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\begin{deluxetable*}{lrrrrrrr} 
\tabletypesize{\footnotesize} 
\centering 
\tablewidth{500pt} 
\tablecaption{Gas Properties \label{tab-gas}} 
\tablecolumns{8}  
\tablehead{ 
 \colhead{Source} 
&\colhead{$F_{\rm 13CO}$} 
&\colhead{$E_{\rm 13CO}$} 
&\colhead{$F_{\rm C18O}$} 
&\colhead{$E_{\rm C18O}$} 
&\colhead{$M_{\rm gas}$} 
&\colhead{$M_{\rm gas,min}$} 
&\colhead{$M_{\rm gas,max}$} \\ 
 \colhead{} 
&\colhead{(mJy~km~s$^{-1}$)} 
&\colhead{(mJy~km~s$^{-1}$)} 
&\colhead{(mJy~km~s$^{-1}$)} 
&\colhead{(mJy~km~s$^{-1}$)} 
&\colhead{($M_{\rm Jup}$)} 
&\colhead{($M_{\rm Jup}$)} 
&\colhead{($M_{\rm Jup}$)} 
} 
\startdata 
Sz 65 & 971 & 128 & 415 & 105 & 0.7 & $0.3$ & $10.5$ \\
Sz 66 & 153 & 45 & $<111$ & ... & 0.2 & ... & $1.0$ \\
J15430131-3409153 & $<162$ & ... & $<192$ & ... & $<1.0$ & ... & ... \\
J15430227-3444059 & $<138$ & ... & $<171$ & ... & $<1.0$ & ... & ... \\
J15445789-3423392 & $<84$ & ... & $<102$ & ... & $<0.3$ & ... & ... \\
J15450634-3417378 & 356 & 111 & $<174$ & ... & 0.1 & ... & $3.1$ \\
J15450887-3417333 & 759 & 87 & 573 & 145 & 3.2 & $1.0$ & $10.5$ \\
Sz 68 & 915 & 133 & 444 & 132 & 0.8 & $0.3$ & $10.5$ \\
Sz 69 & 466 & 74 & $<102$ & ... & 0.2 & ... & $3.1$ \\
Sz 71 & 1298 & 107 & $<111$ & ... & 0.3 & ... & $1.0$
\enddata 
\tablenotetext{}{(This table is available in its entirety in machine-readible form.)} 
\end{deluxetable*} 
\capstartfalse