On the synthesis of N-O bearing species in astrophysical ices - an infrared spectroscopic study using heavy-ion irradiation of solid N2: CO samples

ABSTRACT The interstellar chemistry of nitrogen is considerably less understood than the other common elements, such as carbon and oxygen. Even though a relatively large number species containing atoms have already been detected in medium, only six them bear nitrogen–oxygen (N–O) bond. Some astrophysical primeval Earth models suggest that N–O species, hydroxylamine (NH2OH), are potential precursors prebiotic amino acids, even peptides. In this work, we analyzed an apolar ice mixture N2:CO interest to investigate possible formation mechanisms bearing molecules due processing sample by 64Ni24+ 538 MeV ions (8.4 MeV/u) at 14 K. results show simple oxides ($\rm {N_{1 - 2}}{O_y})$, but no CN–O any kind. We also determined cross-sections some products, well destruction products. presented here discussed light our previous work on NH3:CO mixture, which found all.