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Table 3
Model atoms included in our calculations.
| Species | # Full levels | # Super levels | # Of transitions | ||
|
|
|||||
| H i | 30 | 30 | 435 | ||
| He i | 59 | 59 | 592 | ||
| He ii | 5 | 5 | 10 | ||
| C ii | 80 | 45 | 648 | ||
| C iii | 38 | 22 | 149 | ||
| C iv* | 8 | 5 | 22 | ||
| N i | 63 | 25 | 344 | ||
| N ii | 179 | 86 | 1936 | ||
| N iii | 20 | 11 | 61 | ||
| O i | 75 | 23 | 450 | ||
| O ii | 102 | 46 | 992 | ||
| Na i | 44 | 18 | 345 | ||
| Mg ii | 50 | 37 | 597 | ||
| Al ii | 20 | 12 | 41 | ||
| Al iii | 45 | 17 | 362 | ||
| Si ii | 72 | 35 | 491 | ||
| Si iii | 83 | 47 | 532 | ||
| Si iv | 28 | 17 | 129 | ||
| S ii | 85 | 26 | 745 | ||
| S iii | 63 | 31 | 331 | ||
| Ca ii | 32 | 25 | 157 | ||
| Cr iii | 209 | 36 | 2444 | ||
| Cr iv | 242 | 30 | 4732 | ||
| Fe ii | 709 | 233 | 18 011 | ||
| Fe iii | 812 | 87 | 21 383 | ||
| Fe iv | 417 | 62 | 8353 | ||
| Ni ii | 254 | 33 | 3354 | ||
| Ni iii | 336 | 34 | 5181 | ||
| Ni iv | 294 | 56 | 4174 | ||
|
|
|||||
| Total | 4160 | 1137 | 72 827 | ||
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