\begin{table}%t3
%\centering
\par
\caption{\label{Tab3}Coefficients of the linear relations between the
amplitude of the radial velocity curve and the wavelength.}
\begin{tabular}{lcc}
\hline \hline
\par
Name          &            $a_{\lambda}$                  &     $b_{\lambda}$                   \\
\hline
R~TrA   &   $   -0.005  _{\pm   0.002   }$  &   $   32.93   _{\pm   0.80    }$  \\
S~Cru   &   $   -0.005  _{\pm   0.001   }$  &   $   38.50   _{\pm   0.58    }$  \\
Y~Sgr   &   $   -0.005  _{\pm   0.002   }$  &   $   38.26   _{\pm   0.92    }$  \\
$\beta$~Dor &   $   -0.007  _{\pm   0.001   }$  &   $   37.06   _{\pm   0.54    }$  \\
$\zeta$~Gem &   $   -0.006  _{\pm   0.001   }$  &   $   30.39   _{\pm   0.46    }$  \\
RZ~Vel  &   $   -0.010  _{\pm   0.002   }$  &   $   57.76   _{\pm   0.88    }$  \\
$\ell$~Car  &   $   -0.008  _{\pm   0.001   }$  &   $   38.54   _{\pm   0.64    }$  \\
RS~Pup  &   $   -0.011  _{\pm   0.002   }$  &   $   52.39   _{\pm   0.89    }$  \\
\hline \noalign{\smallskip}
\end{tabular}
\end{table}