\begin{table}%t6
%\centering
\par
\caption{\label{mass}Galaxy group masses. Column~1: quasar name. Column 2: mass integrated in the original mass map, in a radius of 500~kpc centered on the galaxy overdensity. Column 3: lower mass value reconstructible by {\it LensEnt2}.}
\begin{tabular}{cll}
\hline\hline
 & $M$($<$500~kpc) & $M_{\rm lensed}$($<$500~kpc) \\
 &10$^{14}$~$M_\odot$~$h^{-1}$ &10$^{14}$~$M_\odot$~$h^{-1}$\\
\hline 
\ctq &  1.6 & 1.7 \\
\hezero & 4.0 & 3.6 \\
\lbqs & 2.4 & 5.3 \\
\bdix & 2.3 & 2.4 \\
\btreize & 10.7 & 12.7 \\
\clover & 1.8 & 2.0 \\
\hevingt & 3.2 & 2.6 \\
\hline
\end{tabular}
\end{table}