Investigation of the stability of the extreme low mass ratio contact binaries SX Crv and XX Sex, which are analysed photometrically

Basit Öğe Kaydı
dc.contributor.authorYildirim, M. F.
dc.date.accessioned2025-01-27T20:49:31Z
dc.date.available2025-01-27T20:49:31Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe photometric analyses of the extreme low mass ratio contact binaries SX Crv and XX Sex were conducted in detail. Light curves of SX Crv and XX Sex were retrieved from TESS, and light curve analyses were performed simultaneously with radial velocities. The mass ratios for SX Crv and XX Sex were calculated as 0.077(1) and 0.099(2). The masses of the primary components account for about 90% of the total masses of the systems and were determined to be 1.256(48) M (R) (R) and 1.337(37) M (R) (R) for SX Crv and XX Sex, respectively. It has been observed that the orbital periods of both systems have increased. The orbital period change rate of SX Crv has been calculated to be 0.39 s per century, while that of XX Sex has been calculated to be 2.68 s per century. The orbital angular momentum (Jo) o ) determined for both systems is more than 3 times the spin angular momentum (Js), s ), and it can be said that the SX Crv and XX Sex systems are stable. The calculated instability separation ( a ins. ) and instability mass ratio (q ins. ) values for both systems are smaller than those obtained in the analyses, which supports the stability. The estimated ages of the systems are 7.4 Gyr for SX Crv and 3.9 Gyr for XX Sex. logMtot tot - logJ and logTeff- eff - logL diagrams were also interpreted to better understand the evolution of the extreme low mass ratio contact binaries. (c) 2024 COSPAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
dc.description.sponsorshipWe believe that the quality of this study has been enhanced by the contributions and suggestions made by the referees. We would like to express our gratitude to the referees for their valuable input. This paper utilized the NASA Extragalactic Database, APASS Catalogue: The AAVSO Photometric All-Sky Survey SIMBAD, TESS, MAST, Atlas O-C, and O-C Gateway databases. Gratitude is extended to the respective working groups.
dc.identifier.doi10.1016/j.asr.2024.07.068
dc.identifier.endpage4234
dc.identifier.issn0273-1177
dc.identifier.issn1879-1948
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85200342313
dc.identifier.scopusqualityQ1
dc.identifier.startpage4223
dc.identifier.urihttps://doi.org/10.1016/j.asr.2024.07.068
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25200
dc.identifier.volume74
dc.identifier.wosWOS:001309585200001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofAdvances in Space Research
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- stars
dc.subjectIndividuals (SX Crv and XX Sex)
dc.titleInvestigation of the stability of the extreme low mass ratio contact binaries SX Crv and XX Sex, which are analysed photometrically
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu