\begin{table}%t1
\par
%\centering
\par
 \caption{Parameter values of the standard model.\label{param}}
 \begin{tabular}[]{llr} \hline \hline
   Parameter & Description & Value \\
   \hline
    $V$                  & modelled volume          & 8 kpc$^3$ \\
  $M_{\rm tot}$            & total system mass        & $10^8~{M}_{\odot}$\\
  $\tau$               & infall decline timescale & $5$ Gyr \\
  $t_{\rm max}$            & time of maximal infall   & $2$ Gyr \\
  $t_{\rm end}$            & age of the system        & $14$ Gyr \\
  $\nu$                & SF efficiency            & $15$ \\
  $\alpha$             & exponent of SF law       & $1.5$ \\
  $M_{{\rm lo}}$    & lower IMF mass limit     & $0.1~{M}_{\odot}$ \\
  $M_{{\rm up}}$    & upper IMF mass limit     & $50~{M}_{\odot}$ \\
  $P_{{\rm SN Ia}}$ & SN~Ia probability        & $6 \times 10^{-3}$ \\
  \hline
 \end{tabular}
 \end{table}