\begin{table}%t6
\par
\caption {\label{tab:photJ1751}Upper limits ($3\sigma$) on the optical counterpart of XTE~J1751$-$305.}
%\centerline
 {\begin{tabular}{ccccc}
\hline\hline
Filter &${\lambda}_{\rm c}$&  Limiting magnitude &  $A_{\lambda}$  &   Absolute mag   \\ 
       &   (\AA)     &  	           &     (mag)	     &	                \\ 
\hline
$R$    &  6500       & $> $$23.1$            & $4.03 \pm 0.02$   & $>$$ 4.6$        \\
$I$    &  8000       & $> $$21.6$            & $2.91 \pm 0.02$   & $>$$ 4.2$        \\
$Z$    &  9625       & $> $$20.6$            & $2.12 \pm 0.02$   & $> $$4.0$	 \\
$J$    &  12500      & $> $$19.6$            & $1.35 \pm 0.02$   & $> $$3.7$	 \\
\hline
\end{tabular}}
Values in column three are 
uncorrected for reddening (from Jonker et~al. 2003). In column four are reported the dereddening parameters we used to correct 
for interstellar absorption computed assuming $E(B-V)=1.69 \pm 0.02$~mag The absolute magnitudes are computed assuming a distance 
of 8~kpc (Wijnands et~al. 2005; see Sect.~4.3.1 for details).
\vspace*{-3mm}
\end{table}