The close binary system EG cephei

dc.contributor.authorErdem, A
dc.contributor.authorBudding, E
dc.contributor.authorDemircan, O
dc.contributor.authorDegirmenci, OL
dc.contributor.authorGülmen, Ö
dc.contributor.authorSezer, C
dc.date.accessioned2025-01-27T20:41:41Z
dc.date.available2025-01-27T20:41:41Z
dc.date.issued2005
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNew light curves and available times of minima of a beta Lyr system EG Cep were analysed to deduce more information on the nature of the system. The main U-shaped (O - C) variation was interpreted in terms of the mass transfer and mass loss in the system. The same variation was also considered as a part of a sinusoidal variation and thus interpreted in terms of a light-time effect due to an unseen component in the system. New B and V light curves were analyzed with different fitting procedures, and there is general agreement that both stars must be very close to each other and to stability limits. A model that fits all the data well has a near main sequence primary and a secondary star that is overflowing matter towards it. This secondary is also reasonably close to main sequence conditions. The configuration thus appears to be a (relatively uncommon) ' Case A ' type evolving Algol and raises interesting questions about such interactive evolution and potentially useful tests of theory.
dc.identifier.doi10.1002/asna.200410356
dc.identifier.endpage337
dc.identifier.issn0004-6337
dc.identifier.issue5
dc.identifier.scopus2-s2.0-21344471902
dc.identifier.scopusqualityQ3
dc.identifier.startpage332
dc.identifier.urihttps://doi.org/10.1002/asna.200410356
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24212
dc.identifier.volume326
dc.identifier.wosWOS:000230202200003
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofAstronomische Nachrichten
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectbinaries : eclipsing
dc.subjectstars : individual (EG Cep)
dc.titleThe close binary system EG cephei
dc.typeArticle

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