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Fig. 4


Mean gas opacity: comparison with Freedman et al. (2008). The Rosseland means (top panel) and the Planck means (bottom panel) as a function of gas temperature. The open squares are data from Freedman et al. (2008), the filled circles are from this work. Each curve corresponds to a constant gas density ρ [g cm-3] = 10-3, 10-5, 10-8 as labelled in the upper panel. In the lower panel the different lines are difficult to distinguish because the Planck mean is less sensitive to density.

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