Detail of the HST/STIS spectrum of KPD 0005+5106 (bottom, thin gray line) and the FUSE spectrum (top, thin gray line) comprising a Si vii triplet. Overplotted on each are two models (thick solid and dashed lines) with different Si abundances as indicated in the legend. Other model parameters: Teff = 200 000 K, log g= 6.7, C = 9.3 × 10-3, Ne = 3.9 × 10-3 (mass fractions). Observations and models were convolved with 0.02 Å boxcars and 0.036 Å Gaussians, respectively.
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