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dc.contributor.authorCasamiquela Floriach, Laia-
dc.contributor.authorCarrera, Ricardo-
dc.contributor.authorBlanco Cuaresma, S.-
dc.contributor.authorJordi i Nebot, Carme-
dc.contributor.authorBalaguer Núñez, María de los Dolores-
dc.contributor.authorPancino, E.-
dc.contributor.authorAnders, Friedrich-
dc.contributor.authorChiappini, C.-
dc.contributor.authorDíaz Pérez, L.-
dc.contributor.authorAguado, D. S.-
dc.contributor.authorAparicio, A.-
dc.contributor.authorGarcía Dias, R.-
dc.contributor.authorHeiter, U.-
dc.contributor.authorMartínez Vázquez, C. E.-
dc.contributor.authorMurabito, S.-
dc.contributor.authorDel Pino Gutiérrez, Amparo-
dc.description.abstractOpen clusters have long been used to study the chemodynamical evolution of the Galactic disc. This requires a homogeneously analysed sample covering a wide range of ages and distances. In this paper, we present the Open Clusters Chemical Abundances from Spanish Observatories (OCCASO) second data release. This comprises a sample of high-resolution (R > 65 000) and high signal-to-noise spectra of 115 red clump stars in 18 open clusters. We derive atmospheric parameters (Teff, log g, ξ), and [Fe/H] abundances using two analysis techniques: equivalent widths and spectral synthesis. A detailed comparison and a critical review of the results of the two methods are made. Both methods are carefully tested between them, with the Gaia FGK benchmark stars, and with an extensive sample of literature values. We perform a membership study using radial velocities and the resulting abundances. Finally, we compare our results with a chemodynamical model of the Milky Way thin disc concluding that the oldest open clusters are consistent with the models only when dynamical effects are taken into account.-
dc.format.extent19 p.-
dc.publisherRoyal Astronomical Society-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society, 2017, vol. 470, num. 4, p. 4363-4381-
dc.rights(c) Casamiquela Floriach, Laia et al., 2017-
dc.subject.classificationCúmuls de galàxies-
dc.subject.otherSpectrum analysis-
dc.subject.otherClusters of galaxies-
dc.titleOCCASO - II. Physical parameters and Fe abundances of red clump stars in 18 open clusters-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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