Table 1
VEGA observations of ε Aur in medium resolution for squared visibility measurement in the continuum near Hα.
| RJD | Phase | Baseline | PA | V 2 | UD | |
| (m) | (°) | (mas) | ||||
|
|
||||||
| 55 140.793 | −0.026 | 55.35 | −95.0 | 0.287 ± 0.013 | 1.66 ± 0.02 | |
| 55 140.836 | −0.026 | 33.56 | 6.8 | 0.623 ± 0.014 | 1.75 ± 0.01 | |
| 55 141.024 | −0.026 | 32.01 | −29.8 | 0.519 ± 0.012 | 2.14 ± 0.02 | |
| 55 152.685 | −0.025 | 32.06 | 29.5 | 0.663 ± 0.016 | 1.74 ± 0.01 | |
| 55 152.825 | −0.025 | 33.60 | 2.7 | 0.479 ± 0.012 | 2.18 ± 0.02 | |
| 55 153.036 | −0.025 | 30.48 | −36.9 | 0.573 ± 0.012 | 2.11 ± 0.02 | |
|
|
||||||
| 55 481.003 | 0.008 | 33.37 | −14.1 | 0.865 ± 0.017 | 1.00 ± 0.01 | |
| 55 537.740 | 0.014 | 32.51 | 9.3 | 0.732 ± 0.020 | 1.44 ± 0.02 | |
|
|
||||||
| 55 824.962 | 0.043 | 33.56 | 6.6 | 0.555 ± 0.009 | 1.96 ± 0.01 | |
| 55 848.913 | 0.045 | 33.60 | 3.5 | 0.489 ± 0.009 | 2.13 ± 0.01 | |
| 55 849.046 | 0.045 | 32.84 | −22.9 | 0.604 ± 0.019 | 1.85 ± 0.02 | |
| 55 849.811 | 0.045 | 32.82 | 23.0 | 0.512 ± 0.011 | 2.11 ± 0.01 | |
| 55 881.063 | 0.048 | 29.53 | −39.9 | 0.705 ± 0.016 | 1.74 ± 0.02 | |
| 55 881.907 | 0.048 | 33.40 | −13.4 | 0.550 ± 0.015 | 1.98 ± 0.02 | |
| 55 882.028 | 0.048 | 31.03 | −34.8 | 0.685 ± 0.016 | 1.71 ± 0.02 | |
| 55 887.806 | 0.049 | 33.60 | 3.7 | 0.611 ± 0.017 | 1.80 ± 0.02 | |
Notes. Column 1 gives the reduced heliocentric Julian date (RJD); Col. 2 the eclipsing phase for ephemeris (Eq. (1)); Col. 3 the length of the projected baseline (in meters); Col. 4 the position angle of the baseline (in degrees); Col. 5 gives the calibrated squared visibility and Col. 6 the uniform disk equivalent angular diameter in mas. The horizontal lines separate the data as a function of year (2009, 2010, 2011).
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