APOGEE-2 Discovery of a Large Population of Relatively High-metallicity Globular Cluster Debris

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dc.contributor.authorFernández-Trincado, José G.
dc.contributor.authorBeers, Timothy C.
dc.contributor.authorQueiroz, Anna. B. A.
dc.contributor.authorChiappini, Cristina
dc.contributor.authorMinniti, Dante
dc.contributor.authorBarbuy, Beatriz
dc.contributor.authorMajewski, Steven R.
dc.contributor.authorOrtigoza-Urdaneta, Mario
dc.contributor.authorMoni Bidin, Christian
dc.contributor.authorRobin, Annie C.
dc.contributor.authorMoreno, Edmundo
dc.contributor.authorChaves-Velasquez, Leonardo
dc.contributor.authorVillanova, Sandro
dc.contributor.authorLane, Richard R.
dc.contributor.authorPan, Kaike
dc.contributor.authorBizyaev, Dmitry
dc.date.accessioned2025-05-07T15:43:09Z
dc.date.available2025-05-07T15:43:09Z
dc.date.issued2021-09-10
dc.descriptionIndexación: Scopus.
dc.description.abstractWe report the discovery of a new, chemically distinct population of relatively high-metallicity ([Fe/H] > -0.7) red giant stars with super-solar [N/Fe] (⪆+0.75) identified within the bulge, disk, and halo of the Milky Way. This sample of stars was observed during the second phase of the Apache Point Observatory Galactic Evolution Experiment (APOGEE-2); the spectra of these stars are part of the seventeenth Data Release (DR 17) of the Sloan Digital Sky Survey. We hypothesize that this newly identified population was formed in a variety of progenitors, and is likely made up of either fully or partially destroyed metal-rich globular clusters, which we refer to as globular cluster debris (GCD), identified by their unusual photospheric nitrogen abundances. It is likely that some of the GCD stars were probable members of the Gaia-Enceladus-Sausage accretion event, along with clusters formed in situ. © 2021. The American Astronomical Society. All rights reserved.
dc.description.urihttps://iopscience-iop-org.recursosbiblioteca.unab.cl/article/10.3847/2041-8213/ac225b
dc.identifier.citationAstrophysical Journal Letters, Volume 918, Issue 2, 10 September 2021, Article number L37
dc.identifier.doi10.3847/2041-8213/ac225b
dc.identifier.issn2041-8205
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/64539
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rights.licenseAtribución/Reconocimiento 4.0 Internacional CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectGlobular Cluster
dc.subjectStars: Abundances
dc.subjectPhotometry
dc.titleAPOGEE-2 Discovery of a Large Population of Relatively High-metallicity Globular Cluster Debris
dc.typeArtículo
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