Free Access

Table 8

VUV-absorption cross sections of O2 ice for different photon energies.

Irrad. energy σ
eV l cm2 molec/photoninc molec/photonabs

10.5 7.1 × 10-19 ~1 × 10-3 0.05
9.4 6.3 × 10-18 ~7 × 10-3 0.04
8.6 8.0 × 10-18 ~4.5 × 10-3 0.02
7.6 3.5 × 10-18 ~1.5 × 10-3 0.015

Notes. values were adapted from Fig. 3 of Fayolle et al. (2013) for the starting, maximum, and minimum photon energies (7.6, 9.4, and 10.5 eV). The 8.6 eV value was added because it also coincides with the average photon energy of our MDHL. The values in the table correspond to 30 ML of O2 ice (i.e., a column density of 30 × 1015 molecules cm-2), see Fayolle et al. (2013).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.