The Algol-type eclipsing binaries RW CrB and VZ Leo: new RI photometric study and search for pulsations

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dc.authoridLiakos, Alexios/0000-0002-0490-1469
dc.authoridUlas, Burak/0000-0002-4624-3847
dc.contributor.authorUlas, B.
dc.contributor.authorNiarchos, P. G.
dc.contributor.authorLampens, P.
dc.contributor.authorLiakos, A.
dc.date.accessioned2025-01-27T20:12:28Z
dc.date.available2025-01-27T20:12:28Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study we present the new R and I light curve solutions for the eclipsing binary systems RW CrB and VZ Leo, which for VZ Leo is the first one in the literature. Our new observations have been analyzed using the Wilson-Devinney code from which new geometric and photometric elements are derived. The geometry of both stars is that of a semi-detached binary system where the secondary component fills its Roche lobe while the primary component is well inside. In the case of RW CrB, asymmetry in the light curve was explained by a spot model. The orbital period changes of both systems were studied and the results indicated a period decrease which can be explained by angular momentum loss. We also investigated the possibility of pulsations of the primary components since these systems are mentioned as candidates of delta Sct type pulsation. However, a time-series analysis of the residual curves in the filter I does not indicate any evidence of periodic light variation for both systems. Finally, we compared the results obtained for both binary stars to those of similar systems.
dc.description.sponsorshipERASMUS; National and Kapodistrian University of Athens, Greece [70/3/8680, 70/4/5806]
dc.description.sponsorshipThis research has made use of grant through ERASMUS Programme ( B. U.), and of the Special account for Research Grants Nos 70/3/8680 and 70/4/5806 of the National and Kapodistrian University of Athens, Greece (P.G.N. and A. L.).
dc.identifier.doi10.1007/s10509-008-9945-x
dc.identifier.endpage62
dc.identifier.issn0004-640X
dc.identifier.issn1572-946X
dc.identifier.issue1
dc.identifier.scopus2-s2.0-58149490968
dc.identifier.scopusqualityQ2
dc.identifier.startpage55
dc.identifier.urihttps://doi.org/10.1007/s10509-008-9945-x
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20950
dc.identifier.volume319
dc.identifier.wosWOS:000262391800007
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofAstrophysics and Space Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectStars: binaries: eclipsing
dc.subjectStars: spots
dc.subjectStars:individual (RW CrB, VZ Leo)
dc.titleThe Algol-type eclipsing binaries RW CrB and VZ Leo: new RI photometric study and search for pulsations
dc.typeArticle

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