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Oxygen Isotope Fractionation in the Martian Atmosphere Induced by CO2 Photolysis and O3 Formation

  • Authors: Tatsuya Yoshida, Shohei Aoki, Hiromu Nakagawa, Naoki Terada, Juan Alday, Akinori Hasebe, Yuki Nakamura, Shungo Koyama, Shotaro Sakai, Ryoya Sakata, Ann Carine Vandaele

Tatsuya Yoshida et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

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.

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