Free access
Issue
Astron. Astrophys. Suppl. Ser.
Volume 130, Number 3, June II 1998
Page(s) 507 - 512
DOI http://dx.doi.org/10.1051/aas:1998101
DOI: 10.1051/aas:1998101

Astron. Astrophys. Suppl. Ser. 130, 507-512

Ae and A type shell stars

C. Jaschek1 - Y. Andrillat2

Send offprint request: Y. Andrillat 27 ter r.Adam de Craponne, 34000 Montpellier, France.


1 - Observatoire de Strasbourg, URA 1280, CNRS, 11 rue de l'Université, 67000 Strasbourg, France
2 - Laboratoire d'Astronomie, Université de Montpellier 2, URA 1280 CNRS, place Eugène Bataillon, 34095 Montpellier, Cedex 5, France

Received November 13, 1997; accepted January 26, 1998

Abstract:

We present and discuss the observations of 14 Ae and A type shell stars in the visual, the H$\alpha$ region and the near infrared. At least 57% of these stars are spectrum variables. The Paschen lines are formed in a region which has the characterics of giant stars. We find that the systems lie one magnitude above the main sequence and that a large percentage belong to double and triple systems.

Key words: stars: early type; emission line; variables

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