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

  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},
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
Discovery of the magnetic field in the pulsating B star β Cephei
Context. Although the star itself is not helium enriched, the periodicity and the variability in the UV wind lines of the pulsating B1 IV star β Cephei are similar to what is observed in magneticExpand
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Context. Most O-type stars and many B stars show unexplained cyclical variability in their spectral lines, i.e., modulation on the rotational timescale, but not strictly periodic. The variabilityExpand
Weak magnetic field, solid-envelope rotation, and wave-induced N-enrichment in the SPB star ζ Cassiopeiae
Aims. The main-sequence B-type star ζ Cassiopeiae is known as a N-rich star with a magnetic field discovered with the Musicos spectropolarimeter. We model the magnetic field of the star by means ofExpand
The magnetic early B-type Stars II: stellar atmospheric parameters in the era ofGaia
Atmospheric parameters determined via spectral modelling are unavailable for many of the known magnetic early B-type stars. We utilized high-resolution spectra together with NLTE models to measureExpand
The MiMeS Survey of Magnetism in Massive Stars
The Magnetism in Massive Stars (MiMeS) survey represents a highprecision systematic search for magnetic fields in hot, massive OB stars. To date, MiMeS Large Programs (ESPaDOnS@CFHT, Narval@TBL,Expand
We have composed a sample of 68 massive stars in our galaxy whose projected rotational velocity, effective temperature, and gravity are available from high-precision spectroscopic measurements. TheExpand
Links between surface magnetic fields, abundances, and surface rotation in clusters and in the field
  • N. Przybilla
  • Physics
  • Proceedings of the International Astronomical Union
  • 2014
Abstract Theory predicts that hydrodynamical instabilities transport angular momentum and chemical elements in rotating massive stars. An interplay of rotation and a magnetic field affects theseExpand
Magneto-asteroseismology of massive magnetic pulsators
Abstract Simultaneously and coherently studying the large-scale magnetic field and the stellar pulsations of a massive star provides strong complementary diagnostics suitable for detailed stellarExpand
The magnetic early B-type stars I : magnetometry and rotation
The rotational and magnetic properties of many magnetic hot stars are poorly characterized, therefore the Magnetism in Massive Stars and Binarity and Magnetic Interactions in various classes of StaExpand
The Rotational Evolution and Magnetospheric Emission of the Magnetic Early B-type Stars
Thesis (Ph.D, Physics, Engineering Physics and Astronomy) -- Queen's University, 2016-08-02 12:36:18.169


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Ori is a B2IIIe star for which rotational modulation and non-radial pulsations (NRP) have been recently investi- gated from two independent observational campaigns in 1998 and 1999. Putting the dataExpand
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Quantitative measurements of the absorption strength of the Si IV (1400 A) and C IV (1550 A) resonanIVe doublets have been made from OAO-2 far-ultraviolet spectra of 118 O- and B00-type stars forExpand