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dc.contributor.author
Meza, E.
dc.contributor.author
Sicardy, B.
dc.contributor.author
Assafin, M.
dc.contributor.author
Ortiz, J.L.
dc.contributor.author
Bertrand, T.
dc.contributor.author
Lellouch, E.
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Desmars, J.
dc.contributor.author
Forget, F.
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Bérard, D.
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Doressoundiram, A.
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Lecacheux, J.
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Marques Oliveira, J.
dc.contributor.author
Roques, F.
dc.contributor.author
Widemann, T.
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Colas, F.
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Vachier, F.
dc.contributor.author
Renner, S.
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Leiva, R.
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Braga Ribas, F.
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Benedetti Rossi, G.
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Camargo, J. I. B.
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Dias Oliveira, A.
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Morgado, B.
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Gomes Júnior, A. R.
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Vieira Martins, R.
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Behrend, R.
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Castro Tirado, A.
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Duffard, R.
dc.contributor.author
Morales, N.
dc.contributor.author
Gil Hutton, Ricardo Alfredo
dc.date.available
2022-06-16T02:19:38Z
dc.date.issued
2019-05
dc.identifier.citation
Meza, E.; Sicardy, B.; Assafin, M.; Ortiz, J.L.; Bertrand, T.; et al.; Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations, 1988-2016; EDP Sciences; Astronomy and Astrophysics; 625; a42; 5-2019; 1-21
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/159866
dc.description.abstract
Context. The tenuous nitrogen (N2) atmosphere on Pluto undergoes strong seasonal effects due to high obliquity and orbital eccentricity, and has recently (July 2015) been observed by the New Horizons spacecraft. Aims. The main goals of this study are (i) to construct a well calibrated record of the seasonal evolution of surface pressure on Pluto and (ii) to constrain the structure of the lower atmosphere using a central flash observed in 2015. Methods. Eleven stellar occultations by Pluto observed between 2002 and 2016 are used to retrieve atmospheric profiles (density, pressure, temperature) between altitude levels of ∼5 and ∼380 km (i.e. pressures from ∼10 μbar to 10 nbar). Results. (i) Pressure has suffered a monotonic increase from 1988 to 2016, that is compared to a seasonal volatile transport model, from which tight constraints on a combination of albedo and emissivity of N2 ice are derived. (ii) A central flash observed on 2015 June 29 is consistent with New Horizons REX profiles, provided that (a) large diurnal temperature variations (not expected by current models) occur over Sputnik Planitia; and/or (b) hazes with tangential optical depth of ∼0.3 are present at 4-7 km altitude levels; and/or (c) the nominal REX density values are overestimated by an implausibly large factor of ∼20%; and/or (d) higher terrains block part of the flash in the Charon facing hemisphere.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
METHODS: DATA ANALYSIS
dc.subject
METHODS: OBSERVATIONAL
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PLANETS AND SATELLITES: ATMOSPHERES
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PLANETS AND SATELLITES: PHYSICAL EVOLUTION
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PLANETS AND SATELLITES: TERRESTRIAL PLANETS
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TECHNIQUES: PHOTOMETRIC
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations, 1988-2016
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-01-03T14:02:31Z
dc.identifier.eissn
1432-0746
dc.journal.volume
625
dc.journal.number
a42
dc.journal.pagination
1-21
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Meza, E.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
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Fil: Sicardy, B.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
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Fil: Assafin, M.. Observatório do Valongo; Brasil. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Ortiz, J.L.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Bertrand, T.. National Aeronautics and Space Administration; Estados Unidos
dc.description.fil
Fil: Lellouch, E.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Desmars, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Forget, F.. Laboratoire de Meteorologie Dynamique; Francia. Sorbonne University; Francia. Universite de Paris VI; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Bérard, D.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Doressoundiram, A.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Lecacheux, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Marques Oliveira, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Roques, F.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Widemann, T.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Colas, F.. National Aeronautics and Space Administration; Estados Unidos
dc.description.fil
Fil: Vachier, F.. National Aeronautics and Space Administration; Estados Unidos
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Fil: Renner, S.. National Aeronautics and Space Administration; Estados Unidos. Observatoire de Lille; Francia
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Fil: Leiva, R.. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Braga Ribas, F.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil. Universidade Tecnologia Federal do Parana; Brasil
dc.description.fil
Fil: Benedetti Rossi, G.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Camargo, J. I. B.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Dias Oliveira, A.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Morgado, B.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Gomes Júnior, A. R.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Vieira Martins, R.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
dc.description.fil
Fil: Behrend, R.. Geneva Observatory; Italia
dc.description.fil
Fil: Castro Tirado, A.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Duffard, R.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Morales, N.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Gil Hutton, Ricardo Alfredo. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Geofísica y Astronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
dc.journal.title
Astronomy and Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2019/05/aa34281-18/aa34281-18.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1051/0004-6361/201834281
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