Period studies of five neglected Algol-type binaries: RW Cet, BO Gem, DG Lac, SW Oph and WY Per

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dc.authoridSoydugan, Faruk/0000-0002-5141-7645
dc.contributor.authorErdem, A.
dc.contributor.authorDogru, S. S.
dc.contributor.authorSoydugan, Faruk
dc.contributor.authorCicek, C.
dc.contributor.authorDemircan, O.
dc.date.accessioned2025-01-27T20:27:05Z
dc.date.available2025-01-27T20:27:05Z
dc.date.issued2010
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe investigated the orbital period variations of five neglected Algol-type eclipsing binaries (RW Cet, BO Gem, DG Lac, SW Oph and WY Per) in this study Their O-C diagrams display tilted sinusoidal variations superimposed on upward parabolic forms The parabolic variations, which correspond to secular period increases, were interpreted in terms of the combined effect of mass transfer and loss Then, the mass transfer rates from the less massive secondary components to more massive primaries for non-conservative cases were calculated to be similar to 10(-7) M(circle dot)/yr for RW Cet. DG Lac and SW Oph and similar to 10(8) M(circle dot)/yr for BO Gem and WY Per The tilted (eccentric) sinusoidal representations of the O-C variations were interpreted in terms of the light-time effect due to unseen components in the systems. The possible third bodies in four Algol binaries (excluding RW Cet) would have masses larger than one solar mass If these hypothetical large massive third bodies were normal stars, they should be detectable Therefore, new astrometric, photometric and spectroscopic observations of these systems and careful analyses of the resulting data are required (C) 2010 Elsevier B V All rights reserved
dc.description.sponsorshipTUBITAK (Scientific and Technological Research Council of Turkey) [108T714]
dc.description.sponsorshipThis work was supported by TUBITAK (Scientific and Technological Research Council of Turkey) under Grant No. 108T714 We thank N. Erkan, T. Akin and F. Alicavus for their assistance during the observations We also thank Mr. G.H. Lee for checking the English.
dc.identifier.doi10.1016/j.newast.2010.02.007
dc.identifier.endpage636
dc.identifier.issn1384-1076
dc.identifier.issue7
dc.identifier.scopus2-s2.0-77955716460
dc.identifier.scopusqualityQ2
dc.identifier.startpage628
dc.identifier.urihttps://doi.org/10.1016/j.newast.2010.02.007
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22573
dc.identifier.volume15
dc.identifier.wosWOS:000278639200006
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofNew Astronomy
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectStars binaries close
dc.subjectStars binaries eclipsing
dc.subjectStars individual RW Cet
dc.subjectBO Gem
dc.subjectDG Lac
dc.subjectSW Oph
dc.subjectWY Per
dc.titlePeriod studies of five neglected Algol-type binaries: RW Cet, BO Gem, DG Lac, SW Oph and WY Per
dc.typeArticle

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