\begin{table}%t4
\par
  \caption {\label{tab_sOri_GCS:LF_MF_numbers}Numbers for the luminosity and mass functions.
}
%\centerline
 {  \begin{tabular}{c c c c c c c c c}
 \hline\hline
Jmag range   &  Mass range$^{a}$ & d$M^{b}$  &  d$N^{c}$  & d$N_{\rm CF}^{d}$ &
d$N_{\rm NW}^{e}$ & d$N_{\rm corr}^{f}$ & d$N^{g}_{\rm bol_{\rm corr}}$  & d$N/{\rm d}M$ \\
 \hline
12.00--12.50 &  0.4910--0.3440 &  0.1470 & 44.0 &    1.0        &     3.0      &    43.0 &  36   &  292.52  \\ 
12.50--13.00 &  0.3440--0.2460 &  0.0980 & 55.0 &   11.0        &     5.0      &    44.0 &  35   &  448.98  \\ 
13.00--13.50 &  0.2460--0.1690 &  0.0770 & 47.0 &    8.0        &     3.0      &    39.0 &  50   &  506.49  \\
13.50--14.00 &  0.1690--0.1100 &  0.0590 & 37.0 &    5.0        &     3.0      &    32.0 &  38   &  542.37  \\
14.00--14.50 &  0.1100--0.0670 &  0.0430 & 20.0 &    5.0        &     1.0      &    15.0 &  16   &  348.84  \\
14.50--15.00 &  0.0670--0.0470 &  0.0200 & 23.0 &    1.0        &     2.0      &    22.0 &  23   & 1100.00  \\
15.00--15.50 &  0.0470--0.0360 &  0.0110 & 27.0 &    3.0        &     6.0      &    24.0 &  28   & 2181.82  \\
15.50--16.00 &  0.0360--0.0285 &  0.0075 &  8.0 &    2.0        &     1.0      &     6.0 &   1   &  800.00  \\
16.00--16.50 &  0.0285--0.0233 &  0.0052 &  5.0 &    2.0        &     0.0      &     3.0 &   5   &  576.92  \\
16.50--17.00 &  0.0233--0.0182 &  0.0051 &  6.0 &    0.0        &     0.0      &     6.0 &   8   & 1176.47  \\
17.00--17.50 &  0.0182--0.0141 &  0.0041 &  8.0 &    2.0        &     0.0      &     6.0 &   3   & 1463.41  \\
17.50--18.00 &  0.0141-0.0114 &  0.0027 &  2.0 &    1.0        &     0.0      &     1.0 &   1   &  370.37  \\
18.00--18.50 &  0.0114-0.0092 &  0.0022 &  3.0 &    2.0        &     0.0      &     1.0 &   2   &  454.55  \\
18.50--19.00 &  0.0092-0.0075 &  0.0017 &  7.0 &    4.0        &     0.0      &     3.0 &   3   &  588.24  \\
 \hline
 \end{tabular}}
\par
 \smallskip
\par
 $^{a}$  Mass range associated to the magnitude range given in the first column: we assumed an age of 3~Myr and a distance of 352~pc;
$^{b}$  Difference between the masses, d$M$;
$^{c}$  Numbers of candidate members identified in \sOri{};
$^{d}$  Numbers of contaminants identified in the control field (CF)
$^{e}$  Numbers of objects located beyond 10~arcmin towards the North-West of the cluster center, where the contamination by the old population is the highest;
 $^{f}$  Numbers of candidate members in \sOri{} using method \#1 and corrected for contamination;
 $^{g}$  Numbers of candidate members in \sOri{} using method \#2 after correction for contamination estimated from the control field;
 $^{h}$  Values for the mass function in linear scale (d$N/{\rm d}M$) using method~\#1.
\end{table}