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 …

The cross-disciplinary field of astrochemistry exists to understand the formation, destruction,
and survival of molecules in astrophysical environments. Molecules in space are …

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 …

Context. The vacuum-UV (VUV) absorption cross sections of most molecular solids present
in interstellar ice mantles with the exception of H 2 O, NH 3, and CO 2 have not been …

Context. Absorption of ultraviolet radiation by water ice coating interstellar grains can lead to
dissociation and desorption of the ice molecules. These processes are thought to be …

At the high densities and low temperatures found in star-forming regions, all molecules other
than H 2 should stick on dust grains on timescales shorter than the cloud lifetimes. Yet these …

The radiation induced chemical processing of methanol and methanol–carbon monoxide
ices at 5.5 K exposed to ionizing radiation in the form of energetic electrons and subsequent …

We study the influence of the turbulent transport on ice chemistry in protoplanetary disks,
focusing on carbon-and nitrogen-bearing molecules. Chemical rate equations are solved …

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

Aims. This work aims to study the unexplained sulfur depletion observed toward dense
clouds and protostars. Methods. We made simulation experiments of the UV …