\begin{table}%t3 \caption{\label{relevance}Threshold levels.} %\centerline { \begin{tabular}{rp{6.99cm}} \hline\hline $\ampmax$ & Detection\\ \hline $<$5.7 & no detection (10\% rejection level) \\ $<$8.0 & no detection (1\% rejection level) \\ \hline $10$ & measurement of $\dnumoy$ with 0.5\% precision\\ $\ge$\ampfit & fitting of the modes has proven to be possible\\ $\ge$\ampdeg & identifying the mode degree has proven to be possible\\ $\ge$\amppetit & possible estimate of the small separation as in Roxburgh \& Vorontsov (\cite{2006MNRAS.369.1491R}) \\ \hline \end{tabular}} \par \medskip The threshold values are given for a typical F dwarf. They can be made precise for a given star, according to its specific parameters $\alpha$ and $\gamma$. Levels are lower for red giants (to be estimated with $\gamma \simeq 4$ instead of~10).\vspace*{2mm} \end{table}