The Circumstellar Environment of AGB Stars Studied by Polarimetry

  • Pierre Bastien
Part of the Astrophysics and Space Science Library book series (ASSL, volume 283)


Polarimetry of AGB stars is a very useful tool for learning about the distribution of their circumstellar material. After a brief overview of mechanisms and techniques for dealing with polarimetry of AGB stars, specific polarization observations that illustrate each technique are presented. The data show that most stars do not have a spherical envelope, but rather that their circumstellar material is found to be mostly axially symmetric. A bipolar geometry is quite common for these stars.


Circumstellar material dust grains polarization scattering 


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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Pierre Bastien
    • 1
  1. 1.Département de physique, and Observatoire du mont MéganticUniversité de MontréalMontréal, QCCanada

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