APOGEE chemical abundance patterns of the massive milky way satellites

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dc.contributor.authorHasselquist, Sten
dc.contributor.authorHayes, Christian R
dc.contributor.authorLian, Jianhui
dc.contributor.authorWeinberg, David H.
dc.contributor.authorZasowski, Gail
dc.contributor.authorHorta, Danny
dc.contributor.authorBeaton, Rachael
dc.contributor.authorFeuillet, Diane K.
dc.contributor.authorGarro, Elisa R.
dc.contributor.authorGallart, Carme
dc.contributor.authorSmith, Verne V.
dc.contributor.authorHoltzman, Jon A.
dc.contributor.authorMinniti, Dante
dc.contributor.authorLacerna, Ivan
dc.contributor.authorShetrone, Matthew
dc.contributor.authorJönsson, Henrik
dc.contributor.authorCioni, Maria-Rosa L.
dc.contributor.authorFillingham, Sean P.
dc.contributor.authorCunha, Katia
dc.contributor.authorO'Connell, Robert
dc.contributor.authorFernández-Trincado, José G.
dc.contributor.authorMunoz, Ricardo R.
dc.contributor.authorSchiavon, Ricardo
dc.contributor.authorAlmeida, Andres
dc.contributor.authorAnguiano, Borja
dc.contributor.authorBeers, Timothy C.
dc.contributor.authorBizyaev, Dmitry
dc.contributor.authorBrownstein, Joel R.
dc.contributor.authorCohen, Roger E.
dc.contributor.authorFrinchaboy, Peter
dc.contributor.authorGarcía-Hernández, D.A.
dc.contributor.authorGeisler, Doug
dc.contributor.authorLane, Richard R.
dc.contributor.authorMajewski, Steven R
dc.contributor.authorNidever, David L.
dc.contributor.authorNitschelm, Christian
dc.contributor.authorPovick, Joshua
dc.contributor.authorPrice-Whelan, Adrian
dc.contributor.authorRoman-Lopes, Alexandre
dc.contributor.authorRosado, Margarita
dc.contributor.authorSobeck, Jennifer
dc.contributor.authorStringfellow, Guy
dc.contributor.authorValenzuela, Octavio
dc.contributor.authorVillanova, Sandro
dc.contributor.authorVincenzo, Fiorenzo
dc.date.accessioned2023-04-19T15:18:03Z
dc.date.available2023-04-19T15:18:03Z
dc.date.issued2021-12
dc.descriptionIndexación: Scopus.es
dc.description.abstractThe SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey has obtained high resolution spectra for thousands of red giant stars distributed among the massive satellite galaxies of the Milky Way (MW): the Large and Small Magellanic Clouds (LMC/SMC), the Sagittarius Dwarf Galaxy (Sgr), Fornax (Fnx), and the now fully disrupted Gaia Sausage/Enceladus (GSE) system. We present and analyze the APOGEE chemical abundance patterns of each galaxy to draw robust conclusions about their star formation histories, by quantifying the relative abundance trends of multiple elements (C, N, O, Mg, Al, Si, Ca, Fe, Ni, and Ce), as well as by fitting chemical evolution models to the [α/Fe]–[Fe/H] abundance plane for each galaxy. Results show that the chemical signatures of the starburst in the Magellanic Clouds (MCs) observed by Nidever et al. in the α-element abundances extend to C+N, Al, and Ni, with the major burst in the SMC occurring some 3–4 Gyr before the burst in the LMC. We find that Sgr and Fnx also exhibit chemical abundance patterns suggestive of secondary star formation epochs, but these events were weaker and earlier (∼5–7 Gyr ago) than those observed in the MCs. There is no chemical evidence of a second starburst in GSE, but this galaxy shows the strongest initial star formation as compared to the other four galaxies. All dwarf galaxies had greater relative contributions of AGB stars to their enrichment than the MW. Comparing and contrasting these chemical patterns highlight the importance of galaxy environment on its chemical evolution.es
dc.description.urihttps://iopscience-iop-org.recursosbiblioteca.unab.cl/article/10.3847/1538-4357/ac25f9
dc.identifier.citationAstrophysical Journal Volume 923, Issue 220 December 2021 Article number 172es
dc.identifier.doi10.3847/1538-4357/ac25f9
dc.identifier.issn0004-637X
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/48718
dc.language.isoenes
dc.publisherIOP Publishing Ltdes
dc.rights.licenseAtribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectDwarf galaxies (416)es
dc.subjectGalaxies (573)es
dc.subjectSagittarius Dwarf Spheroidal Galaxy (1423)es
dc.subjectLarge Magellanic Cloud (903)es
dc.subjectMagellanic Clouds (990)es
dc.subjectSmall Magellanic Cloud (1468)es
dc.subjectFornax Dwarf Spheroidal Galaxy (548)es
dc.subjectGalaxy Chemical Evolution (580)es
dc.subjectChemical Enrichment (225)es
dc.subjectChemical Abundances (224)es
dc.subjectAbundance Ratios (11)es
dc.subjectGalaxy Abundances (574)es
dc.titleAPOGEE chemical abundance patterns of the massive milky way satelliteses
dc.typeArtículoes
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