Infrared and optical variations in omicron Cassiopeiae (HD 4180).
Abstract
Observations of the Be star Omicron Cas show it to be variable in the infrared; comparison with visual spectroscopy suggests that the infrared variations are correlated with variations in the Balmer emission lines. The photometric and spectroscopic variations are ascribed to variations in the ionized gas surrounding the star.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- December 1978
- DOI:
- 10.1086/130414
- Bibcode:
- 1978PASP...90..697E
- Keywords:
-
- B Stars;
- Infrared Spectra;
- Stellar Radiation;
- Stellar Spectrophotometry;
- Variable Stars;
- Emission Spectra;
- Graphs (Charts);
- Stellar Envelopes;
- Stellar Luminosity;
- Astrophysics;
- Be Stars:Infrared Photometry;
- Be Stars:Infrared Spectra