The chemical composition of red giant stars in four intermediate-age clusters of the Large Magellanic Cloud

Abstract

This paper presents the chemical abundance analysis of a sample of 27 red giant stars located in 4 popolous intermediate-age globular clusters in the Large Magellanic Cloud, namely NGC 1651, 1783, 1978 and 2173. This analysis is based on high-resolution (R ~ 47000) spectra obtained with the UVES@VLT spectrograph. For each cluster we derived up to 20 abundance ratios sampling the main chemical elemental groups, namely light odd-Z, alpha, iron-peak and neutron-capture elements. All the analysed abundance patterns behave similarly in the 4 clusters and also show negligible star-to-star scatter within each cluster. We find [Fe/H]=-0.30+-0.03, -0.35+-0.02, -0.38+-0.02 and -0.51+-0.03 dex for NGC 1651, 1783, 1978 and 2173, respectively. The measurement of light odd-Z nuclei gives slightly subsolar [Na/Fe] and a more significant [Al/Fe] depletion (~ -0.50 dex). The [alpha / Fe] abundance ratios are nearly solar, while the iron-peak elements well trace that one of the iron. s-process elements behave in a peculiar way: light s-elements give subsolar [Y/Fe] and [Zr/Fe] abundance ratios, while heavy s-elements give enhanced [Ba/Fe], [La/Fe] and [Nd/Fe] with respect to the solar values. Also, the [Eu/Fe] abundance ratio turns out to be enhanced (~ 0.4 dex).

arXiv commentAccepted for publication on AJ

References in corpus (41)

• Nucleosynthesis in Chandrasekhar Mass Models for Type Ia Supernovae and Constraints on Progenitor Systems and Burning-Front Propagation
• Neutron capture in low mass Asymptotic Giant Branch stars: cross sections and abundance signatures
• Stellar Chemical Signatures And Hierarchical Galaxy Formation
• The Chemical Compositions of Galactic Disk F and G Dwarfs
• Galactic Evolution of Sr, Y, Zr: A Multiplicity of Nucleosynthetic Processes
• Neutron-Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal-Poor Giants
• The Galactic Thick Disk Stellar Abundances
• Abundances for metal-poor stars with accurate parallaxes I. Basic data
• The rates of Type Ia Supernovae. I. Analytical Formulations
• The exotic chemical composition of the Sagittarius dwarf Spheroidal galaxy
• Chemical Evolution of the Magellanic Clouds: analytical models
• Metal Abundances of Red Clump Stars in Open Clusters: I. NGC 6819
• Spectroscopy of Red Giants in the LMC Bar: Abundances, Kinematics, and the Age-Metallicity Relation
• A Search for Old Star Clusters in the Large Magellanic Cloud
• The Ital-FLAMES survey of the Sagittarius dwarf Spheroidal galaxy. I. Chemical abundances of bright RGB stars
• Formation and evolution of the Magellanic Clouds. I.Origin of structural, kinematical, and chemical properties of the Large Magellanic Cloud
• Neutron Capture Elements in s-Process-Rich, Very Metal-Poor Stars
• Calcium II Triplet Spectroscopy of LMC Red Giants. I. Abundances and Velocities for a Sample of Populous Clusters
• Elemental abundances in the atmosphere of clump giants
• A Review of the Distance and Structure of the Large Magellanic Cloud
• Chemical Compositions of Red Giant Stars in Old Large Magellanic Cloud Globular Clusters
• Abundance Analysis of Turn-Off and Early Subgiant Stars in the Globular Cluster 47 Tuc (NGC 104)
• Chemical Abundances and Kinematics in Globular Clusters and Local Group Dwarf Galaxies and Their Implications for Formation Theories of the Galactic Halo
• Towards the absolute planes: a new calibration of the Bolometric Corrections and Temperature scales for Population II Giants
• Chemical Abundances in Twelve Red Giants of the Large Magellanic Cloud from High-Resolution Infrared Spectroscopy
• Na-O Anticorrelation and Horizontal Branches. V. The Na-O anticorrelation in NGC 6441 from Giraffe spectra
• Explaining the mysterious age gap of globular clusters in the Large Magellanic Cloud
• High-resolution spectroscopy of RGB stars in the Sagittarius Streams. I. Radial velocities and chemical abundances
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• Na-O Anticorrelation And HB. III. The abundances of NGC 6441 from FLAMES-UVES spectra
• HST Colour-Magnitude Diagrams of Six Old Globular Clusters in the LMC
• Testing intermediate-age stellar evolution models with VLT photometry of LMC clusters. I. The data
• Calibrated stellar models for metal-poor population
• The globular cluster NGC 1978 in the Large Magellanic Cloud
• The luminosity function of the Large Magellanic Cloud globular cluster NGC 1866
• Stellar Evolutionary Models for Magellanic Clouds
• Photometry of Magellanic Cloud clusters with the Advanced Camera for Surveys - II. The unique LMC cluster ESO 121-SC03
• Red Giant stars in the Large Magellanic Cloud clusters
• Probing the RGB-phase transition: Near-IR photometry of six intermediate age LMC clusters
• K-Band Red Clump Distances to the LMC Clusters Hodge 4 and NGC 1651

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