| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 130, Number 3, June II 1998
|
|
|---|---|---|
| Page(s) | 507 - 512 | |
| DOI | https://doi.org/10.1051/aas:1998101 | |
| Published online | 15 June 1998 | |
Ae and A type shell stars
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
Send offprint request to: Y. Andrillat 27 ter r.Adam de Craponne, 34000 Montpellier, France.
Received:
13
November
1997
Accepted:
26
January
1998
We present and discuss the observations of 14 Ae and A type shell stars in the visual, the Hα 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
© European Southern Observatory (ESO), 1998