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Broadband Linear Polarisation of CP Stars

A sky survey in the southern hemisphere
  • S. Bagnulo
  • M. J. Stift
  • F. Leone
  • D. W. Kurtz
  • P. Martinez
Part of the Astrophysics and Space Science Library book series (ASSL, volume 243)

Abstract

In recent years, an interesting new technique for the diagnosis of stellar magnetic fields has been developed, which employs the frequency integrated linear polarisation signal over a spectral interval. The form of the temporal variations in frequency integrated Stokes Q and U reflects the geometry of the magnetic field. Here we investigate the dependence of this broadband linear polarisation upon the detailed features of the stellar spectrum and present a campaign of new observations of chemically peculiar stars at the South African Astronomical Observatory.

Key words

polarization magnetic fields chemically peculiar stars observations 

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References

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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • S. Bagnulo
    • 1
  • M. J. Stift
    • 1
  • F. Leone
    • 2
  • D. W. Kurtz
    • 3
  • P. Martinez
    • 4
  1. 1.Institut für AstronomieUniversität WienWienAustria
  2. 2.Osservatorio Astrofisico di CataniaCatania
  3. 3.Department of AstronomyUniversity of Cape TownRondeboschSouth Africa
  4. 4.South African Astronomical ObservatoryObservatorySouth Africa

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