\begin{table}%t2
%\begin{center}
\par
\caption{Radial-velocity measurements of CoRoT-Exo-4 with SOPHIE (lines 1 to 7) and with HARPS (lines 8 to 20). ``BIS'' is the slope of the bisector span, measured in the cross-correlation function.  }
\label{tab:rv}  
\begin{tabular}{lllll}
\hline\hline
\small
BJD &  {\it RV} & Uncertainty & BIS & err(BIS)\\
 --2~400~000 &      [km~s$^{-1}$] & [km~s$^{-1}$]&[km~s$^{-1}$]&[km~s$^{-1}$] \\
\hline  
54~405.6545 &  32.370&0.024&  $ -0.021$ & 0.048 \\
54~408.6667 &  32.278&0.018&  $ -0.004$ & 0.036 \\
54~410.6344 &  32.258&0.027&  $ -0.025$ & 0.054 \\
54~413.6784 &  32.343&0.034&  $ -0.113$ & 0.068 \\
54~416.6908 &  32.294&0.027&  $ -0.097$ & 0.054 \\
54~494.3741 &  32.259&0.019&  $ +0.020$ & 0.036 \\
%54499.3631*&  32.220&0.0400&  $ -0.138$ & 0.080 \\
54~507.3778 &  32.320&0.020&  $ +0.067$ & 0.040 \\
\hline
54~423.8430&   32.352&0.022&   $ +0.020$ & 0.044 \\
54~424.8273&   32.344&0.019&   $ +0.012$ & 0.040 \\
54~428.8091&   32.234&0.014&   $ -0.017$ & 0.028 \\
54~442.7618&   32.381&0.012&   $ +0.032$ & 0.024 \\
54~443.7161&   32.361&0.021&   $ -0.050$ & 0.042 \\
54~445.7748&   32.270&0.012&   $ -0.012$ & 0.024 \\
54~447.7813&   32.239&0.013&   $ +0.015$ & 0.026 \\
54~448.7990&   32.268&0.014&   $ -0.005$ & 0.028 \\
54~449.7871&   32.272&0.017&   $ +0.002$ & 0.034 \\
54~450.7729&   32.373&0.013&   $ -0.072$ & 0.026 \\
54~481.6668&   32.287&0.016&   $ +0.040$ & 0.032 \\
54~482.6719&   32.287&0.015&   $ +0.040$ & 0.030 \\
54~486.6509&   32.290&0.015&   $ -0.002$ & 0.030 \\
\hline 
\end{tabular}
%\end{center}
\par
\end{table}