A W UMa type system from Southern Hemisphere: CN Hydri

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dc.authoridBAKIS, VOLKAN/0000-0002-3125-9010
dc.contributor.authorOzkardes, B.
dc.contributor.authorErdem, A.
dc.contributor.authorBakis, V.
dc.date.accessioned2025-01-27T20:41:49Z
dc.date.available2025-01-27T20:41:49Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe present an analysis of the Hipparcos photometry and the high-resolution (lambda/Delta lambda = 41000) spectroscopy of the W UMa type system CN Hyi obtained in this study for the first time. The high resolution spectroscopic observations of the system were made at Mt. John University Observatory by using HERCULES fibre-fed echelle spectrograph in September 2007. The radial velocities of the component stars of the system were determined by using the spectral disentangling technique. The orbital solution of CN Hyi yielded the spectroscopic mass ratio as 0.189. We performed the simultaneous solution of the Hipparcos light curve and the radial velocity curves. The light contribution of the third star to the total light of the system was also considered during our photometric analysis. The Simultaneous solutions yielded the absolute parameters of the system as M-1 = 1.37 M-1, M-2 = 0.25 M-2 for the masses, R-1 = 1.60 R-1, R-2 = 0.77 R-2, for the radii, and M-v.1, = 3(m).23, M-v.2 = 4(m).92 for the absolute magnitudes of the primary and secondary components, respectively. The distance of the system was calculated as 56 pc using the distance modulus with the corrections of the interstellar extinction. The positions of the components of CN Hyi in the FIR diagram were also discussed. (C) 2009 Elsevier B.V. All rights reserved.
dc.description.sponsorshipCanakkale Onsekiz Mart University Research Foundation [2007/56]
dc.description.sponsorshipThis study is part of the PhD thesis of BO and was supported by Canakkale Onsekiz Mart University Research Foundation under the Grant No. 2007/56. We also thank Prof. John Hearnshaw for granting us to use observing facilities at Mt. John University Observatory.
dc.identifier.doi10.1016/j.newast.2009.01.003
dc.identifier.endpage466
dc.identifier.issn1384-1076
dc.identifier.issn1384-1092
dc.identifier.issue5
dc.identifier.scopus2-s2.0-60949091937
dc.identifier.scopusqualityQ2
dc.identifier.startpage461
dc.identifier.urihttps://doi.org/10.1016/j.newast.2009.01.003
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24245
dc.identifier.volume14
dc.identifier.wosWOS:000264464100004
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofNew Astronomy
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectBinaries
dc.subjectEclipsing - stars
dc.subjectFundamental parameters - technique
dc.subjectSpectroscopy - technique
dc.subjectPhotometry - stars
dc.subjectIndividual (CN Hyi)
dc.titleA W UMa type system from Southern Hemisphere: CN Hydri
dc.typeArticle

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