\begin{table}%t5
%\centering
\par
\caption{\label{tab:flux0} Absolute flux calibration constants and 
effective wavelengths for the optical and near-IR pass-bands.}
\small
\begin{tabular}{cccc}  
\hline\hline
Filter & $F^0 _{\lambda}$ & $\lambda_{\rm eff}$ & Ref. \\
       & (erg $\cdot$ s$^{-1}$ $\cdot$ cm$^{-2}$ $\cdot$ \AA$^{-1}$) & ($\mu$m) & \\
%\noalign{\medskip}
\hline
%\noalign{\medskip}
$R_C$ &	$2.25 \times  10^{-9}$   & 0.64  & \citet{Cou76} \\ 
$I_C$ & $1.19 \times 10^{-9}$   & 0.79  & \citet{Cou76} \\ 
$z$   & $8.40 \times 10^{-10}$  & 0.96  & This work     \\	 
$J$   & $3.13 \times 10^{-10}$  & 1.25  & \citet{Cut03} \\	 
$H$   & $1.13 \times 10^{-10}$  & 1.62  & \citet{Cut03} \\ 
$K$   & $4.28 \times 10^{-11}$  & 2.20  & \citet{Cut03} \\ 
\hline
\end{tabular}
\end{table}