\begin{table}%t1 \caption{\label{tab1}List of CMaX sources observed with {\it Gemini}.} %\centerline {\small \begin{tabular}{l|cccccc|cc|cc|c} \hline\hline & \multicolumn{6}{c}{X-ray source} & \multicolumn{2}{|c}{Expected$^a$} & \multicolumn{2}{|c|}{Candidates$^b$} & \\ %\hline CMaX& RA & Dec & Err & Cnts/ks & S/N & log$L_{\rm X}$ & $J$ & $R$ & Optical & Near-IR& $A_{\rm V}$ \\ & J2000 & J2000 &($''$) & & & (erg/s) & (mag) & (mag) & & & (mag) \\ \hline 15& 07:00:15 & --11:18:51 & 10 &1.9 & 4.8& 30.39 & 11.8 & 13.3 & 12& 6 & 1.23~$\pm$~0.03\\ 17N& 07:00:19 & --11:22:10 & 9 & 0.38 & 1.7 &29.69 & 14.0 & 16.5 & 4& 4 & 0.6~$\pm$~0.3\\ 17S& 07:00:20 & --11:23:20 & 9 & 1.31 & 4.3 &30.23 & 12.3 & 14.0 & 12& 5 & 0.6~$\pm$~0.3\\ 37& 07:01:25 & --11:08:50 & 15 &2.1&5.3& 30.44 & 11.7 & 13.1 & 15& 5 & 0.4~$\pm$~0.6 \\ 42& 07:01:34 & --11:11:16 & 10 &1.8 & 4.5 & 30.37 & 11.9 & 13.3 & 32& 9 & 0.4~$\pm$~0.6 \\ 55S& 07:02:07 & --11:17:11 & 30 & 0.59 & 2.0 &29.88 & 13.4 & 15.6& 5& 3 & $1.2\pm1.0$\\ 55N & 07:02:08 & --11:16:15 & 30 & 0.72 & 2.6 & 29.97 & 13.1 & 15.2 & 2& 1 & $1.2\pm1.0$\\ \hline \end{tabular}}\medskip \par Columns description: (1) CMaX number; (2, 3) coordinates; (4) diameter of the position error circle; (5, 6) count rate and respective signal-to-noise ratio; (7) X-ray luminosity; (8, 9) Statistically expected near-IR and optical magnitudes calculated by adopting the correlation log$L_X$/absolute magnitude found for young stars (see Sect.~4.4); (10, 11) Number of possible optical counterparts within the X-ray contours, and number of corresponding objects found in the 2MASS catalogue; (12) adopted visual extinction based on a standard reddening law.\\ Notes: (a) The estimated errors are $\sigma_J= 1.2$~mag. and $\sigma_R= 1.4$~mag.; (b) (less than 50{\%} of the candidates have near-IR counterpart). \end{table}