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Investigation of the dust environment around Europa

Miljkovic, Katarina; Mason, Nigel and Zarnecki, John (2009). Investigation of the dust environment around Europa. In: European Planetary Science Congress, 14-18 Sep 2009, Potsdam, Germany.

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Abstract

Space in the vicinity of atmosphereless bodies in the Solar system is often populated by dust originating from the surface. Fragments of the surface are ejected mostly due to hypervelocity meteoroid impacts. It is also possible that material from sub-surface layers may be vented through cracks in the ice (as detected near Enceladus). The understanding of Europa's dust cloud (and dust clouds of this sort in general) is done by mimicking micrometeoroid impact into simulated Europan regolith/ice using the light gas gun at the Open University. The research is complemented with impact modelling using the finite element hydrocode, ANSYS Autodyn 3D. The results are implemented in IDL in order to calculate the approximate dust cloud population (size and spatial density) of the surface fragments at different altitudes above Europa’s surface. It is, therefore, investigated whether orbit-based detection and analysis of material ejected from the surface may provide an alternative method for sampling material without landing, both quantitatively and qualitatively. Our current work is aimed at the understanding of the local dust fluxes and geometries at the orbital altitudes and its application to the design of a dust detector for an orbiter.

Item Type: Conference Item
Copyright Holders: 2009 The Authors
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 26596
Depositing User: Users 6044 not found.
Date Deposited: 20 Jan 2011 10:52
Last Modified: 24 Nov 2014 13:03
URI: http://oro.open.ac.uk/id/eprint/26596
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