\begin{table}%t3
\par
%\centering
\par
\caption{\label{tab:pb8-parameters}Parameters of PB~8.}
\begin{tabular}{lrl}
\hline\hline\noalign{\smallskip}
$T_*$                   & $52\pm 2$               & ${\rm kK}$\\
$v_\infty$              & $1000\pm 100$           & ${\rm km}~{\rm s}^{-1}$\\
$\log \dot{M}$          & $\rm -7.07^{+0.17}_{-0.13}$ & $M_\odot~{\rm a}^{-1}$\\
$\log R_{\rm t}$       & $\rm 1.43_{-0.08}^{+0.12}$  & $R_\odot $\\
$E_{B-V}$ & $0.41 \pm 0.01$         & ${\rm mag}$\\
$d(L_*=6000~{L}_\odot)$& $4.2 \pm 0.2$      & ${\rm kpc}$ \\
$v_{\rm rad}$     & 12                  & ${\rm km}~ {\rm s}^{-1}$\\
H                  & $\rm 40_{-10}^{+20}$    & \% mass fraction      \\
He                 & $\rm 55_{-22}^{+11}$    & \% mass fraction      \\
C                  & $\rm 1.3_{-0.3}^{+0.7}$ & \% mass fraction      \\
N                  & $\rm 2.0_{-0.5}^{+1.0}$ & \% mass fraction      \\
O                  & $\rm 1.3_{-0.3}^{+0.7}$ & \% mass fraction      \\
Fe                 & $1.6\times 10^{-3}$ & \% mass fraction      \\
P                  & $5.2\times 10^{-6}$ & \% mass fraction      \\
Si                 & $3.2\times 10^{-4}$ & \% mass fraction      \\
\hline
\end{tabular}
\end{table}