| HIGH RESOLUTION STUDY OF THE $B \leftrightarrow X$ SYSTEM OF ISOTOPIC SPECTES OF CO (1985) | |||||||||
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| Author Institution: Launay and Letzelter: Observatoire de Paris, D\'epartment d'Astrophysique Fondamentale (C.N.R.S. U.A. 812); Equipe de Spectroscopie (C.N.R.S. U.A. 171), Ecole des Mines; D\'epartement de Physique, Universit\'eA de Tours. The Vacuum Ultra-Violet Band Spectrum System $B{^{1}} \Sigma^{+} - X{^{1}}\Sigma^{+}$ of 12C160, 13C160, 12C180 and 13C180 have been extensively studied at High Resolution in both Absorption and Emission. In Absorption a band, observed in all isotopes, is shown to be $B \leftarrow X (v^{\prime}- 2,v^{\prime\prime} -0)$ with however anomalous vibrational spacing and rotational constants and a local perturbation. Some of the observed emission bands have not been reported before even at low resolution and none at high resolution. All of them exhibit sharp breaking off typical of predissociation of CO, giving directly an improved upper limit for the Dissociation Energy of the ground state of CO into C(3P)+O(3P). | |||||||||
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