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The Problem of CO2 Reabsorption in Emission Spectra
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SYSNO ASEP 0582244 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title The Problem of CO2 Reabsorption in Emission Spectra Author(s) Civiš, Svatopluk (UFCH-W) RID, ORCID, SAI
Pastorek, A. (US)
Yurchenko, S. N. (GB)Source Title Earth and Planetary Science
Roč. 2, č. 1 (2023), s. 49-54Number of pages 6 s. Language eng - English Country SG - Singapore Keywords reabsorption ; carbon dioxide ; FTIR spectroscopy Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects EF16_019/0000778 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UFCH-W - RVO:61388955 DOI 10.36956/eps.v2i1.836 Annotation The authors present a detailed explanation for selective reabsorption by the CO2 ν3-band when passing its optical emission through an atmospheric-pressure air column (60 cm long, 410 ppm CO2) connecting a microwave-discharge cell and the entrance window of a high-resolution Fourier Transform spectrometer. The CO2 band shapes are explained with a two-temperature model of emission and foreground absorption. Selective CO2 atmospheric reabsorption is a common effect in optical emission measurements. It primarily affects the fundamental infrared bands, which comprise the main part of the missing laboratory emission and must be taken into account in (exo)planetary atmospheric models. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2024 Electronic address https://journals.nasspublishing.com/index.php/eps/article/view/836
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