PREDNASAJUCI / LECTURER : Z. Kaňuchová

NAZOV / TITLE : Ozone production in electron irradiated CO2:O2 ices

ABSTRAKT / ABSTRACT :

In this study, the 1 keV electron irradiation of
a series of stoichiometrically distinct CO2:O2 astrophysical ice
analogues including the two pure end-members and 12 binary mixtures,
has been studied. We have been able to successfully quantify the O3
productivity of these ice mixtures as a result of their irradiation,
and have determined that the formation efficiency of this species
decreases upon the introduction of CO2 to a pure O2 ice. Using
mid-infrared spectroscopy, we have also been able to perform a
characterization of the O3 asymmetric stretching mode (ν3) in each of
the electron irradiated ices. Our results may prove useful in the
interpretation of data collected by forthcoming interplanetary
missions, and may provide an insight into the formation mechanism of
the O3 already observed on several outer Solar System bodies.