Low-frequency photospheric and wind variability in the early-B supergiant HD 2905 S. Simón-Díaz, C. Aerts, M. A. Urbaneja, I. Camacho, V. Antoci, M. Fredslund Andersen, F. Grundahl and P. L. Pallé A&A, 612 (2018) A40 Published online: 17 April 2018 DOI: 10.1051/0004-6361/201732160