Table 2.
Mean parameters derived for the calibrating Cepheids.
| Name | 〈Teff〉 ± σ (K) | 〈log g〉 ± σ | 〈υt〉 ± σ (km s−1) | [Fe I/H] ± σ | [Fe II/H] ± σ | [Fe/H] ± σ (std) | Nspec |
|---|---|---|---|---|---|---|---|
| V340 Ara | 5293 ± 42 | 1.14 ± 0.11 | 4.77 ± 0.19 | 0.24 ± 0.07 | 0.22 ± 0.05 | 0.23 ± 0.04 (0.07) | 7 |
| η Aql | 5479 ± 39 | 1.11 ± 0.09 | 3.43 ± 0.15 | 0.26 ± 0.05 | 0.23 ± 0.03 | 0.24 ± 0.03 (0.09) | 11 |
| S Cru | 6014 ± 21 | 1.64 ± 0.08 | 3.08 ± 0.14 | 0.09 ± 0.03 | 0.08 ± 0.04 | 0.09 ± 0.03 (0.04) | 13 |
| β Dor | 5557 ± 13 | 1.35 ± 0.04 | 3.78 ± 0.07 | −0.04 ± 0.02 | −0.02 ± 0.02 | −0.03 ± 0.01 (0.05) | 46 |
| ζ Gem | 5494 ± 7 | 1.12 ± 0.03 | 3.22 ± 0.04 | 0.15 ± 0.01 | 0.17 ± 0.01 | 0.16 ± 0.01 (0.05) | 128 |
| Y Oph | 5612 ± 33 | 0.99 ± 0.11 | 3.22 ± 0.18 | 0.06 ± 0.05 | 0.09 ± 0.06 | 0.08 ± 0.04 (0.05) | 8 |
| RS Pup | 5381 ± 27 | 0.84 ± 0.08 | 4.66 ± 0.13 | 0.13 ± 0.04 | 0.15 ± 0.03 | 0.14 ± 0.02 (0.07) | 14 |
| UZ Sct | 5038 ± 36 | 1.24 ± 0.11 | 4.86 ± 0.18 | 0.13 ± 0.07 | 0.07 ± 0.09 | 0.11 ± 0.05 (0.09) | 8 |
| AV Sgr | 5228 ± 38 | 1.18 ± 0.11 | 4.86 ± 0.18 | 0.25 ± 0.07 | 0.32 ± 0.03 | 0.31 ± 0.02 (0.08) | 8 |
| VY Sgr | 5340 ± 35 | 0.98 ± 0.09 | 4.59 ± 0.16 | 0.21 ± 0.06 | 0.27 ± 0.04 | 0.25 ± 0.03 (0.08) | 10 |
| XX Sgr | 5843 ± 41 | 1.30 ± 0.13 | 2.98 ± 0.22 | 0.09 ± 0.06 | 0.03 ± 0.06 | 0.06 ± 0.04 (0.02) | 5 |
| Y Sgr | 5924 ± 26 | 1.75 ± 0.06 | 4.11 ± 0.11 | 0.07 ± 0.03 | −0.02 ± 0.02 | 0.00 ± 0.01 (0.06) | 22 |
| R TrA | 6039 ± 25 | 1.97 ± 0.08 | 4.01 ± 0.13 | 0.02 ± 0.03 | −0.04 ± 0.03 | −0.01 ± 0.02 (0.03) | 15 |
| RZ Vel | 5479 ± 29 | 1.23 ± 0.09 | 4.62 ± 0.14 | 0.09 ± 0.04 | 0.08 ± 0.04 | 0.08 ± 0.03 (0.06) | 12 |
Notes. From left to right the columns give the name, effective temperature, surface gravity, microturbulent velocity, iron abundances, and number of spectra used to compute the mean values. These are the weighted mean and its uncertainty computed from the values in Table 4. The standard deviation of the mean computed using individual abundances of both Fe I and Fe II is also shown.
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