Universität zu Köln

Bossa, J-B., Ordu, M. H., Mueller, H. S. P., Lewen, F. and Schlemmer, S. (2014). Laboratory spectroscopy of 1, 2-propanediol at millimeter and submillimeter wavelengths. Astron. Astrophys., 570. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

Context. Ethanediol is one of the largest complex organic molecules detected in space thus far. It has been found in different types of molecular clouds. The two propanediol isomers are the next larger diols. Hence, they are viable candidates to be searched for in space. Aims. We wish to provide sufficiently large and accurate sets of spectroscopic parameters of 1, 2-propanediol to facilitate searches for this molecule at millimeter and longer submillimeter wavelengths. Methods. We recorded rotational spectra of 1, 2-propanediol in three wide frequency windows between 38 and 400 GHz. Results. We made extensive assignments for the three lowest energy conformers to yield spectroscopic parameters up to eighth order of angular momentum. Conclusions. Our present data will be helpful for identifying 1, 2-propanediol at moderate submillimeter or longer wavelengths with radio telescope arrays such as ALMA, NOEMA, or EVLA. In particular, its detection with ALMA in sources, in which ethanediol was detected, appears to be promising.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bossa, J-B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ordu, M. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, H. S. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lewen, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schlemmer, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-426497
DOI:	10.1051/0004-6361/201424320
Journal or Publication Title:	Astron. Astrophys.
Volume:	570
Date:	2014
Publisher:	EDP SCIENCES S A
Place of Publication:	LES ULIS CEDEX A
ISSN:	1432-0746
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ETHYLENE-GLYCOL; WAVE SPECTRUM; MICROWAVE SPECTROSCOPY; MOLECULAR-SPECTROSCOPY; TORSIONAL SPECTRUM; SAGITTARIUS B2(N); COLOGNE DATABASE; 1,3-PROPANEDIOL; 1,2-PROPANEDIOL; CONFORMER Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/42649