University of Illinois Urbana-Champaign

Submillimeter wave spectroscopy and ISM search for propionic acid

Margulès, L.

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1419556.pdf
1419556.pptx
3868.pdf

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https://hdl.handle.net/2142/104320

Description

Title
Submillimeter wave spectroscopy and ISM search for propionic acid
Author(s)
Margulès, L.
Contributor(s)
  • Guillemin, J.-C.
  • Cernicharo, Jose
  • Kolesniková, Lucie
  • Alonso, Elena R.
  • Alekseev, E.A.
  • Dorovskaya, Olga
  • Ilyushin, V.
  • Motiyenko, R.A.
Issue Date
2019-06-20
Keyword(s)
Astrochemistry and astrobiology in the age of Atacama Large Millimeter/submillimeter Array (ALMA)
Date of Ingest
  • 2019-07-15T22:16:40Z
  • 2020-01-25T19:31:58Z
Abstract
Two compounds with a C$_{2}$H$_{4}$O$_{2}$ formula have been detected in the Interstellar Medium (ISM): acetic acid (CH$_{3}$CO$_{2}$H) and methyl formate (CH$_{3}$OC(O)H), the latter being thermodynamically less stable than the former but more abundant. Among the higher homologues with a C$_{3}$H$_{6}$O$_{2}$ formula where a hydrogen atom in C$_{2}$H$_{4}$O$_{2}$ has been replaced by a CH$_{3}$ group, two compounds have already been detected: ethyl formate (EtOC(O)H) and methyl acetate (CH$_{3}$OC(O)CH$_{3}$). The higher thermodynamic stability of another isomer, the propionic acid (EtCO$_{2}$H), pushed us to record its rotational spectrum, since this compound has a high probability of being present in the ISM. The methyl top internal rotation should be taken into account, therefore the analysis is performed using RAM36 code.\footnote{Ilyushin, V.V. et al;{\em J. Mol. Spectrosc.}~{\bf259}, (2010) 26} The spectroscopic results and its search in ISM will be presented.\\ \em{This work was supported by the CNES and the Action sur Projets de l'INSU, PCMI}
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/104320
DOI
https://doi.org/10.15278/isms.2019.RG08
Copyright and License Information
Copyright 2019 L. Margulès

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Abstracts & Presentations - 2019 International Symposium on Molecular Spectroscopy PRIMARY