803 citations · 3.4k across the 63 of their papers we have counts for
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Deuterated methyl mercaptan (CHSD): Laboratory rotational spectroscopy and search toward IRAS 16293-2422 B
Olena Zakharenko, Frank Lewen, Vadim V. Ilyushin +4
Methyl mercaptan (also known as methanethiol), CH3SH, has been found in the warm and dense parts of high -- as well as low -- mass star-forming regions. The aim of the present stud…
Laboratory spectroscopic study of isotopic thioformaldehyde, HCS, and determination of its equilibrium structure
H. S. P. Müller, A. Maeda, S. Thorwirth +6
Thioformaldehyde is an abundant molecule in various regions of the interstellar medium. However, available laboratory data limit the accuracies of calculated transition frequencies…
Accurate rotational rest frequencies for ammonium ion isotopologues
José-Luis Doménech, Stephan Schlemmer, Oskar asvany
We report rest frequencies for rotational transitions of the deuterated ammonium isotopologues NH3D+, NH2D2+ and NHD3+, measured in a cryogenic ion trap machine. For the symmetric…
100 GHz Room-Temperature Laboratory Emission Spectrometer
Nadine Wehres, Bettina Heyne, Frank Lewen +6
We present first results of a new heterodyne spectrometer dedicated to high-resolution spectroscopy of molecules of astrophysical importance. The spectrometer, based on a roomtempe…
First laboratory detection of vibration-rotation transitions of CH and CH and improved measurement of their rotational transition frequencies
José L. Doménech, Pavol Jusko, Stephan Schlemmer +1
The long-searched C-H stretches of the fundamental ions CH and CH have been observed for the first time in the laboratory. For this, the state-dependent attachment o…
Identification of the fragment of the 1-methylpyrene cation by mid-IR spectroscopy
Pavol Jusko, Aude Simon, Gabi Wenzel +3
The fragment of the 1-methylpyrene cation, C17H11+, is expected to exist in two isomeric forms, 1-pyrenemethylium PyrCH2+ and the tropylium containing species PyrC7+ . We measured…