APOGEE Chemical Abundances of Globular Cluster Giants in the Inner Galaxy

Abstract

We report chemical abundances obtained by SDSS-III/APOGEE for giant stars in five globular clusters located within 2.2 kpc of the Galactic centre. We detect the presence of multiple stellar populations in four of those clusters (NGC 6553, NGC 6528, Terzan 5, and Palomar 6) and find strong evidence for their presence in NGC 6522. All clusters present a significant spread in the abundances of N, C, Na, and Al, with the usual correlations and anti-correlations between various abundances seen in other globular clusters. Our results provide important quantitative constraints on theoretical models for self-enrichment of globular clusters, by testing their predictions for the dependence of yields of elements such as Na, N, C, and Al on metallicity. They also confirm that, under the assumption that field N-rich stars originate from globular cluster destruction, they can be used as tracers of their parental systems in the high- metallicity regime.

10 Pages, 2 Figures, 2 Tables. Accepted for publication in MNRAS

References in corpus (16)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. I. Overview of the Project and Detection of Multiple Stellar Populations
• Origin of multiple stellar populations in globular clusters and their helium enrichment
• Exploring Anticorrelations and Light Element Variations in Northern Globular Clusters Observed by the APOGEE Survey
• New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE survey
• Light, Alpha, and Fe-Peak Element Abundances in the Galactic Bulge
• A General Abundance Problem for All Self-Enrichment Scenarios for the Origin of Multiple Populations in Globular Clusters
• A New Catalog of Globular Clusters in the Milky Way
• Chemical composition and constraints on mass loss for globular clusters in dwarf galaxies: WLM and IKN
• Ceci n'est pas a globular cluster: the metallicity distribution of the stellar system Terzan 5
• The age of the young bulge-like population in the stellar system Terzan5: linking the Galactic bulge to the high-z Universe
• Two Groups of Red Giants with Distinct Chemical Abundances in the Bulge Globular Cluster NGC 6553 Through the Eyes of APOGEE
• VLT-UVES abundance analysis of four giants in NGC 6553
• Studying the evolution of AGB stars in the Gaia epoch
• Infrared High-Resolution Integrated Light Spectral Analyses of M31 Globular Clusters from APOGEE
• Chemical and kinematical properties of Galactic bulge stars surrounding the stellar system Terzan 5

Cited by in corpus (48)

• Target Selection for the SDSS-IV APOGEE-2 Survey
• The Chemical Compositions of Accreted and {\it in situ} Galactic Globular Clusters According to SDSS/APOGEE
• Atypical Mg-poor Milky Way field stars with globular cluster second-generation like chemical patterns
• NGC 6535: the lowest mass Milky Way globular cluster with a Na-O anti-correlation? Cluster mass and age in the multiple population context
• A Deep View of a Fossil Relic in the Galactic Bulge: The Globular Cluster HP1
• The Relationship Between Globular Cluster Mass, Metallicity, and Light Element Abundance Variations
• Chemodynamics of newly identified giants with globular cluster like abundance patterns in the bulge, disk, and halo of the Milky Way
• The inner two degrees of the Milky Way. Evidence of a chemical difference between the Galactic Center and the surrounding inner bulge stellar populations
• Ages of the Bulge globular clusters NGC 6522 and NGC 6626 (M28) from HST Proper-motion-cleaned Color-Magnitude Diagrams
• The COMBS Survey -- II. Distinguishing the Metal-Poor Bulge from the Halo Interlopers
• CAPOS: The bulge Cluster APOgee Survey I. Overview and initial ASPCAP results
• The COMBS survey I: Chemical Origins of Metal-Poor Stars in the Galactic Bulge
• Homogeneous Analysis of Globular Clusters from the APOGEE Survey with the BACCHUS Code $-$ III. $\omega$ Cen
• Blind chemical tagging with DBSCAN: prospects for spectroscopic surveys
• VVV CL001: Likely the Most Metal-Poor Surviving Globular Cluster in the Inner Galaxy
• The mass fraction of halo stars contributed by the disruption of globular clusters in the E-MOSAICS simulations
• The Pristine Inner Galaxy Survey (PIGS) V: a chemo-dynamical investigation of the early assembly of the Milky Way with the most metal-poor stars in the bulge
• The enigmatic globular cluster UKS~1 obscured by the bulge: \textit{H}-band discovery of nitrogen-enhanced stars
• Exploring the Chemical Composition and Double Horizontal Branch of the Bulge Globular Cluster NGC 6569
• APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge
• Cool stars in the Galactic Center as seen by APOGEE: M giants, AGB stars and supergiant stars/candidates
• First evidence of multi-iron sub-populations in the Bulge Fossil Fragment candidate Liller 1
• Spectral properties and detectability of supermassive stars in protoglobular clusters at high redshift
• CAPOS: The bulge Cluster APOgee Survey III. Spectroscopic Tomography of Tonantzintla 2
• Constant light element abundances suggest that the extended P1 in NGC 2808 is not a consequence of CNO-cycle nucleosynthesis
• APOGEE-2S Discovery of Light- and Heavy-Element Abundance Correlations in the Bulge Globular Cluster NGC 6380
• Disentangled Representation Learning for Astronomical Chemical Tagging
• APOGEE-2S view of the globular cluster Patchick 125 (Gran 3). New metallicity and elemental abundances from high-resolution spectroscopy
• Blanco DECam Bulge Survey (BDBS) III: A new view of the double red clump in the Milky Way bulge through luminosity and color distribution
• Difference in chemical composition between the bright and faint red clump stars in the Milky Way bulge
• An investigation of C, N and Na abundances in red giant stars of the Sculptor dwarf spheroidal galaxy
• The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances
• The Pristine survey -- XX: GTC follow-up observations of extremely metal-poor stars identified from Pristine and LAMOST
• Chemical analysis of the Bulge Globular Cluster NGC 6553
• Is Terzan 5 the remnant of a building block of the Galactic bulge? Evidence from APOGEE
• APOGEE view of the globular cluster NGC 6544
• Detailed analysis of a sample of field metal-poor N-rich dwarfs
• CAPOS: The bulge Cluster APOgee Survey V. Elemental abundances of the bulge globular cluster HP 1
• APOGEE-2S Mg-Al anti-correlation of the Metal-Poor Globular Cluster NGC 2298
• Determination of Sodium Abundance Ratio from Low-Resolution Stellar Spectra and Its Applications
• CAPOS: The bulge Cluster APOgee Survey VIII. Final ASPCAP results for all clusters
• Chemical tagging with APOGEE, MUSE, and HST: constraints on the formation of $\omega$ Centauri
• Search strategies for supermassive stars in young clusters and application to nearby galaxies
• Revisited parameters for the twin bulge globular clusters NGC 6528 and NGC 6553
• Spectroscopic analysis of VVV CL001 cluster with MUSE
• Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6
• The COMBS Survey -- III. The Chemodynamical Origins of Metal-Poor Bulge Stars
• Star Cluster Ecology: Revisiting the Origin of Iron and Age Complex Clusters