Absolute parameters of detached binaries in the southern sky - III: HO Tel

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dc.authoridManick, Rajeev/0000-0001-7633-7038
dc.contributor.authorSurgit, D.
dc.contributor.authorErdem, A.
dc.contributor.authorEngelbrecht, C. A.
dc.contributor.authorvan Heerden, H. P.
dc.contributor.authorManick, R.
dc.date.accessioned2025-01-27T20:27:05Z
dc.date.available2025-01-27T20:27:05Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe present the first radial velocity analysis of the southern eclipsing binary star HO Tel, based on spectra obtained at the South African Astronomical Observatory in 2013. The orbital solution of this neglected binary gave the quite large spectroscopic mass ratio of 0.921(+/- 0.005). The V light curve from the All Sky Automated Survey (ASAS) and Walraven five-colour (WULBV) photometric light curves (Spoelstra and Van Houten 1972) were solved simultaneously using the Wilson-Devinney code supplemented by the Monte Carlo search method. The final photometric model describes HO Tel as a detached binary star where both component stars fill about three-quarters of their Roche limiting lobes. The masses and radii were found to be 1.88(+/- 0.04) M-circle dot, 2.28(+/- 0.15) R-circle dot and 1.73(+/- 0.04) M-circle dot, 2.08(+/- 0.16) R-circle dot for the primary and secondary components of the system, respectively. The distance to HO Tel was calculated as 282(+/- 30) pc, taking into account interstellar extinction. The evolution case of HO Tel was also examined. Both components of the system are evolved main-sequence stars with an age of approximately 1.1 Gy, when compared to Geneva theoretical evolution models. (C) 2017 Elsevier B.V. All rights reserved.
dc.description.sponsorshipTUBITAK (Scientific and Technological Research Council of Turkey) [115F258]; University of Johannesburg (UJ); South African National Research Foundation
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 South African National Research Foundation 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.2017.01.013
dc.identifier.endpage114
dc.identifier.issn1384-1076
dc.identifier.issn1384-1092
dc.identifier.scopus2-s2.0-85011818240
dc.identifier.scopusqualityQ2
dc.identifier.startpage109
dc.identifier.urihttps://doi.org/10.1016/j.newast.2017.01.013
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22571
dc.identifier.volume54
dc.identifier.wosWOS:000397369300015
dc.identifier.wosqualityQ4
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 (HO Tel)
dc.titleAbsolute parameters of detached binaries in the southern sky - III: HO Tel
dc.typeArticle

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