The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry

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dc.contributor.authorKoçak D.
dc.contributor.authorYakut K.
dc.contributor.authorSouthworth J.
dc.contributor.authorEggleton P.P.
dc.contributor.authorİçli T.
dc.contributor.authorTout C.A.
dc.contributor.authorBloemen S.
dc.date.accessioned2021-05-03T20:57:01Z
dc.date.available2021-05-03T20:57:01Z
dc.date.issued2021
dc.description.abstractWe present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to determine precise orbital and physical parameters of this relatively long period (P = 10.3) and slightly eccentric (e = 0.3) binary system. The physical parameters have been determined to be M 1 = 1.194 0.008 M o?, M 2 = 1.078 0.007 M o?, R 1 = 1.682 0.004 R o?, R 2 = 1.226 0.005 R o?, L 1 = 2.8 0.4 L o?, L 2 = 1.8 0.2 L o?, and orbital separation a = 26.20 0.04 R o? through simultaneous solutions of the Kepler light curves and WHT radial velocity data. Binarity effects were extracted from the light curve in order to study intrinsic variations in the residuals. Five significant and more than 100 combination frequencies were detected. We modeled the binary system assuming nonconservative evolution models with the Cambridge stars (twin) code, and we show the evolutionary tracks of the components in the log L-log T plane, the log R- log M plane, and the log P-age plane for both spin and orbital periods together with eccentricity e and log R1. The model of the nonconservative processes in the code led the system to evolve to the observed system parameters in roughly 5.1 Gyr. © 2021. The American Astronomical Society. All rights reserved.en_US
dc.identifier.doi10.3847/1538-4357/abe546
dc.identifier.issn0004-637X
dc.identifier.issn0004-637Xen_US
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85103561246en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.3847/1538-4357/abe546
dc.identifier.urihttps://hdl.handle.net/11454/71453
dc.identifier.volume910en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIOP Publishing Ltden_US
dc.relation.ispartofAstrophysical Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleThe Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometryen_US
dc.typeArticleen_US

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