\begin{table}%T1
	\caption{\label{cross}Results of the cross-identification.}
	\small%\centering
\par
	\begin{tabular}{ccccc}
	\hline
	\hline
	Number& WFI  & 2MASS  & IRAC  & Number of \\
	 of stars &detection&detection&detection&X-ray sources \\
	\hline
	$146  $    &$no$&	$no$&	$no $&	$146$\\
	$20~476$    &$no$&	$no$&	$yes$&	$0  $\\
	$2732 $    &$no$&	$yes$&	$no$&	$26 $\\
	$17~768$    &$no$&	$yes$&	$yes$&	$64 $\\
	$12~535$    &$yes$&	$no$&	$no$&	$196$\\
	$1071 $    &$yes$&	$no$&	$yes$&	$178$\\
	$2648 $    &$yes$&	$yes$&	$no$&	$74 $\\
	$2782 $    &$yes$&	$yes$&	$yes$&	$370$\\
	\hline
	\end{tabular}
	\end{table}