Magnetic field measurements and wind-line variability of OB-type stars

  title={Magnetic field measurements and wind-line variability of OB-type stars},
  author={R.S. Schnerr and Huib F. Henrichs and Coralie Neiner and Eva Verdugo and Jeroen de Jong and Vincent C. Geers and Klaas Wiersema and Benno van Dalen and A. H. Tijani and B. Plaggenborg and Kazi L. J. Rygl},
  journal={Astronomy and Astrophysics},
Context. The first magnetic fields in O- and B-type stars that do not belong to the Bp-star class, have been discovered. The cyclic UV wind-line variability, which has been observed in a significant fraction of early-type stars, is likely to be related to such magnetic fields. Aims. We attempt to improve our understanding of massive-star magnetic fields, and observe twenty-five carefully-selected, OB-type stars. Methods. Of these stars we obtain 136 magnetic field strength measurements. We… 
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