Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 473, Issue 1, Pages L59-L63Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnrasl/slx157
Keywords
Astrochemistry; methods: statistical; ISM: abundances; ISM: evolution; ISM: molecules
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Funding
- ERC [336474]
- NASA
- Conseil National de la Recherche Scientifique (CNRS)
- Centre National d'Etudes Spatiales (CNES)
- National Aeronautics and Space Administration
- European Research Council (ERC) [336474] Funding Source: European Research Council (ERC)
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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 three-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.
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