Photoelectric UBV observations of the peculiar emission star He 2-467.
Abstract
Photoelectric observations during 1982-1984 indicate that the peculiar emission-line object He 2-467 was variable in all the U, B, V bands, especially U. The U - B fluctuation amplitude exceeds 1.5 m. A strong UV excess is present. He 2-467 is modeled as a binary system comprising a G giant and a hot subdwarf surrounded by a gaseous envelope or disk. The gas emits primarily continuum radiaiation, its emission lines being suppressed by self-absorption. The measured equivalent width of the H-alpha emission line and the object's position in the two-color diagram are consistent with this model.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- October 1985
- Bibcode:
- 1985PAZh...11..706A
- Keywords:
-
- Peculiar Stars;
- Stellar Envelopes;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Ultraviolet Astronomy;
- Variable Stars;
- Binary Stars;
- Emission Spectra;
- G Stars;
- H Alpha Line;
- Light Curve;
- Stellar Color;
- Stellar Models;
- Astrophysics