A1 Refereed original research article in a scientific journal
A first assessment of the strength of cometary particles collected in-situ by the COSIMA instrument onboard ROSETTA
Authors: Hornung K, Merouane S, Hilchenbach M, Langevin Y, Mellado EM, Della Corte V, Kissel J, Engrand C, Schulz R, Ryno J, Silen J, Group Author(s): COSIMA Team
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication year: 2016
Journal: Planetary and Space Science
Journal name in source: PLANETARY AND SPACE SCIENCE
Journal acronym: PLANET SPACE SCI
Volume: 133
First page : 63
Last page: 75
Number of pages: 13
ISSN: 0032-0633
DOI: https://doi.org/10.1016/j.pss.2016.07.003
Web address : http://dx.doi.org/10.1016/j.pss.2016.07.003
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 mu m. 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 mu m 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. (C) 2016 Elsevier Ltd. All rights reserved.
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 mu m. 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 mu m 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. (C) 2016 Elsevier Ltd. All rights reserved.
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