The first astrophysical detection, terahertz spectrum, and database for the monodeuterated species of methyl formate HCOOCH{sub 2}D

Based on new measurements carried out in the laboratory from 0.77 to 1.2 THz and on a line-frequency analysis of these new data, along with previously published data, we build a line list for HCOOCH{sub 2}D that leads to its first detection in the Orion KL nebula. The observed lines, both in space a...

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Bibliographic Details
Published in:The Astrophysical journal 2013-12, Vol.779 (2)
Main Authors: Coudert, L. H., Drouin, B. J., Tercero, B., Cernicharo, J., Guillemin, J.-C., Motiyenko, R. A., Margulès, L.
Format: Article
Language:English
Subjects:
AMPLITUDES
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
DATA ANALYSIS
DETECTION
FREQUENCY ANALYSIS
GALAXIES
MOLECULES
NEBULAE
SPACE
SPECTRA
TUNNEL EFFECT
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Summary:Based on new measurements carried out in the laboratory from 0.77 to 1.2 THz and on a line-frequency analysis of these new data, along with previously published data, we build a line list for HCOOCH{sub 2}D that leads to its first detection in the Orion KL nebula. The observed lines, both in space and in the laboratory, involve the cis D-in-plane and trans D-out-of-plane conformations of HCOOCH{sub 2}D and the two tunneling states arising from the large-amplitude motion connecting the two trans configurations. The model used in the line position calculation accounts for both cis and trans conformations, as well as the large-amplitude motion.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/779/2/119