Systematic investigation of CO₂ : NH₃ ice mixtures using mid-IR and VUV spectroscopy - part 2: electron irradiation and thermal processing.

ABSTRACT: Many experimental parameters determine the chemical and physical properties of interstellar ice analogues, each of which may influence the molecular synthesis that occurs in such ices. In part 1, James et al., RSC Adv., 2020, 10, 37517, we demonstrated the effects that the stoichiometric mixing ratio had on the chemical and physical properties of CO₂ : NH₃ mixtures and the impact on molecular synthesis induced by thermal processing. Here, in part 2, we extend this to include 1 keV electron irradiation at 20 K of several stoichiometric mixing ratios of CO₂ : NH₃ ices followed by thermal processing. We demonstrate that not all stoichiometric mixing ratios of CO₂ : NH₃ ice form the same products. Not only d

SUBMITTER: James RL 

PROVIDER: S-EPMC9042239 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature