SIMBAD references

2008A&A...486..919M - Astronomy and Astrophysics, volume 486, 919-921 (2008/8-2)

On the origin and evolutionary state of RZ Cassiopeiae, KO Aquilae, and S Equulei.

MENNEKENS N., DE GREVE J.-P., VAN RENSBERGEN W. and YUNGELSON L.R.

Abstract (from CDS):

We determine the present evolutionary state and the restrictions on the initial mass ratios of RZ Cas, KO Aql and S Equ. We compare mass-gaining stars with evolutionary models of single stars with the same mass and subsequently compare them with accretion tracks from simultaneous conservative binary evolution. The gainers are in an early main sequence stage (Xc>0.5), with KO Aql being almost unevolved (assuming quasi-thermal equilibrium). The initial donor/gainer mass ratios Mdi/Mgi must be larger than three to obtain the present mass and luminosity of the gainers.

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Journal keyword(s): stars: binaries: eclipsing - stars: binaries: close - stars: individual: RZ Cas - stars: individual: KO Aql - stars: individual: S Equ

Simbad objects: 3

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