UV photoprocessing of CO2 ice: a complete quantification of photochemistry and photon-induced desorption processes

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Table 4

Initial destruction or formation cross sections of the species during UV irradiation of a pure CO₂ ice analog.

Species	σ_des/form (cm²)^a

CO₂	9.5 × 10^-18
CO	5.71 × 10^-18
CO₃	3.1 × 10^-18
O₂	1.1 × 10^-18^b
O₃	1.0 × 10^-17

Notes.

^(a)

Uncertainties of 20−30% are expected due to the uncertainty in the measurement of the column densities in the ice.

^(b)

Upper limit (see text).

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