Similarities in element  content between comet 67P/Churyumov–Gerasimenko coma dust and selected meteorite samples

Sihane Merouane; Oliver J. Stenzel; Franz Brandstätter; Christian Koeberl; Kurt Varmuza; John Paquette; Sandra Siljeström; the COSIMA team; Ludovic Ferrière; Peter Filzmoser; Martin Hilchenbach; Cécile Engrand
Similarities in element  content between comet 67P/Churyumov–Gerasimenko coma dust and selected meteorite samples

Sihane Merouane
Oliver J. Stenzel
Franz Brandstätter
Christian Koeberl
Kurt Varmuza
John Paquette
Sandra Siljeström; the COSIMA team
Ludovic Ferrière
Peter Filzmoser
Martin Hilchenbach
Cécile Engrand
Katso/Avaa
Lataukset: 

doi:10.1093/mnras/stx1908
URI
https://academic.oup.com/mnras/article/469/Suppl_2/S492/4060708
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042822764
Tiivistelmä

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.

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