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| Titel |
Searching for solar wind ions backscattered from the nucleus of comet 67P/Churyumov-Gerasimenko |
| VerfasserIn |
Gabriella Stenberg Wieser, Hans Nilsson, Etienne Behar, Martin Wieser, Masatoshi Yamauchi, Herbert Gunell, Cyril Simon Wedlund, Esa Kallio, Jim Burch, Chris Carr, Anders Eriksson, Karl-Heinz Glassmeier, Jean-Pierre Lebreton, Pierre Henri |
| 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 |
250111491
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| Publikation (Nr.) |
 EGU/EGU2015-11620.pdf |
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| Zusammenfassung |
| Observations from the Earth’s moon show that solar wind particles are backscattered from the
lunar regolith. A substantial amount (1%) ofÂthe solar wind ions retains its charge in the
process. A similar process may be important at 67P/Churyumov-Gerasimenko. We
investigate if a detectable amount of the solar wind is backscattered as ions from
the surface of the comet. We use data from the Rosetta Plasma Consortium Ion
Composition Analyser (RPC-ICA) obtained at distances of about 20 to 30 km from the
centre of the nucleus. RPC-ICA measures ions in the energy range 10 eV-40 keV
and has a field of view of 2.8Ï sr. During most of the observation time both the
comet and the solar wind is within the field of view of RPC-ICA. We compare
our results with observations made by the spacecraft Chandrayaan-1 at the Moon. |
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