Analysis of TESS Field Eclipsing Binary Star V948 Her: A Pulsating or Non-pulsating Star?

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dc.authoridKahraman Alicavus, Filiz/0000-0002-9036-7476
dc.contributor.authorAlicavus, F. Kahraman
dc.contributor.authorEkinci, O.
dc.date.accessioned2025-01-27T20:51:52Z
dc.date.available2025-01-27T20:51:52Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPulsating stars occupy a significant place in the H-R diagram and it was thought that all stars inside the classical instability strip should pulsate. However, recent studies showed that there are many non-pulsating stars located inside the classical instability strip. The existence of these non-pulsating stars is still a mystery. To deeply understand the properties of these non-pulsating and pulsating stars, one needs precise fundamental stellar parameters (e.g. mass). For this purpose, the eclipsing binaries are unique systems. Hence, in this study, we present the TESS data analysis of one candidate pulsating eclipsing binary system, V948 Her. TESS data were used for the binary modeling with the literature radial velocity measurements, and the precise fundamental parameters of the system were obtained. The system's age was derived as 1 +/- 0.24 Gyr. The positions of the binary components in the H-R diagram were examined and the primary component was found inside the delta Scuti instability strip. However, in the frequency analysis of TESS data, we found no significant pulsation frequencies. Only the harmonics of the orbital periods were obtained in the analysis. Therefore, the system was classified as a non-pulsator. V948 Her is an important object to understand the nature of non-pulsating stars inside the delta Scuti instability strip.
dc.description.sponsorshipScientific and Technological Research Council (TUBITAK) [120F330]; NASA Explorer Program
dc.description.sponsorshipWe would like to thank the reviewer for useful comments and suggestions that helped to improve the publication. This study has been supported by the Scientific and Technological Research Council (TUBITAK) project through 120F330. The authors thank Dr. Gerald Handler for discussions and his valuable suggestions. The TESS data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). Funding for the TESS mission is provided by the NASA Explorer Program. This paper makes use of data from the first public release of the WASP data (Butters et al. 2010) as provided by the WASP consortium and services at the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.
dc.identifier.doi10.1088/1674-4527/ac37b4
dc.identifier.issn1674-4527
dc.identifier.issn2397-6209
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85125633878
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1674-4527/ac37b4
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25553
dc.identifier.volume22
dc.identifier.wosWOS:000746171800001
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.subject(stars
dc.subject) binaries
dc.subjecteclipsing
dc.subjectstars
dc.subjectfundamental parameters
dc.subjecttechniques
dc.subjectphotometric
dc.titleAnalysis of TESS Field Eclipsing Binary Star V948 Her: A Pulsating or Non-pulsating Star?
dc.typeArticle

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