The Gaia-ESO Survey: Detailed abundances in the metal-poor globular cluster NGC 4372

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dc.contributor.authorSan Roman, I.
dc.contributor.authorMunoz, C.
dc.contributor.authorGeisler, D.
dc.contributor.authorVillanova, S.
dc.contributor.authorKacharov, N.
dc.contributor.authorKoch, A.
dc.contributor.authorCarraro, G.
dc.contributor.authorTautvaisiene, G.
dc.contributor.authorVallenari, A.
dc.contributor.authorAlfaro, E. J.
dc.contributor.authorBensby, T.
dc.contributor.authorFlaccomio, E.
dc.contributor.authorFrancois, P.
dc.contributor.authorKorn, A. J.
dc.contributor.authorPancino, E.
dc.contributor.authorRecio Blanco, A.
dc.contributor.authorSmiljanic, R.
dc.contributor.authorBergemann, M.
dc.contributor.authorCostado, M. T.
dc.contributor.authorDamiani, F.
dc.contributor.authorHeiter, U.
dc.contributor.authorHourihane, A.
dc.contributor.authorJofre, P.
dc.contributor.authorLardo, C.
dc.contributor.authorde Laverny, P.
dc.contributor.authorMasseron, T.
dc.contributor.authorMorbidelli, L.
dc.contributor.authorSbordone, L.
dc.contributor.authorSousa, S. G.
dc.contributor.authorWorley, C. C.
dc.contributor.authorZaggia, S.
dc.date.accessioned2024-01-10T14:21:59Z
dc.date.available2024-01-10T14:21:59Z
dc.date.issued2015
dc.description.abstractWe present the abundance analysis for a sample of 7 red giant branch stars in the metal-poor globular cluster NGC 4372 based on UVES spectra acquired as part of the Gaia-ESO Survey. This is the first extensive study of this cluster from high-resolution spectroscopy. We derive abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, Fe, Cr, Ni, Y, Ba, and La. We find a metallicity of [Fe/H] = -2.19 +/- 0.03 and find no evidence of any metallicity spread. This metallicity makes NGC 4372 one of the most metal-poor Galactic globular clusters. We also find an a-enhancement typical of halo globular clusters at this metallicity. Significant spreads are observed in the abundances of light elements. In particular, we find a Na-O anticorrelation. Abundances of O are relatively high compared with other globular clusters. This could indicate that NGC 4372 was formed in an environment with high O for its metallicity. A Mg-Al spread is also present that spans a range of more than 0.5 dex in Al abundances. Na is correlated with Al and Mg abundances at a lower significance level. This pattern suggests that the Mg-Al burning cycle is active. This behavior can also be seen in giant stars of other massive, metal-poor clusters. A relation between light and heavy s-process elements has been identified.
dc.description.funderLa Silla Paranal Observatory
dc.description.funderUK Science and Technology Facilities Council
dc.description.funderEuropean Union FP7 program through ERC
dc.description.funderLeverhulme Trust
dc.description.funderINAF
dc.description.funderMinistero dell' Istruzione, dell' Universita' e della Ricerca (MIUR)
dc.description.funderESF (European Science Foundation) through the GREAT Research Network Program
dc.description.funderGemini-CONICYT project
dc.description.funderCONICYT-PCHA/Doctorado Nacional
dc.description.funderChilean BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA)
dc.description.funderFondecyt
dc.description.funderDeutsche Forschungsgemeinschaft
dc.description.funderSwedish National Space Board (SNSB)
dc.description.funderFundacao para a Ciencia e Tecnologia, FCT (Portugal)
dc.description.funderPOPH/FSE (EC)
dc.fechaingreso.objetodigital2024-05-02
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/201525722
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/201525722
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79833
dc.identifier.wosidWOS:000358877100018
dc.information.autorucAstrofísica;Sbordone L;S/I;243032
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherEDP SCIENCES S A
dc.revistaASTRONOMY & ASTROPHYSICS
dc.rightsacceso restringido
dc.subjectglobular clusters: individual: NGC 4372
dc.subjectstars: abundances
dc.subjectDWARF SPHEROIDAL GALAXY
dc.subjectASYMPTOTIC GIANT BRANCH
dc.subjectMULTIPLE STELLAR POPULATIONS
dc.subjectNEUTRON-CAPTURE ELEMENTS
dc.subjectCOLOR-MAGNITUDE DIAGRAM
dc.subjectCHEMICAL-COMPOSITION
dc.subjectBRIGHT GIANTS
dc.subjectMAIN-SEQUENCE
dc.subjectRED GIANTS
dc.subjectMILKY-WAY
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleThe Gaia-ESO Survey: Detailed abundances in the metal-poor globular cluster NGC 4372
dc.typeartículo
dc.volumen579
sipa.codpersvinculados243032
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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