Similarities in element content between comet 67P/Churyumov–Gerasimenko coma dust and selected meteorite samples
: Oliver J. Stenzel, Martin Hilchenbach, Sihane Merouane, John Paquette, Kurt Varmuza, Cécile Engrand, Franz Brandstätter, Christian Koeberl, Ludovic Ferrière, Peter Filzmoser, Sandra Siljeström; the COSIMA team
: 2017
: Monthly Notices of the Royal Astronomical Society
: 469
: Supplement: 2
: S492
: S505
: 14
: 0035-8711
: 1365-2966
DOI: https://doi.org/10.1093/mnras/stx1908
: https://academic.oup.com/mnras/article/469/Suppl_2/S492/4060708
: https://research.utu.fi/converis/portal/detail/Publication/38998460
We have analysed the element composition and the context of particles
collected within the coma of 67P/Churyumov–Gerasimenko with Rosetta’s
COmetary Secondary Ion Mass Analyzer (COSIMA). A comparison has been
made between on board cometary samples and four meteorite samples
measured in the laboratory with the COSIMA reference model. Focusing on
the rock-forming elements, we have found similarities with chondrite
meteorites for some ion count ratios. The composition of
67P/Churyumov–Gerasimenko particles measured by COSIMA shows an
enrichment in volatile elements compared to that of the investigated
Renazzo (CR2) carbonaceous meteorite sample.
