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Table 8

Measured brightness differences and mean apparent magnitudes.

Object Epoch J-band H-band Ks-band Ob- J-band H-band Ks-band
[mag] [mag] [mag] ject [mag] [mag] [mag]
RX J0915.5-7609 A-B 2 Mar. 2007 1.501  ±  0.023 A 8.736
19 Feb. 2009 1.448  ±  0.081 B 10.212
RX J0919.4-7738 Aa-B 19 Feb. 2008 0.796  ±  0.130 Aa 8.236
Ab-B 1.141  ±  0.114 Ab 8.581
Aa-Ab 0.344  ±  0.043 B*,d 7.440
RX J0935.0-7804 A-B 2 Mar. 2007 0.113  ±  0.021 A 10.482 9.587
18/19 Feb. 2008 0.133  ±  0.009 0.100  ±  0.118 B 10.615 9.701
20 Feb. 2009 0.130  ±  0.015
RX J0952.7-7933 A-B 1 Mar. 2007 1.575  ±  0.055 A 8.580 8.307 8.244
18 Feb. 2008 1.541  ±  0.017 1.647  ±  0.148 B 10.127 9.944 9.718
19 Feb. 2009 1.553  ±  0.020 1.637  ±  0.256 1.486  ±  0.059
23 Feb. 2010 1.411  ±  0.014
23 Dec. 2010 1.365  ±  0.017
25 Mar. 2011 1.361  ±  0.014
RX J1014.2-7636 A-B 23 Feb. 2010 0.073  ±  0.014 A 9.598
25 Mar. 2011 0.045  ±  0.010 B 9.656
SZ Cha A-B 16 Feb. 2006 3.518  ±  0.050 A* 7.758
19 Feb. 2009 3.406  ±  0.031 B 11.220
Ced 110 IRS 2 A-B 16 Feb. 2006 2.358  ±  0.060 A 7.689 6.529
19 Feb. 2008 2.628  ±  0.011 2.507  ±  0.007 B 10.318 8.962
Cha Hα 2 A-B 25 Mar. 2005a,b 0.085  ±  0.028 A 12.906 11.374
16 Feb. 2006 0.111  ±  0.032 B 13.023 11.484
1/2 Mar. 2007 0.116  ±  0.048 0.135  ±  0.065
VW Cha A-B 17 Feb. 2006 1.663  ±  0.007 A 7.280
A-C 2.268  ±  0.006 B 8.943
B-C 0.605  ±  0.005 C 9.548
RX J1109.4-7627 A-B 26 Mar. 2006c 1.174  ±  0.008 1.089  ±  0.010 A 9.361 9.033
20 Feb. 2009 1.175  ±  0.005 B 10.535 10.149
24 Feb. 2010 1.084  ±  0.020
HD 97300 A-B 26 Mar. 2006c 3.463  ±  0.054 3.119  ±  0.017 A 7.673 7.391 7.215
1 Mar. 2007 2.946  ±  0.010 B 11.478 10.854 10.224
20 Feb. 2008 3.805  ±  0.016 2.962  ±  0.023
WX Cha A-B 25 Mar. 2006c 2.276  ±  0.034 2.678  ±  0.023 A 8.894 8.073
19 Feb. 2009 2.356  ±  0.020 B 11.170 10.590
WY Cha A-B 25 Mar. 2006c 1.554  ±  0.058 1.773  ±  0.018 A 10.205 9.197 8.678
20 Feb. 2008 1.268  ±  0.004 1.415  ±  0.004 B 11.473 10.751 10.272
HJM C7-11 A-B 25 Mar. 2006c 0.490  ±  0.018 0.520  ±  0.029 A 10.280 9.241 8.813
2 Mar. 2007 0.596  ±  0.058 B 10.759 9.684 9.303
19 Feb. 2008 0.472  ±  0.027
19 Feb. 2009 0.479  ±  0.004 0.397  ±  0.024 0.373  ±  0.018
Sz 41 A-B 25 Mar. 2006c 2.571  ±  0.116 2.351  ±  0.039 A 8.622 8.137
19 Feb. 2009 1.999  ±  0.008 B 11.193 10.315
23 Feb. 2010 2.185  ±  0.028
HM Anon A-B 26 Mar. 2006c 1.486  ±  0.012 A 8.853 8.285 8.137
13 May 2007c 1.763  ±  0.023 1.500  ±  0.009 1.443  ±  0.013 B 10.542 9.786 9.572
19 Feb. 2008 1.615  ±  0.019 1.386  ±  0.006
20 Feb. 2009 1.426  ±  0.017

Notes. Mean apparent magnitudes based on combined brightness measurements of 2MASS (Skrutskie et al. 2006). In case of resolved measurements by 2MASS the component for which the brightness was used is marked by a *.

(c)

Rereduced, see also Lafrenière et al. (2008).

(d)

Aa+Ab are slightly brighter than B, being itself an unresolved spectroscopic binary (SB2).

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