Articles | Volume 17, issue 6
https://doi.org/10.5194/acp-17-4177-2017
https://doi.org/10.5194/acp-17-4177-2017
Research article
 | 
28 Mar 2017
Research article |  | 28 Mar 2017

Measuring FeO variation using astronomical spectroscopic observations

Stefanie Unterguggenberger, Stefan Noll, Wuhu Feng, John M. C. Plane, Wolfgang Kausch, Stefan Kimeswenger, Amy Jones, and Sabine Moehler

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Latest update: 23 Jul 2024
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Short summary
This study focuses on the analysis of astronomical medium-resolution spectra from the VLT in Chile to measure airglow pseudo-continuum emission of FeO in the optical regime. Compared to OH or Na emissions, this emission is difficult to measure. Using 3.5 years of spectroscopic data, we found annual and semi-annual variations of the FeO emission. Furthermore, we used WACCM to determine the quantum yield of the FeO-producing Fe + O3 reaction in the atmosphere, which has not been done before.
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