Salih, S. and Lawler, J. E. and Whaling, W. (1985) Lifetimes, branching ratios, and transition probabilities in Co ii. Physical Review A, 31 (2). pp. 744-749. ISSN 0556-2791. http://resolver.caltech.edu/CaltechAUTHORS:SALpra85
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The radiative lifetime of 14 levels in the z^5F, z^5D, and z^5G terms of Co ii have been measured with use of time-resolved laser fluorescence spectroscopy with a Co+-ion beam. Our lifetime values are shorter by 15–50 % than earlier results from beam-foil time-of-flight measurements. The lifetimes were converted to 41 individual transition probabilities with use of branching ratios measured on spectra recorded with the 1-m Fourier-transform spectrometer at the Kitt Peak National Observatory. On average our transition probabilities agree with those of Kurucz and Peytremann; for ΔS=1 transitions their calculated values are lower than our experimental results by a factor of ∼(1/4).
|Additional Information:||©1985 The American Physical Society Received 24 August 1984 This research was supported in part by National Science Foundation Grants Nos. AST-83-00948 and AST-83-17713. We are indebted to J. W. Brault and the National Solar Observatory-National Optical Astronomical Observatory (NSO-NOAO) staff for assistance with the KPFTS spectra. The National Solar Observatory is operated by Association of Universities for Research in Astronomy (AURA), Inc., under contract with the National Science Foundation.|
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