SOFIA/FIFI-LS Full-disk [CII] Mapping and CO-dark Molecular Gas across the Nearby Spiral Galaxy NGC 6946

F. Bigiel, I. de Looze, A. Krabbe +17

We present SOFIA/FIFI-LS observations of the [CII] 158$\mu$m cooling line across the nearby spiral galaxy NGC 6946. We combine these with UV, IR, CO, and H I data to compare [CII] em…