Photometric campaign on massive stars in the open cluster NGC 5617

F. Carrier, S. Saesen, M. Cherix, G. Bourban, G. Burki, J. Debosscher, D. Debruyne, P. Gruyters, L. M. Sarro, M. Spano, L. Weber

Published 2009-01-06Version 1

A campaign on the open cluster NGC 5617 was organized in order to characterize the pulsations and to better understand the internal structure of its stars. The variability of the cluster members was never studied before. We present the observations taken and an up-to-date analysis of the obtained time series, especially of several SPB candidates we discovered.