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Fig. 9.
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Result from RADEX modelling for NGC 4418. The line ratio of H2S 22, 0 − 21, 1 to H2S 11, 0 − 10, 1 (in colour) is plotted in the parameter spaces: left: nH2 vs. Tkin; middle: NH2S vs. Tkin; and right: NH2S vs. nH2.
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