Updated pulsation period relations of gamma Dor-type stars in eclipsing binaries: the case of KIC 2557430

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dc.contributor.authorHoyman, Baris
dc.contributor.authorCakirli, Omur
dc.contributor.authorOzdarcan, Orkun
dc.date.accessioned2020-12-01T12:04:51Z
dc.date.available2020-12-01T12:04:51Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractWe employ optical spectroscopy and Kepler photometry to derive the physical properties and pulsational characteristics of the detached system KIC 2557430. We find that the system is formed by F-type components. Combining results from the analysis of spectroscopic data and Kepler photometry, we calculatemasses and radii of the primary and the secondary components as M-1 = 1.69 +/- 0.03 M-circle dot, M-2 = 1.35 +/- 0.02 M-circle dot and R-1 = 1.88 +/- 0.02 R-circle dot, R-2 = 1.23 +/- 0.03 R-circle dot, respectively. Position of the primary component in the HR diagram is in the region of gamma Doradus-type pulsators and the residuals from light curve modelling exhibit additional light variation with a dominant period of similar to 0.5 d(-1). These are clear evidence of the gamma Doradus-type pulsations on the primary component. Focusing on the gamma Dor primaries, with their currently known numbers in eclipsing binaries to compare against, we probe the role binary stars might play, to understand the nature of gamma Dor-type pulsations.en_US
dc.description.sponsorshipEge University Research FoundationEge University [FDK-2019-20215]; NASA's Science Mission Directorate; NASANational Aeronautics & Space Administration (NASA) [NAS5-26555]; TUBI.TAK National Observatory (TUG)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [16ARTT150-940, 16ARTT150-941]en_US
dc.description.sponsorshipWe thank Ege University Research Foundation (Project No. FDK-2019-20215) for supporting this study. This article is a part of the PhD thesis of B. Hoyman. the authors express their sincere thanks to an anonymous referee whose valuable comments led to an improvement of the paper. the following internet-based resources were used in research for this paper: the NASA Astrophysics Data System; the SIMBAD data base operated at CDS, Strasbourg, France. This work is partly based on data from the Kepler mission. Kepler was competitively selected as the tenth Discovery mission. Funding for this mission is provided by NASA's Science Mission Directorate. the photometric data were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. We also thank TUBI.TAK National Observatory (TUG) for a partial support in using RTT150 (Russian-Turkish 1.5 m telescope in Antalya) with project number 16ARTT150-940 and 16ARTT150-941.en_US
dc.identifier.doi10.1093/mnras/stz3302
dc.identifier.endpage5990en_US
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.issn0035-8711en_US
dc.identifier.issn1365-2966en_US
dc.identifier.issue4en_US
dc.identifier.startpage5980en_US
dc.identifier.urihttps://doi.org/10.1093/mnras/stz3302
dc.identifier.urihttps://hdl.handle.net/11454/62769
dc.identifier.volume491en_US
dc.identifier.wosWOS:000512310600106en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherOxford Univ Pressen_US
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbinaries: closeen_US
dc.subjectbinaries: eclipsingen_US
dc.subjectstars: fundamental parametersen_US
dc.subjectstars: individual: KIC 2557430en_US
dc.subjectstars: variables: generalen_US
dc.subjectstars: oscillations (including pulsations)en_US
dc.titleUpdated pulsation period relations of gamma Dor-type stars in eclipsing binaries: the case of KIC 2557430en_US
dc.typeArticleen_US

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