Spectroscopic and photometric investigation of some potentially chemically peculiar ? Scuti stars

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dc.authorid0000-0002-9036-7476
dc.authorid0000-0003-3278-5140
dc.contributor.authorKahraman Alicavus, Filiz
dc.contributor.authorAlicavus, Fahri
dc.contributor.authorOzkardes, Burcu
dc.contributor.authorCelik, Eda
dc.date.accessioned2026-02-03T12:00:46Z
dc.date.available2026-02-03T12:00:46Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractInvestigating chemically peculiar pulsating stars is crucial for understanding the pulsation driving mechanism in detail. To reveal the true peculiarity properties of stars, detailed spectroscopic analysis is essential. Therefore, in this study, we focused on delta Scuti stars previously identified as chemically peculiar but which needed comprehensive updated spectroscopic analysis to uncover their chemical abundance structure. We selected 10 targets which have publicly available high-resolution spectroscopic and photometric data. Performing spectral analyses, we determined the spectral classification, atmospheric parameters, and detailed chemical abundance distributions of the selected stars. The pulsation properties were also analyzed using TESS data, and pulsation modes for the highest amplitude pulsation frequencies were derived. We estimated the masses and ages of the targets using the evolutionary tracks and isochrones. As a result of our study, we show that only three targets exhibit chemical peculiarity: AU Scl and FG Eri as metallic A (Am) stars, and HZ Vel as a lambda Bootis. However, others were found to be chemically normal stars. This study show us the importance of chemical abundance analysis in the classification of chemical peculiar stars.
dc.description.sponsorshipanakkale Onsekiz Mart University Research Foundation [FBA-2020-3219]
dc.description.sponsorshipCanakkale Onsekiz Mart University Research foundation
dc.description.sponsorshipNASA Explorer Program
dc.description.sponsorshipThis study has been supported by Canakkale Onsekiz Mart University Research foundation through project FBA-2020-3219. We thank the referee for the review and remarks. 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 work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC; http://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. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.
dc.identifier.doi10.1093/pasj/psaf094
dc.identifier.endpage1151
dc.identifier.issn0004-6264
dc.identifier.issn2053-051X
dc.identifier.issue5
dc.identifier.scopus2-s2.0-105018173005
dc.identifier.scopusqualityQ2
dc.identifier.startpage1135
dc.identifier.urihttps://doi.org/10.1093/pasj/psaf094
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34702
dc.identifier.volume77
dc.identifier.wosWOS:001568880500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.ispartofPublications of the Astronomical Society of Japan
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjectstars: chemically peculiar
dc.subjectstars: fundamental parameters
dc.subjectstars: oscillations
dc.subjectstars: variables: delta Scuti
dc.titleSpectroscopic and photometric investigation of some potentially chemically peculiar ? Scuti stars
dc.typeArticle

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