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| Titel |
Laboratory simulation of dust interactions close to lunar surface |
| VerfasserIn |
Jiri Pavlu, Marek Vysinka, Ivana Richterova, Jana Safrankova, Zdenek Nemecek |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250131859
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| Publikation (Nr.) |
 EGU/EGU2016-12307.pdf |
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| Zusammenfassung |
| Dust grains in space can be frequently found close to exposed surfaces, e.g., at the Moon,
asteroids, comets, etc. A broad variety of solar particles–dust interactions plays its role —
electrons and UV charge the grains, ions can sputter or somewhat modify the grain structure.
While the grain levitating above the surface can rotate along all three axes, thus interacting
nearly isotropically, the grain lying on the surface cannot move and it is exposed from one
side only. We study spherical micron-sized glass grains as a representative of the silicate-type
space dust. Particular interactions were experimentally observed in both an electrodynamic
trap (levitating dust) and a scanning electron microscope (dust on the surface). We present
a comparison of both approaches together with models of particular processes
and situations; we predict and discuss dust behaviour at the lunar surface vicinity. |
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