Table 3.
Log information for the considered SPHERE-IFS datasets.
| Target | ESO ID | Observation date | T | Δpar | Seeing | Strehl ratio |
|---|---|---|---|---|---|---|
| HR 8799 | 095.C-0298 | 2015-07-04 | 46 | 16.4° | 1.43 | 78% |
| β Pictoris | 097.C-0865 | 2016-09-16 | 116 | 38.5° | 0.45 | 94% |
| HD 131399 | 095.C-0389 | 2015-06-12 | 49 | 37.2° | 1.30 | 78% |
| HD 172555 | 095.C-0192 | 2015-07-11 | 31 ( * ) | 12.9° | 1.20 | – |
Notes. Columns are: target name, ESO survey ID, observation date, number T of available temporal frames, total amount of parallactic rotation Δpar of the field of view, seeing value at the beginning of the observations, and Strehl ratio at 1.6 μm.
( * )The recorded dataset around HD 172555 was made of 62 temporal frames but we selected T = 31 frames by discarding one of them over two, preserving the amount of the parallactic rotation Δpar to slightly increase the difficulty of the spectrum estimation task.
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