A Comparison of Elemental Abundance Ratios in Globular Clusters, Field Stars, and Dwarf Spheroidal Galaxies

Abstract

We have compiled a sample of globular clusters with high quality stellar abundances from the literature to compare to the chemistries of stars in the Galaxy and those in dwarf spheroidal galaxies. Of the 45 globular clusters examined, 29 also have kinematic information. Most of the globular clusters belong to the Galactic halo, however a signficant number have disk kinematics or belong to the bulge. Focusing on the [alpha/Fe] and light r-process element ratios, we find that most globular cluster stars mimic those of the field stars of similar metallicities, and neither clearly resembles the presently available stellar abundances in the dwarf galaxies (including the globular clusters in the Large Magellanic Cloud). The exceptions to these general elemental ratio comparisons are already known in the literature, e.g., omega Centauri, Palomar 12, and Terzan 7 associated with the Sagittarius remnant, and Ruprecht 106 which has a high radial velocity and low [alpha/Fe] ratio. A few other globular clusters show more marginal peculiarities. The most notable one being the halo cluster M68 which has a high Galactocentric rotational velocity, a slightly younger age, and a unique [Si/Ti] ratio. The [Si/Ti] ratios decrease with increasing [Fe/H] at intermediate metallicities, which is consistent with very massive stars playing a larger role in the early chemical evolution of the Galaxy. The chemical similarities between globular clusters and field stars with [Fe/H]<-1.0 suggests a shared chemical history in a well mixed early Galaxy. The differences to the published chemistries of stars in the dwarf spheroidal galaxies suggests that neither the globular clusters, halo stars, nor thick disk stars had their origins in small isolated systems like the present-day Milky Way dwarf satellites.

24 pages, including 10 figures (8 are in color) and 4 tables; Accepted for publication in the Astronomical Journal

References in corpus (77)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• A Universal Density Profile from Hierarchical Clustering
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Dwarf Galaxies of the Local Group
• The New Galaxy: Signatures of its Formation
• Local stellar kinematics from Hipparcos data
• Neutron capture in low mass Asymptotic Giant Branch stars: cross sections and abundance signatures
• Stellar Chemical Signatures And Hierarchical Galaxy Formation
• Kinematics of Metal-Poor Stars in the Galaxy. III. Formation of the Stellar Halo and Thick Disk as Revealed from a Large Sample of Non-Kinematically Selected Stars
• 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 O-Na and Mg-Al Anticorrelations in Turn-Off and early Subgiants in Globular Clusters
• Abundance Patterns in the Draco, Sextans and Ursa Minor Dwarf Spheroidal Galaxies
• VLT/UVES Abundances in Four Nearby Dwarf Spheroidal Galaxies: I. Nucleosynthesis and Abundance Ratios
• Abundances and Kinematics of Field Halo and Disk Stars I: Observational Data and Abundance Analysis
• Two distinct ancient components in the Sculptor Dwarf Spheroidal Galaxy: First Results from DART
• A dwarf galaxy remnant in Canis Major: the fossil of an in-plane accretion onto the Milky Way
• The Kinematics, Orbit, and Survival of the Sagittarius Dwarf Spheroidal Galaxy
• Hierarchical galaxy formation and substructure in the Galaxy's stellar halo
• Star-to-Star Abundance Variations among Bright Giants in the Mildly Metal-Poor Globular Cluster M4
• Galactic chemical evolution of heavy elements: from Barium to Europium
• VLT/UVES Abundances in Four Nearby Dwarf Spheroidal Galaxies: II. Implications for Understanding Galaxy Evolution
• Homogeneous age dating of 55 Galactic globular clusters. Clues to the Galaxy formation mechanisms
• Vertical distribution of Galactic disk stars I - Kinematics and metallicity
• Galactic Globular Cluster Relative Ages. II
• Chemical Evolution of the Magellanic Clouds: analytical models
• Abundances in a Large Sample of Stars in M3 and M13
• Galactic Globular Cluster Relative Ages
• Comparing the properties of local globular cluster systems: implications for the formation of the Galactic halo
• Abundances in Stars from the Red Giant Branch Tip to Near the Main Sequence Turn Off in M71: III. Abundance Ratios
• New evidence for the complex struscture of the RGB of Omega Cen
• New Analyses of Star-to-Star Abundance Variations Among Bright Giants in the Mildly Metal-Poor Globular Cluster M5
• 'Sculptor'-ing the Galaxy? The Chemical Compositions of Red Giants in the Sculptor Dwarf Spheroidal Galaxy
• A Structural and Dynamical Study of Late-Type, Edge-On Galaxies: II. Vertical Color Gradients and the Detection of Ubiquitous Thick Disks
• Sagittarius Tidal Debris 90 kpc from the Galactic Center
• A comprehensive model for the Monoceros tidal stream
• The Chemical Composition Contrast between M3 and M13 Revisited: New Abundances for 28 Giant Stars in M3
• The Predicted Metallicity Distribution of Stars in Dwarf Spheroidal Galaxies
• Pal 12 As A Part of the Sgr Stream; the Evidence From Abundance Ratios
• Mg isotopic ratios in giant stars of the globular cluster NGC 6752
• Deep Hubble Space Telescope Imaging of IC 1613 II. The Star Formation History
• Abundance Analysis of Turn-Off and Early Subgiant Stars in the Globular Cluster 47 Tuc (NGC 104)
• The Sgr dSph hosts a metal-rich population
• The Emergence of the Thick Disk in a CDM Universe II: Colors and Abundance Patterns
• WFPC2 Observations of Leo A: A Predominantly Young Galaxy within the Local Group
• Abundances in Stars from the Red Giant Branch Tip to Near the Main Sequence Turn Off in M5
• An abundance analysis for four Red Horizontal Branch Stars in the extremely metal rich globular cluster NGC 6528
• High resolution spectroscopy of metal rich giants in omega Cen: first indication of SNe Ia enrichment
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• The Metal Content of the Bulge Globular Cluster NGC 6528
• Family ties: abundances in Terzan 7, a Sgr dSph globular cluster
• Tracing the Sgr Stream with 2MASS. Detection of Stream stars around Outer Halo Globular Clusters
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• Heavy elements and chemical enrichment in globular clusters
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• Hydra Observations of Aluminum Abundances in the Red Giants of the Globular Clusters M80 and NGC 6752
• Abundance Ratios in the Galactic Bulge and Super Metal-Rich Type II Nucle osynthesis
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• An updated survey of globular clusters in M 31. III. A spectroscopic metallicity scale for the Revised Bologna Catalog
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• The Detailed Chemical Properties of M31 Star Clusters I. Fe, Alpha and Light Elements
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