The pulsations of the B5IVe star HD181231 revealed by CoRoT
Neiner, C.; Janot-Pacheco, E.; Floquet, M.; Martayan, C.; Emilio, M.; Huat, A. -L.; Hubert, A. -M.; de Batz, B.; Leroy, B.; Andrade, L.; Fabregat, J.; Suso, J.; Fremat, Y.; Gutierrez-Soto, J.; Facanha, W.
Abstract
We present the first results of the analysis of the light curve of the B5IVe star HD 181231 obtained during a long run (5 months) of the CoRoT mission. The light curve shows clear pulsations and even beating effects. Several frequencies are detected. Ground-based spec- troscopic data have also been analyzed and help to determine the rotation frequency and identify pulsation modes.