Table 3
Results of non-LTE EW 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 | 8.763 ± 0.018 | 8.765 ± 0.014 | –0.002 | 1.63 ± 0.35 | 1.67 ± 0.25 | 0.831 | 0.500 |
| 777.4 | 8.743 ± 0.021 | 8.772 ± 0.013 | –0.029 | 1.28 ± 0.33 | 1.69 ± 0.25 | 0.448 | 0.457 |
| 777.5 | 8.757 ± 0.017 | 8.776 ± 0.010 | –0.019 | 1.56 ± 0.36 | 1.96 ± 0.26 | 0.235 | 0.401 |
| Mean | 8.754 ± 0.010 | 8.771 ± 0.006 | –0.017 | 1.49 ± 0.19 | 1.77 ± 0.17 | – | – |
|
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| λ, nm | HM model atmosphere, ξmic = 0.8 km s-1 | ||||||
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| 777.2 | 8.699 ± 0.030 | 8.677 ± 0.031 | 0.022 | 0.55 ± 0.25 | 0.38 ± 0.16 | 2.135 | 0.989 |
| 777.4 | 8.689 ± 0.031 | 8.705 ± 0.022 | –0.016 | 0.42 ± 0.22 | 0.49 ± 0.17 | 1.414 | 0.477 |
| 777.5 | 8.731 ± 0.022 | 8.748 ± 0.014 | –0.017 | 0.73 ± 0.26 | 0.90 ± 0.19 | 0.371 | 0.159 |
| Mean | 8.706 ± 0.022 | 8.710 ± 0.035 | –0.004 | 0.57 ± 0.16 | 0.59 ± 0.28 | – | – |
|
|
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| λ, nm | HM model atmosphere, ξmic = 1.2 km s-1 | ||||||
|
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| 777.2 | 8.670 ± 0.044 | 8.650 ± 0.026 | 0.020 | 0.50 ± 0.21 | 0.36 ± 0.08 | 2.330 | 1.371 |
| 777.4 | 8.660 ± 0.030 | 8.674 ± 0.026 | –0.014 | 0.37 ± 0.16 | 0.42 ± 0.16 | 1.578 | 0.695 |
| 777.5 | 8.705 ± 0.023 | 8.721 ± 0.015 | –0.016 | 0.65 ± 0.25 | 0.80 ± 0.18 | 0.420 | 0.208 |
| Mean | 8.678 ± 0.024 | 8.682 ± 0.036 | –0.004 | 0.51 ± 0.14 | 0.52 ± 0.24 | – | – |
Notes. Results from the ⟨3D⟩ and LHD model atmospheres are excluded because no minimum in χ2 is found in the range SH≥0.
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