Fig. 2
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t-FA/c-FA over time as a function of the IUD ratio. In the legend, t and c indicate the isomeric form and the numbers the percentage of desorption of each of them in the t-HOCO + H ⟶ (t/c)–HCOOH reaction. Horizontal lines represent the gas-phase observational abundances of both isomers in the Barnard-5 molecular cloud (Taquet et al. 2017), L483 (Agúndez et al. 2019) and TMC-1 (this work).
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