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CH3SC(O)H observed line frequencies and strengths
S-methyl thioformate CH_3_SC(O)H is a monosulfur derivative of methyl formate, a relatively abundant component of the interstellar medium (ISM). S-methyl thioformate being,... -
Hot aminoacetonitrile in Sgr B2
Aminoacetonitrile, a molecule detected in the interstellar medium only towards the star-forming region Sagittarius B2 (Sgr B2) thus far, is considered an important prebiotic... -
Chemical abundance analysis of HD 20
Metal-poor stars with available detailed information about their chemical inventory pose powerful empirical benchmarks for nuclear astrophysics. Here we present our... -
Acetaldehyde CH_2_DCOH and CH_3_COD
Detection of deuterated species may provide information on the evolving chemistry in the earliest phases of star-forming regions. For molecules with two isomeric forms of the... -
Atomic data for unblended lines in FGK stars
Fundamental atomic transition parameters, such as oscillator strengths and rest wavelengths, play a key role in modelling and understanding the chemical composition of stars in... -
Isotopic H_2_NCN laboratory spectroscopic study
Cyanamide is one of the few interstellar molecules containing two chemically different N atoms. It was detected recently toward the solar-type protostar IRAS 16293-2422 B... -
Spectroscopy of CH2(CN)2 and CNCH2CN
Nitriles constitute almost 20% of the molecules observed in the interstellar medium, whereas only one dinitrile and one isocyanonitrile compound have been detected up to now.... -
Isotopic H_2_CS laboratory spectroscopic study
Thioformaldehyde is an abundant molecule in various regions of the interstellar medium. However, available laboratory data limit the accuracies of calculated transition... -
HSCO^+^ and DSCO^+^ lines
Protonated molecular species have been proven to be abundant in the interstellar gas. This class of molecules is also pivotal for the determination of important physical... -
Rotational spectrum of methoxyacetaldehyde
Methoxyacetaldehyde belongs to a group of structural isomers with the general formula C_3_H_6_O_2_, of which methyl acetate and ethyl formate are known interstellar molecules.... -
Variation of MgHe line profile with temperature
Line shapes of the magnesium resonance lines in white dwarf spectra are determined by the properties of magnesium atoms and the structure of the white dwarf atmosphere. Through... -
g'G'Ag-CH3CH2CHOHCH2OH transition frequencies
The continuously enhanced sensitivity of radioastronomical observations allows the detection of increasingly complex organic molecules. These systems often exist in a large... -
ATHOS. Flux ratio based stellar parameterization
The rapidly increasing number of stellar spectra obtained by existing and future large-scale spectroscopic surveys feeds a demand for fast and efficient tools for the... -
IRC+10216 as a spectroscopic laboratory
This work presents a detailed analysis of the laboratory and astrophysical spectral data available for ^28^SiC_2_, ^29^SiC_2_, ^30^SiC_2_, Si^13^CC, and Si_2_C. New data on the... -
Variability of the adiabatic parameter
Numerical models of the evolution of interstellar and intergalactic plasmas often assume that the adiabatic parameter {gamma} (the ratio of the specific heats) is constant (5/3... -
Rest frequencies of dithioformic acid
A better understanding of sulphur chemistry is needed to solve the interstellar sulphur depletion problem. A way to achieve this goal is to study new S-bearing molecules in the... -
VUV absorption cross section of CO_2_
We quantify the temperature dependency of the VUV absorption cross section of carbon dioxide. The VUV absorption cross section of CO_2_ increases with the temperature. The... -
Interstellar dust through the Fe K-edge
The chemical and physical properties of interstellar dust in the densest regions of the Galaxy are still not well understood. X-rays provide a powerful probe since they can... -
Millimeter wave spectra of carbonyl cyanide
More than 30 cyanide derivatives of simple organic molecules have been detected in the interstellar medium, but only one dicarbonitrile has been found and that very recently.... -
Millimeter wave spectrum of methyl cyanate
The recent discovery of methyl isocyanate (CH_3_NCO) in Sgr B2(N) and Orion KL makes methyl cyanate (CH_3_OCN) a potential molecule in the interstellar medium. The aim of this...
