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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/51883
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dc.creatorNacizo Holandapt_BR
dc.creatorNatalia Drakept_BR
dc.creatorWagner José Corradi Barbosapt_BR
dc.creatorF. A. Ferreirapt_BR
dc.creatorFrancisco Maiapt_BR
dc.creatorLaura Magrinipt_BR
dc.creatorJ. R. P. da Silvapt_BR
dc.creatorC. B. Pereirapt_BR
dc.date.accessioned2023-04-12T20:54:23Z-
dc.date.available2023-04-12T20:54:23Z-
dc.date.issued2021-
dc.citation.volume508pt_BR
dc.citation.issue4pt_BR
dc.citation.spage5786pt_BR
dc.citation.epage5801pt_BR
dc.identifier.doihttps://doi.org/10.1093/mnras/stab2836pt_BR
dc.identifier.issn00358711pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/51883-
dc.description.resumoWe present the results of a chemical analysis of fast and anomalous rotator giants members of the young open cluster NGC6124. For this purpose, we carried out abundances of the mixing sensitive species such as Li, C, N, Na, and 12C/13C isotopic ratio, as well as other chemical species for a sample of four giants among the seven observed ones. This study is based on standard spectral analysis technique using high-resolution spectroscopic data. We also performed an investigation of the rotational velocity (v sin i) once this sample exhibits abnormal values–giant stars commonly present rotational velocities of few kms−1. In parallel, we have performed a membership study, making use of the third data release from ESA Gaia mission. Based on these data, we estimated a distance of d = 630pc and an age of 178Myr through isochrone fitting. After that procedure, we matched all the information raised and investigated the evolutionary stages and thermohaline mixing model through of spectroscopic Teff and log g and mixing tracers, such as 12C/13C and Na, of the studied stars. We derived a low mean metallicity of [Fe/H] = −0.13 ± 0.05 and a modest enhancement of the elements created by the s-process, such as Y, Zr, La, Ce, and Nd, which is in agreement with what has already been reported in the literature for young clusters. The giants analysed have homogeneous abundances, except for lithium abundance [log (Li)NLTE = 1.08 ± 0.42] and this may be associated with a combination of mechanisms that act increasing or decreasing lithium abundances in stellar atmospheres.pt_BR
dc.languageporpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.rightsAcesso Restritopt_BR
dc.subjectStars:abundancespt_BR
dc.subjectOtars:fundamentalparameterspt_BR
dc.subjectGalaxy:discpt_BR
dc.subjectOpen clusterspt_BR
dc.subjectAssociations: individual: NGC 6124pt_BR
dc.subject.otherEstrelaspt_BR
dc.subject.otherGalaxias - Aglomeradospt_BR
dc.titleNGC 6124: a young open cluster with anomalous-and fast-rotating giant starspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://academic.oup.com/mnras/article/508/4/5786/6381707pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8504-6248pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4842-8834pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5150-5282pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4998-4624pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4486-6802pt_BR
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