Table 3
Results of the procedure for three Galactic stars degraded to R = 1000 and SNR = 100, 50.
| HD 209975 | HD 38771 | HD 14818 | ||||||||||
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| R04 | Output | Output+Hα | SNR = 50 | U04 | Output | Output+Hα | SNR = 50 | U04 | Output | Output+Hα | SNR = 50 | |
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| Teff (kK) | 32.0 | 32.7 ± 1.0 | 32.3 ± 1.5 | 32.0 ± 3.3 | 26.5 | 27.2 ± 1.6 | 26.9 ± 2.0 | 25.4 ± 3.3 | 20.1 | 18.3 ± 0.7 | 18.9 ± 1.3 | 18.9 ± 1.9 |
| log g (dex) | 3.20 | 3.36 ± 0.09 | 3.32 ± 0.08 | 3.29 ± 0.20 | 2.90 | 3.11 ± 0.10 | 3.11 ± 0.11 | 3.00 ± 0.20 | 2.40 | 2.51 ± 0.11 | 2.45 ± 0.14 | 2.40 ± 0.18 |
| ξ (km s-1) | 10.0∗ | 14.7 ± 5.3 | 14.4 ± 5.0 | 13.9 ± 7.5 | 18.0 | 14.5 ± 4.6 | 14.1 ± 4.3 | 11.3 ± 6.0 | 17.0 | 15.9 ± 3.9 | 13.9 ± 3.7 | 11.9 ± 5.9 |
| He/H | 0.10∗ | 0.11 ± 0.04 | 0.11 ± 0.04 | 0.12 ± 0.05 | 0.10 | 0.15 ± 0.04 | 0.16 ± 0.04 | 0.14 ± 0.05 | 0.15 | 0.11 ± 0.04 | 0.14 ± 0.05 | 0.12 ± 0.05 |
| Si/Si⊙ | 1.00∗ | 0.85 ± 0.30 | 1.08 ± 0.24 | 0.83 ± 0.28 | 1.00∗ | 0.91 ± 0.29 | 0.95 ± 0.26 | 0.81 ± 0.27 | 1.00∗ | 0.87 ± 0.30 | 0.87 ± 0.29 | 0.76 ± 0.27 |
| log Q | −12.67 | −12.69 ± 0.38 | −12.45 ± 0.20 | −12.53 ± 0.25 | −12.67 | −13.01 ± 0.29 | −12.93 ± 0.25 | −13.11 ± 0.32 | −13.22 | −13.03 ± 0.20 | −13.15 ± 0.20 | −13.18 ± 0.11 |
Notes. The results, summarized in this Table, with the errors (“Output”) are compared with analyses performed (though with different observational data) by Repolust et al. (2004) (R04) and Urbaneja (2004) (U04). The column “Output+Hα” gives the values returned with the incorporation of Hα. The SNR = 50 case considers Hα. The parameters marked with “*” were kept fixed.
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