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Showing 1–3 of 3 results
Advanced filters: Author: Kathrin Altwegg Clear advanced filters

  • The COSIMA mass spectrometer on the Rosetta spacecraft has analysed the solid organic matter found in dust particles emitted by comet 67P/Churyumov–Gerasimenko; this matter is similar to the insoluble organic matter extracted from carbonaceous chondrites such as the Murchison meteorite, but is perhaps more primitive.

    • Nicolas Fray
    • Anaïs Bardyn
    • Martin Hilchenbach
    Research
    Nature
    Volume: 538, P: 72-74

  • A dust impact event detected by the ROSINA mass spectrometer towards the end of the Rosetta mission brings evidence of the presence of ammonium salts in comets. Ammonium salts can store enough nitrogen to explain the observed nitrogen depletion in comets and may have a role in amino acid formation.

    • Kathrin Altwegg
    • Hans Balsiger
    • Steven A. Fuselier
    Research
    Nature Astronomy
    Volume: 4, P: 533-540

  • Chloromethane (CH3Cl) has been observed towards a low-mass protostar and comet 67P, making it the first organohalogen detected in space. The species was previously considered to be a biomarker, but the authors suggest viable alternative abiotic formation routes.

    • Edith C. Fayolle
    • Karin I. Öberg
    • C. -Y. Tzou
    Research
    Nature Astronomy
    Volume: 1, P: 703-708