\begin{table} %t2
\caption{The estimated ejected oxygen mass.} \label{tab02}
%\centerline
{
\begin{tabular}{cccc}
\hline \hline
SN  & SN&$M_{\rm Ox}$ &References  \\
name &type &($M_{\odot})$ & \\
\hline
1987A& II&1.5-2& 1, 2\\
1984L& Ib&$\sim$0.3$^\star$ & 3 \\
1985F& Ib&$\sim$0.3$^\star$& 3 \\
1987M& Ic&0.4$^\star$ & 4 \\
1990I& Ib&0.7--1.35$^\star$  &this work \\
1993J& IIb & $\sim$0.5 & 5  \\
1996N& Ib & 0.1--0.3$^\star$ &6 \\
\hline 
\end{tabular}}
\smallskip
Refs.: 1- Fransson et~al. (\cite{Fran2}); 2- Chugai (\cite{chug4}); 3- Schlegel \& Kirshner (\cite{Schl89}); 4- Filippenko et~al. (\cite{Fil90}); 5- Houck \& Fransson (\cite{Hou96}); \mbox{6- Sollerman et~al. (\cite{Soll98})}.  
\\$^\star$ Estimated adopting the same method (i.e. using Eq. (1)).\\ 
\end{table}