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Table 2

Statistics of H – Ar model atoms used in our calculations.

Levels Levels


ion NLTE LTE lines ion NLTE LTE lines

H I 12 4 66 Na VI 43 10 130
H II 1 0  −  Na VII 1 0 0
He I 5 98 3 Mg III 1 34 0
He II 16 16 120 Mg IV 31 0 93
He III 1 0  −  Mg V 15 37 18
C III 6 61 12 Mg VI 1 0 0
C IV 54 4 295 Al III 1 6 0
C V 1 0 0 Al IV 15 2 0
N III 1 65 0 Al V 1 16 0
N IV 16 78 30 Al VI 14 24 16
N V 54 8 297 Al VII 1 0 0
N VI 1 0 0 Si III 3 31 1
O III 3 69 0 Si IV 16 7 44
O IV 18 67 39 Si V 25 0 59
O V 90 36 610 Si VI 1 0 0
O VI 54 8 291 P III 1 9 0
O VII 1 0 0 P IV 15 36 9
F III 1 6 0 P V 18 7 12
F IV 1 10 0 P VI 1 0 0
F V 15 91 31 S IV 6 94 4
F VI 12 115 16 S V 21 89 37
F VII 1 0 0 S VI 18 19 48
Ne II 1 33 0 S VII 1 0 0
Ne III 3 43 0 Ar IV 1 349 0
Ne IV 3 37 0 Ar V 32 329 38
Ne V 20 74 35 Ar VI 16 168 21
Ne VI 1 0 0 Ar VII 40 112 130
Na III 1 186 0 Ar VIII 1 0 0
Na IV 1 237 0
Na V 8 42 9 total 741 2837 2514

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