\begin{table}%t1 %\centering \par \caption{\label{tab:rvs}RV measurements of Cha~H$\alpha$~8.} \begin{tabular}{llll} \hline \hline\noalign{\smallskip} Date & HJD & RV & ~$\sigma_{\rm RV}$\\ & & [km~s$^{-1}$] & [km~s$^{-1}$] \\ \hline 2000 04 05 & 2451639.61095 & 14.591 & 0.400 \\ % J2006, P65 2000 04 24 & 2451658.72597 & 15.177 & 0.400 \\ % -''- 2002 03 06 & 2452339.68965 & 17.499\tablefootmark{a} & 0.193 \\ % J2006, P68 2002 03 22 & 2452355.65264 & 17.355\tablefootmark{a} & 0.150 \\ % -''- 2002 04 16 & 2452380.61646 & 17.651\tablefootmark{a} & 0.150 \\ % 2002 04 19 & 2452383.57565 & 17.451\tablefootmark{a} & 0.379 \\ % 2005 03 21 & 2453450.62080 & 14.791\tablefootmark{a} & 0.150 \\ % J&M2007, P75 2006 04 10 & 2453835.65109 & 16.035 & 0.150 \\ % J&M2007, P77 2006 07 09 & 2453926.50137 & 16.403 & 0.150 \\ % -''- 2007 03 15 & 2454174.66101 & 17.358\tablefootmark{a} & 0.402 \\ % J&M2007, P78 DDT 2007 03 22 & 2454181.69756 & 17.563\tablefootmark{a} & 0.333 \\ % -''- \hline 2007 06 08 & 2454260.49431 & 17.449\tablefootmark{a} & 0.182 \\ % P79 2007 07 21 & 2454302.54665 & 17.572\tablefootmark{a} & 0.150 \\ % P79 2008 01 02 & 2454467.82631 & 17.573\tablefootmark{a} & 0.150 \\ % P80 2008 07 09 & 2454657.48163 & 18.190\tablefootmark{a} & 0.150 \\ % P82 (carry under to P81) 2009 01 02 & 2454833.80683 & 18.780\tablefootmark{a} & 0.155 \\ % P82 2010 01 09 & 2455205.74852 & 13.900\tablefootmark{a} & 0.150 \\ % P85 (carry under to P84) 2010 03 01 & 2455257.26535 & 14.533\tablefootmark{a} & 0.203 \\ % - '' - \hline \end{tabular} \tablefoot{Listed are new RV data (bottom panel) and previous RV measurements (top panel), which have been re-processed for this work. HJD is given at the middle of the exposure; $\sigma_{\rm RV}$ is the estimated error in the relative RVs. An additional error of about 400~m~s$^{-1}$ has to be taken into account for the absolute RVs. \tablefoottext{a}{RV value is the average of two (three in the case of 2010 03 01) single consecutive measurements.}} \end{table}