The circumstellar environment of AGB stars studied by polarimetry

Details The circumstellar environment of AGB stars studied by polarimetry The circumstellar environment of AGB stars studied by polarimetry

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..181b&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

Circumstellar Material, Dust Grains, Polarization, Scattering

Scientific paper

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.

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