The Gaia-ESO Survey: radial distribution of abundances in the Galactic disc from open clusters and young-field stars

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dc.contributor.authorMagrini, L.
dc.contributor.authorRandich, S.
dc.contributor.authorKordopatis, G.
dc.contributor.authorPrantzos, N.
dc.contributor.authorRomano, D.
dc.contributor.authorFfi, A. Chie
dc.contributor.authorLimongi, M.
dc.contributor.authorFrancois, P.
dc.contributor.authorPancino, E.
dc.contributor.authorFriel, E.
dc.contributor.authorBragaglia, A.
dc.contributor.authorTautvaisiene, G.
dc.contributor.authorSpina, L.
dc.contributor.authorOverbeek, J.
dc.contributor.authorCantat Gaudin, T.
dc.contributor.authorDonati, P.
dc.contributor.authorVallenari, A.
dc.contributor.authorSordo, R.
dc.contributor.authorJimenez Esteban, F. M.
dc.contributor.authorTang, B.
dc.contributor.authorDrazdauskas, A.
dc.contributor.authorSousa, S.
dc.contributor.authorDuffau, S.
dc.contributor.authorJofre, P.
dc.contributor.authorGilmore, G.
dc.contributor.authorFeltzing, S.
dc.contributor.authorAlfaro, E.
dc.contributor.authorBensby, T.
dc.contributor.authorFlaccomio, E.
dc.contributor.authorKoposov, S.
dc.contributor.authorLanzafame, A.
dc.contributor.authorSmiljanic, R.
dc.contributor.authorBayo, A.
dc.contributor.authorCarraro, G.
dc.contributor.authorCasey, A. R.
dc.contributor.authorCostado, M. T.
dc.contributor.authorDamiani, F.
dc.contributor.authorFranciosini, E.
dc.contributor.authorHourihane, A.
dc.contributor.authorLardo, C.
dc.contributor.authorLewis, J.
dc.contributor.authorMonaco, L.
dc.contributor.authorMorbidelli, L.
dc.contributor.authorSacco, G.
dc.contributor.authorSbordone, L.
dc.contributor.authorWorley, C. C.
dc.contributor.authorZaggia, S.
dc.date.accessioned2024-01-10T12:43:47Z
dc.date.available2024-01-10T12:43:47Z
dc.date.issued2017
dc.description.abstractContext. The spatial distribution of elemental abundances in the disc of our Galaxy gives insights both on its assembly process and subsequent evolution, and on the stellar nucleogenesis of the different elements. Gradients can be traced using several types of objects as, for instance, (young and old) stars, open clusters, HII regions, planetary nebulae.
dc.description.abstractAims. We aim to trace the radial distributions of abundances of elements produced through different nucleosynthetic channels - the alpha-elements O, Mg, Si, Ca and Ti, and the iron-peak elements Fe, Cr, Ni and Sc - by use of the Gaia-ESO IDR4 results for open clusters and young-field stars.
dc.description.abstractMethods. From the UVES spectra of member stars, we have determined the average composition of clusters with ages > 0.1 Gyr. We derived statistical ages and distances of field stars. We traced the abundance gradients using the cluster and field populations and compared them with a chemo-dynamical Galactic evolutionary model.
dc.description.abstractResults. The adopted chemo-dynamical model, with the new generation of metallicity-dependent stellar yields for massive stars, is able to reproduce the observed spatial distributions of abundance ratios, in particular the abundance ratios of [O/Fe] and [Mg/Fe] in the inner disc (5 kpc < R-GC < 7 kpc), with their differences, that were usually poorly explained by chemical evolution models.
dc.description.abstractConclusions. Oxygen and magnesium are often considered to be equivalent in tracing alpha-element abundances and in deducing, for example, the formation timescales of different Galactic stellar populations. In addition, often [alpha/Fe] is computed combining several alpha-elements. Our results indicate, as expected, a complex and diverse nucleosynthesis of the various alpha-elements, in particular in the high metallicity regimes, pointing towards a different origin of these elements and highlighting the risk of considering them as a single class with common features.
dc.description.funderESF (European Science Foundation) through the GREAT (Gaia Research for European Astronomy Training) Research Network Program
dc.description.funderGaia Research for European Astronomy Training (GREAT-ITN) Marie Curie network through the European Union Seventh Framework Programme
dc.description.funderEuropean Research Council
dc.description.funderResearch Council of Lithuania
dc.description.funderNational Institute for Astrophysics (INAF) through the grant PRIN
dc.description.funderSpacetec-CM project
dc.description.funderproject grant "The New Milky Way" from the Knut and Alice Wallenberg Foundation
dc.description.funderChile's Ministry of Economy, Development, and Tourism's Millennium Science Initiative
dc.fechaingreso.objetodigital2024-05-07
dc.format.extent20 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/201630294
dc.identifier.issn1432-0746
dc.identifier.urihttps://doi.org/10.1051/0004-6361/201630294
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77622
dc.identifier.wosidWOS:000406619100074
dc.information.autorucAstrofísica;Duffau S ;S/I;238151
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherEDP SCIENCES S A
dc.revistaASTRONOMY & ASTROPHYSICS
dc.rightsacceso restringido
dc.subjectGalaxy: abundances
dc.subjectopen clusters and associations: general
dc.subjectOLD OPEN CLUSTERS
dc.subjectCHEMICAL EVOLUTION
dc.subjectMILKY-WAY
dc.subjectELEMENTAL ABUNDANCES
dc.subjectMETALLICITY GRADIENT
dc.subjectSTELLAR EVOLUTION
dc.subjectIA SUPERNOVAE
dc.subjectMASSIVE STARS
dc.subjectKEY TRACERS
dc.subjectTHICK DISK
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleThe Gaia-ESO Survey: radial distribution of abundances in the Galactic disc from open clusters and young-field stars
dc.typeartículo
dc.volumen603
sipa.codpersvinculados238151
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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