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Table A.1.
Technical overview of the PIONIER observations of PDS 27 and PDS 37 over two nights in March 2015.
| Source | MJD | Baseline | τcoh | Seeing | V2 | Closure Phase |
|---|---|---|---|---|---|---|
| (m) | (ms) | (arcsec) | (°) | |||
| PDS 27 | 57083.13889 | 44.0 | 6.7 | 0.83 | 0.35 ± 0.02 | |
| 45.2 | 0.48 ± 0.02 | |||||
| 55.3 | 0.50 ± 0.03 | |||||
| 56.1 | 0.55 ± 0.02 | |||||
| 98.7 | 0.19 ± 0.01 | −2.4 ± 0.9 | ||||
| 100.4 | 0.32 ± 0.02 | −0.9 ± 1.8 | ||||
| 57084.13284 | 45.3 | 5 | 0.93 | 0.27 ± 0.01 | ||
| 55.7 | 0.09 ± 0.01 | |||||
| 56.1 | 0.48 ± 0.01 | |||||
| 80.3 | 0.32 ± 0.02 | 0.7 ± 2.9 | ||||
| 100.7 | 0.16 ± 0.01 | −5.6 ± 2.1 | ||||
| 121.4 | 0.22 ± 0.02 | −4.4 ± 2.0/ | ||||
| 4.7 ± 1.9 | ||||||
| PDS 37 | 57084.18331 | 42.0 | 4.7 | 0.86 | 0.24 ± 0.01 | |
| 43.3 | 0.58 ± 0.01 | |||||
| 49.1 | 0.54 ± 0.01 | |||||
| 50.4 | 0.70 ± 0.02 | |||||
| 60.5 | 0.3 ± 0.01 | |||||
| 61.8 | 0.09 ± 0.01 | |||||
| 88.9 | 0.38 ± 0.02 | 0.2 ± 2.0 | ||||
| 89.5 | 0.53 ± 0.01 | 0.4 ± 0.6 | ||||
| 90.3 | 0.14 ± 0.01 | −1.0 ± 2.5 | ||||
| 93.0 | 0.56 ± 0.03 | −1.0 ± 3 | ||||
| 124.4 | 0.32 ± 0.01 | 4.0 ± 3.1/ | ||||
| −0.7 ± 2.8 | ||||||
| 127.4 | 0.45 ± 0.01 | −0.3 ± 2.4/ | ||||
| 1.5 ± 1.8 | ||||||
Notes. The closure phases are the product of three baselines, and we report them at the highest spatial frequency (longest baseline of the triplet).
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