Discovery of a magnetic field in the early B-type star σ Lupi

@article{Henrichs2012DiscoveryOA,
title={Discovery of a magnetic field in the early B-type star $\sigma$ Lupi},
author={Huib F. Henrichs and Katrien Kolenberg and B. Plaggenborg and S C Marsden and Ian A. Waite and John D Landstreet and Gregg A. Wade and Jason H. Grunhut and Mary E. Oksala and The MiMeS Collaboration},
journal={Astronomy and Astrophysics},
year={2012},
volume={545},
pages={119-128}
}
Context: Magnetic early B-type stars are rare. Indirect indicators are needed to identify them before investing in time-intensive spectropolarimetric observations. Aims: We use the strongest indirect indicator of a magnetic field in B stars, which is periodic variability of ultraviolet (UV) stellar wind lines occurring symmetric about the approximate rest wavelength. Our aim is to identify probable magnetic candidates which would become targets for follow-up spectropolarimetry to search for a… Expand
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