Open Access
Table 1
AF Lep observations.
| UT date | Object | Setting | Offset | DIT (min) | Integration time (min) | Airmass | Seeing (″) | Coherence time (ms) | Transmission (%) |
|---|---|---|---|---|---|---|---|---|---|
| 2023-11-20 | AF Lep A | H1567 | 1 | 2 | 2 | 1.20 | 0.6 | 4.0% | |
| 2023-11-20 | AF Lep b | H1567 | 1 | 20 | 100 | 1.19−1.05 | 0.6 | 4.7 | |
| 2023-11-20 | Background | H1567 | 1 | 2 | 2 | ||||
| 2023-11-20 | Background | H1567 | 1 | 20 | 100 | ||||
| 2023-11-23 | AF Lep A | H1567 | 1 | 2 | 4 | 1.25 | 0.8–1.0 | 4.6 | 3.8% |
| 2023-11-23 | AF Lep A | H1567 | 2 | 2 | 4 | 1.25 | 0.8–1.0 | 4.6 | 3.8% |
| 2023-11-23 | AF Lep b | H1567 | 1 | 20 | 80 | 1.19−1.03 | 0.7–1.0 | 5.1 | |
| 2023-11-23 | AF Lep b | H1567 | 2 | 20 | 60 | 1.19−1.03 | 0.7–1.0 | 5.1 | |
| 2023-11-23 | Background | H1567 | 1 | 2 | 4 | ||||
| 2023-11-23 | Background | H1567 | 2 | 2 | 4 | ||||
| 2023-11-23 | Background | H1567 | 1 | 20 | 100 | ||||
| 2023-11-23 | Background | H1567 | 2 | 20 | 20 | ||||
Notes. During the second night we used an offset procedure in which the science fiber is shifted by approximately 10 pixels along the slit (see Sect. 2).
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