The Gaia-ESO Survey: a quiescent Milky Way with no significant dark/stellar accreted disc(a similar to...)

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dc.contributor.authorRuchti, G. R.
dc.contributor.authorRead, J. I.
dc.contributor.authorFeltzing, S.
dc.contributor.authorSerenelli, A. M.
dc.contributor.authorMcMillan, P.
dc.contributor.authorLind, K.
dc.contributor.authorBensby, T.
dc.contributor.authorBergemann, M.
dc.contributor.authorAsplund, M.
dc.contributor.authorVallenari, A.
dc.contributor.authorFlaccomio, E.
dc.contributor.authorPancino, E.
dc.contributor.authorKorn, A. J.
dc.contributor.authorRecio Blanco, A.
dc.contributor.authorBayo, A.
dc.contributor.authorCarraro, G.
dc.contributor.authorCostado, M. T.
dc.contributor.authorDamiani, F.
dc.contributor.authorHeiter, U.
dc.contributor.authorHourihane, A.
dc.contributor.authorJofre, P.
dc.contributor.authorKordopatis, G.
dc.contributor.authorLardo, C.
dc.contributor.authorde Laverny, P.
dc.contributor.authorMonaco, L.
dc.contributor.authorMorbidelli, L.
dc.contributor.authorSbordone, L.
dc.contributor.authorWorley, C. C.
dc.contributor.authorZaggia, S.
dc.date.accessioned2024-01-10T12:09:34Z
dc.date.available2024-01-10T12:09:34Z
dc.date.issued2015
dc.description.abstractAccording to our current cosmological model, galaxies like the Milky Way are expected to experience many mergers over their lifetimes. The most massive of the merging galaxies will be dragged towards the disc plane, depositing stars and dark matter into an accreted disc structure. In this work, we utilize the chemodynamical template developed in Ruchti et al. to hunt for accreted stars. We apply the template to a sample of 4675 stars in the third internal data release from the Gaia-ESO Spectroscopic Survey. We find a significant component of accreted halo stars, but find no evidence of an accreted disc component. This suggests that the Milky Way has had a rather quiescent merger history since its disc formed some 8-10 billion years ago and therefore possesses no significant dark matter disc.
dc.description.funderproject grant 'The New Milky Way' from the Knut and Alice Wallenberg Foundation
dc.description.funderSNF
dc.description.funderMINECO
dc.description.funderGeneralitat of Catalunya
dc.description.funderEuropean Union FP7-PEOPLE-IEF grant
dc.description.funderSwedish National Space Board (SNSB/Rymdstyrelsen)
dc.description.funderChile's Ministry of Economy, Development, and Tourism's Millennium Science Initiative
dc.description.funderEuropean Union FP7 programme through ERC
dc.description.funderLeverhulme Trust
dc.description.funderINAF
dc.description.funderMinistero dell' Istruzione, dell' Universita' e della Ricerca (MIUR)
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stv807
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stv807
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76502
dc.identifier.wosidWOS:000356339300048
dc.information.autorucAstrofísica;Sbordone L ;S/I;243032
dc.issue.numero3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final2887
dc.pagina.inicio2874
dc.publisherOXFORD UNIV PRESS
dc.revistaMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.rightsregistro bibliográfico
dc.subjectsurveys
dc.subjectstars: abundances
dc.subjectstars: kinematics and dynamics
dc.subjectGalaxy: disc
dc.subjectGalaxy: evolution
dc.subjectGalaxy: formation
dc.subjectGENEVA-COPENHAGEN SURVEY
dc.subjectI. GENERAL-CONSIDERATIONS
dc.subjectSOLAR NEIGHBORHOOD
dc.subjectDARK-MATTER
dc.subjectSTELLAR SUBSTRUCTURES
dc.subjectGALAXY FORMATION
dc.subjectGALACTIC BULGE
dc.subjectMETALLICITY RELATION
dc.subjectDYNAMICAL FRICTION
dc.subjectABUNDANCE RATIOS
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleThe Gaia-ESO Survey: a quiescent Milky Way with no significant dark/stellar accreted disc(a similar to...)
dc.typeartículo
dc.volumen450
sipa.codpersvinculados243032
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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