\begin{table}%t1
\caption{DM halo properties.\label{halotable}}
%\centerline
{\begin{tabular}{c c c c c c c c }
%\tableline\tableline
\hline\hline
 $z$ & $C_{\rm vir}$ & $M_{\rm vir}$ & $R_{\rm vir}$ & $N_{\rm part}$ & $\lambda$ & $\tau_{60}$ &   $\tau_{20}$\\  
\hline
 0 & 18.0 & 1.03 $\cdot 10^{11}$ & 94.7 & 84720 & 0.01 & 0.60 & 0.80 \\
 1 & 13.2 & 7.7  $\cdot 10^{10}$ & 51.6 & 63886 & 0.02 & 0.78 & 0.92 \\
 2 &  8.3 & 5.2  $\cdot 10^{10}$ & 30.9 & 42660 & 0.04 &  0.92 & 0.90 \\
\hline
\end{tabular}}
\par
\smallskip
 Column~1: redshift; 
 Col.~2: concentration parameter $C_{\rm vir}$; 
 Col.~3: virial mass, in $h^{-1} ~M_{\odot} $;
 Col.~4: virial radius, in $h^{-1}$ physical kpc;
 Col.~5: number of DM particles within the virial radius;
 Col.~6: spin parameter;
 Col.~7: triaxiality parameter within a sphere of radius $60 ~h^{-1}$~physical kpc;
 Col.~8: triaxiality parameter within a sphere of radius $20 ~h^{-1}$~physical kpc.
\end{table}