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Table B.1

Atoms and levels considered in the models.

Elem. ion levels lines Elem. ion levels lines
H I 30 435 Cl III 1 0
H II 1 0 Cl IV 24 276
He I 45 990 Cl V 18 153
He II 30 435 Cl VI 23 253
He III 1 0 Cl VII 1 0
N I 10 45 Ar I 75 2775
N II 38 703 Ar II 99 4851
N III 85 3570 Ar III 30 435
N IV 38 703 Ar IV 13 78
N V 20 190 Ar V 10 45
N VI 14 91 Ar VI 9 36
C I 15 105 Ar VII 20 190
C II 32 496 Ar VIII 1 0
C III 40 780 K I 62 1891
C IV 25 300 K II 20 190
C V 29 406 K III 20 190
C VI 1 0 K IV 23 253
O I 13 78 K V 19 171
O II 37 666 K VI 1 0
O III 33 528 Ca I 20 190
O IV 29 406 Ca II 20 190
O V 54 1431 Ca III 14 91
O VI 35 595 Ca IV 24 276
O VII 15 105 Ca V 15 105
S II 32 496 Ca VI 15 105
S III 23 253 Ca VII 20 190
S IV 25 300 Ca VIII 1 0
S V 20 190 Ne I 30 435
S VI 22 231 Ne II 42 861
Mg I 1 0 Ne III 18 153
Mg II 32 496 Ne IV 35 595
Mg III 43 903 Ne V 20 190
Mg IV 17 136 Ne VI 20 190
Mg V 20 190 Ne VII 1 0
Si I 20 190 Fe I 13 40
Si II 20 190 Fe II 14 48
Si III 24 276 Fe III 13 40
Si IV 55 1485 Fe IV 18 77
Si V 52 1326 Fe V 22 107
P IV 12 66 Fe VI 29 194
P V 11 55 Fe VII 19 87
P VI 1 0 Fe VIII 14 49
Al I 1 0 Fe IX 15 56
Al II 10 45 Fe X 1 0
Al III 10 45
Al IV 1 0

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