A model of AW UMa

dc.creatorPaczynski, B.
dc.creatorSienkiewicz, R.
dc.creatorSzczygiel, D. M.
dc.date2006-12-20
dc.date2007-03-31
dc.date.accessioned2026-07-07T11:00:32Z
dc.date.available2026-07-07T11:00:32Z
dc.descriptionThe contact binary AW UMa has an extreme mass ratio, with the more massive component (the current primary) close to the main sequence, while the low mass star at q ~ 0.1 (the current secondary) has a much larger radius than a main sequence star of a comparable mass. We propose that the current secondary has almost exhausted hydrogen in its center and is much more advanced in its evolution, as suggested by Stepien. Presumably the current secondary lost most of its mass during its evolution with part of it transferred to the current primary. After losing a large fraction of its angular momentum, the binary may evolve into a system of FK Com type.
dc.description5 pages, 6 figures, Accepted to MNRAS, content changed
dc.identifierhttps://arxiv.org/abs/astro-ph/0612600
dc.identifierhttp://arxiv.org/abs/astro-ph/0612600
dc.identifierMon.Not.Roy.Astron.Soc.378:961-965,2007
dc.identifierdoi:10.1111/j.1365-2966.2007.11822.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187696
dc.subjectAstrophysics
dc.titleA model of AW UMa
dc.typetext

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