Fig. 7.

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Lower panel: Median predicted N2, R23, , O3N2 and N2O2 as a function of the ionization parameter. The shaded regions indicate the interquartile range (25th–75th percentiles) of the line ratios in each ionization parameter bin. Additionally, we indicate the Spearman parameter (rS) and p-value for each indicator. Upper panel: Distribution of the median log(U) per spaxel.
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