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A first assessment of the strength of cometary particles collected in-situ by the COSIMA instrument onboard ROSETTA

Journal
Date Issued
2016
Author(s)
Hornung, Klaus
•
Merouane, Sihane
•
Hilchenbach, Martin
•
Langevin, Yves
•
Mellado, Eva Maria
•
•
Kissel, Jochen
•
Engrand, Cecile
•
Schulz, Rita
•
Ryno, Jouni
•
Silen, Johan
•
COSIMA Team
DOI
Abstract
Soon after the arrival of the ROSETTA spacecraft at Comet 67/P Churyumov-Gerasimenko the onboard instrument COSIMA ("Cometary Secondary Ion Mass Analyzer") collected a large number of cometary dust particles on targets from gold black of thickness between 10 and 30 μm. Inspection by its camera subsystem revealed that many of them consist of smaller units of typically some tens of micrometers in size. The collection process left the smaller dust particles in an essentially unaltered state whereas most particles larger than about 100 μm got fragmented into smaller pieces. Using the observed fragment size distributions, the present paper includes a first assessment of the strength for those dust particles that were disrupted upon impact.
Volume
133
Start page
63
Uri
Url
Issn Identifier
0032-0633
Ads BibCode
2016P&SS..133...63H
Rights
open.access
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