Highly excited rotational states of the Meinel system of OH

Autor:	Mark C. Abrams, Sumner P. Davis, M. L. P. Rao, Rolf Engleman
Rok vydání:	1990
Předmět:	Physics Infrared Infrared spectroscopy Astronomy and Astrophysics Quantum number Spectral line symbols.namesake Fourier transform Space and Planetary Science Quantum mechanics Excited state symbols Atomic physics Inductively coupled plasma Excitation
Zdroj:	The Astrophysical Journal. 363:326
ISSN:	1538-4357 0004-637X
DOI:	10.1086/169346
Popis:	The OH infrared spectrum, produced in an inductively coupled plasma discharge, has been measured with a Fourier transform spectrometer between 1850 and 5768/cm. This source was chosen in order to study the high-rotational quantum number levels of the OH Meinel bands. Two bands in the Delta-v = 1 sequence were observed, and extended to high J values: the P branch of the 1-0 band was observed up to J - 27.5 and the R branch to 13.5. The P branch of the 2-1 band was observed up to J = 25.5 and the R branch to 12. 5. Nonperturbative rotational crossings were observed in both the 1-0 and 2-1 bands. A global nonlinear least-squares fit of the 1-0 and 2-1 bands yielded equilibrium molecular parameters with a standard deviation of 0.0024/cm. 19 refs.
Databáze:	OpenAIRE
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