Polarisation in A-type stars with circumstellar shells.
Abstract
We present the results of optical linear polarisation measurements of about 30 A-type stars that are known to be either Ae/A shell stars or have shown anomalous emission in the infrared. Compared with the general population of A-type stars, stars of this group are found to have polarisation that is also anomalous and is suggested to be circumstellar in origin.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- December 1996
- Bibcode:
- 1996A&AS..120..451B
- Keywords:
-
- POLARISATION;
- STARS: EMISSION-LINE;
- STARS: CIRCUMSTELLAR MATTER;
- INFRARED: STARS