Periodic variability in the symbiotic stars SY MUSCAE and RR Telescopii.
Abstract
The authors discuss periodic brightness variations in the symbiotic stars SY Mus and RR Tel. The 627.0-day variation in SY Mus is a result of binary motion, as the 0.6-mag amplitude is due to the reflection effect and an eclipse of the hot source by its red-giant companion. RR Tel has a 374-day cycle with an amplitude of 0.25 mag. This value for the period is nearly identical to that observed before the 1944 outburst and recently confirmed by infrared observations, and is the pulsational period of a Mira-like long-period variable.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- April 1984
- DOI:
- 10.1086/131341
- Bibcode:
- 1984PASP...96..321K
- Keywords:
-
- Astronomical Photometry;
- Stellar Luminosity;
- Symbiotic Stars;
- Variable Stars;
- Brightness;
- Light Curve;
- Mira Variables;
- Periodic Variations;
- Visual Observation;
- Astronomy