Herschel HIFI observations of O${}_2$ toward Orion: special conditions for shock enhanced emission

Jo-Hsin Chen, Paul F. Goldsmith, Serena Viti +18

We report observations of molecular oxygen (O${}_2$) rotational transitions at 487 GHz, 774 GHz, and 1121 GHz toward Orion Peak A. The O2 lines at 487 GHz and 774 GHz are detected at…