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Fig. D.2

image

Column densities (expressed in p-H2CS column density) at which the H2CS lines are optically thick at 100 K (blue) and 200 K (orange) based on the non-LTE RADEX calculation. For the ortho transitions, solid dark lines assume an ortho-to-para ratio of 1, and the shaded lines assume ortho-to-para ratios of 2 and 3 (lightest shade).

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