Photometric Investigation of Contact Binary DY Cet Based on TESS Data

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dc.contributor.authorYildirim, M. F.
dc.date.accessioned2025-01-27T20:49:31Z
dc.date.available2025-01-27T20:49:31Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe present a photometric analysis of the Transiting Exoplanet Survey Satellite (TESS) light curve of contact binary system DY Cet and the behavior of its orbital period variation. The light curve and published radial velocity data analysis was performed using the Wilson-Devinney code. As a result of simultaneous analysis of the light curve with radial velocity data, the masses and radii of the system's components were determined as M (1) = 1.55 +/- 0.02 M (circle dot), M (2) = 0.55 +/- 0.01 M (circle dot) and R (1) = 1.51 +/- 0.02 R (circle dot), R (2) = 0.95 +/- 0.02 R (circle dot), respectively. The degree of contact (f) and mass ratio (q) of the system were determined as 23% and 0.355 +/- 0.012, respectively. Orbital period analysis of DY Cet was conducted for the first time in this study. It was observed that the orbital period has a sinusoidal change with decreasing parabola. To explain the orbital period change, mass transfer between components is proposed with the assumption of conservative mass, and the transfer rate was calculated to be dM/dt = 1.1 x 10(-7) M (circle dot) yr(-1). A possible third component is suggested for explaining the sinusoidal change, and the mass of the unseen component was determined as 0.13 M (circle dot). The age of the DY Cet system was estimated as 3.77 Gyr.
dc.identifier.doi10.1088/1674-4527/ac5ee8
dc.identifier.issn1674-4527
dc.identifier.issn2397-6209
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85131120433
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1674-4527/ac5ee8
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25199
dc.identifier.volume22
dc.identifier.wosWOS:000788768100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherNatl Astronomical Observatories, Chin Acad Sciences
dc.relation.ispartofResearch in Astronomy and Astrophysics
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectstars
dc.subjecteclipsing binary stars
dc.subjectstars
dc.subjectfundamental parameters of stars
dc.subjectstars
dc.subjectindividual (DY Cet)
dc.titlePhotometric Investigation of Contact Binary DY Cet Based on TESS Data
dc.typeArticle

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