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A series of laboratory measurements have been performed in order to provide a mechanistic interpretation for the visible shuttle glow. These studies involved interactions of an 8 km/s oxygen atom beam with both contaminant dosed surfaces and gaseous targets. We conclude that visible shuttle glow arises from surface mediated O + NO recombination via a Langmuir‐Hinshelwood mechanism and that the gas‐phase exchange reaction O + N 2 → NO + N provides a viable source of precursor NO above surfaces oriented in the ram direction.
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Caledonia et al. (1993) studied this question.
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