activity
20092026
most citedExploring molecular complexity with ALMA (EMoCA): Alkanethiols and alkanols in Sagittarius B2(N2)

143 citations · 544 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.GA2026

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…

astro-ph.GA2026

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 $…

astro-ph.GA2024★ 2 cited

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…

astro-ph.GA2024★ 8 cited

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…

astro-ph.GA2015★ 143 cited

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…

astro-ph.GA2013★ 3 cited

The CDMS view on molecular data needs of Herschel, SOFIA, and ALMA

Holger S P Müller, C P Endres, J Stutzki +1

The catalog section of the Cologne Database for Molecular Spectroscopy, CDMS, contains mostly rotational transition frequencies, with auxiliary information, of molecules observable…

astro-ph.GA2012★ 34 cited

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…

astro-ph.GA2010★ 48 cited

Detection of OH and HO towards Orion~KL

H. Gupta, P. Rimmer, J. C. Pearson +76

We report observations of the reactive molecular ions OH, HO, and HO towards Orion KL with Herschel/HIFI. All three fine-structure transitions of OH…

astro-ph.GA2010★ 37 cited

Herschel observations of EXtra-Ordinary Sources (HEXOS): Observations of H2O and its isotopologues towards Orion KL

G. J. Melnick, V. Tolls, D. A. Neufeld +49

We report the detection of more than 48 velocity-resolved ground rotational state transitions of H2(16)O, H2(18)O, and H2(17)O - most for the first time - in both emission and abso…

astro-ph.GA2010★ 29 cited

Reversal of infall in SgrB2(M) revealed by Herschel/HIFI observations of HCN lines at THz frequencies

Rainer Rolffs, Peter Schilke, Claudia Comito +54

To investigate the accretion and feedback processes in massive star formation, we analyze the shapes of emission lines from hot molecular cores, whose asymmetries trace infall and…

astro-ph.SR2010★ 31 cited

Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution

N. R. Crockett, E. A. Bergin, S. Wang +60

We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HI…

astro-ph.GA2010★ 111 cited

Detection of hydrogen fluoride absorption in diffuse molecular clouds with Herschel/HIFI: a ubiquitous tracer of molecular gas

P. Sonnentrucker, D. A. Neufeld, T. G. Phillips +47

We discuss the detection of absorption by interstellar hydrogen fluoride (HF) along the sight line to the submillimeter continuum sources W49N and W51. We have used Herschel's HIFI…

astro-ph.GA2010★ 42 cited

Herschel observations of ortho- and para-oxidaniumyl (H2O+) in spiral arm clouds toward Sgr B2(M)

P. Schilke, C. Comito, H. S. P. Mueller +55

H2O+ has been observed in its ortho- and para- states toward the massive star forming core Sgr B2(M), located close to the Galactic center. The observations show absorption in all…

astro-ph.GA2009★ 56 cited

Modelling line emission of deuterated H_3^+ from prestellar cores

O. Sipilä, E. Hugo, J. Harju +3

Context: The depletion of heavy elements in cold cores of interstellar molecular clouds can lead to a situation where deuterated forms of H_3^+ are the most useful spectroscopic pr…