\begin{table}%T2
%\centering
\small
\caption{Input parameters of the model runs. $E_{\rm 051}$ is $E_{\rm SN}$ in units of $10^{51}~\rm {erg}$,  $B_{\rm -5}$ is $B_{0}$ in units of $10^{-5}~\rm {G}$, $D_{\rm break}$ is in $\rm{pc}$. In all runs $k=2/3$, $\eta = 6\times10^{-4}$, $\beta=2$, $m_{\rm {ej}}=1.4$. }
\label{tab2}
\begin{tabular}{rrrrrrr} \hline
 \hline 
No.& $n_{\rm e0}$ & $E_{\rm 051}$ & $B_{ -5}$ & $D_{\rm break}$ &  ${\cal M}_{\rm cool}$ & $c_{1}$\\ 
\par
\hline
   1 & 5.0 & 1 & 0.6 & 22 & 37& 5.40 \\ 
   2 & 1.0 & 1 & 0.6 & 46 & 13& 5.40 \\ 
   3 & .5 & 1 & 0.5 & 60 & 10& 4.50 \\
   4 & .1 & 1 & 0.5 & 63 & 3&4.50  \\ 
   5 & .05 & 1 & 0.3 & 88 & 4& 2.70 \\ 
   6 & .005 & 1 & 0.3 & 89 & 1&2.70  \\ 
   7 & .001 & 1 & 0.3 & 88 & 1& 2.70\\
   8 & .5 & 0.1 & 0.5 & 29 & 9& 0.45\\
   9 & .1 & 0.1 & 0.5 & 29 & 3& 0.45\\
   10& .01 & 50 & 0.3 & 323 & 2& 135.0\\
\hline
\end{tabular}
\end{table}