\begin{table}%t1
\caption{\label{tab1}Frequencies and amplitudes found by a pre-whitening procedure
on the HARPS RV~data. 
}
\small%\centering
\par
\begin{tabular}{cccc}
\hline\hline\noalign{\smallskip}
Frequency   &  Amplitude  & Comment  \\
(c~d$^{-1}$)       &     (m~s$^{-1}$)&  \\
\hline 
0.0448  $\pm$ 0.00016 & 8.68 $\pm$  0.46    &  $f_{\rm rot}$ \\
0.1108	$\pm$ 0.00021 & 6.94 $\pm$ 0.45    &  $f_3$ \\
0.0959	$\pm$ 0.00025 & 5.92 $\pm$ 0.43    &  $f_4$ \\
1.1702	$\pm$ 0.00026 & 5.75 $\pm$ 0.44    &  $f_1$\\
0.2707	$\pm$ 0.00029 & 5.10 $\pm$ 0.40    &  $f_2$ \\
0.0353	$\pm$ 0.00028 & 4.34 $\pm$ 0.49     & $f_5$ \\
0.1815	$\pm$ 0.00046 & 3.57 $\pm$  0.44     & $f_6$ \\
\noalign{\smallskip}
0.2516	$\pm$ 0.00080 & 2.23 $\pm$ 0.40     & $f_7$ \\
0.0868  $\pm$ 0.00080 & 2.03 $\pm$ 0.40     & $f_8$ \\ 
\hline
\end{tabular} 
\tablefoot{Frequencies above the space break have false alarm
probabilities less than 0.01. Those below the horizontal line are additional
frequencies found by continuing the pre-whitening procedure that resulted
in an rms scatter close to the mean measurement error of the HARPS RV
data.}
\end{table}