Table 3
Log of the interferometric observations together with the relative astrometric position of the second component, the flux ratio in the H band and the angular diameter of the primary star.
| MJD | Date | Telescope | Spectral | d.o.f. | Δx | Δy | f | θ UD |
| configuration | setup | (mas) | (mas) | (%) | (mas) | |||
|
|
||||||||
| 56 937.243 | 2014-Oct.-06 | K0-A1-G1-J3 | 3 channels | 1349 | 2.419 ± 0.008 | 0.950 ± 0.003 | 31.7 ± 0.5 | 0.391 ± 0.021 |
| 56 939.234 | 2014-Oct.-08 | K0-A1-G1-J3 | 3 channels | 1199 | 2.135 ± 0.014 | 0.787 ± 0.004 | 31.5 ± 0.5 | 0.414 ± 0.049 |
| 56 962.235 | 2014-Oct.-31 | K0-A1-G1-J3 | 3 channels | 1199 | − 2.346 ± 0.005 | –1.155 ± 0.003 | 31.3 ± 0.6 | 0.405 ± 0.014 |
| 56 979.245 | 2014-Nov.-17 | K0-A1-G1-I1 | 3 channels | 1199 | − 1.801 ± 0.004 | –0.615 ± 0.006 | 31.7 ± 0.4 | 0.403 |
| 56 995.141 | 2014-Dec.-03 | K0-A1-G1-I1 | 6 channels | 149 | 1.547 ± 0.013 | 0.888 ± 0.021 | 32.3 ± 0.5 | 0.403 |
| 56 996.095 | 2014-Dec.-04 | K0-A1-G1-I1 | 6 channels | 149 | 1.712 ± 0.008 | 0.962 ± 0.008 | 31.4 ± 0.3 | 0.403 |
| 57 009.062 | 2014-Dec.-17 | K0-A1-G1-I1 | 6 channels | 2699 | 2.689 ± 0.004 | 1.133 ± 0.007 | 32.2 ± 0.5 | 0.403 |
| 57 011.058 | 2014-Dec.-19 | K0-A1-G1-I1 | 6 channels | 2699 | 2.568 ± 0.005 | 1.045 ± 0.008 | 32.2 ± 0.5 | 0.403 |
| 57 032.088 | 2015-Jan.-09 | K0-A1-G1-I1 | 6 channels | 2999 | –1.382 ± 0.004 | –0.830 ± 0.003 | 32.0 ± 0.5 | 0.403 |
| 57 039.099 | 2015-Jan.-16 | K0-A1-G1-I1 | 6 channels | 2399 | –2.447 ± 0.003 | –1.194 ± 0.005 | 31.8 ± 0.5 | 0.403 |
| 57 048.078 | 2015-Jan.-25 | K0-A1-G1-I1 | 6 channels | 2398 | –2.618 ± 0.002 | –1.096 ± 0.003 | 31.8 ± 0.5 | 0.403 |
Notes. The listed angular diameter without uncertainty has been fixed to the average value of the three first observations because of a lack of angular resolution with the quadruplet K0-A1-G1-I1. We used the following calibrators: HD 20804: θUD = 0.405 ± 0.029 mas, HD 21208: θUD = 0.480 ± 0.034 mas, HD 21220: θUD = 0.416 ± 0.030 mas, HD 17926: θUD = 0.394 ± 0.038 mas, and HD 21882: θUD = 0.333 ± 0.023 mas.
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