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Fig. F.1

Fig. F.1 Refer to the following caption and surrounding text.

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Heat-map demonstrating the strength of correlations between the 6-9 μm components when normalized to the 11.207 μm PAH component, where the intersection between two components displays their correlation coefficient. Redder boxes indicate a strong correlation, bluer boxes indicate a strong anticorrelation, and light boxes are present when there is little-to-no correlation.

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