\begin{table}%t2
\caption{Summary of
observational data for the two runs. Lines characteristics are
presented, spectra are shown in Fig. \ref{spectres}. $I_{\rm CO}$ (Col.~8) 
were evaluated from a Gaussian fit of the CO(1--0) and CO(2--1) lines
for detections and hints of detections. $I_{\rm CO}$ upper limits were
evaluated by equation \ref{Ico} for non-detections. A detection is
asserted in one transition line when the peak of the Gaussian fit is
above three times the rms (in 55~km~s$^{-1}$ channels) and a hint of
detection when it is between two and three times the rms. To claim a
cold molecular gas detection, we require a detection in both
transition lines. A possible detection was claimed when was present a
detection in one transition line or a hint of detection in both lines,
unless the line appear clearly in one transition only (Abell 262,
Abell 1068, Zw8193).}
\label{prop2}
%\centering
 \begin{tabular}{lccccccc} 
\hline
\hline 
\multicolumn{1}{c}{Source } & \multicolumn{1}{c}{Line} & \multicolumn{1}{c}{Peak} & \multicolumn{1}{c}{Rms} & \multicolumn{1}{c}{Line} &\multicolumn{1}{c}{Line} & \multicolumn{1}{c}{Line} & \multicolumn{1}{c}{$I_{\rm CO}$} \\ 
\multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{mK} & \multicolumn{1}{c}{mK} & \multicolumn{1}{c}{detection } & \multicolumn{1}{c}{position (km~s$^{-1}$)} & \multicolumn{1}{c}{width (km~s$^{-1}$)} & \multicolumn{1}{c}{K km~s$^{-1}$} \\
\hline 
A85$^{*}$ & CO(1--0) & --& 0.9 & no & -- & 300$^\star$ &$\le$0.35 \\ 
Z235 & CO(1--0) & $1.9\pm0.2$& 0.8 & hint & --$258\pm48$ & $318\pm103$& $0.66\pm0.19$ \\ 
& CO(2--1) & -- & 1.7 & no & -- & 300$^\star$ & $\le$0.65 \\ 
A262$^{*}$ & CO(1--0) & $2.9\pm0.5$ & 0.8 & yes & $31\pm24$ & $346\pm47$& $1.05\pm0.14$ \\ 
A291$^{*}$ & CO(1--0) & -- & 0.9 & no & -- & 300$^\star$ & $\le$0.35 \\ 
A496 & CO(1--0) & $1.5\pm0.5$ & 0.7 & hint & $382\pm39$ & $311\pm73$ & $0.49\pm0.12$ \\ 
& CO(2--1) & $3.0\pm0.7$ & 1.1 & hint & $114\pm29$ & $249\pm52$ & $0.80\pm0.18$ \\ 
RX~J0439+05 & CO(1--0) & -- & 0.72 & no & -- & 300$^\star$ & $\le$0.28 \\ 
PKS~0745-191& CO(1--0) & $2.0\pm0.3$ & 0.6 & yes & $18\pm29$ & $221\pm58$ & $0.47\pm0.11$ \\ 
& CO(2--1) & $11.2\pm0.8$ & 2.1 & yes & --$45\pm15$ & $215\pm41$ & $2.57\pm0.38$ \\ 
A644$^{*}$ & CO(1--0) & $1.1\pm0.4$ & 0.7 & no & --$10\pm55$ & $260\pm77$ & $\le$0.27 \\ 
& CO(2--1) & -- & 3.1 & no & -- & 300$^\star$ & $\le$1.12 \\ 
RX~J0821+07 & CO(1--0) & $8.9\pm0.6$ & 1.1 & yes & --2$\pm$ 8 & $135\pm21$ & $1.28\pm0.16$ \\ 
& CO(2--1) & $9.9\pm1.5$ & 2.9 & yes & $5\pm34$ & $270\pm81$ & $2.86\pm0.60$ \\ 
A646 & CO(1--0) & $1.5\pm0.1$ & 0.5 & yes & $105\pm39$ & $376\pm121$& $0.62\pm0.15$ \\
& CO(2--1) & $1.9\pm1.0$ & 1.6 & no & $46\pm54$ & $346\pm123$& $\le$0.62 \\ 
A780 & CO(1--0) & $1.8\pm0.5$ & 0.6 & yes & $219\pm31$ & $439\pm68$& $0.80\pm0.11$ \\ 
& CO(2--1) & -- & 1.8 & no & -- & 300$^\star$ & $\le$0.69 \\ 
A978 & CO(1--0) & $1.8\pm0.7$ & 1.0 & no & --$128\pm49$ & $221\pm87$ & $\le$0.39 \\ 
& CO(2--1) & -- & 2.1 & no & -- & 300$^\star$ & $\le$0.80 \\ 
A1068$^{*}$ & CO(1--0) & $10.1\pm0.3$ & 0.5 & yes & --$45\pm4$ & $249\pm10$ & $2.66\pm0.1$ \\ 
A1668 & CO(1--0) & -- & 1.2 & no & -- & 300$^\star$ & $\le$0.46 \\ 
& CO(2--1) & $2.4\pm1.6$& 1.7 & no & $9\pm64$ & $281\pm125$& $\le$0.65 \\ 
%A1704$^{*}$ & CO(1--0) & - & 1.0 & no & - & 300$^\star$ & $\le$0.39 \\ 
A1795 & CO(1--0) & $3.4\pm0.7$ & 0.9 & yes & --$190\pm28$ & $405\pm56$ &  $1.47\pm0.19$ \\
& CO(2--1) & $6.1\pm1.0$ & 1.8 & yes &  --$128\pm31$ & $500\pm65$ & $3.26\pm0.39$ \\ 
\hline 
\end{tabular} 
 \end{table}