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)


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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  1. Bagnulo, S., Landi Degl’Innocenti, E., Landolfi, M., and Leroy, J.-L.: 1995, Astron. Astrophys., 295, 459ADSGoogle Scholar
  2. Landi Degl’Innocenti, M., Calamai, G., Landi Degl’Innocenti, E., and Patriarchi, P.: 1981, Astrophys. J., 249, 228ADSCrossRefGoogle Scholar
  3. Landolfi, M., Landi Degl’Innocenti, E., Landi Degl’Innocenti, M., and Leroy, J.-L.: 1993, Astron. Astrophys., 272, 285ADSGoogle Scholar
  4. Landolfi, M., Bagnulo, S., Landi Degl’Innocenti, M., Landi Degl’Innocenti, E., and Leroy, J.-L.: 1997, Astron. Astrophys., 322, 197ADSGoogle Scholar
  5. Leroy, J.-L.: 1962, Ann. Astrophys., 25, 127ADSGoogle Scholar
  6. Leroy, J.-L., Landstreet, J.D., and Bagnulo, S.: 1994, Astron. Astrophys., 284, 491ADSGoogle Scholar
  7. Leroy, J.-L.: 1995, Astron. Astrophys. Suppl., 114, 79ADSGoogle Scholar
  8. Leroy, J.-L., Landolfi, M., Landi Degl’Innocenti, M.; Landi Degl’Innocenti, E., Bagnulo, S., and Laporte, P.: 1995, Astron. Astrophys., 301, 79Google Scholar
  9. Leroy, J.-L., Landolfi, M., and Landi Degl’Innocenti, E.: 1996, Astron. Astrophys., 311, 513ADSGoogle Scholar
  10. Mathys, G. and Hubrig, S.: 1997, Astron. Astrophys. Suppl., 124, 475ADSCrossRefGoogle Scholar
  11. Stift, M.J.: 1996, in: Model Atmospheres and Spectrum Synthesis, Adelman, S.J., Kupka, F., and Weiss, W.W. (eds.) ASP Conference Series, 108, 217Google Scholar
  12. Stift, M.J.: 1997, in: Advances in the Physics of Sunspots, Schmieder, B., del Toro Iniesta, J.C., and Vázquez, M. (eds.) ASP Conference Series, 118, 242Google Scholar
  13. Stift, M.J.: 1998, Computers in Physics, 12, 150ADSCrossRefGoogle Scholar

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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