Difference between revisions of "Airglow"

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Latest revision as of 17:00, 30 March 2007

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Airglow


The quasi-steady radiant emission from the upper atmosphere as distinguished from the sporadic emission of the auroras.
Airglow is a chemiluminescence due primarily to the emission of the molecules O2 and N2, the radical OH, and the atoms O and Na. Emissions observed in airglow could arise from three-body atom collisions forming molecules, from two-body reactions between atoms and molecules, or from recombination of ions.

Historically, airglow has referred to visual radiation.

Some recent studies use airglow to refer to radiation outside the visual range.

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use