Photometric analysis of the contact binary star V829 Hercules using light curves on three consecutive years

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dc.contributor.authorErdem, A.
dc.contributor.authorOzkardes, B.
dc.date.accessioned2025-01-27T20:11:56Z
dc.date.available2025-01-27T20:11:56Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNew BVR light curves and photometric analysis of the contact binary star V829 Her are presented. The light curves were obtained at the COMU Observatory in the consecutive years 2003, 2004 and 2005. Firstly, the variation of the orbital period of the system was studied. The sinusoidal and secular changes were found and examined in terms of two plausible mechanisms, namely (i) the conservative mass transfer between the components of the system and (ii) the light-time effect due to an unseen component in the system. The instrumental magnitudes of all observed stars in this study were converted into standard magnitudes. We also study nature of asymmetries and the intrinsic variability in the light curves of the system. Light variations are summarized: (a) changes of light levels of both maxima and (b) changes of the depths of both primary and secondary eclipses. These peculiar asymmetries were interpreted in terms of dark spot(s) on the surface of the large and more massive component star. The present BVR light curves and radial velocity curves obtained by Lu, W., Rucinski, S. M., 1999. AJ It 8, 515 were analysed by means of the latest version of the Wilson-Devinney program, simultaneously. Thus, the absolute parameters of the system were also derived. (c) 2006 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.newast.2006.09.002
dc.identifier.endpage200
dc.identifier.issn1384-1076
dc.identifier.issue3
dc.identifier.scopus2-s2.0-33751333932
dc.identifier.scopusqualityQ2
dc.identifier.startpage192
dc.identifier.urihttps://doi.org/10.1016/j.newast.2006.09.002
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20783
dc.identifier.volume12
dc.identifier.wosWOS:000243175900005
dc.identifier.wosqualityQ2
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 : V829 Hercules
dc.titlePhotometric analysis of the contact binary star V829 Hercules using light curves on three consecutive years
dc.typeArticle

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