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Table 1

Final adopted parameters for PG 1034+001 and PG 0038+199. The last column shows solar abundance values.

PG 1034+001 PG 0038+199 Suna

Teff/K 115 000 125 000
log  g 7.0 7.0
H <0.012 0.02 0.74
He 0.99 0.97 0.25
C 2.3 × 10-4 < 1.0 × 10-4 2.4 × 10-3
N 7.0 × 10-3 1.0 × 10-2 6.9 × 10-4
O 1.0 × 10-5 1.0 × 10-4 5.7 × 10-3
Ne < 1.3 × 10-3 < 1.3 × 10-3 1.3 × 10-3
Si 5.0 × 10-4 1.0 × 10-3 6.6 × 10-4
P 2.9 × 10-6 1.0 × 10-5 5.8 × 10-6
S 5.0 × 10-5 1.0 × 10-4 3.1 × 10-4
Ar 1.0 × 10-4 7.3 × 10-5
Fe 1.3 × 10-3 2.6 × 10-3 1.3 × 10-3
Ni 1.0 × 10-4 <3.0 × 10-4 7.1 × 10-5

Notes. Abundances in mass fractions and surface gravity g in cm s-2.

(a)

Solar abundances from Asplund et al. (2009).

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