\begin{table}%t1
  \caption{\label{tab1}Fixed physical quantities in our model.}
  \small%\centerline
{
  \begin{tabular}{ll}
  \hline  \hline
 Parameter and unit  &  Value \\
  \hline\noalign{\smallskip}
$a$: orbital semi-major axis [cm] & $5\times10^{12}$ $^{a}$\\
$P$: orbital period [d] & 26.4960 $^{b}$\\
$e$: eccentricity & 0.72 $^{c}$ \\
$i$: inclination angle [$^{\circ}$] & 30 $^{c}$\\
$M_{\rm x}$: compact object mass [$M_{\odot}$] & 2.5 $^{c}$\\
$M_{\star}$: stellar mass [$M_{\odot}$]& 12 $^{c}$\\
$L_{\star}$: stellar bolometric luminosity [erg~s$^{-1}$] &$10^{38}$ $^{d}$\\
$T_{\star}$: stellar surface temperature [K] & $2.6\times10^4$ $^{d}$\\
$R_{\star}$: stellar radius [$R_{\odot}$] & 10 $^{e}$ \\
$L_{\rm CD}$: CD~bolometric luminosity [erg~s$^{-1}$] &$10^{37}$ $^{d}$\\
$T_{\rm CD}$: CD~surface temperature [K] & $1.7\times10^4$ $^{e}$\\
$\dot{m}_{\rm w}$: stellar mass loss rate [$M_{\odot}$~yr$^{-1}$] & $\sim$$10^{-7}$ $^{e}$\\
$V_{\rm R}$: initial CD~radial speed [cm~s$^{-1}$] & $3\times 10^5$ $^{e}$\\
$V_{\phi 0}$: initial CD~azimuthal speed [cm~s$^{-1}$] & $1.13\times 10^7/\sin i$ $^{c}$\\
$\rho_{\rm CD}$: initial CD~density [g~cm$^{-3}$] & $10^{-11}$ $^{e}$\\
$V_{\rm jet}$: convection speed [cm~s$^{-1}$] & 10$^{10}$ $^{f}$ \\
$E_{\rm min}$: electron minimum energy [MeV] & 1 \\
  \noalign{\smallskip}\hline
  \end{tabular}}
\smallskip
{$^{a}$ Taylor et~al.~(\cite{taylor92}), 
$^{b}$ Gregory (\cite{gregory02a}), 
$^{c}$ Casares et~al.~(\cite{casares05}), $^{d}$~Hutchings \& Crampton~(\cite{hutchings81}), 
$^{e}$ MP95, $^{f}$ Massi et~al. (\cite{massi01,massi04b}). 
}
\end{table}