Inverse-problem versus principal component analysis methods for angular differential imaging of circumstellar disks - The mustard algorithm

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Table 2

Data sets used in our study obtained in the H2 band with the IRDIS camera of VLT/SPHERE within the SHINE-F150 survey (Desidera et al. 2021; Langlois et al. 2021).

ID	Star	Date	Rotation (°)	Seeing (″)	Wind speed (m s⁻¹)	Strehl ratio	Coherence time (s)	No. of frames	Comment
1	HIP 107345	2015-07-04	26	1.07	11	0.49	2.1	64	Low Strehl ratio
2	HIP 77457	2015-03-30	115	0.94	17	0.79	1.7	60	Wind-driven halo
3	LP 776-25	2016-01-17	91	0.45	6	0.79	2.9	72	Unstable
4	HIP 103460	2016-09-17	80	0.88	9	0.87	4.3	64	Stable

Notes. Both seeing and coherence time measurements come from the MASS-DIMM sensor. These data sets are said to be “empty,” in the sense that they do not contain any known circumstellar disk or low-mass companion.

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