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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
Subject(s):Mini-symposium: Astrochemistry and Astrobiology in the age of 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.
Issue Date:2019-06-18
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/104438
DOI:10.15278/isms.2019.TG02
Rights Information:Copyright 2019 Lucie Kolesniková
Date Available in IDEALS:2019-07-15
2020-01-25


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