Downward flux of atmospheric 63-µm emission from atomic oxygen at balloon altitudes

The 63-µm emission line from the ground electronic state fine-structure transition (3P1–3P2) of atomic oxygen, first suggested as a major source of thermospheric cooling by Bates1 and subsequently discussed theoretically2,3, has been measured over a range of thermospheric altitudes4–6. The rocket measurements showed that the downward intensity remained… CONTINUE READING