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Table 1
Atomic data of spectral lines used for the MDI inversion.
| Ion | λ (Å) | Elo (eV) | log gf |
|
|
|||
| Fe i | 4267.826 | 3.111 | − 1.174a |
| Fe i | 4938.814 | 2.875 | − 1.077 |
| Fe i | 5198.711 | 2.223 | − 2.056 |
| Fe i | 5217.389 | 3.211 | − 1.070 |
| Fe i | 5434.524 | 1.011 | − 2.122 |
| Fe i | 5445.042 | 4.386 | − 0.020a |
| Fe i | 6008.556 | 3.884 | − 0.986 |
| Fe i | 6024.058 | 4.548 | − 0.120a |
| Fe i | 6137.692 | 2.588 | − 1.403 |
| Fe i | 6336.824 | 3.686 | − 0.856 |
| Fe i | 6393.600 | 2.433 | − 1.432 |
| Fe i | 6419.949 | 4.733 | − 0.240 |
| Fe ii | 6432.680 | 2.891 | − 3.687 |
|
|
|||
| Nd iii | 5677.179 | 0.631 | − 1.450b |
| Nd iii | 5802.532 | 0.296 | − 1.710b |
| Nd iii | 5851.542 | 0.461 | − 1.516b |
|
|
|||
| Na i | 5889.951 | 0.000 | 0.108 |
Notes. The columns give the ion, central wavelength λ, excitation potential of the lower atomic level Elo and the oscillator strength log gf. (a)log gf value adjusted automatically in the inversion procedure. 
log gf corrections added for NLTE effects.
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