Halpha emission in beat Cepheids.
Abstract
Recent observations of the H-alpha absorption line in nine southern beat Cepheids have yielded a surprising frequency and strength of H-alpha emission. A possible phase dependence of this emission feature is examined, and its cause and implications are discussed briefly
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1978
- DOI:
- 10.1086/182850
- Bibcode:
- 1978ApJ...226L.141B
- Keywords:
-
- Cepheid Variables;
- Emission Spectra;
- H Alpha Line;
- Stellar Spectrophotometry;
- Absorption Spectra;
- Astronomical Catalogs;
- Light Curve;
- Oscillations;
- Stellar Luminosity;
- Astrophysics;
- Cepheids:Emission Lines;
- Cepheids:H Alpha