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Table 3
Statistics of our model atoms.
| Ion | NLTE levels | Lines | Sample lines | |
|
|
||||
| H | i | 5 | 10 | |
| ii | 1 | − | ||
| He | i | 29 | 69 | |
| ii | 20 | 190 | ||
| iii | 1 | − | ||
| C | iii | 58 | 329 | |
| iv | 54 | 295 | ||
| v | 1 | 0 | ||
| N | iii | 34 | 129 | |
| iv | 90 | 546 | ||
| v | 54 | 297 | ||
| vi | 1 | 0 | ||
| O | iii | 72 | 322 | |
| iv | 38 | 173 | ||
| v | 53 | 255 | ||
| vi | 54 | 291 | ||
| vii | 1 | 0 | ||
| Ne | ii | 14 | 19 | |
| iii | 14 | 17 | ||
| iv | 14 | 24 | ||
| v | 14 | 18 | ||
| vi | 1 | 0 | ||
| Si | iii | 17 | 28 | |
| iv | 16 | 44 | ||
| v | 25 | 59 | ||
| vi | 1 | 0 | ||
| P | iv | 15 | 9 | |
| v | 18 | 12 | ||
| vi | 1 | 0 | ||
| S | iv | 20 | 25 | |
| v | 23 | 33 | ||
| vi | 30 | 42 | ||
| vii | 1 | 0 | ||
| Fe | iv | 5 | 12 | 3 102 371 |
| v | 7 | 25 | 3 266 247 | |
| vi | 7 | 25 | 991 935 | |
| vii | 1 | 0 | ||
| Ni | iv | 5 | 14 | 2 512 561 |
| v | 7 | 25 | 2 766 664 | |
| vi | 7 | 22 | 7 408 657 | |
| vii | 1 | 0 | ||
|
|
||||
| Total | 467 | 1022 | 20 048 435 | |
Notes. For iron and nickel, we used a statistical superline/superlevel approach (Rauch & Deetjen 2003) in the subsequent NLTE level population calculations. The original number of the so-called “sample lines” from Kurucz’s line list, which are combined to super-lines, is also given.
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