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H/C elemental ratios of the refractory organic matter in cometary particles of 67P/Churyumov-Gerasimenko

Abstract : For two years, the time-of-flight secondary ion mass spectrometer COSIMA (COmetary Secondary Ion Mass Analyzer), on board the Rosetta orbiter, performed in situ analyses of the dust particles ejected from the comet 67P/ChuryumovGerasimenko. Exploiting different analyses of organic analogs that have been analyzed via the COSIMA reference model, we are now able to estimate the H/C elemental ratio of the 67P cometary particles.
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https://hal-insu.archives-ouvertes.fr/insu-03565618
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Submitted on : Friday, February 11, 2022 - 11:05:02 AM
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Robin Isnard, Anaïs Bardyn, Nicolas Fray, Christelle Briois, Hervé Cottin, et al.. H/C elemental ratios of the refractory organic matter in cometary particles of 67P/Churyumov-Gerasimenko. European Planetary Science Congress 2018, Sep 2018, Berlin, Germany. 18 pp. ⟨insu-03565618⟩

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