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Fig. 4.
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[N II]λ6584 Å/Hα ratios for 88 clumps and the [S II]λλ6716, 6731 / Hα ratios for 49 clumps trailing NGC 4569 versus the distance from the nucleus of NGC 4569. Dashed lines show the median ratios. The uncertainty is 1σ.
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