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The Massive Eclipsing Binary RY Scuti

Published online by Cambridge University Press:  14 August 2015

G. Giuricin  and
F. Mardirossian
G. Giuricin
Affiliation:
Osservatorio Astronomico di Trieste, Trieste, Italy
F. Mardirossian
Affiliation:
Osservatorio Astronomico di Trieste, Trieste, Italy

Abstract

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We have analyzed Ciatti et al's (1980) UBV lightcurves of the massive eclipsing binary RY Set. The BO primary, being considerably over-luminous and oversized for its mass, is certainly appreciably evolved. That this star is nearly filling its Robe lobe strongly supports the idea that it is undergoing a phase of mass transfer (case B), through Robe lobe overflow, towards its more massive secondary companion. In view of its properties, RY Set, which represents an uncommon evolutionary stage, is lively to evolve into a Wolf-Rayet binary systems.

Type
SESSION 5 — EVOLUTIONARY STATUS OF WOLF-RAYET STARS
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 383 - 386
Copyright
Copyright © Reidel 1982 

References

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