\begin{table}%t2
%\centering
\par
  \caption{RS amplitude estimates for three mass-selected cluster subsamples.
  \label{tab:res1}}
    \begin{tabular}{ccccc}
      \hline\hline
      mass & clusters  & simulation & estimate A & estimate B\\
      $M_\odot$ &           &  $\mu \rm K$   & $\mu\rm  K$  & $\mu\rm  K$  \\
      \hline 
      $M>5 \times 10^{13}$ &  6807 & 0.18 & 0.13 $\pm$ 0.03 & 0.16 $\pm$ 0.03\\
      $M>8 \times 10^{13}$ &  266  & 0.25 & 0.24 $\pm$ 0.14 & 0.13 $\pm$ 0.19\\
      $M>1 \times 10^{14}$ &  28   & 0.28 & 0.29 $\pm$ 0.42 & 0.05 $\pm$ 0.68\\
      \hline
    \end{tabular}
\end{table}