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Accurate Frequency Determination of Vibration-Rotation and Rotational Transitions of SiH+

AuthorsDoménech, José Luis ; Schlemmer, Stephan; Asvany, Oskar
KeywordsTechniques: spectroscopic
Molecular data
Methods: laboratory: molecular
ISM: molecules
Issue Date31-Oct-2017
PublisherUniversity of Chicago Press
CitationAstrophysical Journal 849: 1 (2017)
AbstractThe fundamental SiH ion has been characterized in a collaborative work, utilizing a hollow-cathode discharge laser spectrometer and a cryogenic ion trap spectrometer. Twenty-three vibration-rotation transitions around 4.75 μm have been detected with high accuracy. This has facilitated the first direct measurement of the pure rotational transition at 453056.3632(4) MHz in the trap spectrometer. The measured and accurately predicted transitions enable the search for this ion in space with IR and sub-mm telescopes.
Description4 págs., 2 figs., 2 tabs.
Publisher version (URL)https://doi.org/10.3847/1538-4357/aa8fca
Identifiersdoi: 10.3847/1538-4357/aa8fca
issn: 1538-4357
Appears in Collections:(CFMAC-IEM) Artículos
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