\begin{table}%ta1
  \caption{\label{12745tb7}Yields of elements in solar masses for different SNe
 models. Type Ia yields were calculated for each element for the W7,
 W70, WDD1, WDD2, WDD3 and CDD1, CDD2 models in \citet{iwamoto99}. SN
 core-collapsed yields (including types~Ib and~Ic) were calculated from
 the results in \citet{nomoto06} integrating over a progenitor initial
 mass function. We have considered two different initial mass
 functions, the Salpeter function with index 1.35 and the AY top-heavy
 function with index 0.95, and we have integrated between 10 and 50~solar masses. The initial metallicity of the progenitors is $Z=0.02$
 (i.e. solar).}
 %\centering
\par
 \begin{tabular}{lccccccc} 
\hline \hline
 \multicolumn{8}{c}{SNIa}      \\
\hline 
Element & W7   & W70  & WDD1 & WDD2 & WDD3 & CDD1 & CDD2 \\
\hline
Si      & 0.16 & 0.14 & 0.27 & 0.21 & 0.16 & 0.28 & 0.20 \\
Fe      & 0.76 & 0.77 & 0.67 & 0.79 & 0.87 & 0.65 & 0.83 \\
Ni      & 0.13 & 0.10 & 0.04 & 0.06 & 0.07 & 0.04 & 0.06 \\
\hline
        &      &      &      &      &      &      &      \\
\end{tabular}
\begin{tabular}{lcccccc} 
\hline
\hline
\multicolumn{7}{c}{SNcc}               \\
\hline
Element~~~ & \multicolumn{2}{c}{Nomoto etal. (2006)} & \multicolumn{2}{c}{Chieffi \& Limongi (2004)} & \multicolumn{2}{c}{Woosley \& Weaver (1995)} \\ 
\hline
   & Salpeter  &top-heavy & Salpeter&top-heavy & Salpeter &top-heavy  \\
Si & 0.113 & 0.124 & 0.163 & 0.183 &  0.127 & 0.132 \\
Fe & 0.090 & 0.091 & 0.132 & 0.135 &  0.109 &0.106 \\
Ni & 0.005 & 0.005 & 0.014 & 0.013 &  0.014 & 0.013 \\
\hline
\end{tabular} 
 \end{table}