The interstellar medium is characterized by a rich and diverse chemistry. Many of its
complex organic molecules are proposed to form through radical chemistry in icy grain …

Chemical reactions on the surface of cosmic ice dust play an important role in chemical
evolution in space. Among the many kinds of molecules observed, the abundances of some …

Context. Gas-phase complex organic molecules are commonly detected in the warm inner
regions of protostellar envelopes, so-called hot cores. Recent models show that …

Gaseous H 2 O has been detected in several cold astrophysical environments, where the
observed abundances cannot be explained by thermal desorption of H 2 O ice or by H 2 O …

Context. A longstanding problem in astrochemistry is how molecules can be maintained in
the gas phase in dense inter-and circumstellar regions at temperatures well below their …

Amino acids have been identified in carbonaceous chondrites, but their origin is yet
unknown. Previous work has shown that a variety of amino acids can be formed via …

Hydrogen cyanide (HCN) has been identified in the gas phase of the interstellar medium as
well as in the comae of several comets. Terrestrially, HCN is a key component in the …

Within the cold regions of space, ices that are enriched with carbon monoxide (CO)
molecules are exposed to ionizing radiation, which triggers new reactions and desorption …

Aims. We present the novel InterStellar Astrochemistry Chamber (ISAC), designed for
studying solids (ice mantles, organics, and silicates) in interstellar and circumstellar …

We report measurements of the vacuum ultraviolet (VUV) emission spectra of a microwave-
discharge hydrogen-flow lamp (MDHL), a common tool in astrochemistry laboratories …