Measurement of relative oscillator strengths for Ti I. III Weak transitions from levels a3F(3, 4) (0.02 eV, 0.05 eV), a5F(1-5) (0.81 eV-0.85 eV), a1D(2) (0.90 eV), a3P(0-3) (1.05 eV-1.07 eV) with solar analysis (for spectrum analysis of cool stars)

The relative oscillator strengths presently given for 18 weak 1-eV and two 0-eV lines of Ti I have been measured with a relative accuracy of 5 percent by means of the Oxford furnace technique. Relative values are placed on the absolute scale previously derived for stronger 0- and 1-eV lines, and a solar analysis is made for the most suitable lines as a test of their oscillator strengths. Although this is not regarded as a definitive solar analysis, because of the weakness of the solar lines, the value of log A = 5.08, with a microturbulence value of 0.89 km/sec, both agree well with those already found for stronger 0-eV lines.