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Table 3
Summary of model atoms used in the NLTE calculations.
| Element | Ion | NLTE levels | Lines |
|
|
|||
| H | I | 5 | 10 |
| II | 1 | – | |
| He | I | 5 | 3 |
| II | 16 | 119 | |
| III | 1 | – | |
| C | IV | 54 | 295 |
| V | 41 | 95 | |
| VI | 55 | 288 | |
| VII | 1 | – | |
| N | V | 54 | 297 |
| VI | 36 | 164 | |
| VII | 1 | – | |
| O | V | 90 | 610 |
| VI | 54 | 291 | |
| VII | 1 | – | |
| Ne | V | 30 | 69 |
| VI | 25 | 73 | |
| VII | 103 | 761 | |
| VIII | 77 | 510 | |
| IX | 1 | – | |
| Si | IV | 16 | 44 |
| V | 15 | 20 | |
| VI | 20 | 36 | |
| VII | 61 | 138 | |
| VIII | 41 | 147 | |
| IX | 1 | – | |
| S | V | 10 | 8 |
| VI | 18 | 48 | |
| VII | 38 | 120 | |
| VIII | 24 | 24 | |
| IX | 1 | – | |
| Ca | VIII | 1 | – |
| IX | 15 | 23 | |
| X | 15 | 44 | |
| XI | 4 | 2 | |
| XII | 1 | – | |
| Fe | VI | (3165) 7 | (840 065) 25 |
| VII | (1195) 7 | (86 504) 24 | |
| VIII | (310) 7 | (8 724) 27 | |
| IX | (712) 7 | (36 843) 25 | |
| X | (761) 7 | (45 229) 28 | |
| XI | (546) 7 | (29 073) 28 | |
| XII | 1 | – | |
| Total: 10 | 43 | 975 | 4396 |
Notes. All elements except of iron were included in the line-blanketed models. For iron we used a statistical superlevel/superline approach in the subsequent NLTE level population calculations. The original number of levels and lines are given in brackets.
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