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The Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705

dc.contributor.authorMAGRINI, L.
dc.contributor.authorRANDICH, S.
dc.contributor.authorROMANO, David
dc.contributor.authorFRIEL, E.
dc.contributor.authorBRAGAGLIA, A.
dc.contributor.authorSMILJANIC, R.
dc.contributor.authorJACOBSON, H.
dc.contributor.authorVALLENARI, A.
dc.contributor.authorTOSI, M.
hal.structure.identifierLaboratoire des Agrégats Moléculaires et Matériaux Inorganiques [LAMMI]
dc.contributor.authorSPINA, L.
dc.contributor.authorDONATI, P.
dc.contributor.authorMAIORCA, E.
dc.contributor.authorCANTAT-GAUDIN, T.
dc.contributor.authorSORDO, R.
dc.contributor.authorBERGEMANN, M.
dc.contributor.authorDAMIANI, F.
dc.contributor.authorTAUTVAIŠIENĖ, G.
dc.contributor.authorJIMENEZ-ESTEBAN, F.
hal.structure.identifierM2A 2014
dc.contributor.authorBLANCO-CUARESMA, S.
dc.contributor.authorGEISLER, D.
dc.contributor.authorMOWLAVI, N.
dc.contributor.authorMUÑOZ, C.
dc.contributor.authorROMAN, I. San
hal.structure.identifierM2A 2014
dc.contributor.authorSOUBIRAN, C.
dc.contributor.authorVILLANOVA, S.
dc.contributor.authorZAGGIA, S.
dc.contributor.authorGILMORE, G.
dc.contributor.authorASPLUND, M.
dc.contributor.authorFELTZING, S.
dc.contributor.authorJEFFRIES, R.
dc.contributor.authorBENSBY, T.
dc.contributor.authorFRANÇOIS, P.
dc.contributor.authorKOPOSOV, S.
hal.structure.identifierDepartment of Astronomy and Space Physics [Uppsala]
dc.contributor.authorKORN, A. J.
dc.contributor.authorFLACCOMIO, E.
dc.contributor.authorPANCINO, E.
dc.contributor.authorRECIO-BLANCO, A.
dc.contributor.authorSACCO, G.
dc.contributor.authorCOSTADO, M. T.
dc.contributor.authorFRANCIOSINI, E.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorJOFRE, P.
dc.contributor.authorHILL, V.
dc.contributor.authorHEITER, U.
dc.contributor.authorHOURIHANE, A.
dc.contributor.authorJACKSON, R.
dc.contributor.authorLARDO, C.
dc.contributor.authorMORBIDELLI, L.
dc.contributor.authorLEWIS, J.
dc.contributor.authorLIND, K.
dc.contributor.authorMASSERON, T.
dc.contributor.authorDE LAVERNY, P.
dc.contributor.authorPRISINZANO, L.
dc.contributor.authorWORLEY, C.
dc.date.created2013-12-23
dc.date.issued2014
dc.identifier.issn0004-6361
dc.description.abstractEnOpen clusters are key tools to study the spatial distribution of abundances in the disk and their evolution with time. Using the first release of stellar parameters and abundances of the Gaia-ESO Survey, we analyse the chemical properties of stars in three old/intermediate-age open clusters, namely NGC 6705, NGC 4815, and Trumpler 20, all located in the inner part of the Galactic disk at Galactocentric radius R$_{GC}\sim$7 kpc, aiming at proving their homogeneity and at comparing them with the field population. We study the abundance ratios of elements belonging to two different nucleosynthetic channels: $\alpha$-elements and iron-peak elements. The main results can be summarised as follows: i) cluster members are chemically homogeneous within 3-$\sigma$ in all analysed elements; ii) the three clusters have comparable [El/Fe] patters within $\sim$1-$\sigma$, but they differ in their global metal content [El/H], with NGC 4815 having the lowest metallicity. Their [El/Fe] ratios show differences and analogies with those of the field population, both in the solar neighbourhood and in the bulge/inner disk; iii) comparing the abundance ratios with the results of two chemical evolution models and with field star abundance distributions, we find that the abundance ratios of Mg, Ni, Ca in NGC 6705 might require an inner birthplace, implying a subsequent variation of its R$_{GC}$ during its lifetime, consistent with previous orbit determination. The full dataset of the Gaia-ESO Survey will be a superlative tool to constrain the chemical evolution of our Galaxy by disentangling different formation and evolution scenarios.
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enThe Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201322977
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.identifier.arxiv1312.6472
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageid.A44
bordeaux.volume563
bordeaux.peerReviewedoui
hal.identifierhal-00949270
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00949270v1
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