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dc.contributor.authorUlaş, B.
dc.contributor.authorKalomeni, Belinda
dc.contributor.authorKeskin, Varol
dc.contributor.authorKöse, O.
dc.contributor.authorYakut, Kadri
dc.date.accessioned2017-02-07T11:00:30Z
dc.date.available2017-02-07T11:00:30Z
dc.date.issued2012-01
dc.identifier.citationUlaş, B., Kalomeni, B., Keskin, V., Köse, O., and Yakut, K. (2012). Marginally low mass ratio close binary system V1191 Cyg. New Astronomy, 17(1), 46-49. doi:10.1016/j.newast.2011.06.002en_US
dc.identifier.issn1384-1076
dc.identifier.urihttp://doi.org/10.1016/j.newast.2011.06.002
dc.identifier.urihttp://hdl.handle.net/11147/4801
dc.description.abstractIn this study, we present photometric and spectroscopic variations of the extremely small mass ratio (q ≃ 0.1) late-type contact binary system V1191 Cyg. The parameters for the hot and cooler companions have been determined as Mh = 0.13 (1) M⊙, Mc = 1.29 (8) M ⊙, Rh = 0.52 (15) R⊙, Rc = 1.31 (18) R⊙, Lh = 0.46 (25) L⊙, Lc = 2.71 (80) L⊙, the separation of the components is a = 2.20 (8) R⊙ and the distance of the system is estimated as 278 (31) pc. Analyses of the times of minima indicates a period increase of dPdt=1.3(1)×10-6days/yr that reveals a very high mass transfer rate of dMdt=2.0(4)×10-7M⊙/yr from the less massive component to the more massive one. New observations show that the depths of the minima of the light curve have been interchanged. © 2011 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTÜBİTAK 109T047en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.newast.2011.06.002en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectStarsen_US
dc.subjectEclipsingen_US
dc.subjectFundamental parametersen_US
dc.subjectV1191 Cygen_US
dc.titleMarginally low mass ratio close binary system V1191 Cygen_US
dc.typearticleen_US
dc.contributor.authorIDTR17457en_US
dc.contributor.iztechauthorKalomeni, Belinda
dc.relation.journalNew Astronomyen_US
dc.contributor.departmentİYTE, Fen Fakültesi, Fizik Bölümüen_US
dc.identifier.volume17en_US
dc.identifier.issue1en_US
dc.identifier.startpage46en_US
dc.identifier.endpage49en_US
dc.identifier.wosWOS:000296217300008
dc.identifier.scopusSCOPUS:2-s2.0-80052235453
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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