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Table 1.
Observation log of the VLTI GRAVITY+UT high-resolution (R ∼ 4000) observations of NGC 2024 IRS 2.
| Date UT | Tot. Int. | DIT (a) | NDIT (b) | Proj. baselines | PA (c) | Calibrator | UD diameter (d) |
|---|---|---|---|---|---|---|---|
| yyyy-mm-dd hh:mm | [s] | [s] | [s] | [m] | [°] | [mas] | |
| 2019-01-21 05:04 | 900 | 30 | 10 | 45, 45, 56, 72, 101, 119 | 298, 46, 36, 82, 40, 62 | HD 31464, HD 37491 | 0.186 ± 0.004, 0.464 ± 0.018 |
| 2019-01-21 05:27 | 900 | 30 | 10 | 44, 56, 100 | 45, 36, 40 | HD 31464, HD 37491 | 0.186 ± 0.004, 0.464 ± 0.018 |
| 2019-01-21 06:00 | 900 | 30 | 10 | 34, 43, 55, 56, 98, 103 | 309, 43, 35, 80, 39, 53 | HD 31464, HD 37491 | 0.186 ± 0.004, 0.464 ± 0.018 |
Notes.
(d)
The calibrator uniform-disc (UD) diameter (K band) was taken from Chelli et al. (2016).
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