Fig. 4
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Observed spectrum of IRAS 2A (blue) surrounding the 7.2 µm and 7.4 µm ice absorption features with SO2 (ν3) emission. The best-fit SO2 model of van Gelder et al. (2024) is presented in green and the SO2 subtracted spectrum of IRAS2A is shown in orange. Subtracting the SO2 emission clearly reveals the 7.4 µm absorption feature.
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