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Title:
Accurate far-infrared rotational frequencies of carbon monoxide
Authors:
Varberg, Thomas D.; Evenson, Kenneth M.
Affiliation:
AA(NIST, Time and Frequency Div., Boulder, CO), AB(NIST, Time and Frequency Div., Boulder, CO)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 385, Feb. 1, 1992, p. 763-765. (ApJ Homepage)
Publication Date:
02/1992
Category:
Atomic and Molecular Physics
Origin:
STI
NASA/STI Keywords:
Carbon Monoxide, Far Infrared Radiation, Interstellar Matter, Molecular Rotation, Rotational Spectra, Absorption Spectra, Ground State
DOI:
10.1086/170983
Bibliographic Code:
1992ApJ...385..763V

Abstract

This study presents high-resolution measurements of the pure rotational absorption spectrum of CO in its ground state for the range J arcsec - 5-37. A least-squares fit to this data set, augmented by previous microwave measurements of the J arcsec = 0-4 rotational transitions in the literature, determined accurate values for the molecular constants. A table of calculated CO rotational frequencies is provided for the range J arcsec = 0-45.

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