Free Access
Astron. Astrophys. Suppl. Ser.
Volume 120, Number 3, December_II 1996
Page(s) 451 - 455
Published online 15 December 1996
Polarisation in A-type stars with circumstellar shells DOI: 10.1051/aas:1996300

Astronomy and Astrophysics Supplement Series, Vol. 120, December II 1996, 451-455

Polarisation in A-type stars with circumstellar shells

H.C. Bhatt

Indian Institute of Astrophysics, Bangalore 560034, India

Received March 13; accepted May 17, 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

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