High-resolution Fourier transform spectroscopy of the Meinel system of OH

Autor:	Sumner P. Davis, Rolf Engleman, Mark C. Abrams, M. L. P. Rao, James W. Brault
Rok vydání:	1994
Předmět:	Physics Infrared Diffusion flame Airglow Analytical chemistry Infrared spectroscopy Astronomy and Astrophysics Spectral line Fourier transform spectroscopy symbols.namesake Fourier transform Nuclear magnetic resonance Space and Planetary Science symbols High Energy Physics::Experiment Excitation
Zdroj:	The Astrophysical Journal Supplement Series. 93:351
ISSN:	1538-4365 0067-0049
DOI:	10.1086/192058
Popis:	The infrared spectrum of the hydroxyl radical OH, between 1850 and 9000/cm has been measured with a Fourier transform spectrometer. The source, a hydrogen-ozone diffusion flame, was designed to study the excitation of rotation-vibration levels of the OH Meinel bands under conditions similar to those in the upper atmosphere which produce the nighttime OH airglow emission. Twenty-three bands were observed: nine bands in the Delta upsilon = 1 sequence, nine bands in the Delta upsilon = 2 sequence, and five bands in the Delta upsilon = 3 sequence. A global nonlinear least-squares fit of 1696 lines yielded molecular parameters with a standard deviation of 0.003/cm. Term values are computed, and transition frequencies in the Delta upsilon = 3, 4, 5, 6 sequences in the near-infrared are predicted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d9a72e71d1c13d367105759231743695 https://doi.org/10.1086/192058 Zobrazit plný text záznamu