Constraints on the evolution of the Triton atmosphere from occultations: 1989-2022

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorSorbonne Université-
Autor(es): dc.contributorIndian Institute of Space Science and Technology-
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorLaboratório Interinstitucional de E-Astronomia -LIneA-
Autor(es): dc.contributorAmerican Association of Variable Star Observers (AAVSO)-
Autor(es): dc.contributorPhysical Research Laboratory-
Autor(es): dc.contributorUniversidade Do Rio de Janeiro -Observatório Do Valongo-
Autor(es): dc.contributorInstitut Polytechnique des Sciences Avancées Ipsa-
Autor(es): dc.contributorUniv. Lille-
Autor(es): dc.contributorMctic-
Autor(es): dc.contributorTÜBitak National Observatory-
Autor(es): dc.contributorCsic-
Autor(es): dc.contributorPpgfa-
Autor(es): dc.contributorTata Institute of Fundamental Research-
Autor(es): dc.contributorIi Block-
Autor(es): dc.contributorIndian Institute of Technology Bombay-
Autor(es): dc.contributorAryabhatta Research Institute of Observational Sciences-
Autor(es): dc.contributorAkashmitra Mandal-
Autor(es): dc.contributorPolish Academy of Sciences-
Autor(es): dc.contributorHarvard University-
Autor(es): dc.contributorAlbaNova University Center-
Autor(es): dc.contributorOsservatorio Astrofisico di Catania-
Autor(es): dc.contributorChinese Academy of Sciences-
Autor(es): dc.contributorUniversity of Chinese Academy of Sciences-
Autor(es): dc.contributorNational Astronomical Observatories-
Autor(es): dc.contributorShandong Astronomical Society-
Autor(es): dc.contributorVygonnaia Street-
Autor(es): dc.contributorSeti Institute-
Autor(es): dc.contributorUnistellar-
Autor(es): dc.contributorUnistellar Citizen Scientist-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorSicardy, B.-
Autor(es): dc.creatorTej, A.-
Autor(es): dc.creatorGomes-Júnior, A. R.-
Autor(es): dc.creatorRomanov, F. D.-
Autor(es): dc.creatorBertrand, T.-
Autor(es): dc.creatorAshok, N. M.-
Autor(es): dc.creatorLellouch, E.-
Autor(es): dc.creatorMorgado, B. E.-
Autor(es): dc.creatorAssafin, M.-
Autor(es): dc.creatorDesmars, J.-
Autor(es): dc.creatorCamargo, J. I.B.-
Autor(es): dc.creatorKilic, Y.-
Autor(es): dc.creatorOrtiz, J. L.-
Autor(es): dc.creatorVieira-Martins, R.-
Autor(es): dc.creatorBraga-Ribas, F.-
Autor(es): dc.creatorNinan, J. P.-
Autor(es): dc.creatorBhatt, B. C.-
Autor(es): dc.creatorPramod Kumar, S.-
Autor(es): dc.creatorSwain, V.-
Autor(es): dc.creatorSharma, S.-
Autor(es): dc.creatorSaha, A.-
Autor(es): dc.creatorOjha, D. K.-
Autor(es): dc.creatorPawar, G.-
Autor(es): dc.creatorDeshmukh, S.-
Autor(es): dc.creatorDeshpande, A.-
Autor(es): dc.creatorGanesh, S.-
Autor(es): dc.creatorJain, J. K.-
Autor(es): dc.creatorMathew, S. K.-
Autor(es): dc.creatorKumar, H.-
Autor(es): dc.creatorBhalerao, V.-
Autor(es): dc.creatorAnupama, G. C.-
Autor(es): dc.creatorBarway, S.-
Autor(es): dc.creatorBrandeker, A.-
Autor(es): dc.creatorFlorén, H. G.-
Autor(es): dc.creatorOlofsson, G.-
Autor(es): dc.creatorBruno, G.-
Autor(es): dc.creatorMao, Y. M.-
Autor(es): dc.creatorYe, R. H.-
Autor(es): dc.creatorZou, Q. Y.-
Autor(es): dc.creatorSun, Y. K.-
Autor(es): dc.creatorShen, Y. Y.-
Autor(es): dc.creatorZhao, J. Y.-
Autor(es): dc.creatorGrishin, D. N.-
Autor(es): dc.creatorRomanova, L. V.-
Autor(es): dc.creatorMarchis, F.-
Autor(es): dc.creatorFukui, K.-
Autor(es): dc.creatorKukita, R.-
Autor(es): dc.creatorBenedetti-Rossi, G.-
Autor(es): dc.creatorSantos-Sanz, P.-
Autor(es): dc.creatorDhyani, N.-
Autor(es): dc.creatorGokhale, A.-
Autor(es): dc.creatorKate, A.-
Data de aceite: dc.date.accessioned2025-08-21T15:33:17Z-
Data de disponibilização: dc.date.available2025-08-21T15:33:17Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1051/0004-6361/202348756-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308425-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308425-
Descrição: dc.descriptionContext. In about 2000, the south pole of Triton experienced an extreme summer solstice that occurs every ~650 years, when the subsolar latitude reached about 50?S. Bracketing this epoch, a few occultations probed the Triton atmosphere in 1989, 1995, 1997, 2008, and 2017. A recent ground-based stellar occultation observed on 6 October 2022 provides a new measurement of the atmospheric pressure on Triton. This is presented here. Aims. The goal is to constrain the volatile transport models (VTMs) of the Triton atmosphere. The atmosphere is basically in vapor pressure equilibrium with the nitrogen ice at its surface. Methods. Fits to the occultation light curves yield the atmospheric pressure of Triton at the reference radius 1400 km, from which the surface pressure is deduced. Results. The fits provide a pressure p1400 = 1:211 ± 0:039 μ bar at radius 1400 km (47 km altitude), from which a surface pressure of psurf = 14:54 ± 0:47 μ bar is deduced (1s error bars). To within the error bars, this is identical to the pressure derived from the previous occultation of 5 October 2017, p1400 = 1:18±0:03 μ bar and psurf = 14:1±0:4 μ bar, respectively. Based on recent models of the volatile cycles of Triton, the overall evolution of the surface pressure over the last 30 years is consistent with N2 condensation taking place in the northern hemisphere. However, models typically predict a steady decrease in the surface pressure for the period 2005-2060, which is not confirmed by this observation. Complex surface-atmosphere interactions, such as ice albedo runaway and formation of local N2 frosts in the equatorial regions of Triton, could explain the relatively constant pressure between 2017 and 2022.-
Descrição: dc.descriptionLesia Observatoire de Paris Université Psl Cnrs Sorbonne Université, 5 place Jules Janssen-
Descrição: dc.descriptionIndian Institute of Space Science and Technology, Kerala-
Descrição: dc.descriptionFederal University of Uberlândia (UFU) Physics Institute, Av. João Naves de Ávila 2121-
Descrição: dc.descriptionLaboratório Interinstitucional de E-Astronomia -LIneA, Av. Pastor Martin Luther King Jr 126-
Descrição: dc.descriptionAmerican Association of Variable Star Observers (AAVSO), 185 Alewife Brook Parkway-
Descrição: dc.descriptionPhysical Research Laboratory, Gujarat-
Descrição: dc.descriptionUniversidade Do Rio de Janeiro -Observatório Do Valongo, Ladeira do Pedro Antonio 43-
Descrição: dc.descriptionInstitut Polytechnique des Sciences Avancées Ipsa-
Descrição: dc.descriptionImcce Observatoire de Paris Psl Research University Cnrs Sorbonne Université Univ. Lille-
Descrição: dc.descriptionObservatório Nacional Mctic-
Descrição: dc.descriptionTÜBitak National Observatory, Akdeniz University Campus-
Descrição: dc.descriptionInstituto de Astrofísica de Andalucía (IAA Csic, Glorieta de la Astronomía s/n-
Descrição: dc.descriptionFederal University of Technology-Paraná (UTFPR Ppgfa, PR-
Descrição: dc.descriptionTata Institute of Fundamental Research, Homi Bhabha Road, Colaba-
Descrição: dc.descriptionIndian Institute of Astrophysics Ii Block, Koramangala-
Descrição: dc.descriptionDepartment of Physics Indian Institute of Technology Bombay-
Descrição: dc.descriptionAryabhatta Research Institute of Observational Sciences, Manora Peak-
Descrição: dc.descriptionAkashmitra Mandal, Maharashtra-
Descrição: dc.descriptionNicolaus Copernicus Astronomical Center Polish Academy of Sciences, ul. Rabiańska 8-
Descrição: dc.descriptionUdaipur Solar Observatory Physical Research Laboratory, PO Box 198 Badi Road-
Descrição: dc.descriptionHarvard College Observatory Harvard University, 60 Garden St-
Descrição: dc.descriptionDepartment of Astronomy Stockholm University AlbaNova University Center-
Descrição: dc.descriptionInaf Osservatorio Astrofisico di Catania, Via S. Sofia 78-
Descrição: dc.descriptionKey Laboratory for Research in Galaxies and Cosmology Chinese Academy of Sciences, 80 Nandan Rd-
Descrição: dc.descriptionSchool of Astronomy and Space Science University of Chinese Academy of Sciences, 1 East Yanqi Lake Rd-
Descrição: dc.descriptionKey Lab of Space Astronomy and Technology National Astronomical Observatories-
Descrição: dc.descriptionShandong Astronomical Society, 180 West Wenhua Rd, Shandong-
Descrição: dc.descriptionVygonnaia Street, house 2/1, flat 59, Primorsky Krai-
Descrição: dc.descriptionSeti Institute, 339 N Bernardo Ave-
Descrição: dc.descriptionUnistellar, 5 allée Marcel Leclerc, bâtiment B-
Descrição: dc.descriptionUnistellar Citizen Scientist-
Descrição: dc.descriptionUNESP-São Paulo State University Grupo de Dinâmica Orbital e Planetologia Cep, SP-
Descrição: dc.descriptionUNESP-São Paulo State University Grupo de Dinâmica Orbital e Planetologia Cep, SP-
Idioma: dc.languageen-
Relação: dc.relationAstronomy and Astrophysics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectPlanets and satellites: atmospheres-
Palavras-chave: dc.subjectPlanets and satellites: individual: Triton-
Título: dc.titleConstraints on the evolution of the Triton atmosphere from occultations: 1989-2022-
Tipo de arquivo: dc.typelivro digital-
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