Periodic variability in the symbiotic stars SY MUSCAE and RR Telescopii

Details Periodic variability in the symbiotic stars SY MUSCAE and RR Telescopii Periodic variability in the symbiotic stars SY MUSCAE and RR Telescopii

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..321k&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, April 1984, p. 321-324.

Astronomy and Astrophysics

Astronomy

15

Astronomical Photometry, Stellar Luminosity, Symbiotic Stars, Variable Stars, Brightness, Light Curve, Mira Variables, Periodic Variations, Visual Observation

Scientific paper

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.

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