Open Access
Table 4
Main characteristics of the SPHERE observations of V1298 Tau used for this work.
| Date | Observing mode | Coronograph | DIMM seeing | τ0 | Wind speed | Field rotation | DIT | Total exposure |
|---|---|---|---|---|---|---|---|---|
| 2019-11-18 | IRDIFS | N_ALC_YJH_S | 0.56″ | 7.7 ms | 7.9 m s−1 | 16.3° | 96 s | 3072 s |
| 2021-10-28 | IRDIFS_EXT | N_ALC_YJH_S | 1.10″ | 4.0 ms | 5.1 m s−1 | 15.0° | 96 s | 3072 s |
| 2021-12-02 | IRDIFS_EXT | N_ALC_YJH_S | 0.56″ | 6.6 ms | 6.4 m s−1 | 16.5° | 96 s | 3072 s |
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