\begin{table}%t3
      \caption{CMR parameters and the galaxy blue fractions.}
      \small%\centering
\par
         \begin{tabular}{lccccc}
            \hline \hline\
{Name}&
{$a$0}&
{$a$1}&
{rms}&
{$f_{\rm b}$ (420~kpc)}&
{$f_{\rm b}$ (735~kpc)} \\
\hline\noalign{\smallskip}
{A~2658} &  $3.301 \pm 0.257$ & $-0.077 \pm 0.013$ & 0.037 & $0.083 \pm 0.079$ & \\
{A~1643} &  $2.825 \pm 0.224$ & $-0.043 \pm 0.011$ & 0.035 & $0.090 \pm 0.086$ & $0.090 \pm 0.086$ \\
{A~1878} &  $3.022 \pm 0.390$ & $-0.046 \pm 0.021$ & 0.060 & $0.363 \pm 0.102$ & $0.517 \pm 0.092$  \\ 
{A~2111} &  $3.285 \pm 0.079$ & $-0.063 \pm 0.004$ & 0.053 & $0.031 \pm 0.030$ &$0.125 \pm 0.052$ \\ 
{A~1952} &  $2.893 \pm 0.257$ & $-0.044 \pm 0.013$ & 0.009 & $0.250 \pm 0.088$ & $0.285 \pm 0.085$  \\
\hline
         \end{tabular}
    \label{tab:CMfb}
   \end{table}