Short-term variability and mass loss in Be stars. I. BRITE satellite photometry of η and μ Centauri

D. Baade, Thomas Rivinius, Andrzej Pigulski, A. C. Carciofi, C. Martayan, Werner Wolfgang Weiss, Rainer Kuschnig, Anthony F J Moffat, Gregg A. Wade, J. Grunhut, A. Mehner, Herbert Pablo, A. Popowicz, Slavek M. Rucinski, G. N. Whittaker