\begin{table}%t1
\caption{Summary of the main parameters of the  cosmological numerical simulations.}
\label{esp}
%\centering
\begin{tabular}{ c c c c c c c cc}
\hline\hline
 Cosmology & $\Omega_{\rm m}${}$^a$ & $\Omega_{\Lambda}${}$^b$ & $\Omega_{\rm b}${}$^c$ & ${\rm H_0}${}$^d$  &$\sigma_{8}${}$^e$&$N_{\rm g}${}$^f$&$N_{\rm d}${}$^g$&$L${}$^h$ \\
\hline
 $\Lambda$CDM & 0.30  & 0.70 & 0.04 & 70 & 0.90 & $80^{3}$ &  $80^{3}$ &10\\
 SCDM &  1.00 & 0.00 & 0.10 & 50 & 0.62 & 26214 & 235930&5\\
\hline
\end{tabular}
$^a$ $\Omega_{\rm m}$: mass density parameter.
\\
$^b$ $\Omega_{\Lambda}$: vacuum energy density parameter.
\\
$^c$ $\Omega_{\rm b}$: baryonic density parameter.
\\
$^d$ $H_0$: Hubble constant.
\\
$^e$ $\sigma_{8}$: rms density fluctuations at 8 Mpc $h^{-1}$.
\\
$^f$ $N_{\rm g}$: initial number of gas particles.
\\
$^g$ $N_{\rm d}$: total number of dark matter particles.
\\
$^h$ $L$: box size of the simulated volume Mpc $h^{-1}$.
\end{table}