\begin{table}%t1
%\centering
\par
\caption{\label{tab:decomp}Parameters $\alpha$ and~$\beta$ and inner baryon dominance radius of the disc/halo decompositions in Fig.~\ref{fig:decomp}, for CML and VML disc RCs.}
\begin{tabular}{p{1.8truecm} c c c c c c}
\hline\hline\noalign{\smallskip}
& \multicolumn{3}{c}{$\langle {\rm M}_I \rangle$ = --19.4}
& \multicolumn{3}{c}{$\langle {\rm M}_I \rangle$ = --20.9} \\
& $\alpha$ & $\beta$ & $\frac{R_{\rm IBD}}{R_{\rm opt}}$ & $\alpha$ & $\beta$ & $\frac{R_{\rm IBD}}{R_{\rm opt}}$ \\
\hline
VML (s=1.0) &   0.87   &  0.17   & 0.32 &   0.92   &   0.39 & 0.76 \\
VML (s=0.7) &   0.80   &  0.13   & 0.25 &   0.75   &   0.30 & 0.55 \\
VML (s=0.5) &   0.75   &  0.10   & 0.20 &   0.61   &   0.21 & 0.36 \\
\hline
CML     &   0.94   &  0.24   & 0.42 &   1.22   &   0.53 & 1.08 \\
\hline\hline
& \multicolumn{3}{c}{$\langle {\rm M}_I \rangle$ = --22.4} & 
\multicolumn{3}{c}{$\langle {\rm M}_I \rangle$ = --23.1} \\
& $\alpha$ & $\beta$ & $\frac{R_{\rm IBD}}{R_{\rm opt}}$ & $\alpha$ & $\beta$ & $\frac{R_{\rm IBD}}{R_{\rm opt}}$ \\
\hline
VML (s=1.0) &   1.28   &  0.64   & 1.34          &   1.29   &   0.69 & 1.53 \\
VML (s=0.7) &   0.94   &  0.52   & 1.05          &   0.93   &   0.57 & 1.18 \\
VML (s=0.5) &   0.75   &  0.42   & 0.81          &   0.75   &   0.46 & 0.91 \\
\hline
CML     &   1.63   &  0.80   & 1.93          &   1.71   &   1.85 & $>$2\\
\hline
\end{tabular}
\end{table}