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

AuthorsDoménech, José Luis ; Schlemmer, Stephan; Asvany, Oskar
KeywordsISM: molecules
Methods: laboratory: molecular
Molecular data
Techniques: spectroscopic
Issue DateNov-2017
CitationAstrophysical Journal
AbstractThe fundamental 28SiH+ 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 J = 1 - 0 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.
Publisher version (URL)https://doi.org/10.3847/1538-4357/aa8fca
Appears in Collections:(CFMAC-IEM) Artículos
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