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Table A.4
Atomic model used in the stellar atmosphere calculations.
| Ion | Number of levels | Number of transitions | Ion | Number of levels | Number of transitions |
|---|---|---|---|---|---|
| H I | 22 | 231 | Mg III | 43 | 903 |
| H II | 1 | 0 | Mg IV | 17 | 136 |
| He I | 35 | 595 | Mg V | 0 | 0 |
| He II | 26 | 325 | Mg VII | 0 | 0 |
| He III | 1 | 0 | Si II | 1 | 0 |
| N II | 38 | 703 | Si III | 24 | 276 |
| N III | 36 | 630 | Si IV | 23 | 253 |
| N IV | 38 | 703 | Si V | 1 | 0 |
| N V | 20 | 190 | P IV | 12 | 66 |
| N VI | 14 | 91 | P V | 11 | 55 |
| C II | 32 | 496 | P VI | 1 | 0 |
| C III | 40 | 780 | G II(a) | 1 | 0 |
| C IV | 25 | 300 | G III(a) | 13 | 40 |
| C V | 29 | 406 | G IV(a) | 18 | 77 |
| C VI | 15 | 105 | G V(a) | 22 | 107 |
| O II | 37 | 666 | G VI(a) | 29 | 194 |
| O III | 33 | 528 | G VII(a) | 19 | 87 |
| O IV | 29 | 406 | G VIII(a) | 14 | 49 |
| O V | 36 | 630 | G IX(a) | 15 | 56 |
| O VI | 16 | 120 | G X(a) | 1 | 0 |
| O VII | 0 | 0 | G XI(a) | 0 | 0 |
| O VIII | 0 | 0 | G XII(a) | 0 | 0 |
| S III | 23 | 253 | G XIII(a) | 0 | 0 |
| S IV | 11 | 55 | G XIV(a) | 0 | 0 |
| S V | 10 | 45 | G XV(a) | 0 | 0 |
| S VI | 1 | 0 | G XVI(a) | 0 | 0 |
| Mg I | 1 | 0 | G XVII(a) | 0 | 0 |
| Mg II | 32 | 496 |
Notes. (a) G denotes a generic atom which incorporates the following iron group elements Fe, Sc, Ti, Cr, Mn, Co, and Ni. The corresponding ions are treated by means of a superlevel approach (for details see Gräfener et al. 2002).
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