The Gaia-ESO Survey Mg-Al anti-correlation in iDR4 globular clusters

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dc.contributor.authorPancino, E.
dc.contributor.authorRomano, D.
dc.contributor.authorTang, B.
dc.contributor.authorTautvaisiene, G.
dc.contributor.authorCasey, A. R.
dc.contributor.authorGruyters, P.
dc.contributor.authorGeisler, D.
dc.contributor.authorSan Roman, I.
dc.contributor.authorRandich, S.
dc.contributor.authorAlfaro, E. J.
dc.contributor.authorBragaglia, A.
dc.contributor.authorFlaccomio, E.
dc.contributor.authorKorn, A. J.
dc.contributor.authorRecio Blanco, A.
dc.contributor.authorSmiljanic, R.
dc.contributor.authorCarraro, G.
dc.contributor.authorBayo, A.
dc.contributor.authorCostado, M. T.
dc.contributor.authorDamiani, F.
dc.contributor.authorJofre, P.
dc.contributor.authorLardo, C.
dc.contributor.authorde laverny, P.
dc.contributor.authorMonaco, L.
dc.contributor.authorMorbidelli, L.
dc.contributor.authorSbordone, L.
dc.contributor.authorSousa, S. G.
dc.contributor.authorVillanova, S.
dc.date.accessioned2024-01-10T14:22:00Z
dc.date.available2024-01-10T14:22:00Z
dc.date.issued2017
dc.description.abstractWe use Gaia-ESO (GES) Survey iDR4 data to explore the Mg-Alanti-correlation in globular clusters that were observed as calibrators, as a demonstration of the quality of Gaia-ESO Survey data and analysis. The results compare well with the available literature, within 0.1 dex or less, after a small (compared to the internal spreads) off set between the UVES and GIRAFFE data of 0.10-0.15 dex was taken into account. In particular, for the first time we present data for NGC 5927, which is one of the most metal-rich globular clusters studied in the literature so far with [Fe/H] = -0.39 +/- 0.04 dex; this cluster was included to connect with the open cluster regime in the Gaia-ESO Survey internal calibration. The extent and shape of the Mg-Al anti-correlation provide strong constraints on the multiple population phenomenon in globular clusters. In particular, we studied the dependency of the Mg-Al anti-correlation extension with metallicity, present-day mass, and age of the clusters, using GES data in combination with a large set of homogenized literature measurements. We find a dependency with both metallicity and mass, which is evident when fitting for the two parameters simultaneously, but we do not find significant dependency with age. We confirm that the Mg-Al anti-correlation is not seen in all clusters, but disappears for the less massive or most metal-rich clusters. We also use our data set to see whether a normal anti-correlation would explain the low [Mg/ff] observed in some extragalactic globular clusters, but find that none of the clusters in our sample can reproduce it; a more extreme chemical composition, such as that of NGC 2419, would be required. We conclude that GES iDR4 data already meet the requirements set by the main survey goals and can be used to study globular clusters in detail, even if the analysis procedures were not specifically designed for them.
dc.description.funderESO Telescopes at the La Silla Paranal Observatory
dc.description.funderUK Science and Technology Facilities Council
dc.description.funderEuropean Union FP7 programme through ERC
dc.description.funderMinistero dell' Istruzione, dell' Universita e della Ricerca (MIUR)
dc.description.funderESF (European Science Foundation) through GREAT Research Network Programme
dc.description.funderInternational Team "The Formation and Evolution of the Galactic Halo"
dc.description.funderSpanish Ministerio de Economia y Competitividad
dc.description.funderFundacao para a Ciencia e Tecnologia (FCT)
dc.description.funderFCT
dc.description.funderPOPH/FSE (EC) by FEDER funding through the programme "Programa Operacional de Factores de Competitividade - COMPETE"
dc.description.funderChilean BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA)
dc.description.funderProyecto Interno of the Universidad Andres Bello
dc.description.funderSpanish MINECO
dc.description.funderFEDER funds
dc.description.funderPolish Ministry of Science and Higher Education
dc.description.funderChile's Ministry of Economy, Development, and Tourism's Millennium Science Initiative
dc.description.funderLever-hulme Trust
dc.description.funderINAF
dc.fechaingreso.objetodigital2024-05-07
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/201730474
dc.identifier.issn1432-0746
dc.identifier.urihttps://doi.org/10.1051/0004-6361/201730474
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79836
dc.identifier.wosidWOS:000402313500112
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.subjectsurveys
dc.subjectstars: abundances
dc.subjectglobular clusters: general
dc.subjectglobular clusters: individual: NGC 5927
dc.subjectUV LEGACY SURVEY
dc.subjectRED GIANT STARS
dc.subjectCHEMICAL-COMPOSITION
dc.subjectHIGH-RESOLUTION
dc.subjectABUNDANCE VARIATIONS
dc.subjectMULTIPLE POPULATIONS
dc.subjectMASSIVE STARS
dc.subjectMILKY-WAY
dc.subjectTELESCOPE
dc.subjectCONSTRAINTS
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleThe Gaia-ESO Survey Mg-Al anti-correlation in iDR4 globular clusters
dc.typeartículo
dc.volumen601
sipa.codpersvinculados243032
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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