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A Different Look At Titans Dunes

hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorPAGANELLI, Flora
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorCALLAHAN, P.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorHENSLEY, S.
hal.structure.identifierJohns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]
dc.contributor.authorLORENZ, R.
hal.structure.identifierLunar and Planetary Laboratory [Tucson] [LPL]
dc.contributor.authorLUNINE, J.
hal.structure.identifierUS Geological Survey [Flagstaff]
dc.contributor.authorKIRK, R.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSTILES, B.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorJANSSEN, M.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorLOPES, R.
hal.structure.identifierProxemy Research Inc
dc.contributor.authorSTOFAN, E.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorWALL, S.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorPAILLOU, Philippe
dc.contributor.authorTHE RADAR TEAM
dc.date.issued2006
dc.date.conference2006
dc.description.abstractEnIn its six Titan flybys (T16: July 2006) the Cassini's Titan Radar Mapper has imaged yet again more evidence of dark linear streaks and/or dunes. The latitude, between 14-25 N, and orientation of these features is comparable to the one seen in the T3 (February 2005) Titan flyby. The implications of these new observation stand on the particular geometry in which the dunes have been imaged in the radar swath and consequently on the effect that this has on their characterization. Previous flyby geometries had look direction perpendicular to the general azimuth of the dunes, thus allowing identification of dunes with generally observed E-W orientation (see also Radebaugh et al., this conference) and --because of the favorable geometry -- to identify their topographic expression. T16 has shown that the same dark linear streaks and/or dunes trend can be imaged with look direction quasi-parallel to them, very similar to the + 25 E-W azimuth in T3. This has the implication that these features might be superposed streaks with none or minimal topography, and that they are visible because of differential erosion between the radar bright rougher substrate and the radar dark of fine particle smooth surface deposits. This paper will asses the imaging geometry at which these dark linear streaks and/or dunes are seen in T16 and T3 flybys, and what the data are telling us in terms of their physical and morphological properties.
dc.language.isoen
dc.source.title2006DPS....38.5608P - Bulletin of the American Astronomical Society
dc.titleA Different Look At Titans Dunes
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.page586
bordeaux.volume38
bordeaux.countryFR
bordeaux.title.proceeding2006DPS....38.5608P - Bulletin of the American Astronomical Society
bordeaux.peerReviewedoui
hal.identifierhal-00405625
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00405625v1
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