A survey of Be stars in the infrared. II. Determination of envelope dimensions.
Abstract
Plate material concerning 34 Be stars in the 8309-8791-A region was obtained at the Observatoire de Haute Provence at 33 A/mm dispersion. It is found that emissions are frequent in all Be stars, but are more concentrated in early-type stars. The same phenomenon is found for the Ca II emissions, where a positive correlation of Ca II emission and large IR excesses measured with the IRAS satellite is demonstrated.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- July 1990
- Bibcode:
- 1990A&AS...84...11A
- Keywords:
-
- B Stars;
- Infrared Spectra;
- Stellar Envelopes;
- Stellar Spectra;
- Absorption Spectra;
- Emission Spectra;
- Infrared Astronomy Satellite;
- Spectral Line Width;
- Astronomy