Table 2: Compilation of spectral line pairs with identical line opacities.
Ion Wavelength Excitation $\log(gf)$ $\bar g_{\rm eff}$
  (nm) potential (eV)    

Fe I		 400.560 4.186 -2.131 2.0000
Fe I 453.894 4.186 -2.131 0.8333
Fe I 402.473 3.241 -0.710 0.6250
Fe I 408.530 3.241 -0.710 1.7083
Ti I 406.509 1.053 -0.760 1.5000
Ti I 469.876 1.053 -0.760 1.0000
V I 410.516 0.267 -0.130 1.5000
V I 440.851 0.267 -0.130 1.4667
Fe I 412.180 2.832 -1.300 0.6667
Fe I 899.956 2.832 -1.300 1.5000
Na I 421.606 2.104 -2.350 1.1000
Na I 454.518 2.104 -2.350 1.1667
Fe I 428.582 3.640 -1.780 1.1667
Fe I 496.870 3.640 -1.780 0.8333
Ca I 435.508 2.709 -0.430 1.0000
Ca I 452.693 2.709 -0.430 1.0000
Fe I 443.834 3.686 -1.630 2.5000
Fe I 466.806 3.686 -1.630 1.7500
Mn I 445.301 2.941 -0.490 1.5000
Mn I 473.909 2.941 -0.490 0.8000
Fe I 456.531 3.274 -2.510 2.0000
Fe I 479.125 3.274 -2.510 0.5000
Fe I 457.982 3.071 -2.830 1.7500
Fe I 718.915 3.071 -2.830 1.0000
Fe I 461.929 3.603 -1.120 1.8333
Fe I 463.801 3.603 -1.120 1.7917
Fe I 463.585 2.845 -2.420 2.2500
Fe I 635.503 2.845 -2.420 1.0000
Ti I 469.133 1.067 -0.840 1.1667
Ti I 586.645 1.067 -0.840 1.1667
Fe I 480.065 4.143 -1.260 1.0000
Fe I 518.792 4.143 -1.260 1.0000
Si I 540.466 5.614 -0.530 2.0000
Si I 548.898 5.614 -0.530 2.0000
Si I 540.466 5.614 -0.530 2.0000
Si I 623.732 5.614 -0.530 2.0000
Si I 540.985 5.616 -0.690 2.0000
Si I 624.447 5.616 -0.690 2.0000
Si I 548.898 5.614 -0.530 2.0000
Si I 623.732 5.614 -0.530 2.0000
Fe I 560.294 3.430 -0.851 0.7500
Fe I 565.853 3.430 -0.851 2.2500
Si I 565.492 5.614 -0.930 2.0000
Si I 612.502 5.614 -0.930 2.0000


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