\begin{table}%t3
\caption{Parameters as used in our parameter studies.}\label{tabparstd}
%\centering
\small
\begin{tabular}{l l l l}
\hline\hline
Torus & Model value & Clouds & Model value \\ \hline
\noalign{\smallskip}
$L_{\rm AGN}$ & $2\times~L_{12}$ & $R_{{\rm cl}}(r)$ & $0.02~{\rm pc}\times \left(\frac{r}{r_{\rm subl}}\right)^{1.5}$ \\
$r_{\rm subl}$ & $0.8~{\rm pc}$ & $N_0$ & 8 \\
$d$ & 10~{\rm Mpc} & $\tau_{{\rm cl}}$ & $40\times\left(\frac{r}{10~r_{\rm subl}}\right)^{-0.8}$ \\
$\eta_r(r)\propto r^{-a}$ & $a=1.5$ & & \\
$H(r)$ & $0.6~r_{\rm subl}\times \left(\frac{r}{r_{\rm subl}}\right)$ & dust & see Sect.~\ref{dust} \\
$r_{\rm o}$ & $70~r_{\rm subl}$ & & \\ 
\hline
\end{tabular}
\end{table}