Table 12
Determination of the scale factor to adjust the related fiducial primary standard star model to the flux level of the candidate primary standard.
| Primary candidate | Primary standard | Kmag ratio | f100 ratio | Scale factor | % Scale uncert. | % Abs. uncert. |
|---|---|---|---|---|---|---|
| α Ari | α Boo | 1.11 ± 0.04 × 10−1 | 1.09 ± 0.11 × 10−1 | 1.11 ± 0.01 × 10−1 | 0.9 | 5.2 |
| 42 Dra | α Boo | 1.03 ± 0.06 × 10−2 | 9.73 ± 1.00 × 10−3 | 1.01 ± 0.03 × 10−2 | 3.0 | 5.9 |
| HD 152222 | α Boo | 2.07 ± 0.46 × 10−3 | 2.77 ± 0.27 × 10−3 | 2.59 ± 0.31 × 10−3 | 12.0 | 13.0 |
| HD 1593301 | α Boo | 4.58 ± 0.92 × 10−3 | 4.13 ± 0.46 × 10−3 | 4.22 ± 0.18 × 10−3 | 4.3 | 6.7 |
| ε Lep | α Tau | 8.49 ± 0.31 × 10−2 | 8.22 ± 0.82 × 10−2 | 8.46 ± 0.09 × 10−2 | 1.1 | 5.2 |
| ε Lep | γ Dra | 3.56 ± 0.13 × 10−1 | 3.54 ± 0.35 × 10−1 | 3.56 ± 0.007 × 10−1 | 0.2 | 5.1 |
| HD 41047 | α Tau | 1.37 ± 0.29 × 10−2 | 1.40 ± 0.14 × 10−2 | 1.39 ± 0.01 × 10−2 | 0.7 | 5.1 |
| HD 41047 | γ Dra | 5.73 ± 1.21 × 10−2 | 6.03 ± 0.61 × 10−2 | 5.97 ± 0.12 × 10−2 | 2.0 | 5.5 |
| θ Umi1 | α Tau | 2.07 ± 0.12 × 10−2 | 2.08 ± 0.23 × 10−2 | 2.07 ± 0.004 × 10−2 | 0.2 | 5.1 |
| θ Umi1 | γ Dra | 8.71 ± 0.48 × 10−2 | 8.98 ± 1.00 × 10−2 | 8.76 ± 0.11 × 10−2 | 1.3 | 5.3 |
| HD 1382651 | α Tau | 7.88 ± 0.36 × 10−3 | 8.18 ± 0.83 × 10−3 | 7.93 ± 0.11 × 10−3 | 1.4 | 5.3 |
| HD 1382651 | γ Dra | 3.31 ± 0.15 × 10−2 | 3.52 ± 0.36 × 10−2 | 3.34 ± 0.07 × 10−2 | 2.2 | 5.6 |
| ω Cap | β And | 1.48 ± 0.06 × 10−1 | 1.51 ± 0.15 × 10−1 | 1.48 ± 0.01 × 10−1 | 0.7 | 5.1 |
Notes. The last two columnslist the uncertainty percentage of the scale factor and the absolute uncertainty of the scaled model approximation, the latter being the Gaussian error propagation of the scale uncertainty, 1% uncertainty in the stellar parameters and 5% uncertainty of the models. (1) Star is a proven reliable standard only up to 100 μm due to background confusion.
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