143 citations · 663 across the 40 of their papers we have counts for
18 papers · 1 filter
Millimeter and submillimeter spectroscopy of methylallene, CHCHCCH
Holger S. P. Müller, Frank Lewen, Jean-Claude Guillemin +1
Small polycyclic aromatic hydrocarbons and somewhat larger cyano derivatives were detected in the cold dark cloud TMC-1 recently. Their formation from smaller hydrocarbons is not w…
Rotational Spectroscopy as a Tool to Study Vibration-Rotation Interaction: Investigations of CHCN and CHCN up to and a Search for Transitions toward Sagittarius B2(N)
Holger S. P. Müller, Arnaud Belloche, Frank Lewen +1
Methyl cyanide, CHCN, is present in diverse regions in space, in particular in the warm parts of star-forming regions where it is a common molecule. Rotational transitions of $…
Investigation of the rotational spectrum of CHOH and its tentative detection toward Sagittarius B2(N)
Holger S. P. Müller, Vadim V. Ilyushin, Arnaud Belloche +2
Methanol is an abundant molecule in space. The column density of CHOH is in some star-forming regions so high that the search for CHOH is promising. But only very…
Rotational spectroscopy of CHOD with a reanalysis of CHOD toward IRAS 162932422
V. V. Ilyushin, H. S. P. Müller, M. N. Drozdovskaya +10
We have started a measurement campaign of numerous methanol isotopologs in low-lying torsional states in order to provide extensive line lists for radio astronomical observations f…
Millimetre and submillimetre spectroscopy of isobutene and its detection in the molecular cloud G+0.693
Mariyam Fatima, Holger S. P. Müller, Oliver Zingsheim +5
Isobutene ((CH)C=CH) is one of the four isomers of butene (CH). Given the detection of propene (CHCH=CH) toward TMC-1, and also in the warmer environmen…
Rotation-tunneling spectrum and astrochemical modeling of dimethylamine, CHNHCH, and searches for it in space
H. S. P. Müller, R. T. Garrod, A. Belloche +6
Methylamine has been the only simple alkylamine detected in the interstellar medium for a long time. With the recent secure and tentative detections of vinylamine and ethylamine, r…
Rotational spectroscopy of oxirane-\textit{2,2}-, -CDCHO, and its tentative detection toward IRAS 162932422~B
Holger S. P. Müller, Jes K. Jørgensen, Jean-Claude Guillemin +2
We prepared a sample of oxirane doubly deuterated at one C atom and studied its rotational spectrum in the laboratory for the first time between 120~GHz and 1094~GHz. Accurate spec…
Rotational spectroscopy of mono-deuterated oxirane (-CHDO) and its detection towards IRAS 162932422 B
Holger S. P. Müller, Jes K. Jørgensen, Jean-Claude Guillemin +2
We prepared a sample of mono-deuterated oxirane and studied its rotational spectrum in the laboratory between 490 GHz and 1060 GHz in order to improve its spectroscopic parameters…
Rotational and rovibrational spectroscopy of CDOH with an account of CDOH toward IRAS 162932422
V. V. Ilyushin, H. S. P. Müller, J. K. Jørgensen +10
Solar-type protostars harbor highly deuterated complex organics. While this degree of deuteration may provide important clues in studying the formation of these species, spectrosco…
Toward a global model of the interactions in low-lying states of methyl cyanide: rotational and rovibrational spectroscopy of the state and tentative interstellar detection of the state in Sgr B2(N)
Holger S. P. Müller, Arnaud Belloche, Frank Lewen +4
New and existing rotational spectra of methyl cyanide were analyzed to extend the global model of low-lying vibrational states and their interactions to at 920 cm. T…
Laboratory rotational spectroscopy of isotopic acetone, CHC(O)CH and CHC(O)CH, and astronomical search in Sagittarius B2(N2)
Matthias H. Ordu, Oliver Zingsheim, Arnaud Belloche +5
We want to study the rotational spectra of CHC(O)CH and CHC(O)CH and search for them in Sagittarius B2(N2). We investigated the laboratory rotational sp…
Submillimeter spectroscopy and astronomical searches of vinyl mercaptan, CHSH
Marie-Aline Martin-Drumel, Kin Long Kelvin Lee, Arnaud Belloche +8
We have extended the pure rotational investigation of the two isomers syn and anti vinyl mercaptan to the millimeter domain using a frequency-multiplication spectrometer. The speci…
Submillimeter spectroscopy of HCO and a revisit of the rotational spectra of HCO and HCO
Holger S. P. Müller, Frank Lewen
The rotational spectrum of the formaldehyde isotopologue HCO was investigated between 0.56 and 1.50 THz using a sample of natural isotopic composition. In addition, tran…
Laboratory spectroscopic study and astronomical detection of vibrationally excited n-propyl cyanide
Holger S. P. Müller, Adam Walters, Nadine Wehres +8
We performed a spectral line survey called Exploring Molecular Complexity with ALMA (EMoCA) toward Sagittarius~B2(N) between 84.1 and 114.4 GHz with the Atacama Large Millimeter/su…
Exploring molecular complexity with ALMA (EMoCA): Alkanethiols and alkanols in Sagittarius B2(N2)
H. S. P. Müller, A. Belloche, L. -H. Xu +7
Over the past five decades, radio astronomy has shown that molecular complexity is a natural outcome of interstellar chemistry, in particular in star forming regions. However, the…
Rotational spectra of isotopic species of methyl cyanide, CHCN, in their excited vibrational states
H. S. P. Müller, B. J. Drouin, J. C. Pearson +3
Methyl cyanide is an important trace molecule in space, especially in star-forming regions where it is one of the more common molecules used to derive kinetic temperatures. We want…
Rotational spectroscopy as a tool to investigate interactions between vibrational polyads in symmetric top molecules: low-lying states of methyl cyanide, CHCN
Holger S. P. Müller, Linda R. Brown, Brian J. Drouin +6
Spectra of methyl cyanide were recorded to analyze interactions in low-lying vibrational states and to construct line lists for radio astronomical observations as well as for infra…
The quest for complex molecules in space: Laboratory spectroscopy of n-butyl cyanide, n-C4H9CN, in the millimeter wave region and its astronomical search in Sagittarius B2(N)
M. H. Ordu, H. S. P. Müller, A. Walters +5
The saturated n-propyl cyanide was recently detected in Sagittarius B2(N). The next larger unbranched alkyl cyanide is n-butyl cyanide. We provide accurate rest frequency predictio…