**Table 2:** Reference stars for fast rotators.
$\begin{table} \par\begin{displaymath}\begin{array}{lll} \hline \hline {\rm Fast~... ...86 \\ +89 \end{array} \\ [2.5mm] \hline \end{array} \end{displaymath}\end{table}$

	1 Introduction
	2 Observations
	3 Analysis
	4 Discussion and perspectives
	References