Highly excited rotational states of the Meinel system of OH

Details Highly excited rotational states of the Meinel system of OH Highly excited rotational states of the Meinel system of OH

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...363..326a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 363, Nov. 1, 1990, p. 326-330. Research supported by NSF, Los Alamos Nation

Astronomy and Astrophysics

Astrophysics

8

Atmospheric Chemistry, Hydroxyl Radicals, Molecular Excitation, Molecular Rotation, Fourier Transformation, Infrared Spectra, Molecular Spectra

Scientific paper

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.

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