O and Na abundance patterns in open clusters of the Galactic disk
arXiv:0905.4354 · doi:10.1051/0004-6361/200912279
Abstract
Aims. A global O-Na abundance anti-correlation is observed in globular clusters, which is not present in the Galactic field population. Open clusters are thought to be chemically homogeneous internally. We aim to explore the O and Na abundance pattern among the open cluster population of the Galactic disk. Methods. We combine open cluster abundance ratios of O and Na from high-resolution spectroscopic studies in the literature and normalize them to a common solar scale. We compare the open cluster abundances against the globular clusters and disk field. Results. We find that the different environments show different abundance patterns. The open clusters do not show the O-Na anti-correlation at the extreme O-depletion / Na-enhancement as observed in globular clusters. Furthermore, the high Na abundances in open clusters do not match the disk field stars. If real, it may be suggesting that the dissolution of present-day open clusters is not a significant contribution to building the Galactic disk. Large-scale homogeneous studies of clusters and field will further confirm the reality of the Na enhancement.
To appear in Astronomy and Astrophysics Letters
References in corpus (28)
- Embedded Clusters in Molecular Clouds
- Fast rotating massive stars and the origin of the abundance patterns in galactic globular clusters
- The O-Na and Mg-Al Anticorrelations in Turn-Off and early Subgiants in Globular Clusters
- Predictions for self-pollution in globular cluster stars
- Massive star formation in 100,000 years from turbulent and pressurized molecular clouds
- An analytical description of the disruption of star clusters in tidal fields with an application to Galactic open clusters
- Abundances of Baade's Window Giants from Keck/HIRES Spectra: II. The Alpha- and Light Odd Elements
- Elemental Abundance Ratios in Stars of the Outer Galactic Disk. I. Open Clusters
- Origin of the abundance patterns in Galactic globular clusters: constraints on dynamical and chemical properties of globular clusters
- Abundances in Stars from the Red Giant Branch Tip to Near the Main Sequence Turn Off in M71: III. Abundance Ratios
- Origin of multiple stellar populations in globular clusters and their helium enrichment
- Na-O Anticorrelation And HB I. The Na-O anticorrelation in NGC 2808
- An abundance analysis of bright giants in the globular cluster NGC 1851
- Abundance trends in kinematical groups of the Milky Way's disk
- Elemental abundances in the atmosphere of clump giants
- Element abundances of unevolved stars in the open cluster M 67
- Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging
- Chemical Homogeneity in the Hyades
- Modelling self-pollution of globular clusters from AGB stars
- 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
- Open clusters as key tracers of Galactic chemical evolution. III. Element abundances in Berkeley 20, Berkeley 29, Collinder 261, and Melotte 66
- Detailed chemical composition of the open cluster IC 4651: The iron peak, alpha elements, and Li
- The chemical abundance of the very metal rich old Open Clusters NGC 6253 and NGC 6791
- Abundances of four open clusters from solar stars
- Na-O Anticorrelation and Horizontal Branches. V. The Na-O anticorrelation in NGC 6441 from Giraffe spectra
- The Chemical Evolution of Helium in Globular Clusters: Implications for the Self-Pollution Scenario
- High-resolution spectroscopy of the old open cluster Collinder 261:abundances of Iron and other elements
Cited by in corpus (51)
- Multiple populations in globular clusters. Lessons learned from the Milky Way globular clusters
- Properties of stellar generations in Globular Clusters and relations with global parameters
- What is a globular cluster? An observational perspective
- Chemical abundance analysis of the Open Clusters Cr110, NGC2099 (M37), NGC2420, NGC7789 and M67 (NGC2682)
- Elemental Abundance Ratios in Stars of the Outer Galactic Disk. IV. A New Sample of Open Clusters
- On the Formation of Multiple Stellar Populations in Globular Clusters
- Building the Galactic halo from globular clusters: evidence from chemically unusual red giants
- Ruprecht 106: the first single population Globular Cluster?
- Secondary star formation within massive star clusters: Origin of multiple stellar populations in globular clusters
- Chemical abundance analysis of the Open Clusters Berkeley 32, NGC 752, Hyades and Praesepe
- Galactic Doppelganger: The chemical similarity among field stars and among stars with a common birth origin
- Searching for multiple stellar populations in the massive, old open cluster Berkeley 39
- Low-resolution spectroscopy of main sequence stars belonging to 12 Galactic globular clusters. I. CH and CN band strength variations
- The Unique Na:O Abundance Distribution in NGC 6791: The First Open(?) Cluster with Multiple Populations
- Searching for Chemical Signatures of Multiple Stellar Populations in the Old, Massive Open Cluster NGC 6791
- On The Birth Masses of the Ancient Globular Clusters
- Revisiting nucleosynthesis in globular clusters: the case of NGC 2808 and the role of He and K
- The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo
- Chemical composition of clump stars in the open cluster NGC 6134
- Massive open star clusters using the VVV survey I. Presentation of the data and description of the approach
- Quantifying Chemical Tagging: Towards Robust Group Finding in the Galaxy
- O, Na, Ba and Eu abundance patterns in open clusters
- Multiple stellar populations and their evolution in globular clusters: A nucleosynthesis perspective
- The Gaia-ESO Survey: Properties of the intermediate age open cluster NGC 4815
- High resolution elemental abundance analysis of the Hyades Supercluster
- Searching for GC-like abundance patterns in young massive clusters
- Chemical enrichment mechanisms in Omega Centauri: clues from neutron-capture elements
- High-resolution elemental abundance analysis of the open cluster IC 4756
- An extreme paucity of second population AGB stars in the normal globular cluster M4
- Abundances and physical parameters for stars in the open clusters NGC 5822 and IC 4756
- Lithium abundances in globular cluster giants: NGC 6218 (M12) and NGC 5904 (M5)
- ESO452-SC11: The lowest mass globular cluster with a potential chemical inhomogeneity
- Blood ties: the real nature of the LMC binary globular clusters NGC 2136 and NGC 2137
- NGC 6139: a normal massive globular cluster or a first-generation dominated cluster? Clues from the light elements
- On the sodium overabundance of giants in open clusters: The case of the Hyades
- The s-Process Enrichment of the Globular Clusters M4 and M22
- Young open clusters in the galactic star forming region NGC 6357
- Searching for chemical inhomogeneities in Open Clusters: Analysis of the CN and CH Molecular Band Strengths in NGC 2158, NGC 2420, NGC 2682, NGC 7789 and Berkeley 29
- Analysis of the CN and CH molecular band strengths in stars of the open cluster NGC 6791
- Should I Stay or Should I Go: Stellar Wind Retention and Expulsion in Massive Star Clusters
- NGC 6752 AGB Stars Revisited: I. Improved AGB temperatures remove apparent overionisation of Fe I
- Searching for Anomalies in the ZTF Catalog of Periodic Variable Stars
- Searching for globular cluster chemical anomalies on the main sequence of a young massive cluster
- The Chemical Evolution of Globular Clusters - II. Metals and Fluorine
- Globular cluster chemistry in fast rotating dwarf stars belonging to intermediate age open clusters
- Elemental abundances of intermediate age open cluster NGC 3680
- AGB subpopulations in the nearby globular cluster NGC 6397
- Multiple stellar populations at less evolved stages-II: no evidence of significant helium spread among NGC 1846 dwarfs
- Infrared photometry of Young Massive Clusters in the starburst galaxy NGC 4214
- Chemical evolution of star clusters
- Multiple stellar populations at less evolved stages-III: a possible helium spread in NGC 2210