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| Paper: |
Detection of Linear Polarization in the Metal Lines of 89 Herculis |
| Volume: |
526, Solar Polarization Workshop 8 |
| Page: |
203 |
| Authors: |
Gangi, M.; Leone, F.; Scalia, C. |
| Abstract: |
We studied the polarized spectrum of the post-AGB binary system 89 Herculis
using spectropolarimetric data collected with the Catania
Astrophysical Observatory Spectropolarimeter.
We discovered the existence of linear polarization in the metal absorption
lines (as a global trend).
Stokes Q and U signals are characterized by complex morphologies
varying in time.
These signals might be evidences of resonance polarization, and could be
ascribed to the anisotropy of the radiation field, induced by the dynamics
of the system. |
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