Open Access
Table 3
Weather conditions of the ADI epochs.
| Target | Wind speed | τ0 | Seeing |
|---|---|---|---|
| (m s−1) | (ms) | (′′) | |
| LkCa 15 | 1.0 | 19.5 | 1.53 |
| HD 34282 | 1.8 | 1.3 | 1.18 |
| HD 36112 | 4.1 | 6.9 | 1.02 |
| CQ Tau | 5.0 | 8.3 | 0.69 |
| Sz Cha | 4.9 | 3.7 | 0.69 |
| TW Hya | 4.5 | 11.5 | 0.58 |
| HD 97048 | 8.5 | 3.6 | 0.95 |
| HD 100546 | 8.2 | 1.7 | 0.81 |
| PDS 66 | 11.4 | 2.8 | 0.99 |
| PDS 70 | 2.9 | 7.0 | 0.42 |
| HD 135344B | 6.5 | 8.5 | 0.50 |
| HD 139614 | 13.9 | 1.5 | 1.81 |
| RX J1604.3-2130A | 11.0 | 2.0 | 1.40 |
| RX J1615.3-3255 | 6.9 | 6.7 | 0.64 |
| HD 169142 | 12.6 | 4.1 | 0.43 |
Notes. Median wind speed, turbulence coherence time and seeing during the ADI observations of Table 2. Low wind effects are usually avoided with a wind speed >3 m s−1, and a τ0 > 3 ms effectively eradicates the wind-driven halo in SPHERE observations.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.