\begin{table}%t2
\caption{Result of Monte Carlo simulation.}
\label{tab:mcfake}
%\centerline
{
\begin{tabular}{cccc}
\hline \hline
   Central $\lambda$      & fake~1      & fake~2  &       \\
      ({\AA})             & (\%)         & (\%)     &       \\ 
\hline
      5500                &  51.5        &  53.4     &       \\
      4585                &  1.8         &  1.2      &        \\
      4210                &  $<$1        &  $<$1     &        \\   
\hline
\end{tabular}}
\medskip
Notes. fake~1 and fake~2 refer to the fake signals inserted between 
 \mbox{2000--3000}~$\mu$Hz and 5500--6500~$\mu$Hz respectively. The second and 
 third columns show the fraction of trials (out of 1000) that either artificial
 peak had an amplitude at least as large as that measured in the corresponding
 passband for F2.
\end{table}