc.contributor.authorCABEDO, V.
dc.contributor.authorGONÇALVES, R.
dc.contributor.authorFERREIRA, M.
dc.contributor.authorMARQUES DIAS, F.
dc.contributor.authorDAASSOU, A.
dc.contributor.authorBARKAOUI, K.
dc.contributor.authorBENKHALDOUN, Z.
dc.contributor.authorGUENNOUN, M.
dc.contributor.authorCHOUQAR, J.
dc.contributor.authorJEHIN, E.
dc.contributor.authorRINNER, C.
dc.contributor.authorLLOYD, J.
dc.contributor.authorEL MOUTAMID, M.
dc.contributor.authorLAMARCHE, C.
dc.contributor.authorPOLLOCK, J. T.
dc.contributor.authorCATON, D. B.
dc.contributor.authorKOUPRIANOV, V.
dc.contributor.authorTIMERSON, B. W.
dc.contributor.authorBLANCHARD, G.
dc.contributor.authorPAYET, B.
dc.contributor.authorPEYROT, A.
dc.contributor.authorTENG-CHUEN-YU, J. -P.
dc.contributor.authorFRANÇOISE, J.
dc.contributor.authorMONDON, B.
dc.contributor.authorPAYET, T.
dc.contributor.authorBOISSEL, C.
dc.contributor.authorCASTETS, M.
dc.contributor.authorHUBBARD, W. B.
dc.contributor.authorHILL, R.
dc.contributor.authorREITSEMA, H. J.
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorMOUSIS, O.
dc.contributor.authorBALL, L.
dc.contributor.authorNEILSEN, G.
dc.contributor.authorHUTCHEON, S.
dc.contributor.authorLAY, K.
dc.contributor.authorANDERSON, P.
dc.contributor.authorMOY, M.
dc.contributor.authorJONSEN, M.
dc.contributor.authorPINK, I.
dc.contributor.authorDOWNS, B.
dc.contributor.authorWALTERS, R.
dc.date.issued2022-03
dc.identifier.issn0004-6361
dc.description.abstractEnContext. A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of which yielded a central flash detection. <BR /> Aims: We aimed at constraining Triton's atmospheric structure and the seasonal variations of its atmospheric pressure since the Voyager 2 epoch (1989). We also derived the shape of the lower atmosphere from central flash analysis. <BR /> Methods: We used Abel inversions and direct ray-tracing code to provide the density, pressure, and temperature profiles in the altitude range ~8 km to ~190 km, corresponding to pressure levels from 9 µbar down to a few nanobars. <BR /> Results: (i) A pressure of 1.18 ± 0.03 µbar is found at a reference radius of 1400 km (47 km altitude). (ii) A new analysis of the Voyager 2 radio science occultation shows that this is consistent with an extrapolation of pressure down to the surface pressure obtained in 1989. (iii) A survey of occultations obtained between 1989 and 2017 suggests that an enhancement in surface pressure as reported during the 1990s might be real, but debatable, due to very few high S/N light curves and data accessible for reanalysis. The volatile transport model analysed supports a moderate increase in surface pressure, with a maximum value around 2005-2015 no higher than 23 µbar. The pressures observed in 1995-1997 and 2017 appear mutually inconsistent with the volatile transport model presented here. (iv) The central flash structure does not show evidence of an atmospheric distortion. We find an upper limit of 0.0011 for the apparent oblateness of the atmosphere near the 8 km altitude. <P />Light curves are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/659/A136">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/659/A136</A>
dc.language.isoen
dc.publisherEDP Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enmethods: data analysis
dc.subject.enmethods: observational
dc.subject.enplanets and satellites: atmospheres
dc.subject.enplanets and satellites: physical evolution
dc.subject.entechniques: photometric
dc.subject.enAstrophysics - Earth and Planetary Astrophysics
dc.title.enConstraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/202141443
dc.subject.halPlanète et Univers [physics]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv2201.10450
dc.description.sponsorshipEuropeExploring the outer solar system beyond Neptune using stellar occultations
dc.description.sponsorshipEuropeSmall Bodies: Near and Far
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.page1-43
bordeaux.volume659
bordeaux.peerReviewedoui
hal.identifierinsu-03656916
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-03656916v1
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