\begin{table}%T2
\caption{\label{tab_mod}Summary of the initial physical parameters characterizing the simulations (see text for details).}
\small%\centering
\par
\begin{tabular}{lccccccc}
\hline
\hline\noalign{\smallskip}
Model       & $\Delta t$ & $\nu$  & $M$    & $v_{\rm j}$   & $T_{\rm j}$ & $n_{\rm a}$  \\
            & [yr]         &        &        & [km s$^{-1}$] & [K]  & [cm$^{-3}$] \\
\hline\noalign{\smallskip}
LJ0.5-M1000 & $0.5$      & $10 $  & $1000$ & 10--4680   & $10^{4}$    & $5000$ \\
LJ2-M1000   & $2  $      & $10 $  & $1000$ & 10--4680   & $10^{4}$    & $5000$ \\
LJ8-M1000   & $8  $      & $10 $  & $1000$ & 10--4680   & $10^{4}$    & $5000$ \\	  
LJ2-M100    & $2  $      & $10 $  & $100 $ & 10--470   & $10^{4}$    & $5000$ \\
LJ2-M300    & $2  $      & $10 $  & $300 $ & 10--1400   & $10^{4}$    & $5000$ \\
LJ2-M500    & $2  $      & $10 $  & $500 $ & 10--2340   & $10^{4}$    & $5000$ \\
HJ2-M300    & $2  $      & $0.1$  & $300 $ & 10--1400   & $10^{2}$    & $50  $ \\
HJ2-M500    & $2  $      & $0.1$  & $500 $ & 10--2340   & $10^{2}$	 & $50  $ \\
HJ2-M1000   & $2  $      & $0.1$  & $1000$ & 10--4680   & $10^{2}$ 	 & $50  $ \\
\hline
\end{tabular}
\tablefoot{$\Delta t$ is the time interval between two consecutive blobs, $\nu$ is the ambient-to-jet density contrast, $M$ is the Mach number of the first blob, $v_{\rm j}$ is the velocity of each ejected blob (here we indicate the range of values randomly generated by our model), $T_{\rm j}$ is the initial jet temperature, and $n_{\rm a}$ is the ambient density.}
\end{table}