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 …

Context. Increasingly, Oort Cloud comets are being discovered at great distances from the
Sun and tracked over ever wider ranges of heliocentric distances as observational …

Since the observation of the first sulfur-containing molecule, carbon monosulfide (CS), in the
interstellar medium (ISM) half a century ago, sulfur-bearing species have attracted great …

Water ices at 15 and 144 K were bombarded by swift heavy ions, 45.8 MeV 58Ni11+ and
606 MeV 64Zn26+, to measure the induced chemical and physical effects. The column …

Ketoaldehydes are key intermediates in biochemical processes including carbohydrate,
lipid, and amino acid metabolism. Despite their crucial role in the interstellar synthesis of …

Carbon monoxide (CO) plays a vital role in interstellar chemistry, existing abundantly in both
gaseous and frozen environments. Understanding the radiation-driven chemistry of CO-rich …

Infrared (IR) spectral features of interstellar and solar system ices have been attributed to
solid organic and inorganic compounds for over 50 yr, but in many cases the laboratory IR …

Context. S-bearing molecules are powerful tools for determining the physical conditions
inside a massive star-forming region. The abundances of S-bearing molecules, including H …

Enols—tautomers of ketones or aldehydes—are considered key intermediates in the
formation of prebiotic sugars and sugar acids. Although laboratory simulation experiments …

Aims. Astrophysical ices on dust grain mantles in the interstellar medium (ISM) and dense
circumstellar envelopes (CSEs) are continuously exposed to galactic cosmic rays (GCRs). In …