\begin{table}%t2
\caption{\label{ram_pressure_table}The properties of the ram pressure and the surrounding
gas of the simulations.}
\small%\centerline
 {
\begin{tabular}{c | c c c c}
\hline \hline
 & $v_{\rm{rel}}$ & $\rho_{\rm{sur}}$ & particle & $p$ \\ 
 run & [km~s$^{-1}$] & [g/cm$^{3}$] & number & [dyn cm$^{-2}$] \\
\hline 
&&&& \\[-8pt]
1 & 1000 & $1\times10^{-28}$ & $1.08\times10^{6}$ & $1.00\times10^{-12}$ \\ 
2 & 1000 & $5\times10^{-28}$ & $5.40\times10^{6}$ & $5.00\times10^{-12}$ \\ 
3 & 1000 & $1\times10^{-27}$ & $1.08\times10^{7}$ & $1.00\times10^{-11}$ \\ 
4 & 1000 & $5\times10^{-27}$ & $5.40\times10^{7}$ & $5.00\times10^{-11}$ \\
5 & 500 & $1\times10^{-28}$ & $1.08\times10^{6}$ & $2.50\times10^{-13}$ \\
6 & 500 & $5\times10^{-28}$ & $5.40\times10^{6}$ & $1.25\times10^{-12}$ \\
7 & 500 & $1\times10^{-27}$ & $1.08\times10^{7}$ & $2.50\times10^{-12}$ \\
8 & 500 & $5\times10^{-27}$ & $5.40\times10^{7}$ & $1.25\times10^{-11}$ \\
9 & 100 & $1\times10^{-28}$ & $1.08\times10^{6}$ & $1.00\times10^{-14}$ \\
10 & 100 & $5\times10^{-28}$ & $5.40\times10^{6}$ & $5.00\times10^{-14}$ \\
11 & 100 & $1\times10^{-27}$ & $1.08\times10^{7}$ & $1.00\times10^{-13}$ \\
12 & 100 & $5\times10^{-27}$ & $5.40\times10^{7}$ & $5.00\times10^{-13}$\\
\hline
\end{tabular}}
\medskip
$v_{\rm{rel}}$: relative velocity between the surrounding gas and the galaxy; $\rho_{\rm{sur}}$: surrounding gas density; $p$: ram pressure on the galaxy.
\end{table}