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Fig. 5

image

Chemical profile of a clump with a surface volume hydrogen densities of n(H)= 103 cm-3 and a mass of 10 M penetrated by a standard Drain field of χ = 1. The relative densities of H0, H2, C+, C0, 12/13CO, and HCO+ as function of AV are shown by the black/grey lines (left axis). The temperature profile within the clump is shown by the red line (right axis).

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