Evidence for pulsation in the hydrogen-deficient binary Upsilon Sagittarii.
Abstract
The authors present the first UBV light curves obtained for the extremely hydrogen-deficient binary system Upsilon Sagittarii. Preliminary analysis reveals a periodic variability on the time-scale of 21 day. It seems likely that other frequencies are involved.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- October 1986
- DOI:
- 10.1093/mnras/222.3.543
- Bibcode:
- 1986MNRAS.222..543M
- Keywords:
-
- Abundance;
- Eclipsing Binary Stars;
- Hydrogen;
- Light Curve;
- Ubv Spectra;
- Periodic Variations;
- Spectrum Analysis;
- Stellar Oscillations;
- Astrophysics