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Title:
Millimeter-wave spectrum of the CCO radical
Authors:
Yamada, C.; Saito, S.; Kanamori, H.; Hirota, E.
Affiliation:
AA(Institute for Molecular Science, Okazaki, Aichi, Japan), AB(Institute for Molecular Science, Okazaki, Aichi, Japan), AC(Institute for Molecular Science, Okazaki, Aichi, Japan), AD(Institute for Molecular Science, Okazaki, Aichi, Japan)
Publication:
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 290, March 15, 1985, p. L65, L66. (ApJL Homepage)
Publication Date:
03/1985
Category:
Atomic and Molecular Physics
Origin:
STI
NASA/STI Keywords:
Abundance, Carbon Suboxides, Microwave Spectra, Millimeter Waves, Molecular Spectra, Transition Probabilities, Carbon Monoxide, Hamiltonian Functions, Interstellar Matter, Least Squares Method, Radicals, Rotational Spectra
DOI:
10.1086/184444
Bibliographic Code:
1985ApJ...290L..65Y

Abstract

The pure rotational spectrum of the CCO radical in the 3Sigma- ground electronic state has been observed in the laboratory in the region 45 - 185 GHz. The radical was generated in a 3.5 m long free space absorption cell by a DC glow discharge in carbon suboxide (C3O2). Seven rotational transitions of N = 2<-1 to 8<-7 in each triplet sublevels were precisely measured and the observed frequencies were least-squares analyzed to obtain molecular constants.

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