Table 4: New Ir I lifetimes, wavelengths, branching fractions, and transition probabilities.

Upper level		 Lower level $\sigma$ $\lambda_{{\rm air}}$ $BF_{\exp.}$ $BF_{\rm th.}$ Aik Unc.
lifetime   (cm-1) (Å)     (106 s-1) (%)

5d76s(5F)6p z $^{6}{\rm F}_{11/2}$		 5d76s2 a4F9/2 28 452.318 3513.647 0.892 0.973 2.79 9
$\tau= 320$ ns 5d8(3F)6s b4F9/2 25 617.333 3902.501 0.107 0.026 0.33 11
  Residual     0.001      
5d76s(5F)6p z $^{6}{\rm D}_{9/2}$ 5d76s2 a4F9/2 26 307.462 3800.124 0.965 0.996 1.67 2
$\tau= 580$a ns 5d8(3F)6s b4F9/2 23 472.485 4259.108 0.031 0.001 0.05 7
  Residual     0.001      
a Lifetime measurements by Gough et al. (1983).

Source LaTeX | All tables | In the text