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Table 2

Astrometric and photometric results of the candidate binaries and multiples resolved in our study.

HD MJD Separation Position K mag K mag K mag K mag Projected Chance
number angle difference system primary secondary linear projection
separation probability
[′′] [°] [AU] [%]
Binaries
9289 54311.35 0.441 ±  0.003 72.7 ±  0.7 1.70 ±  0.01 8.87 ±  0.02 9.08 ±  0.03 10.77 ±  0.05 2.16  ×    10-4
12932 54311.37 0.239 ±  0.003 171.4 ± 0.9 0.65 ± 0.01 9.46 ± 0.02 9.94 ± 0.03 10.59 ± 0.06 4.77  ×    10-5
∗99563 54210.04 1.784 ± 0.004 216.6 ± 0.5 0.66 ± 0.01 7.74 ± 0.02 8.21 ± 0.03 8.87 ± 0.05 455.1 ± 133.5 1.77  ×    10-3
101065 54212.11 8.648 ± 0.005 140.9 ± 0.5 7.45 ± 0.04 6.92 ± 0.02 6.92 ± 0.02 14.37 ± 0.06 968.4 ± 94.3 5.47
185256 54233.35 4.965 ± 0.005 306.7 ± 0.5 8.61 ± 0.06 8.92 ± 0.03 8.92 ± 0.03 17.53 ± 0.08 6.31
196470 54262.37 6.921 ± 0.003 190.9 ± 0.5 6.73 ± 0.02 9.17 ± 0.02 9.17 ± 0.02 15.90 ± 0.04 6.29
∗201601 54266.25 0.829 ± 0.003 256.8 ± 0.5 2.71 ± 0.01 4.01 ± 0.26 4.09 ± 0.26 6.80 ± 0.29 30.1 ± 0.7 3.82  ×    10-4
203932 54262.40 0.227 ± 0.003 98.2 ± 0.9 1.10 ± 0.01 8.13 ± 0.02 8.46 ± 0.03 9.57 ± 0.06 7.18  ×    10-5
Systems with more than one companion candidate
86181 AB 54223.07 6.560 ± 0.004 116.9 ± 0.5 6.04 ± 0.01 8.68 ± 0.02 8.68 ± 0.02 14.71 ± 0.03 1879.7 ± 565.5 24.7
86181 AC 5.549 ± 0.003 94.7 ± 0.5 6.80 ± 0.02 15.48 ±  0.04 1590.0 ±  478.4 29.5
86181 AD 3.532 ± 0.004 294.3 ± 0.5 8.43 ± 0.04 17.11 ±  0.06 1012.0 ±  304.5 14.3
86181 AE 7.309 ± 0.004 137.6 ± 0.5 8.97 ± 0.05 17.65 ±  0.07 2094.3 ±  630.1 48.5
86181 AF 8.222 ± 0.005 44.3 ± 0.5 9.42 ± 0.07 18.10 ±  0.09 2355.9 ±  708.8 56.8
86181 AG 6.848 ± 0.005 47.7 ± 0.5 9.66 ± 0.08 18.33 ±  0.09 1962.2 ±  590.3 44.1
86181 AH 3.068 ± 0.006 267.5 ± 0.5 9.94 ± 0.09 18.61 ±  0.11 879.1 ±  264.5 11.0
86181 AI 5.088 ± 0.005 268.8 ± 0.5 9.97 ± 0.09 18.64 ±  0.11 1457.9 ±  438.6 27.5
86181 AJ 4.256 ± 0.009 342.1 ± 0.5 10.22 ± 0.10 18.90 ±  0.12 1219.5 ±  366.9 20.1
86181 AK 6.497 ± 0.005 293.0 ± 0.5 10.29 ± 0.11 18.97 ±  0.12 1861.6 ±  560.1 40.8
86181 AL 5.560 ± 0.007 34.0 ± 0.5 10.40 ± 0.11 19.08 ±  0.13 1593.1 ±  479.3 31.9
150562 AB 54222.34 7.872 ± 0.003 193.0 ± 0.5 4.43 ± 0.01 8.88 ± 0.02 8.88 ± 0.02 13.31 ± 0.03 45.8
150562 AC 2.122 ± 0.003 1.5 ± 0.5 5.58 ± 0.01 14.46 ±  0.03 9.06
150562 AD 4.459 ± 0.003 111.1 ± 0.5 6.05 ± 0.01 14.93 ±  0.03 37.3
150562 AE 3.492 ± 0.004 299.1 ± 0.5 6.28 ± 0.01 15.15 ±  0.04 25.1
150562 AF 4.725 ± 0.004 125.0 ± 0.5 6.52 ± 0.01 15.40 ±  0.04 41.3
150562 AG 5.024 ± 0.004 138.3 ± 0.5 6.91 ± 0.02 15.79 ±  0.04 45.5
150562 AH 3.224 ± 0.004 258.0 ± 0.5 8.38 ± 0.04 17.26 ±  0.06 22.2
150562 AI 2.813 ± 0.004 282.9 ± 0.5 8.43 ± 0.04 17.31 ±  0.06 17.4
150562 AJ 1.139 ± 0.005 101.8 ± 0.6 8.52 ± 0.04 17.40 ±  0.06 3.08
150562 AK 2.153 ± 0.004 130.9 ± 0.5 8.54 ± 0.04 17.41 ±  0.06 10.6
150562 AL 1.565 ± 0.005 99.6 ± 0.5 8.77 ± 0.05 17.65 ±  0.07 5.74
150562 AM 2.479 ± 0.005 182.2 ± 0.5 8.90 ± 0.05 17.78 ±  0.07 13.8
150562 AN 2.677 ± 0.008 128.8 ± 0.5 9.94 ± 0.09 18.82 ±  0.11 15.9
150562 AO 2.668 ± 0.009 144.8 ± 0.5 10.10 ± 0.09 18.98 ±  0.12 15.8
150562 AP 2.776 ± 0.007 32.4 ± 0.5 10.16 ± 0.10 19.03 ±  0.12 17.0
150562 AQ 2.055 ± 0.009 182.6 ± 0.5 10.60 ± 0.12 19.48 ±  0.15 9.68
150562 AR 2.830 ± 0.018 158.8 ± 0.6 10.61 ± 0.12 19.49 ±  0.14 17.6
154708 AB 54222.31 8.919 ± 0.003 113.8 ± 0.5 4.65 ± 0.01 7.95 ± 0.03 7.97 ± 0.03 12.62 ± 0.04 1321.3 ± 187.9 3.88
154708 AC 0.782 ± 0.004 53.0 ± 0.6 4.78 ± 0.01 12.75 ±  0.05 115.9 ± 16.5 3.43  ×    10-2
154708 AD 7.608 ± 0.003 89.0 ± 0.5 8.85 ± 0.06 16.81 ±  0.09 1127.1 ±  160.3 38.0
154708 AE 5.185 ± 0.004 184.2 ± 0.5 9.32 ± 0.07 17.29 ±  0.10 768.1 ±  109.2 20.2
154708 AF 9.246 ± 0.008 342.1 ± 0.5 9.59 ± 0.08 17.56 ±  0.11 1369.8 ±  194.8 51.3
161459 AB 54210.08 8.820 ± 0.006 12.6 ± 0.5 8.10 ± 0.05 9.54 ± 0.02 9.54 ± 0.02 17.64 ± 0.07 50.6
161459 AC 7.981 ± 0.011 231.7 ± 0.5 8.87 ± 0.07 18.41 ±  0.10 43.9
193756 AB 54258.37 8.835 ± 0.005 144.3 ± 0.5 7.37 ± 0.04 8.65 ± 0.02 8.65 ± 0.02 16.02 ± 0.06 7.73
193756 AC 6.045 ± 0.010 132.9 ± 0.5 8.53 ± 0.07 17.17 ±  0.09 3.85
Magnetic Ap stars
∗55719 53729.34 0.714 ±  0.003 265.0 ±  0.6 2.97 ±  0.01 5.14 ±  0.02 5.21 ±  0.02 8.18 ±  0.04 90.0 ± 4.3 5.67  ×    10-4

Notes. In Col. 1, we list the HD number for each system as well as the pair designation for the systems with more than one companion candidate, and Col. 2 gives the modified Julian date for the observations. In Cols. 3–5, we show the separation, position angle (from North to East), and magnitude difference in the K band between the components, as retrieved by aperture photometry from our images. In Col. 6, we give the K band magnitude for the whole system, as derived from the 2MASS or DENIS catalogs, and in Cols. 7 and 8 we give K band magnitudes for the primary and secondary component, as determined from Cols. 5 and 6. Whenever we have a parallax available, we give the projected linear separation in Col. 9. Column 10 finally lists the chance projection probability of the secondary component, as described in Sect. 3.2. An asterisk preceding the HD number in Col. 1 indicates systems where the companion was known before our study.

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