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...

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Bibliographic Details
Published in:Planetary and Space Science
Main Authors: Hornung, K., Kissel, J., Fischer, H., Mellado, E.M., Kulikov, O., Hilchenbach, M., Kruger, H., Engrand, C., Langevin, Y., Rossi, M., Krueger, F.R.
Other Authors: Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2014
Subjects:
ANTARCTIC SNOW
MICROMETEORITES
EVOLUTION
Cometary dust
Metal blacks
Collection efficiency
Rosetta mission
[PHYS]Physics [physics]
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]
Antarctic
Antarc*
Online Access:https://hal.in2p3.fr/in2p3-01101328
https://doi.org/10.1016/j.pss.2014.08.011
Description
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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