\begin{table}%t4
	%\centering
\caption{\label{tab:geom} Results from geometric model fits.}
			\begin{tabular}{l l l l}
			%\multicolumn{4}{c}{{}}\\
			\hline
			\hline
			Parameters& CPD1 & CPD2 & CPD3 \\
			\hline
			\multicolumn{4}{c}{Face-on monochromatic models}\\
						Uniform ring : & & &\\
		  Radius $r_{\rm in}$ \tiny{(mas)} & 73~$\pm$~4&65~$\pm$~4& 40~$\pm$~4\\
		  Width $w$ \tiny{(mas)} & 22~$\pm$~3& 22~$\pm$~3& 20~$\pm$~3\\
		  $F_{\rm ring}$/$F_{\rm tot}$	&0.28~$\pm$~0.05&0.19~$\pm$~0.05&0.31~$\pm$~0.05\\
 			$\chi^{2}$/d.o.f. &4.2 &3.9 &11.5 \\		 
		  \hline
 			Gaussian ring : & & &\\
 			$r_{\frac{1}{2}\rm{FWHM}}$ \tiny{(mas)} & 87~$\pm$~6 & 91~$\pm$~6 & 23~$\pm$~20\\
			$\chi^{2}$/d.o.f. & 7.8 & 11.5 & 198 \\		 
		  \hline
		 	\multicolumn{4}{c}{Inclined monochromatic models}\\
\par
			Gaussian ring : & & &\\
		  $r_{\frac{1}{2}\rm{FWHM}}$ \tiny{(mas)} & 75~$\pm$~3 & 70~$\pm$~3 & 73~$\pm$~3 \\
		  Pos. Angle \tiny{(deg)} & $-$10~$\pm$~5 & $-$10~$\pm$~5 & $-$21~$\pm$~9 \\	
			Incl. $i$ \tiny{(deg)} & 30~$\pm$~5 & 26~$\pm$~5 & 29 ~$\pm$~5 \\
			$\chi^{2}$/d.o.f. & 4.3 & 1.8 & 14.3 \\		 
		  \hline
		 	\multicolumn{4}{c}{Inclined polychromatic models}\\
\par
		  Blackbody model : & & &\\
		  Radius $r_{f}$ \tiny{(mas)} & 75 & 70 & 73 \\
		  Pos. Angle$_{f}$ \tiny{(deg)} & $-$10 & $-$10 & $-$21 \\	
			Incl.$_{f}$ $i$ \tiny{(deg)} & 30 & 26 & 29 \\
			$T_{\max}$ \tiny{(K)} &1000~$\pm$~200& 1000~$\pm$~200 &1000~$\pm$~200 \\
			$\alpha$ & 2.3~$\pm$~0.1 & 2.3~$\pm$~0.1 & 2.3~$\pm$~0.1 \\
			$\chi^{2}$/d.o.f. & 2.5 & 3.4 & 11.8 \\		
		  \hline\noalign{\smallskip}
		  \multicolumn{4}{l}{$_{f}$: fixed parameter during fitting process.}	  
		\end{tabular}		
\end{table}