\begin{table}%t2
%\centering
\par
\caption{\label{tab:sfh} SFRs, metallicities, and internal dust extinction per galaxy type.} 
\begin{tabular}{l c c r c} 
\hline\hline  \noalign{\smallskip}
\multicolumn{1}{c}{Galaxy type} & \multicolumn{1}{c}{SFR}  & \multicolumn{1}{c}{$\tau_*^{\rm a}$}  & \multicolumn{1}{c}{$Z^{\rm b}$}  & \multicolumn{1}{c}{$\tau_{\rm dust,star}(B,{\rm @}R_{25}/2)^{\rm c}$}\\
\multicolumn{1}{c}{(1)} & \multicolumn{1}{c}{(2)} & \multicolumn{1}{c}{(3)} & \multicolumn{1}{c}{(4)} & \multicolumn{1}{c}{(5)}\\
\hline 
E-S0a & SSP & ...&0.02 & 0.10\\
Sa-Sab & exponential& 4 & 0.02 & 0.55\\ 
Sb-Sbc & exponential & 7 & 0.008 & 0.70 \\ 
Sc-Scd & exponential & 9 & 0.004 & 0.37 \\ 
Sd-Irr & constant & ... & 0.004 & 0.09\\
\hline 
\end{tabular}
\tablefoot{\tablefoottext{a}{$e$-folding timescale in Gyr;}
\tablefoottext{b}{metallicity;}
\tablefoottext{c}{optical depth in $B$ due to internal dust extinction (M09). See the text for more details.}}
\end{table}