Methyl isocyanate CH3NCO: An important missing organic in current astrochemical networks
arXiv:1709.10118 · doi:10.1093/mnrasl/slx157
Abstract
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.
Accepted for publication in MNRAS Letters
References in corpus (6)
- Non-thermal desorption from interstellar dust grains via exothermic surface reactions
- The 2014 KIDA network for interstellar chemistry
- Binding energies: new values and impact on the efficiency of chemical desorption
- Modeling Complex Organic Molecules in dense regions: Eley-Rideal and complex induced reaction
- Complex organic molecules in comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy): detection of ethylene glycol and formamide
- Chemical modeling of water deuteration in IRAS16293-2422
Cited by in corpus (8)
- First detection of the pre-biotic molecule glycolonitrile (HOCH2CN) in the interstellar medium
- The GUAPOS project II. A comprehensive study of peptide-like bond molecules
- First detection of CHNCO in the ISM and search of other isocyanates towards the G+0.693-0.027 molecular cloud
- Isomers in Interstellar Environments (I): The Case of Z- and E-Cyanomethanimine
- Resolving desorption of complex organic molecules in a hot core: Transition from non-thermal to thermal desorption or two-step thermal desorption?
- The prebiotic molecular inventory of Serpens SMM1 I. An investigation of the isomers CHNCO and HOCHCN
- Chemical Differentiation around Five Massive Protostars Revealed by ALMA -Carbon-Chain Species, Oxygen-/Nitrogen-Bearing Complex Organic Molecules-
- Millimeter wave spectrum and search for vinyl isocyanate toward Sgr B2(N) with ALMA