Image Details
Caption: Figure 6.
Vertical profiles of δ18O, comparing the results obtained with the standard case (solid) and with artificial isotopic fractionation during the photolysis of O3, O2, H2O, H2O2, OH, and HO2 (dashed). The absorption cross sections of 18O-bearing isotopologues are reduced by 50‰ relative to those of the major isotopologues.
© 2026. The Author(s). Published by the American Astronomical Society.