The Millimeter- And Submillimeter-wave Spectrum Of Propenal

Bermúdez, Celina

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https://hdl.handle.net/2142/50906 Copy

Description

Title

The Millimeter- And Submillimeter-wave Spectrum Of Propenal

Author(s)

Bermúdez, Celina

Contributor(s)

• Alonso, José L.
• Kolesniková, Lucie
• Daly, Adam M.

Issue Date

2014-06-19

Keyword(s)

Mini-symposium: Astronomical Molecular Spectroscopy in the Age of ALMA

Abstract

The detection of propenal (acrolein) in Sgr B2 is based in two transitions detected with the Green-Bank Telescope,\footnote{J.~M.~Hollis, P.~R.~Jewell, F.~J.~Lovas, A.~Remijan, H.~M$\o$llendal \textit{Astrophys. J.} \textbf{610},\textit{ L21-L24}, (2010)} operating in the frequency range 18-26~GHz. A combination of Stark modulated microwave spectroscopy and frequency modulated millimeter- and submillimeter-wave spectroscopy has been used to record the rotational spectrum of propenal from 26~to~675~GHz in order to provide accurate rotational parameters for the identification of new lines of propenal in the interstellar medium. Ground state and the vibrational excited states below 700~cm$^{-1}$ of trans-propenal ($\nu$$_{18}$, 2$\nu$$_{18}$, $\nu$$_{13}$, 3$\nu$$_{18}$, $\nu$$_{18}$+$\nu$$_{13}$, $\nu$$_{12}$, $\nu$$_{17}$, 4$\nu$$_{18}$, 2$\nu$$_{18}$+$\nu$$_{13}$, 2$\nu$$_{13}$) have been analyzed in a global fit taking in to account Coriolis and Fermi interactions. Spectroscopic constants for all three $^{13}$C trans-isotopologes in natural abundance as well as ground state spectroscopic constants for cis-propenal are also reported.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/50906

DOI

https://doi.org/10.15278/isms.2014.RA08

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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