\begin{table}%t3
\caption{\label{tab:mhd}Parameters of the 3D MHD model.}
%\centering
\small
\begin{tabular}{ll}
\hline
\hline
%& \\[-8pt]
ISM density &  0.05 cm$^{-3}$ \\
Ambient magnetic field &  $30~\mu$G \\
Explosion energy  &  $1.3 \times 10^{51}$ erg \\
Mass of the ejecta  &  $1.4~M_{\odot}$ \\
\hline
%& \\[-8pt]
Shock speed after 1000 yr & 4750 km s$^{-1}$ \\
Shell radius after 1000 yr & 8.65 pc \\
\hline
\end{tabular}
\end{table}