\begin{table}%t7
 \caption{\label{tab:resolvingWWCha}Resolving \object{WW~Cha}. Point-source versus Gaussian fluxes and resulting Gaussian source size for  WW~Cha at 7 and 16~mm.}
%\centerline
{\small 	\begin{tabular}{lcccccccc}
 \hline\hline\noalign{\smallskip}
Obs. date & Wavelength & Flux (p)$^{a}$ & Flux (G)$^{a}$ & rms$^{b}$		& Gaussian size & Beam size$^{c}$	& Dust opacity$^{d}$ & Disc mass$^{e}$	\\
& (mm)& (mJy)	& (mJy)	&(mJy/beam)	& (arcsec)&(arcsec)		& (cm$^2$~g$^{-1}$)		& ($M_\odot$)		\\
 \hline
  24--28 August 2005$^{f}$& 3.3& $25.9\pm 1.0$&$33.1\pm 2.1$&$1.2$			&$1.32$ &$2.5\times2.2$ & 2.86				& 0.024 \\ 
 31 March 2008  & 7.0 & $5.1\pm0.19$ &$5.79\pm0.38$ &$0.231$		&$2.0$ &$5.8\times5.3$ & 1.94  & 0.027 \\ 
31 March 2008& 7.3	& $5.2\pm0.17$	&$6.46\pm0.38$	&$0.194$		&$3.4$&$6.1\times5.6$& 1.90& 0.033\\ 
2 November 2007	&15.4&$0.55\pm0.20$	&$1.65\pm0.55$&$0.125$&$2.1$&$1.9\times1.3$ 	& 1.29& 0.055\\
2 November 2007			&16.2&$0.48\pm0.12$	&$1.20\pm0.26$&$0.089$&$1.2$&$2.0\times1.4$& 1.26& 0.045\\
 \hline
 \end{tabular}}
 \medskip
$^{a}$~Continuum fluxes are from point-source (p) and circular Gaussian~(G) fits in the ($u, v$) plane; $^{b}$~rms calculated from the cleaned image; $^{c}$ restored beam, using natural weighting; $^{d}$ using the opacity law of \citet{beckwith:1990} $\kappa_\nu = 10$ ($\nu/10^{12}$~Hz)$^\beta$, with $\beta = 0.52$; $^{e}$~assuming a gas-to-dust ratio of~100; $^{f}$~from \citet{lommen:2007}.
\end{table}