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Tackling the FeO orange bands puzzle in meteor and airglow spectra through combined astronomical and laboratory studiesстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 февраля 2021 г.
- Авторы: Popov A.M., Berezhnoy A.A., Borovička J., Labutin T.A., Zaytsev S.M., Stolyarov A.V.
- Журнал: Monthly Notices of the Royal Astronomical Society
- Том: 500
- Номер: 4
- Год издания: 2021
- Издательство: Oxford Journals, Oxford University Press
- Местоположение издательства: Oxford, UK, England
- Первая страница: 4296
- Последняя страница: 4306
- DOI: 10.1093/mnras/staa3487
- Аннотация: The iron oxide “orange arc” bands are unambiguously detected in persistent meteor trains, meteor wakes, and clouds, as well as in the terrestrial airglow. In contrast to the majority of other astronomically important diatomic molecules, theoretical simulation of the FeO rovibronic spectra is not feasible due to the extremely condensed and strongly perturbed multiplet structure of its excited states. In this work, the time-evolution of the laser-induced breakdown spectra (LIBS) of high-purity iron recorded in air at high temperature and impact conditions is used to mimic the FeO pseudo-continuum emission observed during meteor events and the terrestrial night airglow. The relative intensity distributions in the structural continuum of the LIBS spectra are measured at 530-660 nm and a plasma temperature of 1500-6500 K. The anomalous increase of the intensity observed at 620-640 nm and temperature < 2000 K could be attributed to the emission of higher oxdes of iron as explained by the conducted thermodynamic and kinetic modeling of iron burning in the atmosphere.
- Добавил в систему: Лабутин Тимур Александрович
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