Optical Polarimetry of AGB star Circumstellar Envelopes
Abstract
We present visual light multi-wavelength polarimetry of stars behind the circumstellar envelopes (CSE) of the asymptotic giant branch (AGB) stars IRC+10216 and IK Tau. We find significant polarization attributable to the CSEs with unusual polarization curve characteristics. These extinction polarimetry observations complement recent SOFIA/HAWC+ emission polarimetry, allowing better constraints on the modeling of the grain characteristic and alignment in the CSEs.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23314304C