185 citations · 1.8k across the 34 of their papers we have counts for
34 papers
Pinning down electron correlations in RaF via spectroscopy of excited states and high-accuracy relativistic quantum chemistry
M. Athanasakis-Kaklamanakis, S. G. Wilkins, L. V. Skripnikov +53
We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with full…
Accurate \textit{ab initio} calculations of RaF electronic structure indicate the need for more laser-spectroscopical measurements
Andrei Zaitsevskii, Leonid V. Skripnikov, Nikolai S. Mosyagin +4
Recently a breakthrough has been achieved in laser-spectroscopic studies of short-lived radioactive compounds with the first measurements of the radium monofluoride molecule (RaF)…
The Rotationally Resolved Infrared Spectrum of TiO and Its Isotopologues
Daniel Witsch, Alexander A. Breier, Eileen Döring +3
In this study, we present the ro-vibrationally resolved gas-phase spectrum of the diatomic molecule TiO around 1000\,cm. Molecules were produced in a laser ablation source b…
Laboratory blueprints for interstellar searches of aromatic chiral molecules: rotational signatures of styrene oxide
Pascal Stahl, Benjamin E. Arenas, Sérgio R. Domingos +3
The tracking of symmetry-breaking events in space is a longlasting goal of astrochemists, aiming at an understanding of homochiral Earth chemistry. One current effort at this front…
Deciphering the Rotational Spectrum of the First Excited Torsional State of Propylene Oxide
Pascal Stahl, Benjamin E. Arenas, Oliver Zingsheim +5
The first excited torsional state of the chiral molecule propylene oxide, , is investigated from millimeter up to sub-millimeter wavelengths (75-950 GHz…
Accidental Interaction in the Torsional Spectrum of Singly Deuterated Hydrogen Peroxide HOOD
D. Herberth, T. F. Giesen, K. M. T. Yamada
We extended previously recorded infrared spectra of singly deuterated hydrogen peroxide (HOOD) to the submm-wavelength region and derived accurate molecular parameters and a semi-e…
Mass-independent analysis of the stable isotopologues of gas-phase titanium monoxide -- TiO
Alexander A. Breier, Björn Waßmuth, Guido W. Fuchs +2
More than 130 pure rotational transitions of TiO, TiO, TiO, TiO, TiO, and TiO are recorded using a high-resolution mm-wave superson…
The Millimeter-Wave Spectrum of Doubly Deuterated Propylene Oxide CHCHCDO
Pascal Stahl, Denis Kargin, Rudolf Pietschnig +2
Spectra of doubly deuterated propylene oxide, CHCHCDO, were recorded in the millimeter-wave spectral region up to 330 GHz utilizing a 2f frequency modulated Terahertz spect…
Determination of accurate rest frequencies and hyperfine structure parameters of cyanobutadiyne, HCN
Thomas F. Giesen, Michael E. Harding, Jürgen Gauss +2
Very accurate transition frequencies of HCN were determined between 5.3 and 21.4 GHz with a Fourier transform microwave spectrometer. The molecules were generated by passing a…
Deep search for hydrogen peroxide toward pre- and protostellar objects -- Testing the pathway of grain surface water formation
G. W. Fuchs, D. Witsch, D. Herberth +6
Context: In the laboratory, hydrogen peroxide (HOOH) was proven to be an intermediate product in the solid-state reaction scheme that leads to the formation of water on icy dust gr…
First detection of the carbon chain molecules 13CCC and C13CC towards SgrB2(M)
Thomas F. Giesen, Bhaswati Mookerjea, Guido W. Fuchs +4
We report the first detection of the isotopologues 13CCC and C13CC. We used the heterodyne receivers GREAT and upGREAT on board SOFIA to search for the ro-vibrational transitions Q…
Principles of enantio-selective excitation in three-wave mixing spectroscopy of chiral molecules
Monika Leibscher, Thomas F. Giesen, Christiane P. Koch
Three-wave mixing spectroscopy of chiral molecules, which exist in left-handed and right-handed conformations, allows for enantio-selective population transfer despite random orien…
Astronomical detection of a radioactive molecule 26AlF in a remnant of an ancient explosion
Tomasz Kamiński, Romuald Tylenda, Karl M. Menten +6
Decades ago, -ray observatories identified diffuse Galactic emission at 1.809 MeV originating from decays of an isotope of aluminium, Al, that has a mean-life time…
Detection of a dense clump in a filament interacting with W51e2
B. Mookerjea, C. Vastel, G. E. Hassel +8
In the framework of the Herschel/PRISMAS Guaranteed Time Key Program, the line of sight to the distant ultracompact HII region W51e2 has been observed using several selected molecu…
The chemistry of C3 & Carbon Chain Molecules in DR21(OH)
B. Mookerjea, G. Hassel, M. Gerin +14
(Abridged) We have observed velocity resolved spectra of four ro-vibrational far-infrared transitions of C3 between the vibrational ground state and the low-energy nu2 bending mode…
Herschel observations of Extra-Ordinary Sources: Methanol as a probe of physical conditions in Orion KL
S. Wang, E. A. Bergin, N. R. Crockett +45
We have examined methanol emission from Orion KL with of the {\em Herschel}/HIFI instrument, and detected two methanol bands centered at 524 GHz and 1061 GHz. The 524 GHz methanol…
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…
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…
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…
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…
Nitrogen hydrides in interstellar gas: Herschel/HIFI observations towards G10.6-0.4 (W31C)
C. M. Persson, J. H. Black, J. Cernicharo +49
The HIFI instrument on board the Herschel Space Observatory has been used to observe interstellar nitrogen hydrides along the sight-line towards G10.6-0.4 in order to improve our u…
Herschel observations of EXtra-Ordinary Sources: the present and future of spectral surveys with Herschel/HIFI
E. A. Bergin, T. G. Phillips, C. Comito +56
We present initial results from the Herschel GT key program: Herschel observations of EXtra-Ordinary Sources (HEXOS) and outline the promise and potential of spectral surveys with…
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…
Herschel observations of extra-ordinary sources: Detecting spiral arm clouds by CH absorption lines
S. -L. Qin, P. Schilke, C. Comito +67
We have observed CH absorption lines () against the continuum source Sgr~B2(M) using the \textit{Herschel}/HIFI instrument. With the high spectral…