Chemical evolution of star clusters
arXiv:0911.0792 · doi:10.1098/rsta.2009.0259
Abstract
I discuss the chemical evolution of star clusters, with emphasis on old globular clusters, in relation to their formation histories. Globular clusters clearly formed in a complex fashion, under markedly different conditions from any younger clusters presently known. Those special conditions must be linked to the early formation epoch of the Galaxy and must not have occurred since. While a link to the formation of globular clusters in dwarf galaxies has been suggested, present-day dwarf galaxies are not representative of the gravitational potential wells within which the globular clusters formed. Instead, a formation deep within the proto-Galaxy or within dark-matter minihaloes might be favoured. Not all globular clusters may have formed and evolved similarly. In particular, we may need to distinguish Galactic halo from Galactic bulge clusters.
27 pages, 2 figures. To appear as invited review article in a special issue of the Phil. Trans. Royal Soc. A: Ch. 6 "Star clusters as tracers of galactic star-formation histories" (ed. R. de Grijs). Fully peer reviewed. LaTeX, requires rspublic.cls style file
References in corpus (53)
- Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra
- Fast rotating massive stars and the origin of the abundance patterns in galactic globular clusters
- Formation and Dynamical Evolution of Multiple Stellar Generations in Globular Clusters
- Na-O Anticorrelation and HB. VIII. Proton-capture elements and metallicities in 17 globular clusters from UVES spectra
- Massive binaries as the source of abundance anomalies in globular clusters
- Spectroscopic and Photometric evidence of two stellar populations in the Galactic Globular Cluster NGC6121 (M4)
- Thermohaline mixing: A physical mechanism governing the photospheric composition of low-mass giants
- The ACS Survey of Galactic Globular Clusters. III. The Double Subgiant Branch of NGC 1851
- Deep Mixing of He-3: Reconciling Big Bang and Stellar Nucleosynthesis
- Age Determination of Six Intermediate-age SMC Star Clusters with HST/ACS
- The Effect of Stellar Rotation on Colour-Magnitude Diagrams: On the apparent presence of multiple populations in intermediate age stellar clusters
- A massive cluster of Red Supergiants at the base of the Scutum-Crux arm
- Origin of multiple stellar populations in globular clusters and their helium enrichment
- Multiple stellar populations in three rich Large Magellanic Cloud star clusters
- Discovery of an Extraordinarily Massive Cluster of Red Supergiants
- Multiple stellar populations in Magellanic Clouds clusters. I. An ordinary feature for intermediate age globulars in the LMC?
- M22: A [Fe/H] Abundance Range Revealed
- NGC 6441: another indication for a very high helium content in Globular Cluster stars
- A large C+N+O abundance spread in giant stars of the globular cluster NGC 1851
- Chemical Abundances and Kinematics in Globular Clusters and Local Group Dwarf Galaxies and Their Implications for Formation Theories of the Galactic Halo
- Radial distribution of the multiple stellar populations in omega Centauri
- Lithium and zirconium abundances in massive Galactic O-rich AGB stars
- Molecules and dust production in the Magellanic Clouds
- The chemical abundance of the very metal rich old Open Clusters NGC 6253 and NGC 6791
- A 500 Parsec Halo Surrounding the Galactic Globular NGC 1851
- The C+N+O abundances and the splitting of the subgiant branch in the Globular Cluster NGC 1851
- Giants in the globular cluster omega Centauri: dust production, mass loss and distance
- Comparing CN and CH Line Strengths in a Homogeneous Spectroscopic Sample of 8 Galactic Globular Clusters
- The Radial Distribution of the Two Stellar Populations in NGC 1851
- The Rotation of Sub-Populations in omega Centauri
- Globular Cluster Formation Within The Aquarius Simulation
- Old Main Sequence Turnoff Photometry in the Small Magellanic Cloud. II. Star Formation History and Its Spatial Gradients
- CNO enrichment by rotating AGB stars in globular clusters
- Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. III. Abundances and Velocities for a Sample of 14 Clusters
- O and Na abundance patterns in open clusters of the Galactic disk
- Variations in the lithium abundances of turn off stars in the globular cluster 47 Tuc
- Na-O Anticorrelation and HB. IV. Detection of He-rich and He-poor stellar populations in the globular cluster NGC 6218
- Constraints on Helium Enhancement in the Globular Cluster M3 (NGC 5272): The Horizontal Branch Test
- A spectral atlas of post-main-sequence stars in omega Centauri: kinematics, evolution, enrichment and interstellar medium
- Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy
- Massive star clusters in galaxies
- On the remote Galactic globular cluster NGC 2419
- All quiet in the outer halo: chemical abundances in the globular cluster Pal 3
- A revolution in star cluster research: setting the scene
- An HST/WFPC2 Survey of Bright Young Clusters in M31 III. Structural Parameters
- The environment of formation as a second parameter for globular cluster classification
- Young and intermediate-age massive star clusters
- Medium resolution spectroscopy in Omega Centauri: abundances of 400 subgiant and turn-off region
- Abundances on the Main Sequence of Omega Centauri
- Star clusters as laboratories for stellar and dynamical evolution
- A peculiar HI cloud near the distant globular cluster Pal 4
- On the origin of the helium-rich population in Omega Centauri
- The influence of the C+N+O abundances on the determination of the relative ages of Globular Clusters: the case of NGC 1851 and NGC 6121 (M4)