Collecting cometary dust particles on metal blacks with the COSIMA instrument onboard ROSETTA
International audience After a brief review of the instrument development and materials selection for collecting cometary dust in the vicinity of comet 67/P Churyumov-Gerasimenko we focus on laboratory verification for the capability of metal black targets to decelerate and capture dust particles (v...
Published in: | Planetary and Space Science |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
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Subjects: | |
Online Access: | https://hal.in2p3.fr/in2p3-01101328 https://doi.org/10.1016/j.pss.2014.08.011 |
Summary: | International audience After a brief review of the instrument development and materials selection for collecting cometary dust in the vicinity of comet 67/P Churyumov-Gerasimenko we focus on laboratory verification for the capability of metal black targets to decelerate and capture dust particles (velocities in the order of 100 m/s; sizes of some 10 mu m). The results indicate that particles between 10 and 100 mu m size can be collected with high probability. Two basic mechanisms of energy dissipation upon impact could be identified: By internal friction within a highly structured dust and within the black's nanostructure. In addition to the actual ROSETTA mission the data presented here might have a more general relevance for future, similar in-situ investigations. (C) 2014 Elsevier Ltd. All rights reserved. |
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