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Table 2

Number of non-LTE levels and lines of model ions used for line formation calculations of metals.

III IV V VI VII VIII

C 6, 4 54, 279
N 6, 4 54, 297
O 83, 637 105, 671 54, 280
F 1, 0 16, 32 18, 36 14, 28
Ne 92, 687 103, 761 77, 510
Na 49, 39 52, 229 65, 301 29, 80
Mg 31,93 52, 175 26, 55 46, 147
Al 1, 0 15, 20 30, 87 43, 126 43, 160
Si 30, 102 25, 59 45, 193 61, 138
P 21, 9 18, 12
S 39, 107 25, 48 38, 120
Cl 34,107 20, 34 13, 10 36, 94 25, 64
Ar 8, 8 40, 130 41, 199

Notes. First and second number of each table entry denote the number of levels and lines, respectively. Not listed for each element is the highest considered ionisation stage, which comprises its ground state only. See text for the treatment of iron.

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