Table 1.
Adopted atomic parameters.
| Ion | λ [Å] | χe [eV] | log(gf) | γrad | γStark | γWaals | σ | α |
|---|---|---|---|---|---|---|---|---|
| [O I] | 6300.304 | 0.000 | −9.717 (a) | 0.0 | 0.05 | 1.00 | ... | ... |
| 58Ni I | 6300.335 | 4.266 | −2.253 (b) | 2.63 | 0.054 | 1.82 | ... | ... |
| 60Ni I | 6300.355 | 4.266 | −2.663 (b) | 2.63 | 0.054 | 1.82 | ... | ... |
| Sc II | 6300.678 | 1.507 | −1.970 | 2.30 | 0.05 | 1.30 | ... | ...... |
| Fe I | 6301.501 | 3.654 | −0.718 (c) | ... | ... | ... | 834.4 | 0.243 |
| Fe I | 6302.494 | 3.686 | −1.25 | ... | ... | ... | 850.2 | 0.239 |
| Fe I | 6303.462 | 4.320 | −2.66 | 2.40 | 0.11 | 1.95 | ... | ... |
Notes. χ is the excitation potential. γrad, γStark and γWaals are the radiative, the Stark, and the van der Waals damping parameters (units 108 rad s−1). The log(gf) are taken from: (a) Storey & Zeippen (2000), (b) Johansson et al. (2003), (c)VALD database. In the case of the Fe I lines, the γrad is introduced by NICOLE as calculated in Gray (1976). The log(gf) values for the Sc II and Fe I 6302.5 Å lines have been revised in this paper.
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