\begin{table}%t4
\caption{\label{tab:b4decomp}SEMMUL Gaussian components decomposition of field $b=-4\degr$, RGB sample only. 
}\vspace*{-2mm}
\small%\centering
\par
\begin{tabular}{lllll}
\hline\hline\noalign{\smallskip}
Pop & [Fe/H] & $\sigma_{\rm [Fe/H]}$ & \% & $\sigma_{\rm r}$ \\ 
\noalign{\smallskip}\hline
A  & $-0.31 \pm 0.05$ & $0.39 \pm 0.02$ & $33 \pm 3$ & { }~$88 \pm 8$ \\
B  & { }~$0.13 \pm 0.02$ & $0.23 \pm 0.01$ & $67 \pm 3$ & $109 \pm 7$ \\
\hline
\end{tabular} \tablefoot{The radial velocity dispersion $\sigma_{\rm r}$ is given in~km~s$^{-1}$.}\vspace*{-2mm}
\end{table}