Table 3
Pulsation phases, number of visibility measurements (N), resulting uniform disk angular diameters, and reduced χ2.
| φ | N | θUD |
|
Baseline |
| [mas] | ||||
|
|
||||
| 0.300 | 2 | 1.705±0.035 | 0.9 | S1S2 |
| 0.543±0.009 | 4 | S1S2 | ||
| 0.666±0.006 | 3 | S1S2 | ||
| 0.821±0.012 | 3 | S1S2 | ||
|
|
||||
| 0.180±0.006 | 15 | 1.418±0.027 | 1.2 | E1E2 |
| 0.192±0.015 | 7 | 1.400±0.010 | 0.1 | E1E2 |
| 0.292±0.009 | 9 | 1.454±0.022 | 1.6 | E1E2 |
| 0.401±0.003 | 4 | 1.439±0.026 | 4.4 | E1E2 |
| 0.526±0.001 | 12 | 1.425±0.012 | 0.6 | E1E2 |
| 0.627±0.017 | 7 | 1.436±0.019 | 0.6 | E1E2 |
| 0.741±0.003 | 8 | 1.318±0.017 | 2.4 | E1E2 |
| 0.783±0.002 | 15 | 1.316±0.010 | 0.9 | E1E2 |
| 0.821±0.012 | 6 | 1.393±0.025 | 2.2 | E1E2 |
| 0.848±0.007 | 24 | 1.360±0.020 | 3.3 | E1E2 |
| 0.893±0.005 | 30 | 1.405±0.019 | 8.1 | E1E2 |
| 0.927±0.003 | 8 | 1.353±0.029 | 0.9 | E1E2 |
| 0.942±0.007 | 13 | 1.408±0.026 | 1.1 | E1E2 |
| 0.999±0.025 | 8 | 1.337±0.016 | 1.4 | E1E2 |
Notes. The baseline used is also indicated. The pulsation phases are calculated using the ephemeris from Kukarkin et al. (1971): T0 = 2 427 628.86 days and P = 5.3663 days. There is no error on the phase at 0.300 since the two measurements are from the same date but at different reference wavelengths. The S1S2 data were merged in order to derive a mean uniform disk angular diameter.
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