{"paper":{"title":"The Gaia-ESO Survey: the chemical structure of the Galactic discs from the first internal data release","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Bragaglia, A. C. Lanzafame, A. Hourihane, A. Recio-Blanco, A. Vallenari, C. Allende Prieto, C. C. Worley, C. Lardo, D. Romano, E. Flaccomio, E. J. Alfaro, E. Maiorca, E. Pancino, F. Damiani, G. Carraro, G. Gilmore, G. Kordopatis, G. Micela, G. Tautvai\\v{s}iene, L. Magrini, L. Morbidelli, L. Sbordone, M. Bergemann, M. T. Costado, P. de Laverny, P. Jofr\\'e, R. Smiljanic, S. Feltzing, S. G. Sousa, S. Randich, S. Zaggia, T. Bensby, V. Hill, \\v{S}. Mikolaitis","submitted_at":"2014-08-28T11:27:36Z","abstract_excerpt":"Most high-resolution spectroscopic studies of the Galactic discs were mostly confined to objects in the solar vicinity. Here we aim at enlarging the volume in which individual chemical abundances are used to characterise both discs, using the first internal data release of the Gaia-ESO survey. We derive and discuss the abundances of eight elements (Mg, Al, Si, Ca, Ti, Fe, Cr, Ni, and Y). The trends of these elemental abundances with iron are very similar to those in the solar neighbourhood. We find a natural division between alpha-rich and alpha-poor stars, best seen in the bimodality of the ["},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.6687","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}