Fig. 12
Required value of G0 for three different H2 densities, 105, 106, 107 cm-3 as a function of gas temperature to reach an equilibrium H2O abundance of 2 × 10-6, assuming photodissociation is the only path of destruction. The results from the network including OH from Bethell & Bergin (2009) are shown with dashed lines for the same densities.
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