Spectroscopic observations of VV Cep.
Abstract
Repeated spectroscopic observations have been made at medium dispersion of the egress phase of the VV Cep eclipsing binary system. The double emission profiles of H beta and H alpha showed characteristic variations. The blue emission component reappeared first followed by the red one. This agrees with the corresponding results obtained during the ingress phase. A rapidly rotating oblate envelope around the hot companion is proposed as a model for the emission region. The contact epochs of the different emission components allow conclusions on the morphology of the envelope.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- February 1981
- Bibcode:
- 1981A&A....94..333M
- Keywords:
-
- Eclipsing Binary Stars;
- H Lines;
- Stellar Envelopes;
- Stellar Spectra;
- B Stars;
- Emission Spectra;
- H Alpha Line;
- H Beta Line;
- Astronomy