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dc.contributor.authorKobayashi, Chiaki
dc.contributor.authorNakasato, Naohito
dc.date.accessioned2012-04-30T23:48:04Z
dc.date.available2012-04-30T23:48:04Z
dc.date.issued2011-03-01
dc.identifier.citationKobayashi , C & Nakasato , N 2011 , ' Chemodynamical simulations of the Milky Way galaxy ' , The Astrophysical Journal , vol. 729 , no. 1 , 16 . https://doi.org/10.1088/0004-637X/729/1/16
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 811032
dc.identifier.otherPURE UUID: 15656442-f23c-4639-8070-9a64882e0968
dc.identifier.otherWOS: 000287255300016
dc.identifier.otherScopus: 79952137161
dc.identifier.otherORCID: /0000-0002-4343-0487/work/62750473
dc.identifier.urihttp://hdl.handle.net/2299/8460
dc.description.abstractWe present chemodynamical simulations of a Milky-Way-type galaxy using a self-consistent hydrodynamical code that includes supernova feedback and chemical enrichment, and predict the spatial distribution of elements from oxygen to zinc. In the simulated galaxy, the kinematical and chemical properties of the bulge, disk, and halo are consistent with the observations. The bulge formed from the assembly of subgalaxies at z greater than or similar to 3, and has higher [alpha/Fe] ratios because of the small contribution from Type Ia supernovae. The disk formed with a constant star formation over 13 Gyr, and shows a decreasing trend of [alpha/Fe] and increasing trends of [(Na, Al, Cu, Mn)/Fe] against [Fe/H]. However, the thick disk stars tend to have higher [alpha/Fe] and lower [Mn/Fe] than thin disk stars. We also predict the frequency distribution of elemental abundance ratios as functions of time and location, which can be directly compared with galactic archeology projects such as HERMES.en
dc.format.extent16
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.subjectGalaxy: abundances
dc.subjectGalaxy: evolution
dc.subjectGalaxy: formation
dc.subjectmethods: numerical
dc.subjectsupernovae: general
dc.subjectMETAL-POOR STARS
dc.subjectCORE-COLLAPSE SUPERNOVAE
dc.subjectGALACTIC CHEMICAL EVOLUTION
dc.subjectDARK-MATTER SUBSTRUCTURE
dc.subjectGENEVA-COPENHAGEN SURVEY
dc.subjectIA SUPERNOVAE
dc.subjectSOLAR NEIGHBORHOOD
dc.subjectELLIPTIC GALAXIES
dc.subjectROTATION CURVE
dc.subjectDISK STARS
dc.titleChemodynamical simulations of the Milky Way galaxyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1088/0004-637X/729/1/16
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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