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Fig. 11

image

Detail of the predicted H2S gas-phase abundance in TMC 1 (left) and Barnard 1b (right) according to the different desorption schemes in a 0-dimensional simulation, and the observed H2S gas-phase abundances, plotted as a function of density and the time according to a freefall collapse. The shaded band encloses the density interval where the change in desorption scheme occur.

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