Methyl isocyanate CH3NCO: An important missing organic in current astrochemical networks
RUAUD, M.
NASA Ames Research Center Cooperative for Research in Earth Science in Technology [ARC-CREST]
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NASA Ames Research Center Cooperative for Research in Earth Science in Technology [ARC-CREST]
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en
Article de revue
Ce document a été publié dans
Monthly Notices of the Royal Astronomical Society: Letters. 2017-09-28, vol. 473, n° 1, p. L59-L63
Oxford Journals
Résumé en anglais
Methyl isocyanate (CH3NCO) is one of the important complex organic molecules detected on the comet 67P/Churyumov-Gerasimenko by Rosetta's Philae lander. It was also detected in hot cores around high-mass protostars along ...Lire la suite >
Methyl isocyanate (CH3NCO) is one of the important complex organic molecules detected on the comet 67P/Churyumov-Gerasimenko by Rosetta's Philae lander. It was also detected in hot cores around high-mass protostars along with a recent detection in the solar-type protostar IRAS 16293-2422. We propose here a gas-grain chemical model to form CH3NCO after reviewing various formation pathways with quantum chemical computations. We have used NAUTILUS 3-phase gas-grain chemical model to compare observed abundances in the IRAS 16293-2422. Our chemical model clearly indicates the ice phase origin of CH3NCO.< Réduire
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