\begin{table}%t1
\caption{Parameters used for the library of template SEDs.}\label{tab:param}
%\centerline
{
\small\begin{tabular}{lll}
\hline\hline
\noalign{\smallskip}
Method & {\it Smooth  SFHs} & {\it Complex  SFHs} \\
\hline
IMF & Chabrier & Chabrier\\
SFR $\tau$ (Gyr) & [0.1, $\infty]^{a}$ & [1, $\infty$] \\
$\log$~(~Age)$^{b}$ (yr) & [8,10.2]& [8,10] \\
burst age (yr) &  -- & [0,10$^{10}$] \\
burst fraction &  -- & [0,0.9] \\
Metallicities & $Z_{\odot}$ & [0.1 $Z_{\odot}$, 2 $Z_{\odot}$] \\
Extinction & Calzetti law  & Charlot \& Fall ~model \\
& & ($n=0.7$, $\mu \in$ [0.1,1])  \\
Dust content& $A_V^{{\rm c}}$ $\in$ [0, 2.4]  & $\tau_V\in[0,6]$ \\
\noalign{\smallskip}
\hline
\end{tabular}}
\smallskip
$^a$~$\tau<1$ if star formation starts at $z<1$, $^b$~At each redshift, galaxies are forced to have ages smaller than the Hubble time at that redshift, $^c$~$A_{\rm V}\leq0.6$ if Age/$\tau\geq4$.
\end{table}