Relative oscillator strengths are given for 18 weak 1 eV and two 0 eV lines of Ti I, which had been omitted from our previous study of 0 eV lines, chosen to be suitable for the analysis of the spectra of cool stars. These lines have been measured with a relative accuracy of 5 per cent using the Oxford furnace technique. The relative values are placed on the absolute scale already derived for stronger 0 and 1 eV lines. A solar analysis is made for the most suitable lines as a test of their oscillator strengths, but this is not regarded as a definitive solar analysis because of the weakness of the solar lines. Nevertheless, the values of log A = 5.08 with microturbulence ξ = 0.89 km s−1 agree well with those already found for stronger 0 eV lines, viz. log A = 5.08 with ξ = 1.00 km s−1.
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Blackwell et al. (1983) studied this question.