Methyl Isocyanate CH3NCO: An Important Missing Organic in Current Astrochemical Networks

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.

Liton Majumdar, Jean-Christophe Loison, Maxime Ruaud, Pierre Gratier, Valentine Wakelam, Audrey Coutens
(Submitted on 28 Sep 2017)

Comments: Accepted for publication in MNRAS Letters
Subjects: Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:1709.10118 [astro-ph.GA] (or arXiv:1709.10118v1 [astro-ph.GA] for this version)
Submission history
From: Liton Majumdar
[v1] Thu, 28 Sep 2017 18:06:58 GMT (627kb,D)

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