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| HAL : hal-00558003, version 1 |
| DOI : 10.1029/2010JA016100 |
| Fiche détaillée |  Récupérer au format |
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| Journal of Geophysical Research A: Space Physics 116 (2011) A04313 |
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| Detection of currents and associated electric fields in Titan's ionosphere from Cassini data |
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| K. Agren 1, 2D. J. Andrews 2 |
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| (2011) |
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| We present observations from three Cassini flybys of Titan using data from the radio and plasma wave science, magnetometer and plasma spectrometer instruments. We combine magnetic field and cold plasma measurements with calculated conductivities and conclude that there are currents of the order of 10 to 100 nA m−2 flowing in the ionosphere of Titan. The currents below the exobase (∼1400 km) are principally field parallel and Hall in nature, while the Pedersen current is negligible in comparison. Associated with the currents are perpendicular electric fields ranging from 0.5 to 3 μV m−1. |
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| 1 : | Swedish Institute of Space Physics (IRF) |
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Upssala University |
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| 2 : | Department of Physics and Astronomy [Leicester] |
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University of Leicester |
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| 3 : | Mullard Space Science Laboratory |
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University College of London (UCL) |
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| 4 : | Space and Atmospheric Physics, Imperial College (SPAT) |
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Imperial College London |
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| 5 : | Centre d'étude spatiale des rayonnements (CESR) |
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CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 6 : | Institut Pierre-Simon-Laplace (IPSL) |
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CNRS : FR636 – Institut de recherche pour le développement [IRD] – CEA – CNES – INSU – Université Pierre et Marie Curie (UPMC) - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines – Ecole normale supérieure de Paris - ENS Paris |
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| 7 : | Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) |
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CNRS : UMR8190 – Université Pierre et Marie Curie (UPMC) - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines – INSU |
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| 8 : | Swedish Defense Research Agency |
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Swedish Defense Research Agency |
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| Domaine | : | Planète et Univers/Astrophysique/Planétologie et astrophysique de la terre Physique/Astrophysique/Planétologie et astrophysique de la terre |
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| Titan ionospheric physics – Currents – Saturn-Titan interaction – Cassini – Electric fields |
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| hal-00558003, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00558003 | |
| oai:hal.archives-ouvertes.fr:hal-00558003 | |
| Contributeur : Catherine Cardon | |
| Soumis le : Jeudi 20 Janvier 2011, 15:55:26 | |
| Dernière modification le : Mardi 19 Avril 2011, 17:52:59 | |
