\begin{table}%t1 \par \caption{\label{tab:spec}Properties of the observed spectra of the four \corot\ targets. } \small %\centering \par \begin{tabular}{r@{}l l|rccrc} \hline\hline & & Spectro- & & & & & \vsini \\ HD& /Sp. & graph & \multicolumn{1}{c}{$R$} & Range [\AA] & $S/N$ & $S/N_{42}$ & [\kms] \\ \hline 49933&/H-A & \harps & 115~000 & 4050--6850 & 400 & 740 & 10 \\ $ $ &/H-C & \harps & 115~000 & 4050--6850 & 430 & 790 & $-$ \\ \hline 175726&/N & \narval & 65~000 & 4150--8500 & 900 &1110 & 12 \\ $ $ &/E & \elodie & 42~000 & 4050--6800 & 130 & 130 & $-$ \\ \hline 181420&/F & FEROS & 48~000 & 3800--8850 & 120 & 120 & 18 \\ $ $ &/E & \elodie & 42~000 & 4300--6800 & 120 & 120 & $-$ \\ \hline 181906&/E & \elodie & 42~000 & 4450--6750 & 110 & 110 & 10 \\ \hline \end{tabular} \end{table}