\begin{table}%t1
  \caption{\label{i19343_parm}Model parameters of our radiative transfer calculations.}
%\centerline
 {    \begin{tabular}{lll}
  \hline
  \hline
  \noalign{\smallskip}
  Parameters        & Adopted values           & Comments\tablefootmark{1} \\
  \hline
  \multicolumn{3}{c}{central star} \\
  $T_\star$         & 6500~K                   & \tablefootmark{2}         \\
  $L_\star$         & 7000~$L_{\odot}$          & adopted\tablefootmark{3}  \\
  $d$               & 3.0~kpc                  & \tablefootmark{4}         \\
  $R_\star$         & $1.3\times10^{12}$~cm    & calculated   \\
  \hline
  \multicolumn{3}{c}{disk} \\
  $R_{\rm in}$   & 30~$R_\star$(=9~AU)     & 30--50     \\
  $R_{\rm disk}$ & 4500~AU                  & 3000--4500 \\
  $H$               & 0.3                      & 0.3--0.4   \\
  $\tau_{\rm 2.0}$ & 30                     & adopted\tablefootmark{3}  \\
  $M_{\rm disk}$ & 0.15~$M_{\odot}$          & \tablefootmark{5}         \\
  $a_{\max}$  & 1000.0~$\mu$m            & $\ga$10.0    \\
  $f_{\rm m}$    & 0.2                      & adopted\tablefootmark{3}  \\
  \hline
  \multicolumn{3}{c}{superwind and AGB shell} \\
  $R_{\rm sw}$   & 7\farcs5                 & adopted\tablefootmark{6}  \\
  $\alpha$          & 1.2                      & adopted\tablefootmark{6}  \\
  $\beta$           & 1.7                      & adopted\tablefootmark{6}  \\
  $\gamma$          & 0.7                      & adopted\tablefootmark{6}  \\
  $\epsilon_{\rm in}$  & 0.01               & adopted\tablefootmark{6}  \\
  $\epsilon_{\rm rim}$ & 0.5                & adopted\tablefootmark{6}  \\
  $R_{\rm out}$  & 30\arcsec                & 30--60     \\
  $a_{\max}$  & 0.5~$\mu$m               & adopted\tablefootmark{7}  \\
  $f_{\rm m}$    & 0.2                      & adopted\tablefootmark{3}  \\
  $M_{\rm env}$  & 4~$M_{\odot}$             & 4--6       \\
  $\dot{M}$         & \multicolumn{2}{l}{$7.5\times 10^{-6}[v_{\exp}$ km~s$^{-1}]~M_{\odot}$~yr$^{-{\rm 1, 8}}$} \\
  \hline
  \end{tabular}}
  \smallskip
\par
  \tablefoottext{1}{Ranges give the uncertainty of the corresponding model parameters;}
  \tablefoottext{2}{\cite{arrieta05};} 
  \tablefoottext{3}{based on comparison of the SED;}
  \tablefoottext{4}{\cite{ck77,eh89};} 
  \tablefoottext{5}{with assumption of a $a_{\max}=1000.0~\mu$m  grain model;} 
  \tablefoottext{6}{based on comparison of the intensity image;} 
  \tablefoottext{7}{based on  comparison of the polarization image;} 
  \tablefoottext{8}{calculated.}
\end{table}