Table 2
List and properties of calibration stars selected with the SearchCal software provided by the Jean-Marie Mariotti Center (JMMC) (Bonneau et al. 2006, 2011).
| Calibrator HD | Number | Spectral type | Teff | log g | R | θUD (R band) |
| K | [cgs] | [mas] | ||||
|
|
||||||
| HD 214734 | C1 | A3IV | 8600 | 4.2 | 5.073 | 0.327 ± 0.023 |
| HD 213558 | C2 | A1V | 9500 | 4.1 | 3.770 | 0.458 ± 0.033 |
|
|
||||||
| HD 195725 | C3 | A7III | 8000 | 3.3 | 4.050 | 0.617 ± 0.044 |
| HD 182564 | C4 | A2IIIs | 9380 | 3.4 | 4.550 | 0.377 ± 0.027 |
| HD 211336 | C5 | F0IV | 7300 | 4.3 | 3.920 | 0.714 ± 0.051 |
| HD 214454 | C6 | A8IV | 7500 | 4.3 | 4.410 | 0.581 ± 0.042 |
| HD 3360 | C7 | B2IV | 20 900 | 3.9 | 3.740 | 0.284 ± 0.020 |
| HD 192907 | C8 | B9III | 10 500 | 3.4 | 4.410 | 0.346 ± 0.025 |
Notes. Teff is the effective temperature, g the gravitation acceleration, R the magnitude of the calibrator in the Johnson R filter, θUD the uniform disk angular diameter for the R filter of the Johnson photometric system. These parameters were adopted from Lafrasse et al. (2010) for all calibrators, except HD 195725 (C3) for which we used the SearchCal tool itself. C1 and C2 were used in this study to calibrate the δ Cep VEGA/CHARA data (see Fig. A.2), while C3 to C8 were used to test the robustness of the C1 and C2 calibrators (see Fig. A.1).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.