Large-scale wind structures in OB supergiants: a search for rotationally modulated Hαvariability

T. Morel, S. V. Marchenko, A. K. Pati +4

We present the results of a long-term monitoring campaign of the Hαline in a sample of bright OB-supergiants (O7.5-B9) that aims at detecting rotationally modulated changes potenti…