Astrophysical ices are exposed to different radiation fields including photons, electrons and
ions. The latter stem from interstellar cosmic rays (CR), the solar and stellar winds, shock …

The use of infrared spectra to determine molecular abundances of icy astronomical objects
and to study their chemistry requires laboratory measurements of reference spectra and …

We experimentally address in this paper the physicochemical effects induced by ionizing
photons (energies from 6 to 2000 eV) and swift heavy ions (15.7 MeV 16 O 5+) in the icy …

The effect of radical accumulation in ice, under high energy particle irradiation at low
temperature followed by the energy release during heating, has been proposed as a …

ABSTRACT H2O: CO, at concentrations of (3: 2) and (10: 1), was condensed on CsI
substrate at 15 K and irradiated with 46-MeV 58Ni11+ ion beam. Radiolysis induced by fast …

Context. Molecular oxygen, nitrogen, and ozone have been detected on some satellites of
Saturn and Jupiter, as well as on comets. They are also expected to be present in ice-grain …

The only known phosphorus-containing organic compounds of extraterrestrial origin,
alkylphosphonic acids, were discovered in the Murchison meteorite and have accelerated …

The radiolysis of pure N2O ice at 11 and 75 K by 90 MeV 136Xe23+ ion irradiation has been
studied by Fourier-transformed infrared spectroscopy (FTIR). Six daughter molecular …

Experimental results on the processing of NH3: CO ice mixtures of astrophysical relevance
by energetic (538 MeV 64Ni24+) projectiles are presented. NH3 and CO are two molecules …

In order to investigate the role of medium mass cosmic rays and energetic solar particles in
the processing of N2-rich ice on frozen moons and cold objects in the outer solar system, the …