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Table 1.

List and main characteristics of the SPHERE observations of R CrA used for this work.

Date Obs. mode field/pupil DIMM seeing τ0 Wind speed Rotation DIT Total exposure
2015-06-10 IRDIFS_EXT field 1.35″ 2.2 ms 10.2 m s−1 none 16 s 1680 s
2016-08-10 YJ+BB_H pupil 1.37″ 2.9 ms 12.5 m s−1 24.7° 64 s 1920 s
2018-06-19 IRDIFS_EXT pupil 0.55″ 6.5 ms 7.1 m s−1 71.7° 96 s 4608 s
2018-08-16 IRDIFS_EXT pupil 0.76″ 4.6 ms 7.8 m s−1 90.5° 12 s 5760 s

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