\begin{table}%t1
\caption{\label{table:1} Model parameters$^{{\rm a}}$}
%\centerline
 {\small \begin{tabular}{ccccccccc}
\hline\hline\noalign{\smallskip}
Model & $v_{{\rm j,0}}$ &  $\dot{M}_{{\rm w}}$ &  $x_{{\rm j}}~^{b}$ & $y_{{\rm j}}~^{c}$ &
$\delta v$ & $\tau_{{\rm j}}$ & $\alpha_{{\rm y}}$ & $\epsilon$ \\  
& $[{\rm km~s^{-1}}]$ & $[{\rm \it M}_{\odot}~{\rm yr}^{-1}]$ & 
$[{\rm cm}]$ & $[{\rm cm}]$ &$[{\rm km~s^{-1}}]$ & 
[yr] & $[\degr]$ &  \\
\hline\noalign{\smallskip}
M1 & $200$ &  $4.5\times 10^{-7}$ &  $7 \times 10^{16}$   &  $0$                 & $0$  & --    &   $0$    & $3.85$\\
M2 & $100$ &    $10^{-6}$         &  $7\times 10^{16}$    &  $0$                 & $0$  & --    &  $0$     & $0.91$\\
M3 & $100$ &    $10^{-6}$         &  $7\times 10^{16}$    &  $0$                  & $50$ & $10$ &   $0$    & $0.91$\\
M4 & $200$ &  $4.5\times 10^{-7}$ &  $7.53\times 10^{16}$ & $-5.6\times 10^{16}$  & $0$  & --    &  $-9.6$  & $3.85$\\
M5 & $100$ &    $10^{-6}$         &  $9.54\times 10^{16}$ & $-6.13\times 10^{16}$ & $0$  & --    & $-35.96$ & $0.91$\\
M6 & $100$ &    $10^{-6}$         &  $9.54\times 10^{16}$ & $-6.13\times 10^{16}$ & $50$ & $10$ & $-35.96$ & $0.91$\\
\hline
\end{tabular}}
\medskip
 $^{{\rm a}}$  In all the models the mass loos rate per side
  of the jet/counterjet is $\dot{M}_{{\rm j}}=10^{-7}~{\rm \it M}_\odot~{\rm yr^{-1}}$, and the wind terminal velocity is $v_{{\rm w}}=2~250~{\rm km~s^{-1}}$;  $^{{\rm b,c}}$  measured from the location of the wind source.
\end{table}