The laboratory rotational study of methyl isocynate

Kolesniková, Lucie

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https://hdl.handle.net/2142/104438 Copy

Description

Title

The laboratory rotational study of methyl isocynate

Author(s)

Kolesniková, Lucie

Contributor(s)

• Alonso, José L.
• Guillemin, J.-C.
• Cernicharo, Jose
• Alonso, Elena R.
• Kisiel, Zbigniew

Issue Date

2019-06-18

Keyword(s)

Astrochemistry and astrobiology in the age of Atacama Large Millimeter/submillimeter Array (ALMA)

Abstract

Methyl isocyanate (CH$_{3}$NCO) is one of the most abundant species detected on the surface of the 67P/Churyumov-Gerasimenko comet.\footnote{Goesmann, F., Rosenbauer, H., Bredehoft, J.H., et al. 2015, Science, 349, aab0689.} It has also been discovered in space towards the Orion clouds where a large number of rotational lines arising from energy levels with $K \leq 3$ were reported.\footnote{Cernicharo, J., Kisiel, Z., Tercero, B., et al. 2016, A\&A, 587, L4.} In the present work, Stark-modulation spectroscopy was used to record the room temperature rotational spectrum of CH$_{3}$NCO in the spectral region from 32 to 90 GHz and to assign rotational transitions up to $K$ = 10. These new assignments were subsequently followed up to 364 GHz. Also, first laboratory measurements between 50 and 300 GHz have been performed for CH$_{3}$N$^{13}$CO and $^{13}$CH$_{3}$NCO isotopologues. Updated extensive line lists along with new sets of spectroscopic parameters provided in this work meet the needs for further detections of CH$_{3}$NCO in space.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104438

DOI

https://doi.org/10.15278/isms.2019.TG02

Copyright and License Information

Copyright 2019 Lucie Kolesniková

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