\begin{table} %t3 %online
\caption{Antenna temperatures and noise per channel width 
for the T~Tauri stars \label{moldisks:results1}}
\par
%\centerline
{
\begin{tabular}{lllll}
\hline
\hline
\noalign{\smallskip}
            & \multicolumn{1}{c}{Telescope} & \multicolumn{1}{c}{d$v^a$} & \multicolumn{1}{c}{$T_{\rm A}^*$} &  \multicolumn{1}{c}{$\delta T_{\rm ther}^a$}\\
            &             &       \multicolumn{1}{c}{(km s$^{-1}$)} & \multicolumn{1}{c}{(K)} & \multicolumn{1}{c}{(K)}\\
\hline
\noalign{\smallskip}
\multicolumn{5}{c}{\object{LkCa~15}}\\
\hline
\noalign{\smallskip}
$^{12}$CO $J\!=\!2\!\rightarrow\!1$                  & IRAM30 m &       0.10  &\phantom{$<$}0.402 & 0.159 \\ 
$^{12}$CO $J\!=\!3\!\rightarrow\!2$                  & JCMT    &       0.13  &\phantom{$<$}0.258  & 0.051 \\  
$^{13}$CO $J\!=\!3\!\rightarrow\!2$                  & JCMT    &       0.28  &\phantom{$<$}0.074  & 0.026 \\      
C$^{18}$O $J\!=\!2\!\rightarrow\!1$                  & JCMT    &       0.21  & $<$0.084 (2$\sigma$) & 0.042 \\    
C$^{18}$O $J\!=\!3\!\rightarrow\!2$                  & JCMT    &       0.14  & $<$0.054 (2$\sigma$)  & 0.027 \\     
HCO$^+$ $J\!=\!4\!\rightarrow\!3$                    & JCMT    &       0.26  &\phantom{$<$}0.055  & 0.018 \\     
H$^{13}$CO$^+$ $J\!=\!4\!\rightarrow\!3$             & JCMT    &      0.13  &  $<$0.078 (2$\sigma$)  & 0.039 \\  
DCO$^+$ $J\!=\!5\!\rightarrow\!4$                    & JCMT    &       0.13  &  $<$0.048 (2$\sigma$)  & 0.024 \\     
CN $J\!=\!3\frac{7}{2}\!\rightarrow\!2\frac{5}{2}$   & JCMT    &       0.27  &\phantom{$<$}0.070  & 0.018 \\        
HCN $J\!=\!4\!\rightarrow\!3$                        & JCMT    &       0.26  &\phantom{$<$}0.051  & 0.022 \\     
CS $J\!=\!7\!\rightarrow\!6$                         & JCMT    &       0.27  &  $<$0.038 (2$\sigma$)  & 0.019 \\     
H$_{\rm 2}$CO $J\!=\!2_{12}\!\rightarrow\!1_{11}$    & IRAM30 m &       0.16  &\phantom{$<$}0.021 & 0.008 \\     
H$_{\rm 2}$CO $J\!=\!3_{03}\!\rightarrow\!2_{02}$    & IRAM30 m &       0.10  &\phantom{$<$}0.025 & 0.021 \\     
H$_{\rm 2}$CO $J\!=\!3_{22}\!\rightarrow\!2_{21}$    & IRAM30 m &       0.10  &   $<$0.036 (2$\sigma$) & 0.018 \\     
H$_{\rm 2}$CO $J\!=\!3_{12}\!\rightarrow\!2_{11}$    & IRAM30 m &       0.10  &\phantom{$<$}0.066 & 0.016 \\     
H$_{\rm 2}$CO $J\!=\!5_{15}\!\rightarrow\!4_{14}$    & JCMT    &       0.27  &   \phantom{$<$}0.030   & 0.016 \\     
CH$_{\rm 3}$OH $J\!=\!2_K\!\rightarrow\!1_K$            & IRAM30 m &       0.12  &   $<$0.014 (2$\sigma$) & 0.007 \\     
CH$_{\rm 3}$OH $J\!=\!4_{\rm 2}\!\rightarrow\!3_1$ E$^+$& IRAM30 m &       0.11  &   $<$0.036 (2$\sigma$) & 0.018 \\     
CH$_{\rm 3}$OH $J\!=\!5_K\!\rightarrow\!4_K$            & IRAM30 m &       0.09  &   $<$0.036 (2$\sigma$) & 0.018 \\     
N$_{\rm 2}$H$^+$  $J\!=\!4\!\rightarrow\!3$          & JCMT    &       0.12  &  $<$0.454 (2$\sigma$)  & 0.227 \\     
H$_{\rm 2}$D$^+$  $J\!=\!1_{10}\!\rightarrow\!1_{11}$& JCMT    &       0.12  &  $<$0.372 (2$\sigma$)  & 0.186 \\                              \hline
\noalign{\smallskip}
\multicolumn{5}{c}{\object{TW~Hya}}\\
\hline
\noalign{\smallskip}
$^{12}$CO $J\!=\!3\!\rightarrow\!2^b$               & JCMT &        0.13   &\phantom{$<$}1.853 & 0.066 \\     
$^{12}$CO $J\!=\!3\!\rightarrow\!2^c$               & JCMT &        0.13   &\phantom{$<$}1.679 & 0.241 \\     
$^{13}$CO $J\!=\!3\!\rightarrow\!2$               & JCMT &        0.14   &\phantom{$<$}0.185 & 0.046 \\     
HCO$^+$ $J\!=\!4\!\rightarrow\!3^b$               & JCMT &        0.13   &\phantom{$<$}0.656 & 0.230 \\     
HCO$^+$ $J\!=\!4\!\rightarrow\!3^c$               & JCMT &        0.13   &\phantom{$<$}1.197 & 0.087 \\     
H$^{13}$CO$^+$ $J\!=\!4\!\rightarrow\!3$          & JCMT &        0.13   &\phantom{$<$}0.050 & 0.016 \\     
DCO$^+$ $J\!=\!5\!\rightarrow\!4$                 & JCMT &        0.13   &\phantom{$<$}0.104 & 0.023 \\     
CN $J\!=\!3\frac{7}{2}\!\rightarrow\!2\frac{5}{2}$& JCMT &        0.14   &\phantom{$<$}0.597 & 0.075 \\     
HCN $J\!=\!4\!\rightarrow\!3$                     & JCMT &        0.13   &\phantom{$<$}0.369 & 0.080 \\     
H$^{13}$CN $J\!=\!4\!\rightarrow\!3$              & JCMT &        0.13   &  $<$0.056 (2$\sigma$) & 0.028 \\     
HNC $J\!=\!4\!\rightarrow\!3$                     & JCMT &        0.13   &  $<$0.089 (2$\sigma$) & 0.049 \\     
DCN $J\!=\!5\!\rightarrow\!4$                     & JCMT &        0.13   &  $<$0.068 (2$\sigma$) & 0.034 \\     
H$_{\rm 2}$CO $J\!=\!3_{12}\!\rightarrow\!2_{11}$ & JCMT &        0.10   &  $<$0.088 (2$\sigma$) & 0.044 \\     
H$_{\rm 2}$CO $J\!=\!5_{15}\!\rightarrow\!4_{14}$ & JCMT &        0.13   &  $<$0.074 (2$\sigma$) & 0.037 \\     
CH$_{\rm 3}$OH $J\!=\!7_K\!\rightarrow\!6_K$      & JCMT &        0.14   &  $<$0.046 (2$\sigma$) & 0.023 \\     
N$_{\rm 2}$H$^+$  $J\!=\!4\!\rightarrow\!3$       & JCMT &        0.12   &  $<$0.710 (2$\sigma$) & 0.355 \\     
H$_{\rm 2}$D$^+$  $J\!=\!1_{10}\!\rightarrow\!1_{11}$  & JCMT &        0.12   &  $<$0.596 (2$\sigma$) & 0.298 \\     
SO $J\!=\!8_8\!\rightarrow\!7_7$                  & JCMT &  0.13 & $<$0.202 (2$\sigma$) & 0.101\\ 
\hline
\end{tabular}}
\smallskip
$^a$ d$v$ is the spectral resolution of the data in~km~s$^{-1}$; $T_{\rm A}^*$ is the antenna
temperature (not corrected for beam efficiency) and $\delta T_{\rm
ther}$ is the thermal noise per d$v$ channel. $^b$ Data taken in November 1999. $^c$ Data taken in May 2004. 
\end{table}