KIC 9028474: A Long-period Eclipsing Binary on a Highly Eccentric Orbit

Basit Öğe Kaydı
dc.authoridOzdarcan, Orkun/0000-0003-4820-3950
dc.authorscopusid22035667500
dc.authorwosidOzdarcan, Orkun/AAG-4552-2021
dc.contributor.authorÖzdarcan, Orkun
dc.date.accessioned2024-08-25T18:31:33Z
dc.date.available2024-08-25T18:31:33Z
dc.date.issued2023
dc.departmentEge Üniversitesien_US
dc.description.abstractWe present a comprehensive analysis of a very long-period (124.93669 days) eclipsing binary KIC 9028474, which is composed of F9V+G1V components on a highly eccentric (e = 0.82029) orbit. Masses and radii of the primary and the secondary components are M 1 = 1.18 +/- 0.04 M circle dot, M 2 = 1.04 +/- 0.03 M circle dot, R 1 = 1.52 +/- 0.02 R circle dot, and R 2 = 1.11 +/- 0.01 R circle dot, respectively. Eclipse time variations show the presence of apsidal motion, which in turn shows the existence of a third body in a relatively close orbit. Simultaneous analysis of infrared spectra and space photometry reveals that the primary component is about to leave the main sequence, indicating an age of 5.2 +/- 0.8 Gyr for the system. Theoretical evaluation of the observed eccentricity indicates that the components of KIC 9028474 will end their whole life much before the orbital circularization is achieved. Given the limited resolution of the spectra, we can only place an upper limit on the rotational velocities of each star, thus a theoretical evaluation of the synchronization of the components.en_US
dc.description.sponsorshipNASA Science Mission Directorateen_US
dc.description.sponsorshipWe thank the anonymous referee for taking the time and effort to review the manuscript and appreciate the detailed comments and criticisms that improve the quality of the manuscript. This research made use of NASA's Astrophysics Data System Bibliographic Services and SIMBAD database, operated at CDS, Strasbourg, France. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission Directorate.en_US
dc.identifier.doi10.3847/1538-3881/ad004a
dc.identifier.issn0004-6256
dc.identifier.issn1538-3881
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85177092466en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.3847/1538-3881/ad004a
dc.identifier.urihttps://hdl.handle.net/11454/99943
dc.identifier.volume166en_US
dc.identifier.wosWOS:001093493200001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofAstronomical Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240825_Gen_US
dc.subjectParametersen_US
dc.subjectCalibrationen_US
dc.subjectIsochronesen_US
dc.subjectCepheiden_US
dc.subjectStarsen_US
dc.titleKIC 9028474: A Long-period Eclipsing Binary on a Highly Eccentric Orbiten_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu