Molecular hydrogen is the most abundant molecule in the universe. It is the first one to form
and survive photo-dissociation in tenuous environments. Its formation involves catalytic …

1.1. Interstellar Clouds and Interstellar Chemistry A space between stars is not completely a
vacuum, but is filled up with interstellar gas, whose average number density of H nuclei in all …

To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

Abstract The Cologne Database for Molecular Spectroscopy, CDMS, was founded 1998 to
provide in its catalog section line lists of mostly molecular species which are or may be …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

Context. The physical and chemical conditions in Class 0/I protostars are fundamental in
unlocking the protostellar accretion process and its impact on planet formation. Aims. The …

Using data from the Green Bank Telescope (GBT) Observations of TMC-1: Hunting for
Aromatic Molecules (GOTHAM) survey, we report the first astronomical detection of the C 10 …

Context. Massive stars form within dense clumps inside giant molecular clouds (GMCs).
Finding appropriate chemical tracers of the dense gas (n (H 2)> several 10 4 cm− 3 or AV> 8 …

Context. Vacuum-ultraviolet (VUV) photons are important drivers of chemical processes in
space. Thus, it is important to accurately characterize and constrain photorates in different …

Context. The availability of large bandwidth receivers for millimeter radio telescopes allows
for the acquisition of position-position-frequency data cubes over a wide field of view and a …