Table A.2: Criteria used to determine whether a secondary is a companion star or a background star. Results are listed for secondaries found around the 22 targets observed with NACO ( top part of the table) and the 9 targets with multi-color observations in the ADONIS dataset ( bottom part of the table). Columns 1 and 2 show the secondary designation and the status of the component as determined in this paper (c = companion star; ? = candidate companion star; b = background star). Columns 3-5 show the compatibility of the location of the object in the color-magnitude diagrams with the isochrones in terms of $\chi ^2$. Confirmed companions have $\chi ^2 < 2.30$ and (confirmed) background stars have $\chi ^2 > 11.8$. The other secondaries have $2.30 < \chi ^2 < 11.8$ and are labeled "candidate companion''. A substantial fraction of these candidate companions may in fact be background stars. Several faint ( $K_{\rm S} > 14$ mag) secondaries are only detected in one filter (thus have no $\chi ^2$), and are all assumed to be background stars.

Star
Status $\chi^2_{J-K_{\rm S},M_{K_{\rm S}}}$ $\chi^2_{H-K_{\rm S},M_{K_{\rm S}}}$ $\chi^2_{J-H,M_{J}}$
HIP 59502 -1 c 2.11 1.09 0.19
HIP 59502 -2 b -- 75.23 --
HIP 59502 -3 b -- -- --
HIP 60851 -1 b 7.77 1.29 15.51
HIP 60851 -2 b >52.81 0.19 >45.54
HIP 60851 -3 ? -- 7.54 --
HIP 60851 -4 b -- 22.34 --
HIP 60851 -5 b -- 26.37 --
HIP 60851 -6 b -- -- --
HIP 60851 -7 b -- -- --
HIP 60851 -8 b -- 237.30 --
HIP 61265 -1 ? 4.46 0.02 3.83
HIP 61265 -2 b 13.77 1.81 5.29
HIP 61265 -3 b -- 13.70 --
HIP 61265 -4 b -- 66.72 --
HIP 61265 -5 b -- -- --
HIP 62026 -1 c 0.91 0.09 0.24
HIP 63204 -1 b 71.62 9.64 17.02
HIP 63204 -2 c 1.76 0.01 1.38
HIP 67260 -1 c 0.01 0.00 0.01
HIP 67260 -2 ? -- 7.20 --
HIP 67260 -3 ? 1.45 3.59 5.27
HIP 67919 -1 c 0.02 0.86 0.39
HIP 68532 -1 c 0.93 1.10 0.00
HIP 68532 -2 c 1.06 0.02 1.70
HIP 69113 -1 c 1.26 0.09 0.63
HIP 69113 -2 c 0.56 0.04 1.38
HIP 73937 -1 c -- 0.01 --
HIP 73937 -2 b -- 22.37 --
HIP 78968 -1 ? 3.88 1.26 0.73
HIP 79098 -1 b 8.45 14.45 39.65
HIP 79410 -1 b 21.58 23.51 19.09
HIP 79739 -1 c 0.44 0.09 0.91
HIP 79771 -1 c 1.46 0.24 0.52
HIP 79771 -2 nc 0.00 0.04 0.02
HIP 80142 -1 b 164.54 59.81 33.27
HIP 80142 -2 ? -- -- 2.61
HIP 80474 -1 b 5.08 73.31 36.05
HIP 80799 -1 c 1.11 0.12 0.62
HIP 80896 -1 c 0.73 0.02 0.53
HIP 81949 -1 b 66.30 7.46 27.51
HIP 81949 -2 b 15.93 0.91 8.99
HIP 81949 -3 b >13.09 0.02 >19.08
HIP 81949 -4 ? >3.88 5.69 >5.59
HIP 81949 -5 b -- -- --
HIP 81949 -6 ? >9.95 0.98 >6.88
HIP 81949 -7 b >5.16 >11.84 --
HIP 81949 -8 b -- -- --
HIP 81949 -9 b -- -- --
HIP 81949 -10 b -- -- --
HIP 81949 -11 b -- -- --
HIP 81949 -12 b -- -- --
HIP 81972 -1 ? 4.36 2.27 0.57
HIP 81972 -2 ? 1.42 1.08 6.03
HIP 81972 -3 c 0.56 1.65 0.20
HIP 81972 -4 nc 0.51 0.11 0.13
HIP 81972 -5 nc 0.90 0.07 0.40
HIP 81972 -6 b -- >16.02 --
HIP 81972 -7 b -- -- --
HIP 81972 -8 b -- -- --
HIP 83542 -1 ? -- 8.25 --
HIP 83542 -2 b -- -- --
ADONIS targets with multi-color observations
HIP 53701 -1 b 12.01 3.72 0.80
HIP 53701 -2 b 33.11 8.54 8.16
HIP 76071 -1 c -- 0.57 --
HIP 77911 -1 c 0.73 0.00 0.74
HIP 78530 -1 ? -- 3.10 --
HIP 78809 -1 c 0.82 0.74 0.02
HIP 78956 -1 c 0.01 0.25 0.33
HIP 79124 -1 c 0.22 0.83 1.88
HIP 79156 -1 c 0.41 1.94 0.45
HIP 80238 -1 c 0.43 0.89 0.06

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