Polarisation in A-type stars with circumstellar shells
Indian Institute of Astrophysics, Bangalore 560034, India e-mail: email@example.com
Accepted: 17 May 1996
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.
Key words: polarisation / stars: emission-line / stars: circumstellar matter / infrared: stars
© European Southern Observatory (ESO), 1996