https://astrobiology.com/2022/10/pah-emission-from-star-forming-galaxies-in-jwst-mid-infrared-imaging-of-the-lensing-cluster-smacs-j0723-3−7327.html
The mid-infrared spectra of star-forming galaxies (SFGs) are characterized by characteristic broad PAH emission features at 3−20 μm.
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