Hydroxyl emission

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hydroxyl emission

(Also known as Meinel bands.) Spectroscopic feature seen in the upper atmosphere; a form of chemiluminescence due to the formation of vibrationally excited hydroxyl radicals in the reaction of hydrogen atoms with ozone,

The origin of the emission was correctly identified by A. Meinel in the 1950s. The emission is a component of the airglow.

Meinel, A. B. 1950. OH emission bands in the spectrum of the night sky. Astrophys. J.. 111. 555–564.

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