Table 2
Main parameters of our four targets and their calibrators.
| Star | Type | H | θLD | Ref. |
|
|
||||
| Fomalhaut | A3V | 1.03 | 2.223 ± 0.022 | 1 |
| HD 209688 | K3III | 1.58 | 2.71 ± 0.030 | 2 |
| HD 219784 | G8III | 2.01 | 2.13 ± 0.025 | 2 |
|
|
||||
| tau Cet | G8V | 1.72 | 2.015 ± 0.011 | 3 |
| HD 8705 | K2III | 2.17 | 2.06 ± 0.040 | 2 |
| HD 14376 | K5III | 2.92 | 1.457 ± 0.019 | 4 |
| HD 15694 | K3III | 2.61 | 1.766 ± 0.023 | 4 |
| HD 16526 | K4III | 3.12 | 1.389 ± 0.017 | 4 |
|
|
||||
| del Aqr | A3V | 3.14 | 0.825 ± 0.012 | 5a |
| HD 221745 | K4III | 3.06 | 1.426 ± 0.019 | 4 |
| gam Tuc | F4V | 3.00 | 0.998 ± 0.070 | 6 |
|
|
||||
| Regulus | B7V | 1.57 | 1.47 ± 0.20 | 7b |
| HD 45018 | K5III | 2.00 | 2.50 ± 0.041 | 2 |
| HD 83425 | K3III | 1.68 | 2.64 ± 0.028 | 2 |
| HD 82381 | K2III | 2.07 | 2.16 ± 0.026 | 2 |
Notes.
Diameter based on surface-brightness relationships, using magnitudes V = 3.269 ± 0.01 and K = 3.078 ± 0.02 (Bouchet et al. 1991).
References. (1) Absil et al. (2009); (2) Bordé et al. (2002); (3) Di Folco et al. (2007); (4) Mérand et al. (2005); (5) Kervella et al. (2004); (6) Lafrasse et al. (2010); (7) McAlister et al. (2005).
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