Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Diverse outcomes of binary–disk interactions

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Table 2

Observing log of three young binary (or triple) systems with SPHERE/IRDIS.

Object	Date	Filter	DIT (s)	NDIT	N_cycle	On-target time (min)	Seeing (″)	τ₀ (ms)
CHX 22	2020-02-18	BB_H	2	24	14	44.8	0.43–0.96	11.5
CHX 22	2020-02-28	BB_H	8	8	13	55.5	0.6–1.17	5.2
S CrA	2021-09-08	BB_H	8	2	42	44.8	0.46–0.77	5.8
HP Cha	2020-01-13	BB_H	64	1	14	59.7	0.33–0.54	8.5

Notes. DIT: integration time per exposure. NDIT: number of exposures per half-wave plate position. N_cycle: number of full polarimetric cycles.

τ₀: atmospheric coherence time.

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