Absolute parameters of eclipsing binaries in Southern Hemisphere sky - II: QY Tel

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dc.authoridEngelbrecht, Christian/0000-0001-7984-9557
dc.authoridManick, Rajeev/0000-0001-7633-7038
dc.contributor.authorErdem, A.
dc.contributor.authorSurgit, D.
dc.contributor.authorEngelbrecht, C. A.
dc.contributor.authorvan Heerden, H. P.
dc.contributor.authorManick, R.
dc.date.accessioned2025-01-27T21:01:43Z
dc.date.available2025-01-27T21:01:43Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis paper presents the first analysis of spectroscopic and photometric observations of the neglected southern eclipsing binary star, QY Tel. Spectroscopic observations were carried out at the South African Astronomical Observatory in 2013. New radial velocity curves from this study and V light curves from the All Sky Automated Survey were solved simultaneously using modern light and radial velocity curve synthesis methods. The final model describes QY Tel as a detached binary star where both component stars fill at least half of their Roche limiting lobes. The masses and radii were found to be 1.32 (+/- 0.06) M-circle dot, 1.74 (+/- 0.15) R-circle dot and 1.44 (+/- 0.09) M-circle dot, 2.70 (+/- 0.16) R-circle dot for the primary and secondary components of the system, respectively. The distance to QY Tel was calculated as 365 (+/- 40) pc, taking into account interstellar extinction. The evolution case of QY Tel is also examined. Both components of the system are evolved main-sequence stars with an age of approximately 3.2 Gy, when compared to Geneva theoretical evolution models. (C) 2016 Elsevier B.V. All rights reserved.
dc.description.sponsorshipTUBITAK (Scientific and Technological Research Council of Turkey) [115F258]; University of Johannesburg (UJ); NRF; UJ
dc.description.sponsorshipThis study was supported by TUBITAK (Scientific and Technological Research Council of Turkey) under grant number 115F258. D. Surgit would like to thank the University of Johannesburg (UJ) for their financial support. C.A. Engelbrecht thanks the NRF and UJ for financial support. All the authors thank the SAAO for observing time. We acknowledge Prof. S. Zola for his help in using the W-D fortran program with modern limb-darkening coefficients.
dc.identifier.doi10.1016/j.newast.2016.06.003
dc.identifier.endpage42
dc.identifier.issn1384-1076
dc.identifier.issn1384-1092
dc.identifier.scopus2-s2.0-84976572052
dc.identifier.scopusqualityQ2
dc.identifier.startpage38
dc.identifier.urihttps://doi.org/10.1016/j.newast.2016.06.003
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27164
dc.identifier.volume49
dc.identifier.wosWOS:000380630000008
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
dc.subjectBinaries
dc.subjectEclipsing - stars
dc.subjectFundamental parameters - stars
dc.subjectIndividual (QY Tel)
dc.titleAbsolute parameters of eclipsing binaries in Southern Hemisphere sky - II: QY Tel
dc.typeArticle

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