FeO "Orange Arc" Emission Detected in Optical Spectrum of Leonid Persistent Train

We report the detection of a broad continuum emission dominating the visual spectrum of a Leonid persistent train. A comparison with laboratory spectra of FeO "orange arc" emission at 1 mbar shows a general agreement of the band position and shape. The detection of FeO confirms the classic...

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Bibliographic Details
Published in:Earth, moon, and planets moon, and planets, 1998-01, Vol.82-83, p.429-438
Main Authors: Jenniskens, Peter, Lacey, Matt, Allan, Beverley J, Self, Daniel E, Plane, John M.C
Format: Article
Language:English
Subjects:
Continuum radiation
Emission spectra
Emissions
Iron
Oxygen
Oxygen atoms
Ozone
Sodium
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Summary:We report the detection of a broad continuum emission dominating the visual spectrum of a Leonid persistent train. A comparison with laboratory spectra of FeO "orange arc" emission at 1 mbar shows a general agreement of the band position and shape. The detection of FeO confirms the classical mechanism of metal atom catalyzed recombination of ozone and oxygen atoms as the driving force behind optical emission from persistent trains. Sodium and iron atoms are now confirmed catalysts.
ISSN:0167-9295
1573-0794
DOI:10.1023/A:1017079725808