On the origin and evolutionary state of RZ Cas, KO Aql and S Equ

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dc.creatorMennekens, N.
dc.creatorDe Greve, J. -P.
dc.creatorVan Rensbergen, W.
dc.creatorYungelson, L. R.
dc.date2008-02-07
dc.date2008-05-06
dc.date.accessioned2026-07-07T09:53:04Z
dc.date.available2026-07-07T09:53:04Z
dc.descriptionAims. Determination of the present evolutionary state and the restrictions on the initial mass ratios of RZ Cas, KO Aql and S Equ. Methods. Comparison of mass gaining stars with evolutionary models of single stars with the same mass and subsequent comparison with accretion tracks from simultaneous conservative binary evolution. Results. The gainers are in an early main sequence stage (Xc greater than 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.
dc.description4 pages, 2 figures, accepted for publication in A&A; accepted version
dc.identifierhttps://arxiv.org/abs/0802.0944
dc.identifierhttp://arxiv.org/abs/0802.0944
dc.identifierA&A 486, 919--921 (2008)
dc.identifierdoi:10.1051/0004-6361:200809530
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/165820
dc.subjectAstrophysics
dc.titleOn the origin and evolutionary state of RZ Cas, KO Aql and S Equ
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