\begin{table}%t9
\par
\caption {\label{yields}Ejected masses from the stellar models. $M_{\rm rem}$ is the mass cut
chosen from Woosley et~al. (\cite{Woosley02}). $M_{\rm ej}$ is 
total ejected mass. Last five columns show the yields by element.}                  
%\centering
\par
\begin{tabular}{cccccccc}     % 7 columns 
\hline\hline       
                      % To combine 4 columns into a single one 
Model &  $M_{\rm rem}$ & $M_{\rm ej} $   &  H    & He     & C     &   N    &  O    \\
            &    (\Mo)       &   (\Mo)         & (\Mo) & (\Mo)  & (\Mo) &  (\Mo) & (\Mo) \\
\hline                    
23 \Mo  & 1.60 &   11.6  &  3.84   &  6.08   &  0.57  &  $4.1 \times 10^{-2}$  &  0.93  \\
28 \Mo  & 1.50 &   7.86  &  0.21   &  3.14   &  1.38  &  $1.4 \times 10^{-2}$  &  2.77  \\
29 \Mo  & 1.53 &   8.42  &  0.10   &  3.39   &  1.50  &  $2.0 \times 10^{-2}$  &  3.13 \\
30 \Mo  & 1.45 &   4.40  &  $2.3 \times 10^{-9}$  &  1.51 &  0.99   & $ 3.9 \times 10^{-3}$  &  1.51\\
33 \Mo  & 1.50 &   3.12  &  $1.3 \times 10^{-9}$  &  0.43 & 0.92   & $ 1.1 \times 10^{-5}$   &  1.26\\
\hline                  
\end{tabular}
\end{table}