Archival VLT/NaCo multiplicity investigation of exoplanet host stars

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Table 3.

Background probability of single epoch companion candidates depending on separation and contrast limit.

System	CC	Sep. (arcsec)	Δ K (mag)	P
HD 113538	1	4.7	19.1	0.61
HD 113538	12	14.7	19.6	7.9
HD 85390	13	20^a	17.5	13.4
HD 190984	1	6.6	16.1	0.04
HD 190984	3	11.6	17.8	0.33

Notes. Values larger than one give the number of expected background sources rather than a probability.

^(a)

We use the maximum separation of the outermost cc in this case since most ccs exhibit similar brightness.

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