\begin{table}%t5
		\caption{\label{tab.model} 
	Parameters adjusted for modelling (see Sect.~\ref{sect.modelparams}). 
	$T_\star$: stellar temperature; $R_\star$: stellar radius; 
	$r_{\rm i}, r_{\rm o}$: inner respectively outer radius of dust shell; 
	$\tau_{11}$: optical depth of shell at $11~{\rm \mu m}$. 
	In all cases, an accelerated dust density profile was used. }
	%\centering
\par
	\begin{tabular}{cccccc}
	\hline\hline
	Object  &  $T_\star$  &  $R_\star$  &  $r_{\rm i}/R_\star$  &  $r_{\rm o}/R_\star$  &  $\tau_{11}$\\
	        &   (K)   &  (mas)  &  &  & \\
	\hline 
	$\alpha$~Ori 	& 3640 & 21.8  & 45.9 &   48.2 & 0.0065\\
	SW~Vir 		& 2800 &  8.65 & 15.0 & 1000.0 & 0.045 \\
	R~Leo  		& 2500 & 14.9  &  3.5 &  140.0 & 0.1   \\
	\hline
	\end{tabular} 
	\end{table}