Table 1
Results of non-LTE line profile fitting with various model atmospheres: A(O), SH-values, and reduced χ2 of the best fit for two different observed spectra (WCLC and Pereira 2009); the difference between A(O) derived from the two different spectra is given in Col. (4).
| A(O) | Δ A(O) | S H |
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| Data set: | WCLC | Pereira | WCLC | Pereira | WCLC | Pereira | |
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| λ, nm | 3D model atmosphere | ||||||
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| 777.2 | 8.748 ± 0.002 | 8.759 ± 0.004 | –0.011 | 1.44 ± 0.03 | 1.64 ± 0.07 | 1.654 | 1.794 |
| 777.4 | 8.735 ± 0.002 | 8.769 ± 0.004 | –0.033 | 1.22 ± 0.03 | 1.67 ± 0.07 | 1.073 | 0.853 |
| 777.5 | 8.756 ± 0.002 | 8.771 ± 0.003 | –0.015 | 1.58 ± 0.04 | 1.85 ± 0.07 | 1.556 | 1.157 |
| Mean | 8.747 ± 0.010 | 8.766 ± 0.006 | –0.019 | 1.41 ± 0.19 | 1.72 ± 0.12 | – | – |
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| λ, nm | ⟨3D⟩ model atmosphere, ξmic = 1.0 km s-1 | ||||||
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| 777.2 | 8.591 | 8.641 ± 0.011 | –0.050 | 0.00 | 0.22 ± 0.05 | 6.163 | 7.010 |
| 777.4 | 8.603 | 8.609 | –0.006 | 0.00 | 0.00 | 3.985 | 3.522 |
| 777.5 | 8.614 | 8.623 ± 0.010 | –0.009 | 0.00 | 0.03 ± 0.05 | 2.718 | 2.358 |
| Mean | 8.603 ± 0.011 | 8.624 ± 0.016 | –0.021 | – | 0.08 ± 0.12 | – | – |
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| λ, nm | HM model atmosphere, ξmic = 0.8 km s-1 | ||||||
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| 777.2 | 8.671 ± 0.004 | 8.673 ± 0.008 | –0.002 | 0.44 ± 0.03 | 0.46 ± 0.06 | 4.409 | 4.387 |
| 777.4 | 8.680 ± 0.004 | 8.713 ± 0.007 | –0.033 | 0.43 ± 0.03 | 0.66 ± 0.06 | 3.042 | 2.322 |
| 777.5 | 8.747 ± 0.002 | 8.759 ± 0.005 | –0.012 | 1.02 ± 0.03 | 1.18 ± 0.07 | 2.497 | 2.006 |
| Mean | 8.699 ± 0.041 | 8.715 ± 0.043 | –0.016 | 0.63 ± 0.34 | 0.76 ± 0.37 | – | – |
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| λ, nm | HM model atmosphere, ξmic = 1.2 km s-1 | ||||||
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| 777.2 | 8.635 ± 0.005 | 8.638 ± 0.010 | –0.003 | 0.38 ± 0.03 | 0.40 ± 0.06 | 4.935 | 4.998 |
| 777.4 | 8.644 ± 0.005 | 8.671 ± 0.007 | –0.027 | 0.34 ± 0.03 | 0.49 ± 0.06 | 3.349 | 2.652 |
| 777.5 | 8.715 ± 0.002 | 8.727 ± 0.005 | –0.012 | 0.86 ± 0.03 | 1.00 ± 0.07 | 2.674 | 2.189 |
| Mean | 8.664 ± 0.044 | 8.679 ± 0.045 | –0.015 | 0.53 ± 0.29 | 0.63 ± 0.32 | – | – |
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| λ, nm | LHD model atmosphere, αMLT = 1.0, ξmic = 0.8 km s-1 | ||||||
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| 777.2 | 8.608 | 8.607 | 0.001 | 0.0 | 0.0 | 12.477 | 14.021 |
| 777.4 | 8.616 | 8.620 | –0.004 | 0.0 | 0.0 | 8.661 | 8.090 |
| 777.5 | 8.623 | 8.625 | –0.002 | 0.0 | 0.0 | 4.973 | 4.689 |
| Mean | 8.616 ± 0.008 | 8.617 ± 0.010 | –0.001 | – | – | – | – |
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| λ, nm | LHD model atmosphere, αMLT = 1.0, ξmic = 1.2 km s-1 | ||||||
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| 777.2 | 8.581 | 8.580 | 0.001 | 0.0 | 0.0 | 14.064 | 15.881 |
| 777.4 | 8.593 | 8.597 | –0.004 | 0.0 | 0.0 | 9.737 | 9.264 |
| 777.5 | 8.604 | 8.606 | –0.002 | 0.0 | 0.0 | 5.548 | 5.310 |
| Mean | 8.593 ± 0.011 | 8.594 ± 0.013 | –0.001 | – | – | – | – |
Notes. For the individual triplet components, we give the formal fitting errors of A(O) and SH (only if SH> 0), while the errors of the mean values correspond to the standard deviation of the individual lines.
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