activity
20122026
most citedExploring molecular complexity with ALMA (EMoCA): Alkanethiols and alkanols in Sagittarius B2(N2)

143 citations · 663 across the 40 of their papers we have counts for

collaborators
Showing astro-ph.IMShow all

7 papers · 1 filter

astro-ph.IM2021★ 3 cited

Millimeter-wave spectroscopy of the CHOD isotopic species of methyl alcohol

Li-Hong Xu, R. M. Lees, O. Zakharenko +4

The dramatic increase in sensitivity, spectral coverage and resolution of radio astronomical facilities in recent years has opened new possibilities for observation of chemical dif…

astro-ph.IM2021★ 12 cited

Rotational spectroscopy of isotopic cyclopropenone, -HCO, and determination of its equilibrium structure

Holger S. P. Müller, Ananya Brahmi M., Jean-Claude Guillemin +2

Cyclopropenone was first detected in the cold and less dense envelope of Sagittarius B2(N). It was found later in several cold dark clouds and it may be possible to detect its mino…

astro-ph.IM2020★ 4 cited

Rotational spectroscopy of singly C substituted isotopomers of propyne and determination of a semi-empirical equilibrium structure

Holger S. P. Müller, Sven Thorwirth, Frank Lewen

Submillimeter spectra of three isotopomers of propyne containing one C atom were recorded in natural isotopic composition in the region of 426 GHz to 785 GHz. Additional mea…

astro-ph.IM2019★ 1 cited

New laboratory techniques using heterodyne receivers

Nadine Wehres, Kirill Borisov, Katharina von Schoeler +4

Two laboratory emission spectrometers have been designed and described previously. Here, we present a follow-up study with special focus on absolute intensity calibration of the ne…

astro-ph.IM2019★ 21 cited

Rotational spectroscopy of methyl mercaptan CHSH at millimeter and submillimeter wavelengths

O. Zakharenko, V. V. Ilyushin, F. Lewen +8

We present a new global study of the millimeter (mm) wave, submillimeter (sub-mm) wave, and terahertz (THz) spectra of the lowest three torsional states of methyl mercaptan (CH…

astro-ph.IM2018★ 10 cited

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…

astro-ph.IM2014★ 17 cited

Millimeter Wave and Terahertz Spectra and Global Fit of Torsion-Rotation Transitions in the Ground, First and Second Excited Torsional States of 13CH3OH Methanol

Li-Hong Xu, R. M. Lees, Yun Hao +5

Methanol is observed in a wide range of astrophysical sources throughout the universe, and comprehensive databases of the millimeter and THz spectra of CH3OH and its principal isot…