P-mode observations on alpha Cen A

We have made a clear detection of p-mode oscillations in the nearest solar- like G2V star alpha Cen A with the CORALIE spectrograph on the 1.2-m Swiss telescope at the ESO La Silla Observatory. We report the 5 nights of observ ation on this star in May 2001 during which 1260 high precision radial velo city measurements were obtained. The power spectrum clearly shows several i dentifiable peaks between 1.7 and 3 mHz. The average large splitting of 105 .7 mu Hz and the amplitude of about 35 cm s(-1) of these modes are in agree ment with theoretical expectations.