Table 2: Near-IR counterparts of Trumpler 16 X-ray sources. The complete version is available in the electronic version.
Nx 2MASS J+ Offset ('') J mag H mag $K_{\rm s}$ mag Ph.Q Cont. $A_{\rm v}$ Mass Notes
1 10433859-5938306 2.33 14.57 $\pm$ 0.03 13.21 $\pm$ 0.04 12.63 $\pm$ 0.03 AAA 000 7.93 2.05  
2 ---- - --- --- --- - - - -  
3 10434145-5942245 0.30 14.18 $\pm$ 0.03 13.20 $\pm$ 0.02 12.82 $\pm$ 0.02 AAA 000 4.59 2.24  
4 10434126-5941002 2.62 15.47 $\pm$ - 15.31 $\pm$ 0.14 14.60 $\pm$ 0.14 UBB 000 - -  
5 10434295-5944080 1.77 15.63 $\pm$ 0.08 14.31 $\pm$ 0.06 13.27 $\pm$ 0.04 AAA 000 15.27 1.25 K-excess
6 ---- - --- --- --- - - - -  
7 10434401-5948177 0.76 8.70 $\pm$ 0.02 8.51 $\pm$ 0.04 8.47 $\pm$ 0.02 AAA 000 1.38 19.2 O9.5V
8 10434538-5939468 1.92 15.90 $\pm$ - 14.88 $\pm$ - 14.90 $\pm$ 0.16 UUC 000 - -  
9 10434536-5938471 0.36 16.02 $\pm$ 0.10 14.04 $\pm$ 0.04 13.02 $\pm$ 0.04 AAA 000 14.90 1.01  
10 10434525-5941567 2.61 14.37 $\pm$ 0.06 12.99 $\pm$ 0.05 12.18 $\pm$ 0.04 AAA 000 12.05 2.16 K-excess
11 10434659-5949292 1.68 13.69 $\pm$ 0.05 12.68 $\pm$ 0.05 12.25 $\pm$ 0.04 AEA c0c - 2.38  
12 10434809-5949246 0.50 13.51 $\pm$ - 13.09 $\pm$ 0.07 12.85 $\pm$ 0.05 UAA 0cc - -  
13 10434937-5944549 1.45 12.67 $\pm$ 0.02 12.20 $\pm$ 0.03 12.06 $\pm$ 0.03 AAA 000 0.82 4.89  
14 10435007-5945530 0.59 15.56 $\pm$ 0.05 14.59 $\pm$ 0.03 14.19 $\pm$ 0.07 AAA 000 4.31 1.30  
15 10435085-5937437 1.28 14.86 $\pm$ 0.05 13.74 $\pm$ 0.05 13.40 $\pm$ 0.05 AAA 000 3.76 1.86  
16 10435088-5950307 0.47 12.20 $\pm$ 0.02 11.99 $\pm$ 0.03 11.88 $\pm$ 0.02 AAA 000 0.28 6.22  
17 10435123-5940243 1.06 14.60 $\pm$ 0.05 13.38 $\pm$ 0.04 12.88 $\pm$ 0.04 AAA 000 6.57 2.03  
18 10435132-5945239 2.64 15.54 $\pm$ 0.08 14.06 $\pm$ - 13.55 $\pm$ - AUU cpp - 1.31  
19 10435191-5940353 0.40 16.49 $\pm$ 0.16 15.15 $\pm$ 0.09 14.63 $\pm$ 0.11 CAA 000 - 0.70  
20 10435186-5948017 2.02 14.49 $\pm$ 0.05 13.46 $\pm$ 0.06 12.95 $\pm$ 0.05 AAA 000 6.60 2.09  
21 10435223-5941574 0.29 14.83 $\pm$ 0.05 14.46 $\pm$ 0.08 14.35 $\pm$ 0.11 AAA 000 - 1.88  
22 10435230-5939222 1.87 13.03 $\pm$ 0.04 11.90 $\pm$ 0.06 11.20 $\pm$ 0.04 AEE 000 - 3.55 Mass-deg.
23 10435408-5941463 1.19 15.40 $\pm$ 0.07 14.24 $\pm$ 0.05 13.79 $\pm$ 0.05 AAA 000 5.47 1.40  
24 10435419-5938073 2.13 13.03 $\pm$ - 13.70 $\pm$ 0.06 13.53 $\pm$ 0.07 UAA 0cc - -  
25 10435501-5936242 0.75 11.64 $\pm$ 0.02 11.48 $\pm$ 0.03 11.37 $\pm$ 0.03 AAA 000 0.42 8.28  
26 10435505-5947505 0.70 14.18 $\pm$ 0.03 13.81 $\pm$ 0.04 13.70 $\pm$ 0.06 AAA 000 - 2.24  
27 10435545-5942531 0.50 14.93 $\pm$ 0.05 14.11 $\pm$ 0.05 13.84 $\pm$ 0.06 AAA 000 2.37 1.81  
28 10435557-5949226 0.39 13.44 $\pm$ 0.03 12.65 $\pm$ 0.03 12.24 $\pm$ 0.03 AAA 000 5.08 2.45  
29 10435606-5949351 1.97 14.53 $\pm$ 0.05 13.83 $\pm$ 0.05 13.60 $\pm$ 0.06 AAA 000 1.87 2.07  
30 10435684-5942364 0.45 14.70 $\pm$ 0.05 13.57 $\pm$ 0.03 12.88 $\pm$ 0.04 AAA 000 9.63 1.97 K-excess
Column 3 (``Offset'') is the offset between X-ray and near-IR counterpart. Ph.Q refers to the 2MASS photometric quality flags for the J, H and, $K_{\rm s}$ bands: ``A'' to ``D'' indicate decreasing quality of the measurements, ``U'' that the value is an upper limit. The next column refers to the contamination and confusion flag: for further analysis we considered only sources unaffected by known artifacts, i.e. Cont. = 000 (see 2MASS documentation for details). Masses are given in solar units, and the last column contains information presented in Sect. 4. Note: the ``M ASS-DEG.'' flag indicates mass degeneracy according to a Siess-based Jmag-Mass calibration.

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