Toepfer, Matthias, Jusko, Pavol, Schlemmer, Stephan and Asvany, Oskar (2016). Double resonance rotational spectroscopy of CH2D+. Astron. Astrophys., 593. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

Context. Deuterated forms of CH3+ are thought to be responsible for deuterium enrichment in lukewarm astronomical environments. There is no unambiguous detection of CH2D+ in space to date. Aims. Four submillimetre rotational lines of CH2D+ are documented in the literature. Our aim is to present a complete dataset of highly resolved rotational lines, including millimetre (mm) lines needed for a potential detection. Methods. We used a low-temperature ion trap and applied a novel IR-mm-wave double resonance method to measure the rotational lines of CH2D+. Results. We measured 21 low-lying (J <= 4) rotational transitions of CH2D+ between 23 GHz and 1.1 THz with accuracies close to 2 ppb.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Toepfer, MatthiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jusko, PavolUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schlemmer, StephanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Asvany, OskarUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-263588
DOI: 10.1051/0004-6361/201629038
Journal or Publication Title: Astron. Astrophys.
Volume: 593
Date: 2016
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:
KeywordsLanguage
22-POLE ION-TRAP; THEORETICAL CALCULATIONS; SPECTRAMultiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/26358

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