Table A.2
Calculated transition probabilities (A-values) and log(gf) s for electric dipole transitions of Ni II.
| λ (Å) | σ (cm−1) | Jeven | Eeven (cm−1) | Leveleven | Jodd | Eodd (cm−1) | Levelodd | A (s−1) | log(gf) | S |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976.676 | 50589.98* | 2.5 | 106007.64* | 3d8(1D)5s2D | 3.5 | 55417.66* | 3d8(3F)4p4D | 6.19 × 104 | −3.66 | 1.42 × 10−3 |
| 1976.584 | 50592.33* | 2.5 | 121227.60* | 3d8(3F)5d4F | 2.5 | 70635.27* | 3d8(3P)4p4D | 4.20 × 103 | −4.83 | 9.60 × 10−5 |
| 1976.301 | 50599.57* | 3.5 | 118293.99* | 3d8(3F)6s4F | 2.5 | 67694.42* | 3d8(1D)4p2F | 1.66 × 103 | −5.11 | 5.07 × 10−5 |
| 1976.072 | 50605.45* | 3.5 | 121240.72* | 3d8(3F)5d4G | 2.5 | 70635.27* | 3d8(3P)4p4D | 3.51 × 104 | −3.78 | 1.07 × 10−3 |
| 1975.699 | 50614.99* | 2.5 | 53037.94* | 3d7(4F)4s2 4F | 3.5 | 103652.93* | 3d8(3F)5p4G | 1.54 × 105 | −3.14 | 4.70 × 10−3 |
| 1975.577 | 50618.13* | 1.5 | 68156.42* | 3d7(4P)4s2 4P | 0.5 | 118774.55* | 3d8(3F4)4f[1] | 1.27 × 105 | −3.83 | 9.70 × 10−4 |
Notes. Energy levels marked with an asterisk indicate the level has an experimental value taken from Clear et al. (2022a, 2023), rounded to two decimal places, otherwise the level is the calculated eigenvalue. For transitions involving a calculated eigenvalue, wavelengths and wavenumbers should not be considered spectroscopically accurate. For transitions between purely experimental energy levels, denoted with an asterisk, the reader is directed to Clear et al. (2022a, 2023) for Ritz wavelengths and uncertainties. Wavelengths between 200 nm and 2 μm are given as air wavelengths and as vacuum wavelengths for all other regions. log(gf) and A-value uncertainties are estimated at 20% for strong lines with S > 2 and 40% for lines with strength between 0.02 ≤ S ≤ 2. Uncertainties are not given for transitions weaker than this. Full data are available as a machine readable table.
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