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dc.contributor.authorVincenzo, Fiorenzo
dc.contributor.authorKobayashi, Chiaki
dc.date.accessioned2018-07-31T12:31:12Z
dc.date.available2018-07-31T12:31:12Z
dc.date.issued2018-02-09
dc.identifier.citationVincenzo , F & Kobayashi , C 2018 , ' Extragalactic archaeology with the C, N, and O chemical abundances ' , Astronomy & Astrophysics , vol. 610 , L16 . https://doi.org/10.1051/0004-6361/201732395
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 13403047
dc.identifier.otherPURE UUID: 374c593a-d4a9-4832-841d-a1195d9763c6
dc.identifier.otherScopus: 2-s2.0-85042864764
dc.identifier.otherORCID: /0000-0002-4343-0487/work/62750425
dc.identifier.urihttp://hdl.handle.net/2299/20300
dc.descriptionReproduced with permission from Astronomy & Astrophysics. © 2018 ESO 4 pages, 4 figures, accepted for publication in A&A Letters
dc.description.abstractWe predict how the C, N, and O abundances within the interstellar medium of galaxies evolve as functions of the galaxy star formation history (SFH). We adopt a hydrodynamical cosmological simulation, focusing on three star-forming disc galaxies with different SFHs. By assuming failed supernovae, we can predict an increasing trend of the gas-phase N/O--O/H abundance diagram, which was not produced in our previous simulations without failed supernovae. At high redshifts, contrary to the predictions of classical chemical evolution models with instantaneous mixing approximation, we find almost flat trends in the N/O--O/H diagram, which are due to the contribution of intermediate-mass stars together with an inhomogeneous chemical enrichment. Finally, we also predict that the average N/O and C/O steadily increase as functions of time, while the average C/N decreases, due to the mass and metallicity dependence of the yields of asymptotic giant branch stars; such variations are more marked during more intense star formation episodes. Our predictions on the CNO abundance evolution can be used to study the SFH of disc galaxies with the James Webb Space Telescope.en
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofAstronomy & Astrophysics
dc.titleExtragalactic archaeology with the C, N, and O chemical abundancesen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361/201732395
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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