\begin{table}%t1
%\centering
\par
\caption{\label{tab:jump}Pre-shock, shock front, and excursion
($\equiv$post-shock) gas temperature and number density as a
function of position in the envelope and shock strengths. $M$ is the
Mach number (=$v_{\rm sh}$/$v_{\rm esc}$) associated with each shock speed.}\small
\begin{tabular}{cccccccccc}
\hline
\hline 
Star & Position & Shock vel. & $M$
&\multicolumn{2}{c}{Pre-shock} & \multicolumn{2}{c}{
Shock front} & \multicolumn{2}{c}{Start of excursion}  \\
 &($R_\star$) & (km s$^{-1}$) &{\rm } &$T_0$ (K) & $n_0$ (cm$^{-3}$) & $T$ (K) & $n$ (cm$^{-3}$)
& $T$ (K) & $n$ (cm$^{-3}$) \\
\hline
      & 1.0 & 25.0 &  7.41 & 2600.0 & 3.62 (15) & 30~206 & 1.99 (16) & 6363 & 7.85 (16) \\
      & 1.5 & 20.4 &  6.84 & 2038.5 & 1.46 (14) & 20~464 & 7.91 (14) & 4746 & 2.80 (15) \\
TX Cam& 2.0 & 17.8 &  6.45 & 1715.4 & 2.01 (13) & 15~490 & 1.07 (14) & 3875 & 3.56 (14) \\
      & 2.5 & 15.8 &  6.17 & 1500.4 & 5.01 (12) & 12~517 & 2.65 (13) & 3300 & 8.32 (13) \\
      & 3.0 & 14.4 &  5.95 & 1344.9 & 1.76 (12) & 10~522 & 9.25 (12) & 2889 & 2.76 (13) \\
\hline
\end{tabular}
\end{table}