Direct imaging of an ultracool substellar companion to the exoplanet host star HD 4113 A

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Table 2

Observing log for the two SPHERE datasets.

			Coronagraphic sequence		Photometric sequences			Sky sequence
Camera	Date	Filter/prism	DIT	Exposures	DIT	Exposures	ND filter	DIT	Exposures
IRDIS	2016-07-20	H2 + H3	64 s	64	0.84 s	40	ND 1.0	64	2
IFS	2016-07-20	Y-J	64 s	64	2 s	20	ND 1.0	64	2
IRDIS	2015-10-08	K1 + K2	32 s	56	0.84 s	4	ND 1.0	64	2
IFS	2015-10-08	Y-H	32 s	56	2 s	4	ND 1.0	64	2

Notes. The “flux columns refer to the short-exposure images of HD 4113A used as a PSF reference and to measure the flux of the primary.

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