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| Titel |
The Heterogeneous Coma of Comet 67P/Churyumov-Gerasimenko from Rosetta Observations |
| VerfasserIn |
Nicolas Fougere, Valeriy Tenishev, André Bieler, Michael Combi, Tamas Gombosi, Gabor Toth, Kenneth Hansen, Yinsi Shou, Zhenguang Huang, Xianzhe Jia, Martin Rubin, Kathrin Altwegg  , Peter Wurz, Hans Balsiger, Annette Jaeckel, Léna Le Roy, Sébastien Gasc, Ursina Calmonte, Chia-Yu Tzou, Myrtha Hässig, Stephen Fuselier, Johan De Keyser, Jean-Jacques Berthelier, Urs Mall, Henri Rème, Björn Fiethe |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250103373
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| Publikation (Nr.) |
 EGU/EGU2015-4695.pdf |
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| Zusammenfassung |
| Since its orbit insertion around comet 67P/Churyumov-Gerasimenko (CG), the Rosetta spacecraft has revealed invaluable information regarding the cometary coma environment. The prolonged period of observation enabled a relatively extensive spatial coverage of comet CG’s coma, which showed distinct spatial distributions for different species.
We introduce a fully 3D kinetic model performed with the Direct Simulation Monte-Carlo approach of the H2O, CO, and CO2 coma of comet CG using the Adaptive Mesh Particle Simulator code with the shape model of the Rosetta nucleus. The model allows the description of the full coma of comet CG including the regions where collisions cannot maintain a flow that can be described by a fluid. The model is constrained by Rosetta observations giving clues regarding the gas release of the different species. This constitutes the most advanced coma model of comet CG, which is critical to interpret instrument data and for further mission planning. |
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