\begin{table}%t2
%\centering
\par
\caption {\label{sfrtab}Parameters of the optical luminosity function and value of the star formation rate. The symbol $^*$ means that errors are underestimated.}  
\begin{tabular}{c c c c c }     % 7 columns 
\hline\hline      
                      % To combine 4 columns into a single one 
$z$ & $M^* $ & $\alpha$ & $\phi^*$ (Mpc$^{-3})$ & log~(${\it SFR}_{\rm density}$) ($M_{\odot}$~yr$^{-1}$ Mpc$^{-3}$)    \\ 
\hline                   
\smallskip
   0.1 & $\rm -19.81^{+0.54}_{-1.00}$     & $\rm -1.13^{+0.10}_{-0.10}$ &   $\rm 0.0066^{+0.0030}_{-0.0028}$  & $\rm -1.410^{+0.440}_{-0.087}$ \\ \smallskip
   0.3 & $\rm -20.17^{+0.19}_{-0.22}$     & $\rm -1.18^{+0.07}_{-0.07}$  &  $\rm 0.0057^{+0.0012}_{-0.0011}$ & $\rm -1.288^{+0.047}_{-0.068}$ \\ \smallskip
    0.5 & $\rm -21.05^{+0.19}_{-0.22}$    & $\rm -1.29^{+0.07}_{-0.07}$  &   $\rm 0.0027^{+0.0006}_{-0.0006}$ & $\rm -1.096^{+0.047}_{-0.089}$ \\ \smallskip
   0.7 &  $\rm -21.23^{+0.16}_{-0.18}$    & $\rm -1.33^{+0.08}_{-0.08}$  &  $\rm 0.0027^{+0.0006}_{-0.0005}$ & $\rm -0.965^{+0.038}_{-0.093}$ \\ \smallskip
   0.9 &  $\rm -21.19^{+0.17}_{-0.18}$    & $\rm -1.26^{+0.11}_{-0.11}$  &  $\rm 0.0036^{+0.0008}_{-0.0007}$ & $\rm -0.883^{+0.043}_{-0.096}$ \\ \smallskip
   1.1 & $\rm -21.52^{+0.09}_{-0.09}$     & --1.33 Fixed  &  $\rm 0.0027^{+0.0001}_{-0.0001}$ & $\rm -0.793^{+0.020*}_{-0.104*}$ \\ \smallskip
   1.3 & $\rm -21.54^{+0.10}_{-0.10}$     & --1.33 Fixed  &  $\rm 0.0026^{+0.0001}_{-0.0001}$ & $\rm -0.792^{+0.003*}_{-0.106*}$ \\ 
\hline                  
\end{tabular}
\end{table}