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 …

Since we intend to review experimental and theoretical studies of physicochemical
processes occurring on cosmic dust grains in very cold regions in space, we start with a brief …

Molecular absorption and emission bands dominate the visible, infrared, and submillimeter
spectra of most objects with associated gas. These observations reveal a surprisingly rich …

From the frontiers of research on ice dynamics in its broadest sense, this review surveys the
structures of ice, the patterns or morphologies it may assume, and the physical and chemical …

Recent laboratory measurements have confirmed that chemical desorption (desorption of
products due to exothermic surface reactions) can be an efficient process. The impact of …

We survey the current situation regarding chemical modelling of the synthesis of molecules
in the interstellar medium. The present state of knowledge concerning the rate coefficients …

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 …

Although still poorly understood, the chemistry that occurs on the surfaces of interstellar dust
particles profoundly affects the growth of molecules in the interstellar medium. An important …

Even though water is the main constituent in interstellar icy mantles, its chemical origin is not
well understood. Three different formation routes have been proposed following …

Context. Mantles of iced water mixed with carbon monoxyde, formaldehyde, and methanol
are formed during the so-called prestellar core phase. In addition, radicals are also thought …